| 1884年 |
Mechanical pencil manufactured by Yamazaki Shoten |
This mechanical pencil was manufactured and sold by Yamazaki Shoten and has become a long-selling product. It is stamped with the brand mark ‘HOSIESU,’ which is currently used on TANAKA's jewelry products. |
| 1892年 |
Yamakami Kamekichi opens Shimizu Shoten |
Yamakami Kamekichi opened Shimizu Shoten (later Yamazaki Shoten and then TANAKA PRECIOUS METAL RETAILING) in Nihonbashi Bakurocho, Tokyo. |
| 1907年 |
EJIMAYA TANAKA SHOTEN founded |
EJIMAYA TANAKA SHOTEN is founded in Chuo City, Tokyo. |
| 1907年 |
Refined platinum from discarded light bulbs |
Successfully refined platinum from discarded light bulbs and processed it into platinum wire. Awarded for exhibiting platinum scientific and industrial instruments at the Tokyo Kankyo Fair. |
| 1907年 |
Refined platinum from discarded light bulbs and exhibited instruments |
Successfully refined platinum from discarded light bulbs and processed it into platinum wire. Awarded for exhibiting platinum scientific and industrial instruments at the Tokyo Kankyo Fair. |
| 1914年 |
Manufacturing platinum electrode plates for explosives |
Manufacturing platinum electrode plates required for the production of chlorates for explosives. |
| 1914年 |
Manufactured platinum electrode plates for chlorate production |
Manufacturing platinum electrode plates required for the production of chlorates for explosives |
| 1915年 |
Completed platinum-iridium alloy injection needle |
Completion of platinum-iridium alloy injection needle |
| 1918年 |
Established TANAKA SHOTEN Co., Ltd. |
TANAKA SHOTEN Co., Ltd. |
| 1918年 |
Adopted 'Platinum, Gold, Silver' branding after incorporation |
TANAKA, which had come to focus on handling platinum in this way, began to use 'Platinum, Gold, Silver' in its newspaper advertisements, furoshiki (wrapping cloth), and business cards after becoming a corporation (in 1918) with platinum listed first. |
| 1921年 |
Started production of contact materials for telecommunications equipment |
Start of production of contact materials for telecommunications equipment |
| 1923年 |
General Agency Agreement with Soviet Union |
General Agency Agreement for Platinum and Palladium with the Soviet Union. |
| 1923年 |
Signed General Agency Agreement with Soviet Union |
General Agency Agreement for Platinum and Palladium with the Soviet Union |
| 1923年 |
Received oil painting 'Peasant Girl' from Soviet government |
Oil painting 'Peasant Girl' presented by the Soviet Union government |
| 1923年 |
General Agency Agreement for Platinum and Palladium with the Soviet Union |
General Agency Agreement for Platinum and Palladium with the Soviet Union |
| 1930年 |
Domesticated platinum gauze for catalysts |
Successful in domesticating platinum gauze for catalysts |
| 1930年 |
Platinum gauze for catalysts shaped company direction |
Platinum gauze for catalysts that shaped TANAKA's direction (Photo taken after World War II) |
| 1930年 |
Developed technology for weaving platinum gauze and platinum iridium wire |
After successfully domesticating platinum fine wire, the Company began developing a technology for weaving platinum gauze using this wire. Since processing platinum is more difficult than processing gold or silver, the Company invited a French engineer named Kine to conduct research. As a result, the Company succeeded in manufacturing Japan's first platinum gauze for catalysts. This research was also applied to the successful development of platinum iridium wire. This technology would later be applied to the manufacturing of gold ultra-fine wire and lead to the manufacturing of bonding wire. |
| 1934年 |
Purchased and melted silver coins from China and Korea for export |
Purchases and melts silver coins from China and Korea, then exports them to Johnson Matthey in the UK. |
| 1939年 |
Completed Platinum vs Platinum-Rhodium Thermocouple |
Completion of Platinum vs Platinum-Rhodium Thermocouple |
| 1939年 |
Completed Platinum-Iridium Alloy Wire for Electric Detonators |
Completion of Platinum-Iridium Alloy Wire for Electric Detonators |
| 1943年 |
Company name changed to TANAKA PRECIOUS METAL TECHNOLOGIES CO., LTD. |
Company name changed to TANAKA PRECIOUS METAL TECHNOLOGIES CO., LTD. |
| 1948年 |
