NAKAKITA SEISAKUSHO CO.,LTD.

The first president, Nakahoku Bensho, began manufacturing automatic control valves as a sole proprietorship in Matsugae-cho, Kita-ku, Osaka City.

May 1930: Started production of automatic control valves in Matsugae-cho, Kita-ku, Osaka, under a private enterprise owned by Mr. Benzo Nakakita, the first president of Nakakita Seisakusho Co., Ltd.

Commenced production of automatic control valves at Matsugae-cho, Kita-ku, Osaka, under a private enterprise owned by Mr. Benzo Nakakita, the first president of Nakakita Seisakusho Co., Ltd.

Moved to Imai-cho, Kita-ku, Osaka City, and changed to a corporate organization.

May 1937: Moved to Imai-cho, Kita-ku, Osaka, and incorporated.

Moved to Imai-cho, Kita-ku, Osaka, and incorporated.

Relocated to Gamo-cho, Joto-ku, Osaka City, and increased capital to 1 million yen.

Jun. 1939 : Moved to Gamo-cho, Joto-ku, Osaka City, and increased capital to ¥1,000,000.

Moved to Gamo-cho, Joto-ku, Osaka City, and increased capital to ¥1,000,000.

Designated as a naval management factory and ordered to produce valves for transport ships.

May 1942: Designated as a Navy-controlled factory and ordered to produce valves for transport ships.

Designated as a Navy-controlled factory and ordered to manufacture valves for transport ships.

Reopened Tokyo sales office and established Kyushu branch office.

January 1950: Reopened Tokyo office and established Kyushu office.

Reopened Tokyo office and opened Kyushu office.

Received a research grant from the Ministry of Transport for the study on "De-superheater."

A scientific and technological research grant is awarded by the Ministry of Transport for "Research on desuperheater."

Based on the designation as a factory under the Specific Machinery Promotion Law, received financing from the Development Bank of Japan upon recommendation by the Ministry of International Trade and Industry, and enhanced facilities with advanced machine tools and inspection equipment.

March 1958: At the recommendation of the Ministry of International Trade and Industry, received a loan from the Japan Development Bank to upgrade equipment, including state-of-the-art machine tools and inspection equipment.

At the recommendation of the Ministry of International Trade and Industry, the company received a loan from the Japan Development Bank to upgrade its equipment, including state-of-the-art machine tools and inspection equipment.

Increased capital to 28 million yen.

December 1958: Capital increased to ¥28,000,000.

Increased capital to ¥28,000,000.

Celebrated the 30th anniversary and purchased land in Daito City for factory expansion.

May 1959 : Celebrating the 30th anniversary of our founding, we purchased land in Daito City as a site for factory expansion.

Celebrating the 30th anniversary of our founding, we purchased land in Daito City as a site for factory expansion.

Increased capital to 35 million yen.

December 1959: Capital increased to ¥35,000,000.

Increased capital to ¥35,000,000.

Started Phase 1 construction of Daito Factory and received a research grant from the Ministry of Transport for "Research on Automatic Temperature Control of Diesel Ship Cooling Water."

June 1960: Completed the first phase of the Daito Plant construction and moved the machining shop to this location.

June 1960: Received a scientific and technological research grant from the Ministry of Transport for 'research on automatic temperature adjustment of cooling water for diesel ships'.

Commenced construction of Phase 1 of the Daito factory.

Received a grant for experimental research on automatic temperature control of diesel ship cooling water from the Ministry of Transport.

Completed first-phase construction of the Daito Plant and transferred the machining shop to this location.

A scientific and technological research grant is awarded by the Ministry of Transport for "research on automatic temperature adjustment of cooling water for diesel ships."

Completed Phase 1 construction of Daito Factory and commenced operation of the machine work factory.

November 1960: Completed the first phase of construction at the Daito factory and began operation of the machine shop.

The first phase of construction at the Daito factory was completed and the machine shop began operation.

Received second-phase financing from the Development Bank of Japan under the Specific Machinery Promotion Law, and equipped Daito Machine Factory with advanced machine tools.

December 1960: Secured a second loan from the Japan Development Bank under the Machinery Promotion Act to equip Daito Machinery Factory with advanced machine tools.

Received a second loan from the Japan Development Bank under the Specified Machinery Promotion Act to equip Daito Machinery Factory with cutting-edge machine tools.

