Japanese

Company Overview

Company name T.Kato
Main office 102-0072 Tokyo-to, Chiyoda-ku,
Iidabashi 4-10-1
TEL.03-6280-8185 FAX.03-6280-8184
Branch office 162-0041 Tokyo-to, Shinjuku-ku,
Waseda Tsurumaki 527
Research center 350-1213 Saitama Prefecture, Hidaka-shi,
Takahagi 1129-16 Building
Logistics center 350-1333 Saitama Prefecture, Sayama-shi,
Kamiokutomi 387-1
Founded December 1988
Capital stock 15 million yen
Representative
Director
Toshiyuki Kato
Reference bank Saitana Resona Bank: Hanno branch
Mizuho Bank: Edogawabashi branch 
Hanno Shinkin Bank: Hidaka branch
Business details Development, manufacturing and
sales of construction parts
T.Kato Research center/Showroom

T.Kato Research center/Showroom

Overseas patent (partially)

Overseas patent

Domestic patent (partially)

Overseas patent

Company history

April 1950 Esuke Katoh founds the Katoh Hardware Company
December 1988 Established from developmental department
December 1994 ”Deck Connector” patent filed
December 1997 Earthquake-resistant washer Tightnik "Washer for Seismic Prevention and Earthquake Prevention Device Which Uses It" patent filed
June 1998 Earthquake-resistant washer Tightnik overseas patent filed (USA, China, Hong Kong, Taiwan, Korea)
August Earthquake-resistant washer Tightnik launched
September Earthquake-resistant washer Tightnik overseas patent filed(EU)
October Earthquake-resistant washer Tightnik overseas patent filed(Canada)
May 1999 Earthquake-resistant washer Tightnik "Washer for Seismic Prevention and Earthquake Prevention Device Which Uses It" patent acquired
August 2000 Earthquake-resistant washer Tightnik Taiwan patent acquired
June 2001 Earthquake-resistant washer Tightnik USA patent acquired
March 2002 "Strut for floor structure" patent filed
August Earthquake-resistant washer Tightnik Korea patent acquired
April 2003 Tightnik is used at Tokorozawa Gym
July Hozoc "Wood Coupling" patent filed
       Earthquake-resistant washer Tightnik China patent acquired
April 2004 Relevel "Variable Spacer" patent filed
        Earthquake-resistant washer Tightnik Hong Kong patent acquired
October ”Deck Connector” patent acquired
November Earthquake-resistant washer Tightnik EU patent acquired
         (Germany, France, Italy, Netherlands, Norway)
January 2005 Foundation washer relevel launched
April Main division moves to Nerima
April 2006 Skilits "Clamping Device for Beam Parts" patent filed
August Earthquake-resistant washer Tightnik Canada patent filed
February 2007 Gripper launched
April "Strut for floor structure" patent acquired
May TGC "TGC "seismic isolation device" filed
September Apple Pin APS "Hozo Rod & Hozo Joint" patent filed
January 2008 Skilits launches
May Hozoc "Wood Coupling" patent obtained
August Re-level "Variable Spacer" patent obtained
February 2009 Apple Pin overseas patent filed (USA, EU, China)
April Apple Post, Smart Post patents filed
November 2011 Main Division moved to Shinjuku
December Skelits patent acquired
April 2012 TGC "seismic isolation device" patent acquired
May Apple Pin APS "Hozo Rod & Hozo Joint" patent acquired
July Control of APS division tranferred to Apple Pin Systems
September APS "Hozo Rod & Hozo Joint"
        EU patent acquired (Sweden, Germany, Italy)
October APS "Hozo Rod & Hozo Joint"" overseas patent acquired (China)
December 2013 Main Division moved to Chiyoda
      "Apple Post Steel Bundle" patent acquired
June 2014 Smart post "Steel Bundle" patent acquired
December T・balance patent filed
T・balance overseas patent filed(EU・USA・China)