Designated by the Ministry of Health, Labour and Welfare as a manufacturer and seller of precious metals for dental use |
Designated by the Ministry of Health, Labour and Welfare as a manufacturer and seller of precious metals for dental use |
| 1949年 |
Started manufacturing nozzles for chemical fibers |
Started manufacturing nozzles for chemical fibers. Process in the early postwar period for manufacturing nozzles in which drilling is performed. The textile industry rapidly developed after the war. In order to meet the needs of this industry, we began manufacturing nozzles for chemical fibers at a partner factory in Kawanishi City, Hyogo Prefecture. Initially, the technology for making holes in nozzles was primitive, and holes were made by spinning thick paper placed on a iron base. |
| 1949年 |
Manufacturing nozzles for chemical fibers |
Process in the early postwar period for manufacturing nozzles in which drilling is performed. The textile industry rapidly developed after the war. In order to meet the needs of this industry, we began manufacturing nozzles for chemical fibers at a partner factory in Kawanishi City, Hyogo Prefecture. Initially, the technology for making holes in nozzles was primitive, and holes were made by spinning thick paper placed on a iron base. |
| 1952年 |
Designated as a 'Gold Dealer' by the Ministry of Finance |
Designated as a 'Gold Dealer' by the Ministry of Finance |
| 1955年 |
Started production of contacts for crossbar telephone exchanges upon request from NTT |
Started production of contacts for crossbar telephone exchanges upon request from NTT. Micro profiles (contact tapes) were mainly manufactured at the Hiratsuka Plant. One of the policies implemented by GHQ for Japan's postwar reconstruction was the development of telecommunication networks. Among these, the adoption of automatic switching systems that automatically connect telephone lines was promoted, and TANAKA PRECIOUS METAL TECHNOLOGIES was responsible for manufacturing the relays used in these systems. TANAKA PRECIOUS METAL TECHNOLOGIES conducted import negotiations with the Soviet Union to secure palladium, one of the materials used in contacts. It is said that the negotiations proceeded smoothly as there were ties with TANAKA PRECIOUS METAL TECHNOLOGIES regarding platinum imports before the war. |
| 1955年 |
Started production of contacts for crossbar telephone exchanges upon request from NTT |
Started production of contacts for crossbar telephone exchanges upon request from NTT. |
| 1955年 |
Development of 10 micrometer gold bonding wire |
With the revitalization of the IC and other electronic industries, the demand for gold bonding wire (metal ultra-fine wire) has also increased. The Ministry of International Trade and Industry requested TANAKA PRECIOUS METAL TECHNOLOGIES to develop bonding wire with a diameter of 10 micrometers (micrometers). Although the company had successfully domestically produced platinum wire with a diameter of 10 micrometers, gold ultra-fine wire had 25 micrometers as the finest product. After seeking guidance from semiconductor manufacturers, the bonding wire was finally completed this year. Bonding wire remains one of TANAKA's main products to this day. |
| 1955年 |
Started production of contacts for crossbar telephone exchanges |
Started production of contacts for crossbar telephone exchanges upon request from NTT |
| 1960年 |
Completion of Hiratsuka Plant |
Completion of Hiratsuka Plant |
| 1960年 |
Commencement of production of platinum group plating solutions |
Commencement of production of platinum group plating solutions |
| 1961年 |
TANAKA ELECTRONICS CO., LTD. is established and full-scale production of bonding wires for semiconductors begins. |
TANAKA ELECTRONICS CO., LTD. is established and full-scale production of bonding wires for semiconductors begins. |
| 1963年 |
Completion of Mitaka Plant |
TANAKA ELECTRONICS's Mitaka Plant, completed in 1963 (Showa 38) in Mitaka City, Tokyo |
| 1964年 |
Domestic production of gold ultra-fine wire for IC leads |
Domestic production of gold ultra-fine wire for IC leads |
| 1964年 |
Started manufacturing bonding wires in Japan |
Started manufacturing bonding wires in Japan, which were all imported at the time. |
| 1964年 |
Completed manufacturing technology for micro profiles (contact tapes) |
