Company Overview
- Company name
- T.Kato Co., Ltd.
- Main office
- 4-1-1 Iidabashi, Chiyoda-ku, Tokyo
102-0072
PHONE: 81-3-6280-8185 FAX: 81-3-6280-8184 - Branch office
- 527 Waseda Tsurumakicho, Shinjuku-ku, Tokyo
162-0041 - Research center
- K Building, 1129-16 Takahagi, Hidaka-shi, Saitama
350-1213 - URL
- https://www.t-kato.co.jp
- Founded
- December 1988
- Capital stock
- 15 million yen
- Representative Director
- Toshiyuki Kato
- Banks
- Mizuho Bank: Edogawabashi branch
Saitama Resona Bank: Hanno branch
Hanno Shinkin Bank: Hidaka branch - Business details
- Development, manufacturing and
sales of construction materials
(Hidaka City)
Overseas patents (partial)
Domestic patents (partial)
Company History
- April1950
- Esuke Katoh founded the Katoh Hardware Company
- December1988
- Established from Developmental Department of Katoh Hardware Company
- December1994
- Patent filed for “Deck Connector”
- December1997
- Patent filed for the earthquake-resistant washer, Tightnik, “Washer for Seismic Prevention and Earthquake Prevention Device Which Uses It”
- June1998
- Overseas patent filed for the earthquake-resistant washer, Tightnik
(USA, China, Hong Kong, Taiwan, Korea) - August
- The earthquake-resistant washer, Tightnik, launched
- September
- Overseas patent filed for the earthquake-resistant washer, Tightnik (EU)
- October
- Overseas patent filed for the earthquake-resistant washer, Tightnik (Canada)
- May1999
- Patent acquired for the earthquake-resistant washer, Tightnik, "Washer for Seismic Prevention and Earthquake Prevention Device Which Uses It"
- August2000
- Patent acquired for the earthquake-resistant washer, Tightnik in Taiwan
- June2001
- Patent acquired for the earthquake-resistant washer, Tightnik in USA
- March2002
- Patent filed for "Strut for floor structure"
- August
- Patent acquired for the earthquake-resistant washer, Tightnik in Korea
- April2003
- Tightnik is adopted for the Tokorozawa Gym
- July
- Patent filed for Hozoc "Wood Coupling"
- Patent acquired for the earthquake-resistant washer, Tightnik in China
- April2004
- Patent filed for Relevel, "Variable Spacer"
- Patent acquired for the earthquake-resistant washer, Tightnik in Hong Kong
- October
- Patent acquired for "Deck Connector"
- November
- Patent acquired for the earthquake-resistant washer, Tightnik in EU
(Germany, France, Italy, Netherlands, Norway) - January2005
- Foundation washer, Relevel, has been launched
- April
- Main Division moved to Nerima Ward
- April2006
- Patent filed for Skilits, "Clamping Device for Beam Parts"
- August
- Patent acquired for the earthquake-resistant washer, Tightnik, in Canada
- February2007
- Gripper has been launched
- April
- Patent acquired for "Strut for floor structure"
- May
- Patent filed for TGC "seismic isolation device"
- September
- Patent filed for Apple Pin APS "Hozo Rod & Hozo Joint"
- January2008
- Skilits has been launched
- May
- Patent acquired for Hozoc, "Wood Coupling"
- August
- Patent acquired for Relevel "Variable Spacer" patent acquired
- February2009
- Overseas patent filed for Apple Pin (USA, EU, China, Hong Kong)
- April
- Patent filed for Apple Post, Smart Post
- November2011
- Main Division moved to Shinjuku Ward
- December
- Patent acquired for Skelits
- April2012
- Patent acquired for TGC "seismic isolation device"
- May
- Patent acquired for Apple Pin APS, "Hozo Rod & Hozo Joint"
- July
- Control of APS division transferred to Apple Pin Systems
- September
- Patent acquired for APS "Hozo Rod & Hozo Joint" In EU (Sweden, Germany, Italy)
- October
- Overseas patent acquired for APS "Hozo Rod & Hozo Joint" (China)
- July2013
- Overseas patent acquired for APS "Hozo Rod & Hozo Joint" (Hong Kong)
- December
- Main Division moved to Chiyoda Ward
- Patent acquired for "Apple Post Steel Bundle"
- June2014
- Patent acquired for Smart post, "Steel Bundle"
- December
- Patent filed for T.balance
- Overseas patent filed for T.balance (EU, USA, China)
- January2015
- Overseas patent filed for T.balance (Taiwan)
- August
- T.balance launched
- November
- Patent filed for T.balance
- December
- Overseas patent filed for T.balance (Europe)
- June2016
- Overseas patent filed for T.balance (Korea, Australia)
- January2017
- Patent acquired for Tightnik-related "Binding Washer Device"
- February
- Overseas patent acquired for T.balance (Australia)
- March
- Patent filed for Skit
- April
- Patent acquired for T.balance/Gripper
- August
- Overseas patent acquired for T.balance (South Korea)
- September
- Certificate of trademark registration acquired for/T.balance
- November
- Overseas patent acquired for T.balance (Taiwan)
- May2018
- Patent filed for Youlens
- Overseas patent acquired for T.balance (USA)
- June
- Patent filed for Branner
- October
- Overseas patent acquired for T.balance (Europe)
- November
- Overseas patent acquired for T.balance (China)
- June2019
- Patent acquired for Branner
- July
- Patent filed for Youlens (tension adjustment type)
- August
- Patent acquired for Youlens
- December
- Main Division moved within Chiyoda Ward
- May2021
- Patent acquired for Youlens (tension adjustment type)
at the time of establishment
