Philosophy and history｜Company information ｜ TPR Osaka Seimitsu Kikai Co., Ltd.

Company information

Corporate Philosophy

Customer Commitment

Follow the customer-first principle and contribute to society.
Excellence in Technology

Pursue technological excellence and precision without compromise.
Growth and Meta-thinking

Grow with passion and think with a broad, forward‑looking perspective.

Message from the president

: We deliver the world’s highest level of quality, leading to customer satisfaction and contributing to society.

At TPR Osaka Seimitsu Kikai, we provide a full range of measuring machines, measurement technologies, and quality assurance, all of which are essential for the precision machining and quality control of gears, a type of mechanical element that underpins a wide range of industries. We strive to satisfy customers; build strong relationships with business partners, employees, and all other stakeholders; and achieve sustainable growth. Amid major transformations including growing awareness of environmental issues, gears have become smaller and more precise in recent years, and the requirements and importance of quality assurance have grown. To meet these demands and contribute to society, we continue to develop new technologies and provide highly reliable products that also support the expansion of the digital transformation of business operations (DX), automation, and labor saving across various fields. Beyond supplying products, we’re enhancing our ability to respond to increasingly diverse needs by providing the technologies and services necessary to solve customers’ challenges. We sincerely appreciate and look forward to your continued support and business going forward.

