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For the Inventor, By the Inventor

Kochi, Japan

Giken Ltd.


USPTO Granted Patents = 8


Trademarks = 4

Forward Citations = 5

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18 inventors (with patents filed for the assignee):

goldMedal Masaaki Ono (4 out of 10 patents)

silverMedal Akio Kitamura (3 out of 4 patents)

bronzeMedal Toshio Ikeda (2 out of 2 patents)

4.  Hiroaki Tanouchi (2 out of 2 patents)

5.  Yoshihiro Morioka (2 out of 2 patents)

6.  Masanori Kamenaga (1 out of 1 patent)

7.  Ryosuke Hamamoto (1 out of 1 patent)

8.  Mamoru Uesugi (1 out of 1 patent)

9.  Masahiko Yoshikawa (1 out of 1 patent)

10.  Katsuhiko Ono (1 out of 1 patent)

11.  Kengo Nonaka (1 out of 1 patent)

12.  Yukihide Okamura (1 out of 1 patent)

13.  Kazunari Takahashi (1 out of 1 patent)

14.  Tatsuya Saibara (1 out of 1 patent)

15.  Toshihiko Murata (1 out of 1 patent)


8 patents:

1. 12325151 - Method and device for producing concrete pile (2025-06-10),
2. 12258724 - Pile press-in construction method, pile supplying device, and pile press-in device (2025-03-25),
3. 12122253 - Vehicle charging apparatus and mechanical parking apparatus (2024-10-22),
4. 11661717 - Pile press-in device and pile press-in method (2023-05-30),
5. 11530520 - Pile press-in machine and pile press-in method (2022-12-20),
6. 11519149 - Pile joint, pile coupling structure, and pile coupling method (2022-12-06),
7. 11434652 - Parking system that controls check-in and check-out of rental vehicle (2022-09-06),
8. 10166135 - Posture corrective brace (2019-01-01),
Company Overview
Giken Ltd. is a global construction company specializing in innovative foundation technologies such as silent pilings, press-in piling, and soil stabilizing methods. With a focus on sustainability and efficiency, Giken aims to revolutionize the construction industry with its cutting-edge solutions.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 13 2026

8 Patents

#5 in Kochi

#5,045 in Japan

Kochi, JP
Kochi, Japan

Giken Ltd.

Forward Citations = 5

18 inventors:

goldMedal Masaaki Ono (4 out of 10 patents)

silverMedal Akio Kitamura (3 out of 4 patents)

bronzeMedal Toshio Ikeda (2 out of 2 patents)

4.  Hiroaki Tanouchi (2 out of 2 patents)

5.  Yoshihiro Morioka (2 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Giken Ltd.. Retrieved from https://idiyas.com/company/giken

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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