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| エヌケイ精工株式会社 | ||||||||
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| High Frequency Casting Co., Ltd. | ||||||||
| Makka Fa Shōbō (Shanghai) Co., Ltd. | ||||||||
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November 1934 – Invention of the 'High-Frequency Electric Shock Refining Method' (inventor: Hideyuki Kikuchi).
Invention of the 'High Frequency Electric Shock Refining Method' (inventor: Hideyuki Kikuchi).
January 1936 – Establishment of Japan High-Frequency Heavy Industries Co., Ltd. with capital of 10 million yen.
Establishment of Japan High Frequency Heavy Industries Co., Ltd. with capital of 10 million yen.
January 9, 1936, establishment of Nihon Kōshūhō Heavy Industries Co., Ltd. with capital of 10 million yen; completion of the Kita‑Shinagawa plant.
Establishment of Nippon High-Frequency Heavy Industries Co., Ltd. with capital of 10 million yen: Kitashinagawa Plant completed.
September 1936 – Completion of the Kitashinagawa plant.
Completion of Kitashinagawa Plant.
January–December 1937 – Numerous visits by Crown Prince Akishino and other members of the imperial family to the Kitashinagawa plant.
Until December: Numerous visits by Prince Chichibu and other princes to Kitashinagawa Plant.
January–December 1937, completion of the Jōzu plant and the Toyama plant. The Crown Prince visited the Kita‑Shinagawa plant on multiple occasions.
Jōzu Plant completed.
August 1937 – Completion of the Jōzu plant.
Completion of Jōzu Plant.
October 1937 – Completion of the Toyama plant.
Completion of Toyama Plant.
Toyama Plant completed.
November 1940 – Capital increase to 50 million yen.
Capital increased to 50 million yen.
May 1950 – Inherited domestic assets of Japan High-Frequency Heavy Industries Co., Ltd. and established new Japan High-Frequency Steel Co., Ltd. with capital of 35 million yen.
May 1950, succession of the domestic assets of Nihon Kōshūhō Heavy Industries Co., Ltd. and establishment of Nihon Kōshūhō Steel Co., Ltd. with capital of 35 million yen.
Inherited domestic assets of Japan High Frequency Heavy Industries Co., Ltd. and established Japan High Frequency Steel Co., Ltd. with capital of 35 million yen.
Inherited domestic assets of Nippon High-Frequency Heavy Industries Co., Ltd. and established new Nippon High-Frequency Steel Co., Ltd. with capital of 35 million yen.
May 1951 – Opening of the Hachinohe plant.
Opening of Hachinohe Plant.
May 11, 1951, opening of the Yahata plant. Capital increased to 150 million yen.
Hachinohe Plant opened: capital increased to 150 million yen.
November 1951 – Capital increase to 150 million yen.
Capital increased to 150 million yen.
February 1952 – Listed on the Tokyo Stock Exchange and Osaka Securities Exchange.
Listed on the Tokyo Stock Exchange and Osaka Securities Exchange.
February 1953 – Capital increase to 500 million yen.
Capital increased to 500 million yen.
July 1955, Kobe Steel, Ltd. invested capital in the company.
Kobe Steel Co., Ltd. invested capital in our company.
August 1961, capital increased to 1 billion yen.
Capital increased to 1 billion yen.
August 1967, commenced the first medium-term rationalization project.
Commenced the first medium-term rationalization project.
September 1973, commenced the second medium-term rationalization project.
Commenced the second medium-term rationalization project.
December 1974, capital increased to 2 billion yen.
Capital increased to 2 billion yen.
October 1975, added a 2,500-ton hydraulic press at the Toyama plant.
Toyama Plant: Added 2,500-ton hydraulic press.
January 1977, certified by Lloyd's Register.
January 1977, Lloyd's Register certification.
Certified by Lloyd's Register of Shipping.
March 1978, completion of the vacuum induction melting furnace at the Toyama plant.
Toyama Plant: Completion of Vacuum Induction Melting Furnace Plant
On March 6, 1978, the vacuum induction melting furnace at the Toyama plant was completed. The Management Rationalization Plan Promotion Project was established.
Toyama Plant: Completion of vacuum induction melting furnace plant; establishment of management rationalization plan promotion project.
January 1980, Toyama plant certified by the Japan Maritime Association.
Toyama Plant: Certified by the Japan Maritime Association
On January 4, 1980, the Toyama plant was certified by the Japan Maritime Association and the Norwegian Classification Society.
