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For the Inventor, By the Inventor

Kariya, Japan

Toyoda Machine Works, Ltd.


USPTO Granted Patents = 14

% Expired Patents = 7.1

Trademarks = 1

Forward Citations = 138

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26 inventors (with patents filed for the assignee):

goldMedal Shinichiro Nakajima (2 out of 18 patents)

silverMedal Makoto Nishiji (2 out of 9 patents)

bronzeMedal Hiroshi Suzuki (2 out of 7 patents)

4.  Kenzi Nomura (2 out of 3 patents)

5.  Manabu Hosokawa (2 out of 3 patents)

6.  Tohru Nakaso (2 out of 2 patents)

7.  Tatsuya Hikosaka (2 out of 2 patents)

8.  Atsuo Sakai (1 out of 18 patents)

9.  Yozo Yamashita (1 out of 3 patents)

10.  Yukio Wada (1 out of 1 patent)

11.  Yasufumi Nakamura (1 out of 1 patent)

12.  Akinao Minegishi (1 out of 1 patent)

13.  Hirofumi Okuda (1 out of 1 patent)

14.  Takahiro Yoshiyama (1 out of 1 patent)

15.  Nakajima Shinichiro (1 out of 1 patent)


14 patents:

1. 7152446 - Method of forming internal gear, and internal gear (2006-12-26),
2. 7104913 - Differential gear device for vehicle (2006-09-12),
3. 7086985 - Differential gear device for vehicle (2006-08-08),
4. 7012399 - Position detector correction method and electrically-powered steering apparatus (2006-03-14),
5. 6935981 - Two-speed torque-splitting interaxle transfer case (2005-08-30),
6. 6887179 - Planetary gear apparatus (2005-05-03),
7. 6865463 - Electrically-powered steering apparatus (2005-03-08),
8. 6796400 - Electric power steering mechanism control method and electric power steering mechanism (2004-09-28),
9. 4890306 - Tool holder for monitoring tool service time (1989-12-26),
10. 4504900 - Sequence instruction display system (1985-03-12),
11. 4185377 - Machine tool with an automatic tool exchanger (1980-01-29),
12. 4091526 - Machine tool with an automatic tool exchanger (1978-05-30),
13. 3998338 - Automatic tool changing apparatus (1976-12-21),
14. 3930302 - Machine tool with guard cover apparatus (1976-01-06),
Company Overview
Toyoda Machine Works, Ltd. is a prominent manufacturer specializing in precision machinery and equipment, primarily serving the automotive and industrial sectors. The company is known for its advanced technologies in machine tools, including CNC machining centers and grinding machines, which enhance manufacturing efficiency and precision. With a strong emphasis on innovation, Toyoda Machine Works contributes significantly to the development of cutting-edge solutions that support various manufacturing processes, particularly in Japan and globally.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 6 2026

14 Patents

#15 in Kariya

#3,577 in Japan

#42,199 in the World

Kariya, JP
Kariya, Japan

Toyoda Machine Works, Ltd.

Forward Citations = 138

26 inventors:

goldMedal Shinichiro Nakajima (2 out of 18 patents)

silverMedal Makoto Nishiji (2 out of 9 patents)

bronzeMedal Hiroshi Suzuki (2 out of 7 patents)

4.  Kenzi Nomura (2 out of 3 patents)

5.  Manabu Hosokawa (2 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Toyoda Machine Works, Ltd.. Retrieved from https://idiyas.com/company/toyoda-machine-works

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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