1902

Started Yamashita Ground Metal Shop at Kinryo-cho, Sakai, Osaka, Japan

1924

Changed trade name to Yamashita Manufacturing Company Products manufactured were farming machinery and equipment

1944

Factory burnd and destroyed due to air raid during WW II

1947

Rebuilt the factory, and resumed production Products manufactured were bicycle components

1960

Started to manufacture ratchet gears for beach chair

1961

Founded "Koyo Nukimono Company" and Mr. Giichi Yamashita became President

1971

Mr. Yoshinobu Yamashita became President after Mr. Giichi Yamashita

1973

Changed trade name to Koyo Giken Co., Ltd.
Built four story building as new head quater closed to factory

1974

Started new ratchet gear production for floor chairs and wooden seats

1980

Established Koyo Engineering Co., Ltd. at Kusabe, Sakai, Osaka, Japan for international operations

1987

Expanded head factory at Kusabe, and became head office of Koyo Giken

1988

Started exporting to Asia

1992

Awarded the distinguished invention award by Osaka Governor, Japan

1995

Started exporting to Europe

1997

Increased the capital doubled for Koyo Giken and Koyo Engineering Co., Ltd.

1999

Started to produce Legman (patented): Height adjustable table leg system

2000

Started exporting to North America

2001

Legman awarded Interzum Prize in Cologne, Germany

2002

ISO9001:2000 Certified

2002

Awarded an excellent declarer by the Sakai Tax Head Officer, Japan

2003

MASANOBU YAMASHITA SUCCEEDED YOSHINOBU YAMASHITA AS CEO FACTORY AT KUSABE EXPANDED AND RENOVATED

2003

Celebrated Koyo's 100th Anniversary at Swiss Hotel Nankai Osaka and thanked customers

2004

Expaned and renovated new heard quater builind

2005

Fine gear (14 steps gear) started production and sales

2005

Tokyo sales office opened

2006

China factory and sales office opened

2007

Built a new warehouse

2008

Established Dongguan Koyo Trading Co., Ltd. and started local sales

2009

IS/LS gear (For Wooden Frame Sofa ) started production and sales

2013

Micro-Pitch gear and Free-Lock gear started production and sales

2013

Establishied KOYO Germany GmbH and started local sales
PAGE TOP