| Company name | Group | Parent | Subsidiary | Customer | Supplier | Alliance | Bank | Shareholder |
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| システムツーナインティ社 | ||||||||
| Kensō Enterprise Co., Ltd. | ||||||||
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April 1928: The first generation, Mr. Yoshiji Hayashi, started a nameplate manufacturing business in Sarugakucho, Hiroshima City
Founding
Founder Yoshiji Hayashi started the nameplate manufacturing business in Sarugaku-cho, Hiroshima City
Third generation Hayashi Mandai revived the business as Hiroshima Kensou
April 1964: The third generation, Mr. Manada Hayashi, revived the business as Hiroshima Research Innovation
Established Hiroshima Kensou Co., Ltd. (Capital 3 million yen, headquarters at 894 Nakayama-cho, Hiroshima City)
September 1971: Established Hiroshima Research Innovation Co., Ltd.
Moved headquarters to 859 Shirata, Tosaka-cho, Hiroshima City (currently 2-23 Tosaka Nakacho, Higashi-ku, Hiroshima City)
September 1972: Moved headquarters to 859 Shirata, Tosaka-cho, Hiroshima City
Renamed Hiroshima Kensou Co., Ltd. to Kensou Co., Ltd.
April 1979: Kogyo Research & Development Co., Ltd. changed its name to Kogyo Research & Development
Established first and second factories in Takayama-cho, Asakita-ku, Hiroshima City (currently 8-10-11 Fukagawa, Asakita-ku) and joined ISA (International Sign Association)
June 1979: Established the first and second factories in Takayama-cho, Ansa Kita-ku, Hiroshima City
Ultrasonic Cleaner Installation
May 1982: Ultrasonic Cleaner Installation
Opened a sales office in Tokyo
September 1982: Opened a sales office in Tokyo
Introduced laser processing equipment (industry first)
December 1982: Introduced laser processing equipment (industry first)
March 1984: Introduced V-Cut processing equipment
April 1984: Opened a sales office in Osaka
Moved headquarters to Takayama-cho, Asakita-ku, Hiroshima City and opened a sales office at the former headquarters location
October 1983: Moved headquarters to Takayama-cho, Ansa Kita-ku, Hiroshima City
Introduced V-cut processing machine
Opened a sales office in Osaka
Established new factory "Factoryland" in Asakita-ku, Hiroshima City (adjacent to the first and second factories and headquarters)
September 1986: Established the new factory "Factoryland" in Ansa Kita-ku, Hiroshima City
Entered a technology partnership with Kensou International Seoul (South Korea)
December 1986: Technical partnership with Kensou International Seoul (South Korea)
Implemented CIM system (computer-integrated manufacturing system)
April 1987: Implemented CIM system (computer-integrated manufacturing)
Implemented KEEP/CAD (original computer-aided design)
December 1987: Introduced KEEP/CAD (original computer design)
Joined the Canadian Sign Association
May 1990: Joined the Canadian Sign Association
Entered a sister partnership with Steel Art Co., Ltd. (Boston, USA)
July 1990: Sister partnership with Steel Art Co. (Boston, USA)
Joined the Australian Outdoor Advertising Association
August 1990: Joined the Australian Outdoor Advertising Association
Established a sales office in Nagoya
Listed as a retail registered brand
Became the sole distributor of System Ninety Inc. (Michigan, USA) in Japan
Moved headquarters and factory to the newly established "Research Innovation Factory Park" (Jōfukagawa-cho, Ansa Kita-ku)
Built an integrated cutting system by FMS
April 1991: Opened a sales office in Nagoya
November 1991: Listed as a publicly traded stock as a registered brand
Established subsidiary Kyenso Enterprise Co., Ltd.
June 1992: Became the exclusive distributor in Japan for System Tuning (Michigan, USA)
November 1992: Moved headquarters and factory to the newly established "Kensou Factory Park"
Moved the Hiroshima sales office into the Hiroshima headquarters
January 1993: Built an integrated cutting system with FMS
ISO9002 Certification Obtained
ISO9001 Certification Obtained
May 1995: Established affiliated company Kensou Enterprise Co., Ltd.
Listed on the JASDAQ Stock Exchange following an organizational change
January 1996: Moved the Hiroshima sales office to the Hiroshima headquarters
Launched original LED light source products
August 2006: Launched original LED light source products
Celebrated 100th anniversary of founding
February 1999: ISO9002 Certification Obtained
Listed shares on the Tokyo Stock Exchange JASDAQ (Standard) market following the integration of the physical markets of the Tokyo and Osaka Stock Exchanges
February 2003: ISO9001 Certification Obtained
Changed the number of shares per unit from 1,000 to 100
Established a sales office in Sendai
April 2014: Changed the number of shares per unit from 1,000 to 100
April 2014: Established a sales office in Sendai
July 2013: Following the integration of the physical markets of the Tokyo and Osaka Stock Exchanges, listed shares on the JASDAQ Market (Standard) of the Tokyo Stock Exchange
December 2004: Listed on the JASDAQ Securities Exchange
April 2008: Celebrated 100th anniversary of founding
Participated in the "Hiroshima Corporate Health Declaration"
March 2020: Participated in the "Hiroshima Corporate Health Declaration"
Listed on the "Standard Market" following the Tokyo Stock Exchange market reorganization
April 2022: Listed on the Standard Market following the reorganization of the Tokyo Stock Exchange markets
Kensou Co., Ltd. will participate in the Setouchi Factory View, which showcases manufacturing sites in the Setouchi area, and will hold factory tours and workshops. The factory tour is scheduled for November 13, 2026, and the workshop will take place at the headquarters factory on November 21, 2026, requiring prior registration.
Ken-Soh Co., Ltd. has posted the digital edition of ‘Sign Planning Catalog No. 52’ on its product information page. The catalog adds new products, project examples, and delivery records, including installations at public and welfare facilities.
Kensoh will exhibit LED units, its resin series, and many other products at booth 85 at SIGN & DISPLAY SHOW 2026. The event will be held at Tokyo Big Sight's Ariake GYM-EX from Wednesday, October 21, through Friday, October 23. Visitors are welcome.
KenSou Corporation will be closed for summer holidays from August 11 to August 16, 2026. We apologize for any inconvenience this may cause and appreciate your understanding.
Kenzo Corporation participated in SIGN EXPO 2026 held from June 10 to 12, 2026, showcasing mechanical whales and finishing panels.
Kensō Corporation will exhibit at SIGN EXPO 2026, held at Osaka Nanko ATC Hall from June 10 to 12, 2026, showcasing a wide range of products.
Kensou Corporation's Nagoya sales office will relocate to a new address on May 1, 2026.
Kensou Co., Ltd. exhibited at Sign & Display Show 2025, displaying items such as the sky‑hanging Kiri and a mechanized whale.
Kensou Co., Ltd. will exhibit at the exhibition held at Tokyo Big Sight in October 2025, showcasing a wide range of products.
The broadcast content of Hiroshima TV, where Kensou was introduced, has been uploaded to the official YouTube channel and is now available for viewing.