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Tabuchi Electric Co., Ltd.

USPTO Granted Patents = 25

% Expired Patents = 12.0

EPO Patents = 5

Forward Citations = 90

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32 inventors (with patents filed for the assignee):

Chienru Lung (7 out of 7 patents)

Hideki Hidaka (7 out of 7 patents)

Hirofumi Konishi (2 out of 48 patents)

4. Akimasa Tamura (2 out of 2 patents)

5. Hidehiko Sugimoto (2 out of 2 patents)

6. Takenori Kunimi (2 out of 2 patents)

7. Masaki Nakaishi (2 out of 5 patents)

8. Shinobu Miyazaki (2 out of 2 patents)

9. Shinichi Masuda (2 out of 6 patents)

10. Hirohito Amasaki (2 out of 2 patents)

11. Akihiko Hosokawa (1 out of 1 patent)

12. Hiroshi Asano (1 out of 14 patents)

13. Yuji Yamauchi (1 out of 1 patent)

14. Masataka Shintani (1 out of 1 patent)

15. Atsushi Kawabata (1 out of 1 patent)

Core Competencies:

Power Converter

Power Conditioner

Inverter Circuit

Grid Connection

Distributed Power Supply

Current Control

Abnormality Detection

Electromagnetic Induction

Transformer

Reactor

Discharge Lamp Lighting

25 patents: Sort by Forward Citations

1. 10897213 - Power converter and distributed power supply system (2021-01-19),

2. 10797485 - Power conditioner, power supply system, and current control method (2020-10-06),

3. 10777911 - Electric cable connecting terminal and method for connecting together electric cable connecting terminal and electric cable (2020-09-15),

4. 10536000 - Grid independent operation control unit, power conditioner, and grid independent operation control method (2020-01-14),

5. 10418812 - Abnormality detection device for grid interconnection relay and power conditioner (2019-09-17),

6. 10411478 - Grid connection power conversion device and disconnection/welding detection method therefor (2019-09-10),

7. 10381153 - Spacer fixing structure (2019-08-13),

8. 10298148 - Inverter circuit and distributed power source system including the same (2019-05-21),

9. 10236793 - Grid connection power conversion device and output current control method thereof (2019-03-19),

10. D842807 - Power converter (2019-03-12),

11. 10218261 - Grid connection power conversion device and start-up control method therefor (2019-02-26),

12. 9977094 - Islanding operation detection and islanding operation detection method (2018-05-22),

13. 9970988 - Relay abnormality detection device and power conditioner (2018-05-15),

14. 9906070 - Distributed power source system with storage battery (2018-02-27),

15. 9899748 - Terminal connection structure and method for producing same (2018-02-20),

Company Overview

Tabuchi Electric Co., Ltd. is a prominent Japanese company based in Osaka, specializing in the development and manufacturing of advanced electrical equipment and systems. The organization focuses on power supply solutions, including transformers and power distribution systems, catering to various industries such as energy, transportation, and telecommunications. With a commitment to innovation, Tabuchi Electric plays a significant role in enhancing electrical infrastructure and promoting sustainable energy practices in Japan and beyond.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

25 Patents

#277 in Osaka

#2,570 in Japan

#25,710 in the World

Tabuchi Electric Co., Ltd.

Forward Citations = 90

32 inventors:

Chienru Lung (7 out of 7 patents)

Hideki Hidaka (7 out of 7 patents)

Hirofumi Konishi (2 out of 48 patents)

4. Akimasa Tamura (2 out of 2 patents)

5. Hidehiko Sugimoto (2 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Tabuchi Electric Co., Ltd.. Retrieved from https://idiyas.com/company/tabuchi-electric-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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