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Osamu Kawakubo

USPTO Granted Patents = 10 (Patent Applications = 1)

Average Co-Inventor Count = 3.5

ph-index = 7

Forward Citations = 243(Granted Patents)

Company Filing History:

10 out of 58,129

Sony Corporation

Years Active: 1986-2011

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10 patents (USPTO):Sort by Forward Citations

Abstract keywords

1. 7940606 - Signal detecting device and signal detecting method (2011-05-10),

2. 6418103 - Initializing a phase-changing optical recording medium using a laser including a high speed shutter (2002-07-09),

3. 6312780 - Optical recording medium (2001-11-06),

4. 6246656 - Reduced thickness of a light transmissive layer for a high density optical disc (2001-06-12),

5. 6023451 - Optical recording medium and optical disk apparatus (2000-02-08),

6. 5972459 - Optical recording medium and optical disk apparatus (1999-10-26),

7. 5923639 - Phase-change optical recording medium having an additive related to the (1999-07-13),

8. 4972337 - Device for controlling rotation of a magnet used in a magneto-optical (1990-11-20),

9. 4771347 - Magneto-optical recording system (1988-09-13),

10. 4600397 - Method of producing discharge display device (1986-07-15),

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