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Toshiyuki Haruna

USPTO Granted Patents = 7

Average Co-Inventor Count = 4.4

ph-index = 6

Forward Citations = 137(Granted Patents)

Company Filing History:

7 out of 42,508

Hitachi Computer Peripherals Co., Ltd.

where one patent can have more than one assignee

Years Active: 1985-1998

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7 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5742933 - Rotary memory storage device with cache control method and apparatus (1998-04-21),

2. 5584012 - Cache control method and rotary storage device having cache control (1996-12-10),

3. 5105318 - Head positioning device for use in magnetic disk equipment (1992-04-14),

4. 5012166 - Control system for brushless DC motor (1991-04-30),

5. 4803572 - Recording/reproducing method and apparatus of magnetic disk unit in (1989-02-07),

6. 4727439 - Magnetic disc unit system (1988-02-23),

7. 4542429 - Apparatus for reducing starting adhesion between a magnetic disc and (1985-09-17),

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