Toyama Plant: Certified plant by Japan Maritime Association; Toyama Plant certified by Norwegian Classification Society.
April 1980, Toyama plant certified by the Norwegian Classification Society.
Toyama Plant: Certified by the Norwegian Classification Society
May 1981, the Hachinohe plant was spun off to form High-Frequency Casting Co., Ltd., a specialty in castings.
Separated from the Hachinohe Plant to establish High-Frequency Casting Co., Ltd., specializing in castings
On May 9, 1981, the Hachinohe plant was separated and established as High‑Frequency Casting Co., Ltd., a specialty in castings. A 20 kVA vacuum induction melting furnace was installed at the Toyama plant.
Separated Hachinohe Plant and established High-Frequency Casting Co., Ltd. as a specialty casting company; Toyama Plant: installed 20KVA vacuum induction melting furnace.
September 1981, installed a 20 KVA vacuum induction melting furnace at the Toyama plant.
Toyama Plant: Installation of 20KVA Vacuum Induction Melting Furnace
August 1982, capital increased to 3 billion yen.
Capital increased to 3 billion yen
September 1983, completion of the block mill for wire rod finishing by West German Koxx at the Toyama factory.
Toyama Manufacturing: Completion of West German Cox's wire finishing block mill construction
On September 12, 1983, the construction of the West German Cocks Co. wire‑finishing block mill at the Toyama manufacturing plant was completed.
February 1984, began selling NK rings.
NK Ring sales commenced
February 1985, Kitashinagawa plant received Toyota Motor Corporation's Cost Improvement Excellence Award.
Kita-Shinagawa Plant: Awarded Toyota Motor Corporation's Cost Improvement Excellence Award
On February 10, 1985, the Kitashinagawa plant received Toyota Motor Corporation's Cost‑Improvement Activity "Cost‑Improvement Excellence Award". High‑Frequency Casting Co., Ltd. began manufacturing and selling the gate‑packer casting breaker.
Kitashinagawa Plant received Toyota Motor Corporation's Cost Improvement Excellence Award; High-Frequency Casting Co., Ltd. commenced manufacturing and sales of gate pecker casting breaker.
October 1985, High-Frequency Casting Co., Ltd. began manufacturing and selling the Gate Packer casting breaker.
High-Frequency Casting Co., Ltd.: Commenced manufacturing and sales of Gate Packer casting breaker
June 1986, the Kitashinagawa plant was fully relocated to Ichikawa.
Kita-Shinagawa Plant fully relocated to Ichikawa
April 1988, High-Frequency Casting Co., Ltd. introduced lost foam process equipment.
In April 1988, High‑Frequency Casting Co., Ltd. introduced lost‑form process equipment.
High-Frequency Casting Co., Ltd.: Introduced lost foam process equipment
April 1989, installed a 3-ton induction furnace and 3-ton & 1-ton ESR at the Toyama factory.
Toyama Manufacturing: Installed 3t induction furnace and 3t & 1t ESR
On April 6, 1989, a 3‑t induction furnace and a 3‑t & 1‑t ESR were installed at the Toyama manufacturing plant. Capital was increased to 8 billion yen.
Toyama Manufacturing Plant: installed 3t induction furnace and 3t & 1t ESR; High-Frequency Casting Co., Ltd. introduced AIM casting equipment; capital increased to 8 billion yen.
June 1989, High-frequency Casting Inc. introduced AIM casting equipment.
High-Frequency Casting Co., Ltd.: Introduced AIM casting equipment
November 1989, capital increased to 8 billion yen.
Capital increased to 8 billion yen
January 1990, capital increased to 8.8 billion yen.
Capital increased to 8.8 billion yen
On January 3, 1990, capital was increased to 8.8 billion yen. A 1,500‑t high‑speed hydraulic press was installed at the Toyama manufacturing plant, and the fully automated new steel wire plant began operation. FMS started operation at the Ichikawa plant.
Capital increased to 8.8 billion yen.
Fujiyama Manufacturing Plant: 1500t high-speed hydraulic press installed; fully automated new steel wire plant at Fujiyama Manufacturing Plant started operation; FMS operating at Ichikawa Factory.
March 1990, installed a 1500t high-speed hydraulic press at the Toyama plant.
Toyama Manufacturing: Installed 1500t high-speed hydraulic press
July 1990, the Toyama plant's fully automated new steel line factory began operation.