Completed Phase 2 construction of Daito Factory and commenced operation as an assembly plant.

October 1961: Completed the second phase of construction at the Daito Plant and used the new plant as an assembly shop.

Completed second-phase construction of the Daito Plant and used the new plant as an assembly shop.

Increased capital to 56 million yen.

October 1962: Capital increased to ¥56,000,000.

Increased capital to ¥56,000,000.

Received a science and technology research grant from the Ministry of Transport for "Research on Rubber Lining Butterfly Valves."

June 1963: Received a scientific and technological research grant from the Ministry of Transport for 'research on rubber-lined butterfly valves'.

A scientific and technological research grant is awarded by the Ministry of Transport for "research on rubber-lined butterfly valves."

The first president, Bensho Nakahoku, passed away, and Hiroshi Nakahoku was appointed as the second president.

November 1965: Mr. Hiroshi Nakakita was inaugurated as the new president.

Mr. Hiroshi Nakakita was inaugurated as the new president.

Obtain certification for Type 2 High-Pressure Gas.

March 1968: Obtained High-Pressure Gas Class 2 certification.

Obtained High-Pressure Gas Class 2 certification.

Increase capital to 112 million yen.

January 1970: Capital increased to ¥112,000,000.

Increased capital to ¥112,000,000.

Completion of the Daito new factory and consolidation of the head office factory in Daito.

May 1970 : Completed construction of the Daito Plant and consolidated all relevant divisions into the new plant.

Completed construction of the Daito Plant and consolidated all relevant divisions into the new plant.

Celebrate the 40th anniversary and showcase the new factory to related parties.

Jun. 1970 : Celebrating the 40th anniversary of its founding, the company unveiled the completion of its new factory to related parties.

Celebrating the 40th anniversary of its founding, the company unveiled the completion of its new factory to related parties.

Aug. 1970 : Received a research grant from the Marine Equipment Development Association.

Received research subsidies from the Ship Equipment Development Association Foundation for the valve opening degree meter and strip termination detection device.

Received a research grant from the Marine Equipment Development Association.

Receive approval for welding methods based on the Electrical Business Law from the Ministry of International Trade and Industry.

Jun. 1971 : Obtained approval from the Ministry of International Trade and Industry for welding methods based on the Electricity Business Law.

Obtained approval from the Ministry of International Trade and Industry for welding methods based on the Electricity Business Law.

Increase capital to 370 million yen and list on the Osaka Securities Exchange.

Dec. 1971 : Increased capital to ¥370,000,000 and listed shares on the Osaka Securities Exchange.

Capital increased to 370 million yen, and shares were listed on the Osaka Stock Exchange.

Increased capital to ¥370,000,000 and listed shares on the Osaka Securities Exchange.

Completion of the new company building within the Daito factory and relocation of head office operations.

Dec. 1972 : Completed a new office building at the Daito Plant to integrate company operations and relocated head office operations.

Completed a new corporate building within the Daito factory to integrate operations, and relocated headquarters operations.

Completed a new office building at the Daito Plant to integrate company operations and relocated head office operations.

Increase capital to 600 million yen.

Dec. 1973 : Increased capital to ¥600,000,000.

Increased capital to ¥600,000,000.

Increase capital to 1 billion yen.

Dec. 1974 : Increased capital to ¥1,000,000,000.

Increased capital to ¥1,000,000,000.

Increase capital to 1.15 billion yen.

Jun. 1975 : Increased capital to ¥1,150,000,000.

Increased capital to ¥1,150,000,000.

Expand the scope of certification for high-pressure gas type approval by the Minister.

May 1976 : Expanded the scope of high-pressure gas and Ministerial Certification (Ministry of International Trade and Industry).

Expanded the scope of high-pressure gas and Ministerial Certification (Ministry of International Trade and Industry).

Certified for use of safety valve V and UV stamps by the American Society of Mechanical Engineers (ASME).

Jan. 1979 : Obtained American Society of Mechanical Engineers (ASME) Certificates of Authorization to use safety valve V and UV stamps.

Obtained American Society of Mechanical Engineers (ASME) Certificates of Authorization to use safety valve V and UV stamps.

Implement a production management system (NAPS) using large-scale computers to improve efficiency and reliability.

Mar. 1985 : A large computer production management system (NAPS) was introduced to improve efficiency and reliability.

A large computer production management system (NAPS) was introduced to improve efficiency and reliability.