Completed manufacturing technology for micro profiles (contact tapes). |
| 1964年 |
Started manufacturing platinum-nickel alloy ball contacts |
Started manufacturing platinum-nickel alloy ball contacts. |
| 1964年 |
Domestic production of gold ultra-fine wire for IC leads |
Domestic production of gold ultra-fine wire for IC leads. |
| 1964年 |
Domestic production of gold ultra-fine wire for IC leads |
Domestic production of gold ultra-fine wire for IC leads |
| 1965年 |
Successful in domesticating platinum gauze for catalysts |
Successful in domesticating platinum gauze for catalysts |
| 1965年 |
Successful in domesticating platinum gauze for catalysts |
Successful in domesticating platinum gauze for catalysts. |
| 1965年 |
Established Nippon Electroplating Engineers (now EEJA Ltd.) and began the business of plating solutions and plating equipment |
Established in 1965 as Nippon Electroplating Engineers (now EEJA Ltd.) and began the business of plating solutions and plating equipment. |
| 1965年 |
Domestic production of gold ultra-fine wire for IC leads |
Domestic production of gold ultra-fine wire for IC leads. |
| 1969年 |
TANAKA and Johnson Matthey form joint venture TANAKA MATTHEY |
TANAKA and Johnson Matthey form joint venture TANAKA MATTHEY. |
| 1970年 |
TANAKA's Establishment of TANAKA |
TANAKA's Establishment of TANAKA. |
| 1973年 |
Completion of Isehara Plant |
Completion of Isehara Plant. |
| 1974年 |
Established Heesung Metal Co., Ltd., a joint venture with the LT Group, in Korea |
Established Heesung Metal Co., Ltd., a joint venture with the LT Group, in Korea. |
| 1974年 |
Ichikawa Factory completed |
Ichikawa Factory completed. |
| 1978年 |
Recognized as an accredited refiner and assayer by the London Bullion Market Association (LBMA) |
Recognized as an accredited refiner and assayer by the London Bullion Market Association (LBMA), the registration and accreditation body of the London gold market. |
| 1978年 |
1 kg gold bar refined and melted |
1 kg gold bar refined and melted by TANAKA PRECIOUS METAL TECHNOLOGIES |
| 1978年 |
First accredited melter and assayer in Japan |
TANAKA PRECIOUS METAL TECHNOLOGIES sent pure gold bars it had melted and refined in-house to the London Gold Market, the most prestigious gold market in the world, and became the first company in Japan to be accredited as an official melter and assayer. Recognized as an accredited refiner and assayer by the London Bullion Market Association (LBMA) |
| 1979年 |
Establishment of TANAKA Electronics Singapore |
TANAKA ELECTRONICS SINGAPORE (PTE.) LTD. established and began production of cadmium-free contact materials |
| 1980年 |
First Gold Monthly Purchase System in Japan |
First in Japan to introduce a 'Gold Monthly Purchase System' |
| 1980年 |
Pamphlets for Fixed Amount Purchase System |
Various pamphlets created to explain the Fixed Amount Purchase System |
| 1980年 |
First in Japan to introduce a Gold Monthly Purchase System |
First in Japan to introduce a 'Gold Monthly Purchase System'. |
| 1984年 |
Launch of Platinum Fixed Price Purchase System |
In 1984, the Platinum Fixed Price Purchase System was also launched |
| 1985年 |
Publication of commemorative book |
On the 100th anniversary of its founding, TANAKA publishes commemorative book, Science of Precious Metals |
| 1985年 |
100th anniversary commemorative book published |
On the 100th anniversary of its founding, TANAKA publishes commemorative book, Science of Precious Metals. This year marks the 100th anniversary of the founding of TANAKA's predecessor, Eishimaya TANAKA SHOTEN, in 1885 (Meiji 18). At that time, the president, Junichiro TANAKA, decided to publish a book on the industrial value of precious metals, rather than holding a typical anniversary event, as he wanted to do something that would be useful to society. The authors were TANAKA's engineers and other prominent researchers of precious metals in Japan. The book consists of three volumes: 'Preface,' 'Fundamentals,' and 'Applications'. |
| 1986年 |
TANAKA PRECIOUS METAL TECHNOLOGIES (TAIWAN) CO., LTD. established |
TANAKA PRECIOUS METAL TECHNOLOGIES (TAIWAN) CO., LTD. established. |
| 1990年 |
YAMAZAKI Co., Ltd. changes company name to TANAKA |
YAMAZAKI Co., Ltd. Changes Company Name to TANAKA. |
| 1990年 |
