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Zexel Gmbh

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USPTO Granted Patents = 382

% Expired Patents = 0.26

Trademarks = 2

Forward Citations = 6,058

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352 inventors (with patents filed for the assignee):

Kunihiko Nishishita (35 out of 41 patents)

Soichi Kato (21 out of 27 patents)

Takashi Sugita (17 out of 19 patents)

4. Seiji Inoue (16 out of 17 patents)

5. Shinichi Ohi (12 out of 20 patents)

6. Nobuyuki Nakajima (11 out of 46 patents)

7. Jun Matsubara (11 out of 11 patents)

8. Kenichi Kubo (10 out of 14 patents)

9. Hiroshi Ohsawa (10 out of 11 patents)

10. Hiroshi Ishiwata (10 out of 13 patents)

11. Hideya Kikuchi (9 out of 10 patents)

12. Hiromi Kono (9 out of 23 patents)

13. Haruhisa Tamai (9 out of 18 patents)

14. Akihiko Takano (8 out of 11 patents)

15. Toshihiro Murayama (8 out of 10 patents)

Core Competencies:

Heat Exchanger

Hybrid Compressor

Fuel Injection

Swash Plate Compressor

Laminated Heat Exchanger

Refrigerant Compressor

Air Conditioning

Brushless Motor

Variable Capacity

Reciprocating Pump

Cooling Air

Temperature Distribution

382 patents: Sort by Forward Citations

1. 6957604 - Axial-piston drive system with a continuously adjustable piston stroke (2005-10-25),

2. 6799630 - Tube for heat exchangers and method of manufacturing the same (2004-10-05),

3. 6467170 - Tube for heat exchangers and method of manufacturing same (2002-10-22),

4. 6397938 - Heat exchanger (2002-06-04),

5. 6375436 - Hybrid compressor having two drive sources (2002-04-23),

6. 6368073 - Swash plate compressor (2002-04-09),

7. 6357520 - Heat exchanger (2002-03-19),

8. 6298830 - Method of jetting high-pressure fuel and apparatus therefor (2001-10-09),

9. 6295832 - Receiver tank (2001-10-02),

10. 6289979 - Heat exchanger (2001-09-18),

11. 6287081 - Control apparatus for hybrid compressor (2001-09-11),

12. 6260367 - Refrigerating cycle (2001-07-17),

13. 6250099 - Refrigerating device (2001-06-26),

14. 6227290 - Laminated heat exchanger (2001-05-08),

15. 6220342 - Laminated heat exchanger (2001-04-24),

Company Overview

Zexel GmbH, headquartered in Tokyo, specializes in advanced heat exchanger technology and related systems. The company focuses on the development and manufacturing of innovative solutions such as hybrid compressors, fuel injection systems, and swash plate compressors, which are integral to various applications including air conditioning and refrigeration. With a commitment to enhancing energy efficiency and performance, Zexel is a key player in the automotive and HVAC sectors, driving advancements in thermal management and fluid dynamics.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Nov 10 2026

382 Patents

#222 in Tokyo

#447 in Japan

#2,414 in the World

Zexel Gmbh

Forward Citations = 6,058

352 inventors:

Kunihiko Nishishita (35 out of 41 patents)

Soichi Kato (21 out of 27 patents)

Takashi Sugita (17 out of 19 patents)

4. Seiji Inoue (16 out of 17 patents)

5. Shinichi Ohi (12 out of 20 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Zexel Gmbh. Retrieved from https://idiyas.com/company/zexel

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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