IDiyas

For the Inventor, By the Inventor

Tokyo, Japan

Hisao Yokoya

USPTO Granted Patents = 9

Average Co-Inventor Count = 1.9

ph-index = 5

Forward Citations = 119(Granted Patents)


Location History:

  • Tajimi, JP (1986)
  • Nakatsugawa, JP (1990)
  • Gifu, JP (1994 - 1997)
  • Tokyo, JP (2000 - 2008)

Company Filing History:

goldMedal9 out of 21,351 
 
Mitsubishi Denki Kabushiki Kaisha
 patents
silverMedal1 out of 622 
 
Mitsubishi Paper Mills Limited
 patents
where one patent can have more than one assignee

Years Active: 1986-2008

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9 patents (USPTO):Explore Patents
1. 7320361 - Heat exchanger (2008-01-22),
2. 7299862 - Total heat exchanging element (2007-11-27),
3. 6019170 - Spacer for heat exchangers, element for heat exchangers, and heat (2000-02-01),
4. 5624610 - Humidifier (1997-04-29),
5. 5318731 - Humidifier (1994-06-07),
6. 4963081 - Separator manufacturing apparatus (1990-10-16),
7. 4957423 - Separator manufacturing apparatus (1990-09-18),
8. 4897026 - Separator manufacturing apparatus (1990-01-30),
9. 4616695 - Heat exchanger (1986-10-14),
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