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For the Inventor, By the Inventor

Hachioji, Japan

Toshiro Tsukada

This inventor holds 6 USPTO granted patents. Top assignees: Hitachi, Ltd., Hitachi Vlsi Engineering Corp.. Active years: 1979-1992.

USPTO Granted Patents = 6

% Patents Active = 100.0

Average Co-Inventor Count = 3.5

ph-index = 4

Forward Citations = 72(Granted Patents)


Location History:

  • Kokubunji, JP (1979 - 1983)
  • Hachioji, JP (1988 - 1992)

Company Filing History:

goldMedal6 out of 42,717 
 
Hitachi, Ltd.
 patents
silverMedal2 out of 182 
 
Hitachi Vlsi Engineering Corp.
 patents
where one patent can have more than one assignee

Years Active: 1979-1992

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6 patents (USPTO):Explore Patents
1. 5113090 - Voltage comparator (1992-05-12),
2. 4825287 - Digital video signal processor (1989-04-25),
3. 4745393 - Analog-to-digital converter (1988-05-17),
4. 4368457 - Analog-to-digital converter (1983-01-11),
5. 4250493 - Analog-to-digital converter employing constant-current circuit (1981-02-10),
6. 4178585 - Analog-to-digital converter (1979-12-11),

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