Toyama Manufacturing: New steel wire plant fully automated and commenced operation
October 1990, the Ichikawa plant began FMS operation.
Ichikawa Plant: FMS operational
December 1991, the Toyama plant completed the High-frequency Community Center.
In December 1991, the High‑Frequency Community Center was completed at the Toyama manufacturing plant.
Toyama Manufacturing: High-frequency community center completed
February 1992, established the trading company K.A. Metal Service Inc. through joint investment with Asai Industry Inc.
Established Kei A Metal Service Co., Ltd., a trading company, through a joint investment with Asai Sangyo Co., Ltd.
March 1994, capital increased to 10 billion yen.
Capital increased to 10 billion yen.
May 1996, capital increased to 13.5 billion yen.
Capital increased to 13.5 billion yen.
October 1998, the Ichikawa plant completed the precision press trial center.
In October 1998, the precision press test center was completed at the Ichikawa plant.
Completion of the precision press trial center at the Ichikawa plant.
January 1999, installed flat rolling equipment at the Toyama plant.
In January 1999, flat‑plate rolling equipment was installed at the Toyama manufacturing plant.
Installation of flat rolling equipment at the Toyama plant.
April 2000, capital increased to 15.7 billion yen.
Capital increased to 15.7 billion yen.
On May 6, 2001, Kamus Co., Ltd. was established through the merger of K.A. Metal Service Co., Ltd. and Yamato Metal Co., Ltd. Simultaneously, the Ichikawa plant was separated and launched as High‑Frequency Precision Co., Ltd., specializing in mold and tool manufacturing and sales.
Kei A Metal Service Co., Ltd. and Daiwa Metal Co., Ltd. merged to establish Kams Co., Ltd.; Ichikawa Factory was separated and launched as High Frequency Precision Co., Ltd., specializing in mold and tool manufacturing and sales.
June 2001, spun off the Ichikawa plant to establish High-frequency Precision Inc., specializing in mold and tool manufacturing and sales.
Separated the Ichikawa plant and established High Frequency Precision Co., Ltd., specializing in mold and tool manufacturing and sales.
July 2001, established Kams Inc. through the merger of K.A. Metal Service Inc. and Yamato Metal Inc.
Established Kams Co., Ltd. through the merger of Kei A Metal Service Co., Ltd. and Yamato Metal Co., Ltd.
September 2003, upgraded the Toyama plant's 2500t press to a 3000t press.
Upgraded the 2500t press to a 3000t press at the Toyama plant.
On September 12, 2003, the 2,500‑t press at the Toyama manufacturing plant was upgraded to a 3,000‑t press, and a 600‑t press was newly installed.
Fujiyama Manufacturing Plant: 2500t press upgraded to 3000t press; new 600t press established at Fujiyama Manufacturing Plant.
December 2003, established a 600t press at the Toyama plant.
New 600t press established at the Toyama plant.
January 2005, introduced a simulated heat treatment furnace for R&D at the Toyama plant.
In January 2005, a simulated heat‑treatment furnace for research and development was introduced at the Toyama manufacturing plant.
Introduced a simulated heat treatment furnace for research and development at the Toyama plant.
January 2006, upgraded the Toyama plant's 600t press to a 1000t press.
In January 2006, the 600‑t press at the Toyama manufacturing plant was upgraded to a 1,000‑t press.
Upgraded the 600t press to a 1000t press at the Toyama plant.
October 2006, obtained ISO 14001.
Obtained ISO 14001 certification.
August 2008, completion of the surface treatment plant at Kams Central Technology Center Co., Ltd.
Completion of the surface treatment plant at Kams Central Technology Center.
December 2009, upgrade of the block heating furnace at the Toyama plant from rotary to batch type.
In December 2009, the Toyama manufacturing plant's block‑heating furnace was updated from a rotary to a batch system.
Updated the block heating furnace at the Toyama plant from rotary to batch type.
October 2011, establishment of Maika Trading (Shanghai) Co., Ltd. in Shanghai, China.
Established Maika Hatsu Trading (Shanghai) Co., Ltd. in Shanghai, China.
On October 11, 2011, Maika Hatsu Trading (Shanghai) Co., Ltd. was established in Shanghai, China. A large‑size machining lathe was introduced at the Toyama manufacturing plant, and the K‑2 furnace was extended.
Established Maika Hatsu Trading (Shanghai) Co., Ltd. in Shanghai, China; Fujiyama Manufacturing Plant: introduction of large machine lathe for machining and extension of K2 furnace.
