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Tokyo Electric Co.

USPTO Granted Patents = 492

EPO Patents = 1

Forward Citations = 6,320

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440 inventors (with patents filed for the assignee):

Kuniaki Ochiai (21 out of 25 patents)

Mitsuo Uchimura (17 out of 29 patents)

Seiji Koike (15 out of 15 patents)

4. Yasuo Matsumoto (13 out of 27 patents)

5. Ikuzo Sugiura (13 out of 20 patents)

6. Tohru Kitagawa (13 out of 14 patents)

7. Kazuaki Sugimoto (13 out of 15 patents)

8. Yoshihisa Nishiyama (13 out of 14 patents)

9. Kazuhiro Fushimi (12 out of 23 patents)

10. Mitsuharu Endo (12 out of 19 patents)

11. Tsugio Shiozaki (12 out of 15 patents)

12. Masashi Shimosato (12 out of 12 patents)

13. Osamu Koizumi (12 out of 12 patents)

14. Satoshi Kitahara (12 out of 19 patents)

15. Takeshi Tashiro (11 out of 14 patents)

Core Competencies:

Heat Treatment Devices

Synthetic Fiber Filaments

Power Consumption Control

Ink Jet Printers

Photoconductors

Optical Scanning Devices

Electrophotographic Printing

Electronic Cash Registers

Label Printers

Image Scanners

Data Communication Apparatus

False Twisting Apparatus

492 patents: Sort by Forward Citations

1. 6929134 - Heat treatment device for synthetic fiber filament yarns (2005-08-16),

2. 6908304 - Heat treating device for synthetic fiber yarn (2005-06-21),

3. 5878770 - Pressure release mechanism for heating apparatus using saturated vapor (1999-03-09),

4. 5786828 - Detachable print unit having updatable condition memory and printer (1998-07-28),

5. 5718109 - Heating device for use with an apparatus for false twisting of synthetic (1998-02-17),

6. 5568607 - Apparatus, systems and methods for controlling power consumption in a (1996-10-22),

7. 5519924 - Heating apparatus for false twisting of synthetic fiber (1996-05-28),

8. D366001 - Electronic scale with printer (1996-01-09),

9. 5475477 - Developing apparatus (1995-12-12),

10. D363481 - Facsimile transceiver (1995-10-24),

11. 5453850 - Image reading apparatus and method using light shutter for blocking (1995-09-26),

12. 5438576 - Data communication apparatus and method including means for and step of (1995-08-01),

13. 5436698 - Image forming unit having a detachable cartridge (1995-07-25),

14. D359728 - Controller with keyboard for a cash register (1995-06-27),

15. 5428382 - Ink jet printer head and manufacturing method therefor (1995-06-27),

Tokyo Electric Co. (TEPCO) is a leading electric utility company in Japan, providing reliable and sustainable energy solutions to millions of customers. With a strong focus on innovation and environmental stewardship, TEPCO is committed to driving the energy transition towards a cleaner and greener future.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

492 Patents

#168 in Tokyo

#377 in Japan

#1,906 in the World

Tokyo Electric Co.

Forward Citations = 6,320

440 inventors:

Kuniaki Ochiai (21 out of 25 patents)

Mitsuo Uchimura (17 out of 29 patents)

Seiji Koike (15 out of 15 patents)

4. Yasuo Matsumoto (13 out of 27 patents)

5. Ikuzo Sugiura (13 out of 20 patents)

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