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For the Inventor, By the Inventor

Hitachi, Japan

Yoji Nagai

USPTO Granted Patents = 4

Average Co-Inventor Count = 4.3

ph-index = 4

Forward Citations = 28(Granted Patents)


Location History:

  • Hitachi, JP (1982 - 1984)
  • Tokyo, JP (1990)

Company Filing History:

goldMedal4 out of 42,485 
 
Hitachi, Ltd.
 patents
silverMedal2 out of 162 
 
Hitachi Engineering Co., Ltd.
 patents
where one patent can have more than one assignee

Years Active: 1982-1990

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4 patents (USPTO):Explore Patents
1. 4920276 - Heat-and-electricity supply system (1990-04-24),
2. 4434620 - Condensation system for power plant (1984-03-06),
3. 4365476 - Condensation system for power plant (1982-12-28),
4. 4353213 - Side stream type condensing system and method of operating the same (1982-10-12),
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