IDiyas

For the Inventor, By the Inventor

Yokohama, Japan

Masahiko Fujita

USPTO Granted Patents = 6

Average Co-Inventor Count = 3.5

ph-index = 5

Forward Citations = 110(Granted Patents)


Location History:

  • Yokohama, JA (1976 - 1978)
  • Yokohama, JP (1978 - 1981)
  • Ibaraki, JP (1986)
  • Hitachi, JP (2013)

Company Filing History:

goldMedal6 out of 42,485 
 
Hitachi, Ltd.
 patents
silverMedal1 out of 152 
 
Japan Servo Co.,ltd.
 patents
where one patent can have more than one assignee

Years Active: 1976-2013

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6 patents (USPTO):Explore Patents
1. 8592708 - Gas-insulated vacuum circuit breaker (2013-11-26),
2. 4618092 - Refrigerant flow rate control device (1986-10-21),
3. 4303210 - Tape drive device (1981-12-01),
4. 4109170 - Electric motor having frequency generator (1978-08-22),
5. 4093897 - Electric motor (1978-06-06),
6. 3949161 - Video signal reproducing system (1976-04-06),
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