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Wataru Ishikawa

USPTO Granted Patents = 7

Average Co-Inventor Count = 4.0

ph-index = 6

Forward Citations = 93(Granted Patents)

Location History:

Kanagawa, JP (1987 - 1988)
Miyagi, JP (1989 - 1995)

Company Filing History:

7 out of 58,132

Sony Corporation

Years Active: 1987-1995

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7 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5469312 - Thin film magnetic head device having a core recess set to a (1995-11-21),

2. 5293288 - Dual thin-film magnetic head with side surface terminals (1994-03-08),

3. 5198949 - Thin film magnetic head with shaped magnetic layer (1993-03-30),

4. 4841120 - Thermal head (1989-06-20),

5. 4748000 - Soft magnetic thin film (1988-05-31),

6. 4707417 - Magnetic composite film (1987-11-17),

7. 4640871 - Magnetic material having high permeability in the high frequency range (1987-02-03),

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