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Fujisawa, Japan

Hideyuki Yamakawa

USPTO Granted Patents = 7

Average Co-Inventor Count = 5.8

ph-index = 7

Forward Citations = 69(Granted Patents)

Location History:

San Jose, CA (US) (1999)
Fujisawa, JP (1995 - 2005)

Company Filing History:

5 out of 42,508

Hitachi Video and Information System, Inc.

Hitachi Global Storage Technologies Japan, Ltd.

4. 1 out of 832,880

Other

patents

where one patent can have more than one assignee

Years Active: 1995-2005

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7 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 6980385 - Apparatus for information recording and reproducing (2005-12-27),

2. 6791776 - Apparatus for information recording and reproducing (2004-09-14),

3. 5940416 - Digital signal decoding apparatus and a decoding method used therein (1999-08-17),

4. 5844741 - System for reproducing high-density magnetic record data with viterbi (1998-12-01),

5. 5625632 - Magnetic disk drive including a data discrimination apparatus capable of (1997-04-29),

6. 5553104 - Information recording/reproducing apparatus having a clock timing (1996-09-03),

7. 5448424 - AGC circuit and recording and reproducing apparatus using AGC circuit (1995-09-05),

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