About Us

History

One speed changer from a small factory brought about significant reform to the industry.

Who could have anticipated that a speed changer invented by one small factory with a few employees in 1954 would make such a great contribution to industrial development?
In an era when automation was the keyword of the day, a belt-type stepless speed changer released by Miki Seisakusho (currently Miki Pulley) accelerated technology innovation in Japan and played a huge role in the development of industry.
A few years later, the product name became the current company name.

October 1939 Ex-Chairman Yoshiharu Miki founded Miki Seisakusho in Omiya-cho, Kawasaki City, with the support of his father, Jiro (former Vice-Chairman of the House of Councilors).



Workers who made Miki Pulley stepless speed changers


New start as Miki Seisakusho


Sagami Factory was built in 1961


Negotiations with Lovejoy, Inc.


Formed partnership with Lenze AG


V FREQ commercialized for the first time in Japan


Ceremony for introducing new president


Chairman Yoshiharu Miki was awarded the Order of the Rising Sun, Gold and Silver Rays


Vice-Chairman Hitoshi Miki awarded the Medal with Yellow Ribbon


ETP Bushing and SERVOFLEX won the Good Design Award


Acquired ISO14001


SFC SA2/DA2 won the Monodzukuri Innovative Parts and Components Award in the category of machine parts


BXW won the Monodzukuri Innovative Parts and Components Award in the category of machine parts


New Sagami Technical Center building


Started sales and service of sintered products


Receiving the Order of the Rising Sun, Gold Rays with Rosette


STEPFLEX won the encouragement award of "CHO" Monodzukuri Innovative Parts and Components Award