President

History

- Company milestones
- - 1951
  - March
  - Founded in Ikuno-ku, Osaka City, as Osaka Seimitsu Kikai Manufacturing Factory.
- - 1957
  - June
  - Reorganized itself as a corporation.
- - 1960
  - November
  - Moved to a new plant in Mikuriya, Higashiosaka City, and started operations.
- - 1973
  - May
  - Embarked on a production rationalization initiative under guidance from the Osaka Science & Technology Center.
- - 1980
  - October
  - Established the Gear Measuring Center & Laboratory to support user measurement requests and engineering.
- - 1981
  - April
  - Received the Japan Society of Mechanical Engineers Technology Award for its GC-HP series electro-generative profile, lead, and pitch measuring machines.
- - 1982
  - September
  - Expanded our machining plant.
- - 2000
  - March
  - Earned ISO 9001 certification.
- - 2004
  - August
  - Established the Gear Measuring Center (GMC).
- - 2005
  - November
  - Engineer commended by the Minister of Health as Contemporary master craftsman.
- - 2006
  - February
  - Earned JAB ilac-MRA RCL00280 accreditation for gear measuring machines.
- - March
  - Received the Silver Prize in the 8th Higashiosaka Monozukuri Awards (Higashiosaka Chamber of Commerce and Industry).
- - August
  - Had its research and development plan certified by METI for research and development of high-precision gear measuring machines and integration into gear calibration systems.
- - December
  - Selected to receive the METI FY2006 SME subsidy.
- - 2007
  - April
  - Earned IA Japan ilac-MRA JCSS0190 accreditation for one-dimensional length measuring instruments (block gauges).
- - April
  - Again selected to receive the METI FY2006 SME subsidy to start JCSS calibration services.
- - July
  - Selected as one of “300 Vibrant Manufacturing SMEs 2007” and received a commendation from the Minister of Economy, Trade and Industry.
- - August
  - Selected for the FY2007 Strategic Foundation Technology Improvement Support Program for its research and development of high-precision gear measuring machines and integration into gear calibration systems.
- - 2008
  - March
  - Earned IA Japan ilac-MRA JCSS0190 accreditation for gears.
  - April
  - Selected for the FY2008 Strategic Foundation Technology Improvement Support Program for its research and development of high-precision gear measuring machines and integration into gear calibration systems.
- - 2011
  - July
  - Opened Shanghai Office.
- - 2012
  - October
  - Opened India Representative Office.
- - 2013
  - December
  - Established OSK Korea Co., Ltd., a local subsidiary in South Korea.
- - 2014
  - February
  - Established OSK Precision Machinery Pvt. Ltd., a local subsidiary in India.
- - 2014
  - March
  - Honored with an award as one of METI’s “Global Niche Top 100 Companies.”
- - 2017
  - December
  - Awarded the 51st Good Company Award Special Prize.
- - 2018
  - December
  - Tetsuya Taguchi assumes the position of president.
- - 2021
  - December
  - Became a subsidiary of TPR Co., Ltd.
- - 2022
  - June
  - The company name was changed to TPR Osaka Seimitsu Kikai Co., Ltd.
- 1950
- 1960
- 1970
- 1980
- 1990
- 2000
- 2010
- 2020
- Product milestones
- - 1951
  - Developed SPI universal gear tester.
- - 1957
  - Developed OP pitch measuring machine.
- - 1958
  - Developed GTR-4 small gear rolling tester.
- - 1961
  - Developed GC-1 sine bar–type gear profile measuring machine.
- - 1965
  - Developed AP-40 automatic pitch measuring machine.
- - 1966
  - Developed GC-4H base-circle adjustment–type profile and helix measuring machine.
- - 1969
  - Developed AMC-40 NC gear profile measuring machine.
- - 1970
  - Developed OFR-20 single-flank gear rolling tester.
- - 1971
  - Developed Automatic gear sorting system.
- - 1972
  - Received FY1972 technical improvement subsidy and developed computer-controlled automatic gear profile measuring machine.
- - 1976
  - Developed GC-12HP CNC profile and helix measuring machine.
- - 1977
  - Developed PCD-50 hob profile measuring machine.
- - 1978
  - Developed GC-6HP CNC profile and helix measuring machine.
- - Developed PAP-40 portable pitch measuring machine.
- - 1979
  - Developed GC-16HP CNC profile and helix measuring machine.
- - 1980
  - Developed GC-3HP CNC profile and helix measuring machine.
- - 1982
  - Developed GC-2HS CNC profile and helix measuring machine.
- - 1985
  - Developed GC-1HP small-gear NC profile, helix, and pitch measuring machine.
- - 1988
  - Developed FS-35 non-contact optical measuring machine using holographic interferometry.
- - 1989
  - Developed CLP-35 and CLP-65 CNC profile, helix, and pitch measuring machines.
- - 1990
  - Developed database gear grinding system (DBGS) and DBG-25B CNC gear grinding machine.
- - 1996
  - Developed HyB-35 hypoid gear measuring machine.
- - 1999
  - Developed CLP-85 CNC profile, helix, and pitch measuring machine.
- - 2000
  - Filed a patent application for CVT measurement.
- - Developed MGL-26 high-precision gear measuring machine.
- - 2004
  - Developed GTR-4LS scale-type small gear rolling tester.
- - Developed simulation software of tooth contact and transmission error in collaboration with Amtec Inc.
- - 2008
  - Developed CLP-35DDS direct-drive gear measuring machine.
- - 2010
  - Under the Strategic Foundation Technology Improvement Support Program, Developed the DAT-1 high-precision gear tester.
- - Developed CLP-120 CNC profile, helix, and pitch measuring machine for large gears.
- - Developed CLP-35S CNC profile, helix, and pitch measuring machine.
- - 2011
  - Adopted DAT-1 to serve as the calibration reference machine for the GMC.
- - 2013
  - Developed CLP-15S CNC profile, helix, and pitch measuring machine.
- - 2018
  - Developed CLP-85DDS direct-drive gear measuring machine.
- - 2021
  - Developed DSA detector mounted model 「type F」 for high-speed pitch measurement.
  - Developed Geometrical deviation measuring function using the CLP-35DDS.
- - 2022
  - Developed CLP-35DDSF direct-drive gear measuring machine.
- - Developed Gear tooth surface roughness measurement for involute gears.
- - Developed CLP-45DDS direct-drive gear measuring machine.
- - Developed RCLP-210 rack measuring machine.