November 2011, introduction of a large machining lathe at the Toyama plant and extension of Furnace K2.
Introduced a large machine lathe for machining and extended K2 furnace at the Toyama plant.
June 2013, new construction of the Steel Wire East Finishing Drawing Plant at the Toyama plant.
New construction of the steel wire East finishing drawing plant at the Toyama plant.
On June 11, 2013, a new steel wire finishing and drawing plant was built at the Toyama manufacturing plant, and a second special melting plant (VAR) was constructed.
Fujiyama Manufacturing Plant: new steel wire East finishing drawing plant built; new Special Dissolution Plant 2 (VAR) built at Fujiyama Manufacturing Plant.
November 2013, new construction of the Special Melting Plant 2 (VAR) at the Toyama plant.
New construction of the special dissolution second plant (VAR) at the Toyama plant.
January 2014, completion of the KDM molding line (new die casting equipment) at Kōshūhō Casting Co., Ltd.
In January 2014, High‑Frequency Casting Co., Ltd. completed the KDM molding line (new mold‑forming equipment).
Completion of the KDM molding line (new die casting equipment) at High Frequency Casting Co., Ltd.
October 2017, completion of the 3000t hydraulic manipulator enlargement project at the Toyama plant.
In October 2017, the 3,000‑t hydraulic manipulator enlargement project at the Toyama manufacturing plant was completed.
Toyama Manufacturing Plant: Completion of large-scale 3000t hydraulic manipulator construction.
April 2018, completion of the FCMX molding line (new die casting equipment) at Kōshūhō Casting Co., Ltd.
April 2018: Completion of the FCMX molding line (live mold molding equipment) at High Frequency Casting Co., Ltd.
High-Frequency Casting Co., Ltd.: Completion of FCMX molding line (live mold molding equipment).
December 2019, completion of the energy‑saving retrofit of the forging furnace.
Completion of energy-saving retrofit of forging furnace.
May 2020, completion of the block mill renovation and upgrade.
Completion of mill section modification and update.
June 2023, transfer of the mold tooling business of Kōshūhō Precision Co., Ltd. to Kams Co., Ltd.
High-Frequency Precision Co., Ltd.'s mold tooling business transferred to Camus Co., Ltd.
April 2024, absorption merger of Kōshūhō Precision Co., Ltd. by Nihon Kōshūhō Steel Co., Ltd.
High-Frequency Precision Co., Ltd. absorbed and merged by Nippon High-Frequency Steel Co., Ltd.
January 2026, delisting of the company from the stock exchange.
Delisting of stock.
February 2026, transfer of Kōshūhō Casting Co., Ltd. to Kobe Steel Co., Ltd., becoming a wholly‑owned subsidiary of Daito Special Steel Co., Ltd.
High-Frequency Casting Co., Ltd. transferred to Kobe Steel Co., Ltd.
Becomes a wholly-owned subsidiary of Daito Special Steel Co., Ltd.
On April 18, 2024, the company announced that it had made changes to some of its director candidates, with Mr. Mitsue Takashi stepping down and Mr. Ikeda Jiro becoming a new candidate.
Hisaoto Murakoshi is scheduled to be appointed as an auditor from a senior managing executive officer, and Kiyohisa Kotani has been newly appointed as an executive officer.
Japan High-Frequency Steel Industry Co., Ltd. has contributed a donation of 5 million yen to support victims of the Noto Peninsula Earthquake in Reiwa 6, and continues to provide supplies and support activities.
All employees at Toyama Manufacturing Plant have been confirmed safe, and there has been no major damage to the equipment. Production is scheduled to continue as planned.
Japan High Frequency Steel Industry Co., Ltd. will cease email transmission of password-encrypted files from September 10, 2023, to enhance security.
High Frequency Precision has split its rights and obligations into a company division to adapt to changes in the automotive industry.
The subsidiary High Frequency Precision announced that it will restructure its automotive mold business and initiate the land sale process.
Based on the meeting held on March 6, 2023, it was announced that there were changes in the representative director and executive personnel.
Japan High-Frequency Steel Industry Co., Ltd. will suspend services for system maintenance on January 11, 2023.
At the board meeting on May 23, 2022, it was decided to propose a partial amendment to the articles of incorporation regarding the introduction of electronic provision measures for the 97th Annual General Meeting scheduled for June 28, 2022.