% Expired Patents = 57.1

Forward Citations = 55

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16 inventors (with patents filed for the assignee):

Masanori Tsuji (3 out of 3 patents)

Takahide Maezawa (3 out of 3 patents)

Hiroki Naganawa (1 out of 7 patents)

4. Makoto Yoshino (1 out of 11 patents)

5. Junichi Oki (1 out of 1 patent)

6. Naka Shibata (1 out of 1 patent)

7. Masakazu Kondou (1 out of 1 patent)

8. Hiroto Nakatani (1 out of 15 patents)

9. Kenichi Yanai (1 out of 14 patents)

10. Satoshi Nomura (1 out of 1 patent)

11. Yuuichi Minamiyama (1 out of 1 patent)

12. Ichiro Furihata (1 out of 1 patent)

13. Kenji Kuno (1 out of 1 patent)

14. Yasushi Iwata (1 out of 1 patent)

15. Shun Takizawa (1 out of 1 patent)

7 patents: Sort by Forward Citations

1. 8701429 - Air conditioning system (2014-04-22),

2. 8251101 - Refrigerant piping unit and method of manufacturing pipe for the same (2012-08-28),

3. 7996990 - Heat exchanger and method for manufacturing the same (2011-08-16),

4. 7503382 - Heat exchanger (2009-03-17),

5. 7500515 - Heat exchanger and method of manufacturing the same (2009-03-10),

6. 7137438 - Storage device (2006-11-21),

7. 6942624 - Biological information detection system (2005-09-13),

Company Overview

Gac Corporation is a leading provider of innovative solutions in the fields of technology, renewable energy, and logistics. With a strong focus on sustainability and efficiency, Gac Corporation is committed to driving positive change in the world through its cutting-edge products and services. From solar panels to advanced transportation systems, Gac Corporation is at the forefront of the industries it serves, delivering exceptional value to customers around the globe.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

7 Patents

#74 in Nagano

#5,459 in Japan

Nagano, Japan

Gac Corporation

Forward Citations = 55

16 inventors:

Masanori Tsuji (3 out of 3 patents)

Takahide Maezawa (3 out of 3 patents)

Hiroki Naganawa (1 out of 7 patents)

4. Makoto Yoshino (1 out of 11 patents)

5. Junichi Oki (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Gac Corporation. Retrieved from https://idiyas.com/company/gac

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]