Introduce CAD-based design OA system (NADAS) to improve design efficiency and reliability.

Jun. 1988 : CAD-based design OA system (NADAS) was introduced to improve design efficiency and reliability.

CAD-based design OA system (NADAS) was introduced to improve design efficiency and reliability.

Expand the scope of high-pressure gas type approval certification by the Minister.

Jul. 1988 : Expanded the scope of high-pressure gas and Ministerial Certification (Ministry of International Trade and Industry).

Expanded the scope of high-pressure gas and Ministerial Certification (Ministry of International Trade and Industry).

Equip with advanced machine tools including machining centers (MCs).

Jan. 1989 : Fully equipped with cutting-edge machine tools including machining centers.

Fully equipped with cutting-edge machine tools including machining centers.

Proceed with and complete significant updates (relocations) to robot-equipped MC/NC advanced machine tools.

Apr. 1993 : Completed major upgrade to state-of-the-art MC/NC machine tool with robot.

Completed major upgrade to state-of-the-art MC/NC machine tool with robot.

Advance networking through large-scale input of CAD (WS) and electronic files to enhance the design OA system.

Aug. 1994 : Promoted networking by introducing a large amount of CAD and electronic files, and aimed to increase the strength of the design system.

Promoted networking by introducing a large amount of CAD and electronic files, and aimed to increase the strength of the design system.

Obtain certification from the certification body (LRQA) for the quality system for product design and manufacturing based on international standards (ISO9001).

Sep. 1994 : Obtained certification for the “Quality System” for product design and manufacturing based on International Standards (ISO 9001). (Certifying body: LRQA)

Obtained certification for the “Quality System” for product design and manufacturing based on International Standards (ISO 9001). (Certifying body: LRQA)

Shu Nakatakita assumes the position of third-generation president.

Feb. 1997 : Mr. Hiroshi Nakakita was inaugurated as the chairman and Mr. Osamu Nakakita as president.

Mr. Hiroshi Nakakita was inaugurated as the chairman and Mr. Osamu Nakakita as president.

Three-dimensional measuring machines are introduced, demonstrating power in verifying processing accuracy of parts.

May 1999 : Introduced a three-dimensional measuring machine and demonstrated its power in verifying the machining accuracy of parts.

Introduced a three-dimensional measuring machine and demonstrated its power in verifying the machining accuracy of parts.

Rebuilding the electronic filing system to enhance document management.

Jun. 1999 : Rebuild the electronic filing system and improve document management.

Rebuild the electronic filing system and improve document management.

Improving sales operations efficiency through the construction of a sales support system.

Oct. 2000 : A sales support system was built and sales operations became more efficient.

A sales support system was built and sales operations became more efficient.

Enhancing document management by introducing an intelligent document management system.

Mar. 2001 : Document management has been improved by introducing an intelligent document management system.

Document management has been improved by introducing an intelligent document management system.

Updating large-scale computers, reconstructing CAD, and introducing Product Data Management (PDMACE).

Aug. 2002 : Renewal of large computers, CAD reconstruction, and introduction of product configuration management (PDMACE).

Renewal of large computers, CAD reconstruction, and introduction of product configuration management (PDMACE).

Obtained CE marking PED (Pressure Equipment Directive) certification (certification body LRQA).

Feb. 2003 : Obtained CE marking certification for Pressure Equipment Directive (PED) products. (Certifying body: LR)

Obtained CE marking certification for Pressure Equipment Directive (PED) products. (Certifying body: LR)

Kenichi Nakakita assumes the position of the fourth president.

Aug. 2004 : Mr. Kenichi was inaugurated Nakakita as president.

Mr. Kenichi was inaugurated Nakakita as president.

Formed a business alliance with Sasakura Co., Ltd. regarding the manufacture and sale of ultra-low temperature butterfly valves for LNG ships.

Aug. 2005 : Collaborated with Sasakura Co., Ltd. for the manufacture and sales of cryogenic butterfly valves for LNG ships.

Collaborated with Sasakura Co., Ltd. for the manufacture and sales of cryogenic butterfly valves for LNG ships.

Completion of the East Factory.

Dec. 2009 : Completed the Nuclear Valve Assembly Shop.

East factory completed.

Completed the Nuclear Valve Assembly Shop.

Established a development room within the technical department.

Jan. 2010 : Established a development office within the engineering department.

