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| April 1950 | Company founder Shigeo Tokuno privately started business at Ta 241, Terai, Terai-machi, Nomi-gun, Ishikawa Prefecture, where he mainly performed bolt-related production |
| October 1955 | Factory moved to Ha 111, Terai, Terai-machi, Nomi-gun, Ishikawa Prefecture Started producing bearing components and chain components (mainly processing of plates) |
| July 1967 | Incorporated as Tokuno Manufacturing Co., Ltd. with a capital of 5 million yen |
| October 1967 | Established an integrated production line for conveyor chains, thereby shifting business to the production of conveyor chains |
| July 1977 | Increased capital to 10 million yen |
| May 1980 | Expanded business into the field of storage and transport equipment |
| June 1984 | Introduced in-house sheet metal processing equipment |
| March 1990 | Moved the factory completely to its current location (Nishi 2-1, Ao-machi, Nomi-shi, Ishikawa Prefecture) following the development of the Ao Industrial Park |
| February 1991 | Founder Shigeo Tokuno appointed as the Company Chairman, and Shinya Tokuno appointed as the Company President |
| October 1992 | Increased capital to 20 million yen |
| December 1995 | Built the Factory No.2 for welding and conveyor unit installation on the same premises Installed an automatic high-rise warehouse for the purpose of parts management |
| July 1999 | Started promotion to expand sales of conveyor chains |
| June 2000 | Introduced two CNC lathes for the purpose of small-lot production of a wide variety of conveyor chains and shorter lead times |
| October 2000 | Published the first edition of our conveyor chain product catalog |
| December 2004 | Accredited with ISO9001:2000 certification, and have continued being certified thereafter |
| June 2007 | Renewed company administration and production systems to improve back-office efficiency |
| November 2007 | Held a commemorative ceremony in honor of the 40th anniversary of company establishment |
| August 2008 | Built a conveyor chain assembly factory |
| March 2009 | Accredited with ISO14001:2004 certification, and have continued being certified thereafter |
| April 2010 | Implemented production improvement activities to enhance productivity |
| February 2011 | Shinya Tokuno appointed as the Company Chairman, and Nobuhiko Tokuno appointed as the Company President |
| June 2011 | Exhibited at 15th Mechanical Components & Materials Technology Expo (M-Tech) at Tokyo Big Sight |
| December 2011 | Introduced a 300-ton press |
| April 2012 | Created the company's first website |