Apr. 1971

Toho Seiko CO., LTD. was established in Meguro-ku Tokyo by Hiroshi Teramachi.Sale of Link Balls, LM Rollers, LM Balls, and parts of machine tools started.

Apr. 1972

Sale of LM Guides and Ball Splines started.

Dec. 1972

Toho Seiko tookover Nisshin Seisakusho CO., LTD. (capital ¥5,000,000) and Toho Seiko's capital was increased to ¥45,000,000.

Mar. 1973

THK CO., LTD. was established by joint investment between Miyairi Valve Seisakusho Co., Ltd. and Toho Seiko Co., Ltd.

Apr. 1977

The production department of THK CO., LTD. was purchased by Toho Seiko and established as the Kofu plant.

Sep. 1979

Production and Sale of Ball Screws started.

Mar. 1981

THK America Inc. was established in Chicago, U.S.A.

Jul.  1982

Production and Sale of X-Y Stages.

Oct. 1982

Share denomination was changed (face value ¥500 per share changed to ¥50) and Toho Seiko CO., LTD. was merged by THK CO., LTD. (formal retaining company). Plants of Toho Seiko CO., LTD. continued manufacturing operation as THK's Nagoya and Osaka plants.

Oct. 1982

THK GmbH was established in Dusseldorf, Germany.

Jan. 1984

THK CO., LTD. acquired Daiko Seisakusho CO., LTD. and transformed facility of Daiko Seisakusho into the Gifu plant.

Apr. 1985

THK CO., LTD. merged Toyo Seiko Co.,Ltd and established as the Mie plant.

Apr. 1985

Yamaguchi plant was established.

Dec. 1985

Participated in capital investment in DAITO SEIKI CO., LTD. under an engineering cooperation agreement.

Jan. 1988

THK NIIGATA CO., LTD. was established by joint investment between THK CO., LTD. and Samon Kogyosho CO., LTD.

Apr. 1988

THK CO., LTD. merged with THK Distribution CO., LTD.

Jul.  1988

The third facility at the Yamaguchi plant was completed.

Jan. 1989

THK TAIWAN CO., LTD. was established in Taipei, Taiwan.

May. 1989

CINTIC - THK SERVICE CENTER was established in Beijing, China.

Nov. 1989

Registered on the Tokyo OTC market.

Apr. 1991

Participated in capital investment in Beldex Corporation.

Jun. 1991

The Yamagata plant was established.

Oct. 1991

Participated in capital investment in SAMICK LMS. CO., LTD. under an engineering cooperation agreement.

Aug. 1992

Acquired PGM Ballscrews Ltd. in Coventry, U.K. and PGM Ireland Ltd. in Dublin, Ireland.

May. 1993

The head office was moved to the present address.

May. 1993

THK Europe B.V. was established in Amsterdam, Netherlands.

May. 1994

Participated in capital invetment in TALK SYSTEM CORPORATION.

Mar. 1996

DALIAN THK CO., LTD. was established in Dalian, China.

Jul.  1996

Production and sale of second generation LM Guides started.

Aug. 1997

THK Manufacturing of America, Inc. was established in Hebron, Ohio.

Feb. 2000

THK Manufacturing of Europe S. A. S. was established in Ensisheim, France.

Jan. 2001

Production and sale of Caged Roller Guides started.

Feb. 2001

Listed on the First Section of Tokyo Stock Exchange.

Oct. 2002

THK France S. A. S. was established in Dardilly, France.

Aug. 2003

THK (SHANGHAI) CO., LTD. was established in Shanghai, China.

Mar. 2004

THK MANUFACTURING OF CHINA (WUXI) CO., LTD. was established in Wuxi, China.

Nov. 2004

THK CO., LTD. acquired DAITO SEIKI CO., LTD. as a wholly owned subsidiary, via a stock swap.

May. 2005

THK MANUFACTURING OF CHINA (LIAONING) CO., LTD. was established in Dalian, China.