Established a development room within the technology department.

Established a development office within the engineering department.

Obtained Eco Action 21 certification at the headquarters factory.

Nov. 2011 : Obtained environmental management system (EcoAction 21) certification for the head office plant.

Obtained Eco Action 21 certification (headquarters factory).

Obtained environmental management system (EcoAction 21) certification for the head office plant.

Adopted cell production system in the processing section to pursue productivity and reduce idle time.

May 2013 : A cell production system was adopted in the processing department to pursue productivity and shorten residence time.

A cell production system was adopted in the processing department to pursue productivity and shorten residence time.

Merged with the Osaka Securities Exchange and listed on the Tokyo Stock Exchange.

President Kenichi Nakakita received the Minister's Award for Maritime Industry Contributions on Marine Day.

Jul. 2013 : Listed shares on the Tokyo Stock Exchange in conjunction with the merging of the Tokyo Stock Exchange and Osaka Securities Exchange.

Jul. 2013 : President Kenichi Nakakita receives the Minister's Award for Meritorious Contributions to Maritime Affairs.

President Kenichi Nakakita received the Minister's Award for Maritime Service on Marine Day.

Listed shares on the Tokyo Stock Exchange in conjunction with the merging of the Tokyo Stock Exchange and Osaka Securities Exchange.

President Kenichi Nakakita receives the Minister's Award for Meritorious Contributions to Maritime Affairs.

Obtained Eco Action 21 certification (Tokyo Sales Office and Kitakyushu Sales Office).

Nov. 2013 : Obtained environmental management system(EcoAction 21) certification for the Tokyo and Kitakyushu offices.

Obtained Eco Action 21 certification (Tokyo office & Kitakyushu office).

Obtained environmental management system(EcoAction 21) certification for the Tokyo and Kitakyushu offices.

Obtained MED mark certification for cargo hold flooding alarm system from DNV GL.

Oct. 2014 : Obtained MED mark Certification from DNV GL for cargo Hold Water Ingress Alarm Systems.

Obtained MED mark certification for cargo warehouse flood alarm device from DNV-GL.

Obtained MED mark Certification from DNV GL for cargo Hold Water Ingress Alarm Systems.

Introduced a 5-axis vertical machining center to consolidate processes and improve manufacturing productivity.

May 2015 : By introducing a 5-axis machining center, we worked on process consolidation and improved processing productivity.

By introducing a 5-axis machining center, we worked on process consolidation and improved processing productivity.

Obtained IECEx certification for intrinsically safe explosion-proof solenoid valves.

Jun. 2015 : Obtained IECEx Certification for intrinsically safe explosion-proof solenoid valves.

Obtained IECEx certification for intrinsically safe explosion-proof solenoid valve.

Obtained IECEx Certification for intrinsically safe explosion-proof solenoid valves.

President Kenichi Nakakita received the Yellow Ribbon Medal.

Nov. 2016 : President Kenichi Nakakita receives the Medal with Yellow Ribbon.

President Kenichi Nakakita received the Order of the Rising Sun.

President Kenichi Nakakita receives the Medal with Yellow Ribbon.

Established a research and development room.

Jan. 2018 : Established research and development office.

Established a research and development room.

Established research and development office.

Mr. Akihisa Miyata was appointed as the fifth president.

Aug. 2019 : Mr. Kenichi Nakakita was inaugurated as the chairman and Mr. Teruhisa Miyata as president.

Miyata Akihisa became the fifth president.

Mr. Kenichi Nakakita was inaugurated as the chairman and Mr. Teruhisa Miyata as president.

Selected for the Hydrogen Society Construction Technology Development Project by the National Research and Development Agency NEDO.

Jun. 2020 : Recognized by Japan New Energy and Industrial Technology Development Organization (NEDO) for participation in the Development of Technologies for Realizing the Hydrogen Society project.

Selected for the NEDO Hydrogen Society Construction Technology Development Project.

Recognized by Japan New Energy and Industrial Technology Development Organization (NEDO) for participation in the Development of Technologies for Realizing the Hydrogen Society project.

Due to the review of the market classification by the Tokyo Stock Exchange, the company transitioned to the Standard Market.

Apr. 2022 : Due to a review of the market classification of the Tokyo Stock Exchange, we have moved to the Standard Market.

Due to a review of the market classification of the Tokyo Stock Exchange, we have moved to the Standard Market.