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For the Inventor, By the Inventor

Kadoma, Japan

Yoichi Yokoyama

USPTO Granted Patents = 7

Average Co-Inventor Count = 4.0

ph-index = 6

Forward Citations = 97(Granted Patents)


Location History:

  • Itami, JP (1986)
  • Kadoma, JP (1987 - 1995)

Company Filing History:

goldMedal7 out of 1,623 
 
Matsushita Electric Works, Ltd.
 patents

Years Active: 1986-1995

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7 patents (USPTO):Explore Patents
1. 5420555 - Plural sealed contact units with common electromagnetic operating (1995-05-30),
2. 5389905 - Damper, electromagnet assembly employing the damper, and relay employing (1995-02-14),
3. 5359305 - Electromagnetic relay (1994-10-25),
4. 5049845 - Welding free relay contact device (1991-09-17),
5. 4752660 - Current limiting circuit breaker with an arc shearing plate (1988-06-21),
6. 4703294 - Remotely controllable relay (1987-10-27),
7. 4604596 - Remotely controllable circuit breaker (1986-08-05),
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