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Kabushiki Kaisha Meidensha

USPTO Granted Patents = 246

CIPO Patents = 1

EPO Patents = 3

Trademarks = 4

Forward Citations = 3,533

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305 inventors (with patents filed for the assignee):

Shinzo Sakuma (19 out of 19 patents)

Yoshiyuki Kashiwagi (14 out of 19 patents)

Junichi Warabi (12 out of 12 patents)

4. Susumu Yoshida (11 out of 17 patents)

5. Toshimasa Fukai (10 out of 20 patents)

6. Tadashi Ashikaga (10 out of 10 patents)

7. Fumio Mizushina (10 out of 10 patents)

8. Yasushi Noda (9 out of 37 patents)

9. Toshimitsu Maruki (9 out of 9 patents)

10. Takashi Goto (9 out of 9 patents)

11. Hifumi Yanagisawa (9 out of 9 patents)

12. Yasuhiro Yamamoto (7 out of 122 patents)

13. Yuji Ishizaka (7 out of 7 patents)

14. Kaoru Kitakizaki (7 out of 7 patents)

15. Takayuki Mizuno (6 out of 46 patents)

Core Competencies:

Thermoelectric Effect Device

Energy Conversion System

Vehicle Speed Control

Vacuum Capacitor

Permanent Magnet Synchronous Motor

Photocatalyst Decomposition

Electric Vehicle Control

Dynamometer Testing

Induction Motor Control

Power Inverter

Rotating Electric Machine

Material Treatment System

246 patents: Sort by Forward Citations

1. 7812246 - Thermoelectric effect device, energy direct conversion system, and energy conversion system (2010-10-12),

2. 7693641 - Vehicle speed control system (2010-04-06),

3. 7504063 - Method of producing molded green body and producing insert by baking the green body (2009-03-17),

4. 7273133 - Elevator hoisting machine (2007-09-25),

5. 7214412 - Magenta toner and method for producing same (2007-05-08),

6. 7042699 - Vacuum variable capacitor (2006-05-09),

7. 7041930 - Bellows for use in vacuum capacitor (2006-05-09),

8. 7029635 - System for treating material containing noxious components (2006-04-18),

9. 6975499 - Vacuum variable capacitor with energization and heat shielding bellows (2005-12-13),

10. 6952102 - Method and apparatus for monitoring vacuum degree of vacuum in vacuum interrupter (2005-10-04),

11. 6870347 - Permanent magnet synchronous motor driving system, and method of testing permanent magnet synchronous motor driving system (2005-03-22),

12. 6870118 - Contact for vacuum interrupter, and vacuum interrupter using same (2005-03-22),

13. 6851520 - Hoisting machine having braking device with fulcrums, etc., arranged below brake wheel, and elevator system using same (2005-02-08),

14. 6846468 - Method for decomposing bromic acid by photocatalyst and apparatus therefor (2005-01-25),

15. 6836085 - Method and apparatus of controlling electric vehicle (2004-12-28),

Meidensha Corporation is a Japanese engineering company that specializes in the manufacturing and supply of electrical equipment. The company offers a wide range of products and services including transformers, motors, power systems, industrial machinery, and environmental solutions. With over a century of experience, Meidensha is committed to providing innovative and reliable solutions to meet the evolving needs of industries worldwide.

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

Company Badge

USPTO Data Jan 1 1976 - Jan 6 2026

246 Patents

#266 in Tokyo

#591 in Japan

#3,418 in the World

Kabushiki Kaisha Meidensha

Forward Citations = 3,533

305 inventors:

Shinzo Sakuma (19 out of 19 patents)

Yoshiyuki Kashiwagi (14 out of 19 patents)

Junichi Warabi (12 out of 12 patents)

4. Susumu Yoshida (11 out of 17 patents)

5. Toshimasa Fukai (10 out of 20 patents)

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