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For the Inventor, By the Inventor

Tokyo, Japan

Topy Industries, Limited

USPTO Granted Patents = 11

% Expired Patents = 27.3



Forward Citations = 52

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30 inventors (with patents filed for the assignee):

goldMedal Shigeru Osawa (2 out of 58 patents)

silverMedal Katsumi Tashiro (2 out of 4 patents)

bronzeMedal Hirohumi Kikuchi (2 out of 4 patents)

4.  Akitsugu Ando (2 out of 4 patents)

5.  Koji Murakami (1 out of 20 patents)

6.  Masahiro Nakajima (1 out of 67 patents)

7.  Junya Uemura (1 out of 1 patent)

8.  Toru Shimizu (1 out of 13 patents)

9.  Tatsuya Oguri (1 out of 1 patent)

10.  Masafumi Maeda (1 out of 1 patent)

11.  Masayoshi Kaneko (1 out of 6 patents)

12.  Katsuki Ogawa (1 out of 13 patents)

13.  Masaki Shiraishi (1 out of 25 patents)

14.  Tadashi Imamura (1 out of 4 patents)

15.  Kenji Maki (1 out of 1 patent)


11 patents:

1. 9259963 - Method for coating aluminum wheel, and aluminum wheel (2016-02-16),
2. 7669623 - Elastic wheel and method of manufacturing the same (2010-03-02),
3. 7044179 - Elastic wheel (2006-05-16),
4. 6981535 - Elastic wheel (2006-01-03),
5. 5741355 - Pearlescent pigment, and paint composition, cosmetic material, ink and (1998-04-21),
6. 5561980 - Tandem master cylinder (1996-10-08),
7. 5452608 - Pressure and temperature monitoring vehicle tire probe with rim anchor (1995-09-26),
8. 5320674 - Ultraviolet ray screening agent (1994-06-14),
9. 5049207 - Heat treatment process for bushing used in track of endless track tractor (1991-09-17),
10. 4554961 - Wheel rim with split locking ring (1985-11-26),
11. 4530387 - Spider hub and a wheel rim assembly (1985-07-23),
Company Overview
Topy Industries, Limited is a prominent manufacturer based in Tokyo, specializing in the production of high-quality steel products and advanced materials. The company focuses on various sectors, including automotive, construction, and industrial applications, leveraging its expertise in metallurgy and engineering. Topy is recognized for its commitment to innovation, developing cutting-edge technologies that enhance product performance and sustainability. Its strategic presence in Japan positions it as a key player in the global market for steel and related materials.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

11 Patents

#1,808 in Tokyo

#4,139 in Japan

#51,801 in the World

Tokyo, JP
Tokyo, Japan

Topy Industries, Limited

Forward Citations = 52

30 inventors:

goldMedal Shigeru Osawa (2 out of 58 patents)

silverMedal Katsumi Tashiro (2 out of 4 patents)

bronzeMedal Hirohumi Kikuchi (2 out of 4 patents)

4.  Akitsugu Ando (2 out of 4 patents)

5.  Koji Murakami (1 out of 20 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Topy Industries, Limited. Retrieved from https://idiyas.com/company/topy-industries

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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