YAMAZAKI CORPORATION changes company name to TANAKA PRECIOUS METALS JEWELRY |
YAMAZAKI CORPORATION Changes Company Name to TANAKA PRECIOUS METALS JEWELRY. |
| 1991年 |
Looking toward a future of diversification |
Looking toward a future of diversification. The fields in which precious metals are used are continuing to expand, and as a result, TANAKA's products are becoming increasingly diverse. We are also increasing our bases overseas and are enhancing our system for globally providing products and technologies. With our unwavering trust and reliability, we will continue to move toward the future. |
| 1991年 |
Nippon PGM Co., Ltd. established and Iwate Plant completed |
Nippon PGM Co., Ltd. established. Iwate Plant completed. |
| 1994年 |
TANAKA ELECTRONICS (MALAYSIA) SDN. BHD. established, TOMIOKA FACTORY completed, gold bonding wire GPG type announced |
Established TANAKA ELECTRONICS (MALAYSIA) SDN. BHD. Completed TOMIOKA FACTORY TANAKA ELECTRONICS announces gold bonding wire GPG type. |
| 1995年 |
EEJA launches fully automatic plating system for 8-inch semiconductor wafers |
EEJA to Launch Fully Automatic Plating System for 8-Inch Semiconductor Wafers. |
| 1996年 |
TANAKA L.T. INTERNATIONAL CO., LTD. established |
TANAKA L.T. INTERNATIONAL CO., LTD. established. |
| 2001年 |
Revised edition of commemorative book published |
A revised edition of the book, titled 'Applied Edition,' was also published in 2001. |
| 2001年 |
Establishment of TANAKA ELECTRONICS (HANGZHOU) CO., LTD. |
Establishment of TANAKA ELECTRONICS (HANGZHOU) CO., LTD. |
| 2002年 |
TANAKA TAISEI CO., LTD. changes store name to 'GINZA TANAKA' |
TANAKA TAISEI CO., LTD. Changes Store Name to 'GINZA TANAKA'. |
| 2003年 |
Appointed as an Approved Assayer of the London Bullion Market |
Appointed as an Approved Assayer of the London Bullion Market. |
| 2006年 |
Head Office Relocated to Marunouchi |
TANAKA PRECIOUS METAL TECHNOLOGIES Head Office Relocated to Marunouchi |
| 2009年 |
Appointed as an accredited assayer by LPPM |
Appointed as an accredited assayer by the London Platinum & Palladium Market (LPPM) |
| 2010年 |
TANAKA PRECIOUS METAL GROUP reorganizes to new system centered on TANA HOLDINGS |
TANAKA PRECIOUS METAL GROUP will reorganize and transition to a new system centered on TANA HOLDINGS, a pure holding company. |
| 2010年 |
Established TANAKA HOLDINGS CO., LTD. and transitioned to holding company system |
In this year, TANAKA established a holding company, TANAKA HOLDINGS CO., LTD., and transitioned to a holding company system. The purpose of this transition is to facilitate smoother communication within the Group and to further enhance the flexibility of its operations. |
| 2010年 |
TANAKA PRECIOUS METAL GROUP reorganizes to new system centered on TANA HOLDINGS |
TANAKA PRECIOUS METAL GROUP will reorganize and transition to a new system centered on TANA HOLDINGS, a pure holding company. |
| 2011年 |
Established Chengdu Guangming TANAKA Environmental Technology Co., Ltd. |
Established Chengdu Guangming TANAKA Environmental Technology Co., Ltd. |
| 2012年 |
TANAKA PRECIOUS METAL TECHNOLOGIES recognized as full member of LBMA |
TANAKA PRECIOUS METAL TECHNOLOGIES has been recognized as a full member of the London Bullion Market Association (LBMA). This is the first time for a company in Japan to receive this recognition. With this recognition, TANAKA PRECIOUS METAL TECHNOLOGIES will have voting rights on agenda items discussed at LBMA's general meetings and other events, and will be able to send members to its Board of Directors and subcommittees. This will also give the Company significant influence on the development of the gold and silver markets in Asia. For our customers, this recognition is a sign that we can provide even greater trust and reassurance. |
| 2013年 |
Established Chengdu Guangming Paite Precious Metal Co., Ltd. |
Established Chengdu Guangming Paite Precious Metal Co., Ltd. |
| 2013年 |
Completed the Development Center of the FC Catalyst Center |
Completed the Development Center of the FC Catalyst Center. |
| 2013年 |
Started providing bonding materials for ultra-miniature crystal oscillator packages |
Started providing bonding materials for ultra-miniature crystal oscillator packages. |
| 2014年 |
EEJA starts providing gold electrodeposition solution for semiconductor package substrates that does not use cyanide compounds |
