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For the Inventor, By the Inventor

Ishikawa, Japan

Asahi Engineering Co., Ltd.

Calculating rank
USPTO Granted Patents = 15

% Expired Patents = 53.3


Forward Citations = 93

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25 inventors (with patents filed for the assignee):

goldMedal Mitsuhiro Tokuno (8 out of 9 patents)

silverMedal Fumihiro Saito (6 out of 7 patents)

bronzeMedal Kazutoshi Tsuda (3 out of 4 patents)

4.  Hideo Yoshida (2 out of 17 patents)

5.  Seizo Miyata (2 out of 20 patents)

6.  Masato Sone (2 out of 14 patents)

7.  Nobuyoshi Sato (2 out of 11 patents)

8.  Toshio Hashiguchi (2 out of 2 patents)

9.  Nobuo Myojin (2 out of 2 patents)

10.  Nobuo Iwase (2 out of 2 patents)

11.  Tetsuya Hayashi (2 out of 2 patents)

12.  Takanori Nakamura (1 out of 10 patents)

13.  Seio Takeshima (1 out of 1 patent)

14.  Yoshiaki Nakai (1 out of 1 patent)

15.  Mamoru Sindome (1 out of 1 patent)


15 patents:

1. 10767333 - Construction method for foundation pile (2020-09-08),
2. 10036130 - Slab bridge structure (2018-07-31),
3. 8370983 - Rigid connection structure of bridge pier and concrete girder (2013-02-12),
4. 7857952 - Method for treating the surface of object and apparatus thereof (2010-12-28),
5. 7469439 - Floor slab bridge structure (2008-12-30),
6. 7418804 - Floor structure (2008-09-02),
7. 7373760 - Floor structure (2008-05-20),
8. RE40064 - Structure of floor slab bridge (2008-02-18),
9. 7323096 - Method for treating the surface of object and apparatus thereof (2008-01-29),
10. 6892410 - Reinforcement structure of truss bridge or arch bridge (2005-05-17),
11. 6068872 - Vacuum-heat processing method (2000-05-30),
12. 5988051 - Vacuum-heat processing apparatus (1999-11-23),
13. 5354542 - Movable tank type multi-purpose batch production system (1994-10-11),
14. 4656948 - Water containing explosive cartridge and preparation thereof (1987-04-14),
15. 4351252 - Method for treating water solution of waste material containing salt of (1982-09-28),
Company Overview
Asahi Engineering Co., Ltd. is a prominent Japanese company based in Ishikawa, specializing in the development and manufacturing of advanced engineering solutions. The company focuses on various sectors, including environmental technology, water treatment systems, and industrial machinery. With a commitment to innovation, Asahi Engineering leverages cutting-edge research to enhance operational efficiency and sustainability across its product offerings, contributing significantly to the engineering landscape in Japan and beyond.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Nov 3 2026

15 Patents

#13 in Ishikawa

#3,449 in Japan

#40,018 in the World

Ishikawa, JP
Ishikawa, Japan

Asahi Engineering Co., Ltd.

Forward Citations = 93

25 inventors:

goldMedal Mitsuhiro Tokuno (8 out of 9 patents)

silverMedal Fumihiro Saito (6 out of 7 patents)

bronzeMedal Kazutoshi Tsuda (3 out of 4 patents)

4.  Hideo Yoshida (2 out of 17 patents)

5.  Seizo Miyata (2 out of 20 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Asahi Engineering Co., Ltd.. Retrieved from https://idiyas.com/company/asahi-engineering-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]
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