For the Inventor, By the Inventor

Enter assignee name

Tekken Construction Co., Ltd.

Calculating rank

USPTO Granted Patents = 20

Forward Citations = 139

Loading Chart...

Loading Chart...

22 inventors (with patents filed for the assignee):

Hironobu Yamazaki (4 out of 6 patents)

Fumitaka Kumai (4 out of 4 patents)

Yoshiaki Uchida (3 out of 5 patents)

4. Kazuo Horimatsu (3 out of 3 patents)

5. Toshiaki Takano (2 out of 17 patents)

6. Minoru Yamamoto (2 out of 20 patents)

7. Yoshihiro Takano (2 out of 2 patents)

8. Yasuyuki Iwamitsu (2 out of 2 patents)

9. Shigeru Kobayashi (2 out of 2 patents)

10. Akira Nakaya (2 out of 2 patents)

11. Junpei Kawade (2 out of 2 patents)

12. Yoshihiro Kumaki (2 out of 2 patents)

13. Mitsuo Inoue (2 out of 2 patents)

14. Kunitaka Saito (2 out of 2 patents)

15. Takashi Odashima (2 out of 2 patents)

20 patents: Sort by Forward Citations

1. 4913587 - Form assembly for making covering wall of tunnel made by shield type (1990-04-03),

2. 4863313 - Method for lining tunnel wall formed by shield excavation (1989-09-05),

3. 4799824 - Method of making covering wall of tunnel made by shield type excavator (1989-01-24),

4. 4786206 - Lining tunnel wall made by shield type tunnel excavator (1988-11-22),

5. 4671362 - Automatic fire extinguisher with infrared ray responsive type fire (1987-06-09),

6. 4648462 - Automatic fire extinguisher with infrared ray responsive type fire (1987-03-10),

7. 4610572 - Method of building strengthened embankment body (1986-09-09),

8. 4591297 - Method of building strengthened, embanked foundation (1986-05-27),

9. 4519730 - Method for constructing underground structure (1985-05-28),

10. 4384807 - Excavation controlling method in hydraulic shield tunnelling (1983-05-24),

11. 4167290 - Shield type hydraulic tunnel boring machine (1979-09-11),

12. 4152027 - Shield type hydraulic tunnel boring machine (1979-05-01),

13. 4142763 - Attitude control means of tunnel boring machine shield (1979-03-06),

14. 4116487 - Device for removing gravels and the like from discharged mud in (1978-09-26),

15. 4111486 - Method and system for performing attitude control of tunnel excavating (1978-09-05),

Company Overview

Tekken Construction Co., Ltd. is a prominent player in the construction and engineering sector based in Tokyo, Japan. The company specializes in a wide range of construction services, including civil engineering, building construction, and infrastructure development. With a focus on innovative techniques and sustainable practices, Tekken is committed to enhancing urban environments and contributing to community development. The firm emphasizes quality and safety in its projects, positioning itself as a trusted partner in both public and private sector initiatives.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

20 Patents

#1,343 in Tokyo

#2,945 in Japan

#31,295 in the World

Tekken Construction Co., Ltd.

Forward Citations = 139

22 inventors:

Hironobu Yamazaki (4 out of 6 patents)

Fumitaka Kumai (4 out of 4 patents)

Yoshiaki Uchida (3 out of 5 patents)

4. Kazuo Horimatsu (3 out of 3 patents)

5. Toshiaki Takano (2 out of 17 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Tekken Construction Co., Ltd.. Retrieved from https://idiyas.com/company/tekken-construction-company

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]

Loading…