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For the Inventor, By the Inventor

Tokyo, Japan

Caterpillar Japan Ltd.


USPTO Granted Patents = 17

% Expired Patents = 64.7


Forward Citations = 136

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39 inventors (with patents filed for the assignee):

goldMedal Satoshi Fujii (5 out of 40 patents)

silverMedal Isao Murota (4 out of 11 patents)

bronzeMedal Hideo Yamada (3 out of 24 patents)

4.  Eiji Akahane (3 out of 13 patents)

5.  Teruyuki Yamada (3 out of 5 patents)

6.  Yusuke Harayama (3 out of 5 patents)

7.  Shoji Tozawa (3 out of 29 patents)

8.  Tomoaki Ono (3 out of 12 patents)

9.  Madoka Binnaka (3 out of 3 patents)

10.  Hideto Furuta (3 out of 14 patents)

11.  Tomoya Hirano (2 out of 3 patents)

12.  Takayuki Yuasa (2 out of 2 patents)

13.  Kazushige Tasaki (2 out of 4 patents)

14.  Masayoshi Nakajima (2 out of 3 patents)

15.  Gantcho Lubenov Vatchkov (2 out of 3 patents)


17 patents:

1. 8539762 - Hydraulic control circuit for construction machine (2013-09-24),
2. 8403377 - Cab front window locking device (2013-03-26),
3. 8361939 - Multilayered sintered sliding member (2013-01-29),
4. 8267467 - Reinforcement for cab in construction machine (2012-09-18),
5. 8186131 - Door panel (2012-05-29),
6. 8029044 - Cab structure of construction equipment (2011-10-04),
7. 7891285 - Bearing restricting device in swash plate hydraulic pump or motor (2011-02-22),
8. 7832208 - Process for electro-hydraulic circuits and systems involving excavator boom-swing power management (2010-11-16),
9. 7664715 - Apparatus and method for compressing data, apparatus and method for analyzing data, and data management system (2010-02-16),
10. 7626491 - Indicator control system for constrution machine (2009-12-01),
11. 7621211 - Force feedback poppet valve having an integrated pressure compensator (2009-11-24),
12. 7605692 - Indicator control system with camera section (2009-10-20),
13. 7596893 - Work machine (2009-10-06),
14. 7565801 - Swing drive device and work machine (2009-07-28),
15. 7562472 - Work machine (2009-07-21),
Company Overview
Caterpillar Japan Ltd. operates as a key subsidiary of Caterpillar Inc., focusing on the development and manufacturing of heavy machinery and equipment. The company specializes in a wide range of products, including construction and mining equipment, diesel and natural gas engines, and industrial gas turbines. With a strong emphasis on innovation, Caterpillar Japan is involved in advanced research and technology initiatives, contributing to the company's global leadership in the construction and resource industries.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 13 2026

17 Patents

#1,454 in Tokyo

#3,227 in Japan

#35,918 in the World

Tokyo, JP
Tokyo, Japan

Caterpillar Japan Ltd.

Forward Citations = 136

39 inventors:

goldMedal Satoshi Fujii (5 out of 40 patents)

silverMedal Isao Murota (4 out of 11 patents)

bronzeMedal Hideo Yamada (3 out of 24 patents)

4.  Eiji Akahane (3 out of 13 patents)

5.  Teruyuki Yamada (3 out of 5 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Caterpillar Japan Ltd.. Retrieved from https://idiyas.com/company/caterpillar-japan

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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