October 1954 Acquired patent for the stepless speed changer and started production and sales under the name of Miki Pulley Stepless Speed Changer.
March 1957 Changed the company name to Miki Seisakusho Co., Ltd.
March 1961 Built Sagami Plant (currently Technical Center) and started production.
January 1964 Sagami Plant was designated as a medium and small-sized enterprise model factory.
October 1965 Developed an electrical stepless speed changer.
December 1965 Signed a technical and sales partnership agreement for stepless speed changers with Zero-Max in the U.S.
October 1966 Changed the company name to Miki Pulley Co., Ltd.
January 1968 Signed a technical and sales partnership agreement for shaft couplings with Lovejoy, Inc. in the U.S.
October 1969 Signed a technical and sales partnership agreement for stepless speed changers with Lenze GmbH & Co KG in Germany.
March 1971 Signed a technical and sales partnership agreement for electromagnetic clutches and brakes with Lenze GmbH & Co KG in Germany.
March 1971 Signed a technical and sales partnership agreement for torque tenders with Helland Research & Engineering Inc. in the U.S.
April 1972 Founded joint venture company Miki Simpla Co., Ltd. with Lenze GmbH & Co KG in Germany.
February 1973 Founded Miki Beltec Co., Ltd. in Yonezawa City, Yamagata Prefecture.
February 1973 Signed a technical and sales partnership agreement for shaft couplings with Baumann & Co., Ltd, in Switzerland.
June 1973 Founded joint venture company Miki Zero-Max Co., Ltd. with Zero-Max Inc. in the U.S.
November 1974 Signed a technical and sales partnership agreement for shaft couplings with Helical Inc. in the U.S.
December 1975 Signed a technical and sales partnership agreement for shaft couplings with CENTA Antriebe Kirschey GmbH in Germany.
March 1979 Signed a technical and sales partnership agreement for friction couplings with FFV in Sweden.
April 1980 President Yoshiharu Miki was awarded the Medal with Yellow Ribbon.
September 1980 Developed GTO inverter V FREQ and started sales to industrial customers.
July 1981 Founded CRA Co., Ltd.
September 1981 Harukazu Miki became the president of Miki Pulley.
September 1981 Founded Miki Power Electronics Co., Ltd. in Yonezawa City, Yamagata Prefecture.
July 1982 Signed a technical and sales partnership agreement for vibration dampers with ROSTA AG in Switzerland.
September 1982 Founded Y.M. Laboratory in Zama City, Kanagawa Prefecture.
December 1986 Built Technical Center in Sagami Plant.
May 1987 Vice-Chairman Hitoshi Miki was awarded the Medal with Yellow Ribbon.
November 1987 Power transmission couplings ETP Bush and Servoflex won the good design award in the category of industrial machinery in 1987. 
April 1988 Changed the name of Miki Power Electronics Co., Ltd. to Miki Power Control Co., Ltd.
August 1992 Completed new building of Zero-Max in the U.S.
September 1992 Acquired Zero-Max, Inc. and Helland Research & Engineering Inc. in the U.S. and merged both companies.
March 1994 Founded Miki Pulley (Hong Kong) in Hong Kong.
April 1995 Founded joint venture company Miki Ace (Tianjin) Co., Ltd. (currently Miki Pulley (Tianjin) Co., Ltd.) in Tianjin, China.
April 1996 Completed the construction of Miki Ace (Tianjin) Plant.
October 1996 Founded Miki R.A. Hanbai Co., Ltd. in Kawasaki City, Kanagawa Prefecture.
March 2000 Converted Miki Ace (Tianjin) to a wholly owned subsidiary.
November 2000 Acquired Tokyo Meter Co., Ltd., a manufacturer specializing in testing and inspection equipment.
May 2001 Changed the name of Miki Ace (Tianjin) Enterprise to Miki Pulley (Tianjin) Co., Ltd.
March 2002 Merged Miki Simpla Yonezawa Plant into Miki Power Control Yonezawa Plant.
February 2004 Acquired ISO14001 certification .
April 2004 Established Shanghai office.
December 2004 Founded Zero-Max A/S in Denmark.
March 2005 The SFC-SA2/DA2 Servo Couplings received the manufacturing parts award in the category of machinery parts.
December 2005 Renovated the headquarters building.
March 2006 Spring-actuated electromagnetic brake BXW model received the manufacturing parts award in the category of machinery parts.
October 2006 Acquired ISO9001: 2000  certification.
May 2007 Renovated the Sagami Technical Center building.
June 2007 Selected as one of the 300 Excellent Small and Medium Manufacturing Enterprises in 2007 by the Small and Medium Enterprises Agency.
October 2007 Founded a joint venture company with CENTA in Germany, CENTA MP Shanghai in Shanghai, China.
January 2008 Completed the construction of a new Osaka branch office building at 3-3-23 Tarumi-cho, Suita-shi, Osaka.
June 2008 Completed the construction of a new Nagoya branch office building at 2-10 Motoshiga-cho, Kita-ku, Nagoya.
March 2009 Electromagnetic clutch and brake BES model received the manufacturing parts award in the category of machinery parts.
June 2009 Started business of selling sintered products.
September 2011 Founded Miki Pulley (Korea) in Seoul, Korea.
January 2012 Founded a joint venture company with ROSTA in Switzerland, ROSTA MP Shanghai in Shanghai, China.
May 2012 President Harukazu Miki was awarded the Order of the Rising Sun, Gold Rays with Rosette.
October 2012 Energy-saving spring-actuated brake BXL-BS model won the encouragement award of "CHO" Monodzukuri Innovative Parts and Components Award.
November 2012 Founded Miki Pulley (India) in Mumbai, India.
October 2013 Merged Miki Pulley (Shanghai) into Miki Pulley (Tianjin) to form a Shanghai branch office of Miki Pulley (Tianjin) Co., Ltd.
October 2013 High damping performance coupling STEPFLEX won the encouragement award of "CHO" Monodzukuri Innovative Parts and Components Award.
October 2013 Founded Miki Pulley (Europe) in Switzerland.
October 2014 High damping performance coupling STEPFLEX won the the Good Design Award.
March 2015 Koji Miki became the president of Miki Pulley.