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For the Inventor, By the Inventor

Tokyo, Japan

Makoto Hagiwara

USPTO Granted Patents = 8 

 

Average Co-Inventor Count = 1.3

ph-index = 3

Forward Citations = 23(Granted Patents)


Location History:

  • Utsunomiya, JP (1992)
  • Tokyo, JP (1992 - 2024)

Company Filing History:

goldMedal5 out of 575 
 
Tokyo Institute of Technology
 patents
silverMedal3 out of 4 
 
Viscodrive Japan Kabushiki Kaisha
 patents
bronzeMedal1 out of 516 
 
Toshiba Mitsubishi-Electric Industrial Systems Corporation
 patents
where one patent can have more than one assignee

Years Active: 1992-2024

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8 patents (USPTO):Explore Patents
1. 11888396 - Chopper circuit (2024-01-30),
2. 10498233 - Bidirectional chopper circuit (2019-12-03),
3. 10103645 - Power converter (2018-10-16),
4. 9496805 - Single-phase power converter, three-phase two-phase power converter, and three-phase power converter (2016-11-15),
5. 9379632 - Power converter and method for controlling same (2016-06-28),
6. 5161658 - Viscous coupling (1992-11-10),
7. 5145470 - Power delivering apparatus (1992-09-08),
8. 5080210 - Viscous coupling (1992-01-14),
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