IDiyas

For the Inventor, By the Inventor

Hachioji, Japan

Yasunori Kanazawa

USPTO Granted Patents = 14

Average Co-Inventor Count = 3.0

ph-index = 9

Forward Citations = 254(Granted Patents)


Location History:

  • Hachioji, JA (1976)
  • Ibaraki, JP (1984)
  • Hachiouji, JP (1987 - 1988)
  • Hachioji, JP (1980 - 1991)

Company Filing History:

goldMedal11 out of 42,485 
 
Hitachi, Ltd.
 patents
silverMedal7 out of 1,112 
 
Hitachi Maxell, Limited
 patents
bronzeMedal1 out of 56 
 
Hitachi Maxwell, Ltd.
 patents
where one patent can have more than one assignee

Years Active: 1976-1991

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14 patents (USPTO):Explore Patents
1. 5007039 - Optical information recording/reproducing apparatus (1991-04-09),
2. 4959744 - Shutter assembled disc cartridge (1990-09-25),
3. 4811151 - Shutter assembled disc cartridge (1989-03-07),
4. 4799123 - Disc cartridge (1989-01-17),
5. 4740948 - Disc cartridge (1988-04-26),
6. 4733388 - Information recording disc (1988-03-22),
7. 4703408 - Apparatus and record carrier for optically writing information (1987-10-27),
8. 4678338 - Color sensor (1987-07-07),
9. 4539615 - Azimuthal magnetic recording and reproducing apparatus (1985-09-03),
10. 4472686 - Circuit for reproducing and demodulating modulated digital signals (1984-09-18),
11. 4363039 - Automatic operation control apparatus for a PCM recording and (1982-12-07),
12. 4282551 - PCM Recording and reproducing apparatus (1981-08-04),
13. 4227221 - PCM Recording apparatus (1980-10-07),
14. 3979721 - Pulse code modulation recording and reproducing apparatus (1976-09-07),
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