EEJA Starts Providing Gold Electrodeposition Solution for Semiconductor Package Substrates That Does Not Use Cyanide Compounds. |
| 2015年 |
Recognized as full member of LPPM |
In 2015, the Company was also recognized as a full member of the London Platinum and Palladium Market (LPPM). |
| 2015年 |
TANAKA FOUNDATION FOR METAL RESOURCES established as a general incorporated foundation |
TANAKA FOUNDATION FOR METAL RESOURCES established as a general incorporated foundation. |
| 2015年 |
Joint development of catalysts for efficient tritium recovery with JAEA |
Joint development of catalysts for the efficient recovery of tritium from nuclear fusion with JAEA (Japan Atomic Energy Agency). |
| 2015年 |
Start of sales of RAD PLATER |
Start of sales of RAD PLATER, a super-miniature plating experimental device with a semiconductor wafer cup that can form plating similar to mass-produced machines. |
| 2015年 |
Recognized as a full member of the London Platinum & Palladium Market (LPPM) |
Recognized as a full member of the London Platinum & Palladium Market (LPPM). |
| 2015年 |
EEJA (Shanghai) Co., Ltd. established |
EEJA (Shanghai) Co., Ltd. established. |
| 2015年 |
TANAKA America Inc. established |
TANAKA America Inc. established. |
| 2015年 |
TANAKA ADVANCED MATERIALS (NINGBO) CO., LTD. established |
TANAKA ADVANCED MATERIALS (NINGBO) CO., LTD. established. |
| 2016年 |
Sales of Platinum Vienna Philharmonic Coin Harmony started |
Sales of Platinum Vienna Philharmonic Coin Harmony have Started |
| 2016年 |
Start of sales of Platinum Vienna Coin Harmony |
Start of sales of Platinum Vienna Coin Harmony. |
| 2016年 |
Developed Zika virus detection reagent |
Develops Zika virus detection reagent. First in the world to successfully directly detect Zika virus in blood using the immunochromatography method. |
| 2016年 |
Vienna Philharmonic Coin in Gold well received by customers |
The Vienna Philharmonic Coin in Gold, issued by the Austrian Mint, has been well received by many customers with TANAKA PRECIOUS METAL TECHNOLOGIES as its general agent in Japan. |
| 2016年04月 |
Platinum Vienna Philharmonic Coin launched |
In April of this year, the Platinum Vienna Philharmonic Coin was newly launched. |
| 2017年 |
TANAKA Advanced Materials (Chengdu) Co., Ltd. established |
TANAKA Advanced Materials (Chengdu) Co., Ltd. established. |
| 2017年 |
EEJA develops Direct Pattern Plating |
EEJA develops Direct Pattern Plating. |
| 2018年 |
TANAKA PRECIOUS METAL TECHNOLOGIES CO., LTD. acquires all shares of EEJA |
TANAKA PRECIOUS METAL TECHNOLOGIES CO., LTD. has acquired all shares of EEJA from Alent Holdings B.V., which holds 50% of EEJA's shares. |
| 2018年 |
EEJA becomes wholly owned subsidiary of TANAKA PRECIOUS METAL TECHNOLOGIES |
As a result, EEJA will become a wholly owned subsidiary of TANAKA PRECIOUS METAL TECHNOLOGIES. |
| 2018年 |
Start of sample offering for SKe-Lid |
Start of sample offering for SKe-Lid, a gold-tin-coated quartz glass lid for deep ultraviolet LEDs. |
| 2019年 |
TANAKA (INDIA) PRIVATE LIMITED established |
TANAKA (INDIA) PRIVATE LIMITED established. |
| 2020年 |
Appointed Koichiro Tanaka as President and CEO |
Appointed Koichiro Tanaka as President and CEO. |
| 2021年 |
Developed active brazing filler metal/copper composite for power devices |
Developed active brazing filler metal/copper composite for power devices. |
| 2021年 |
Developed low-temperature-sintering nano silver paste for screen printing |
Developed low-temperature-sintering nano silver paste for screen printing. |
| 2023年 |
Establishment of METALOR TANAKA Electrical Materials (Suzhou) Ltd. |
Establishment of METALOR TANAKA Electrical Materials (Suzhou) Ltd. |
| 2024年 |
Head office relocated to Kayabacho |
Head office relocated to Kayabacho, the site of its founding. |
| 2024年 |
Joint management with LT Group at LT Metal Co., Ltd. discontinued |
Joint management with LT Group at joint venture LT Metal Co., Ltd. (formerly KISEI METAL Co., Ltd.) discontinued. |
| 2025年 |
TANAKA PRECIOUS METAL GROUP CO., LTD. shifts to management system centered on TANAKA |
TANAKA PRECIOUS METAL GROUP CO., LTD. will shift to a management system centered on TANAKA with the aim of streamlining management and achieving sustainable growth. |
