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Koichi Yasuda

USPTO Granted Patents = 18 (Patent Applications = 1)

EPO Patents = 2 (Patent Applications = 2)

Average Co-Inventor Count = 2.3

ph-index = 8

Forward Citations = 275(Granted Patents)

Location History:

Okayama, JP (1998)
Kanagawa, JP (1997 - 2002)
Chiba, JP (1986 - 2004)
Tokyo, JP (1990 - 2008)

Company Filing History:

12 out of 58,130

Sony Corporation

Kawasaki Steel Corporation

Tdk Corporation

4. 1 out of 1,796

Jfe Steel Corporation

Years Active: 1986-2008

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18 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 7390546 - Optical recording medium (2008-06-24),

2. 6956809 - Multilayer phase-change type optical disc capable of recording and reproducing information at high transfer rate (2005-10-18),

3. 6784402 - Steel wire for MAG welding and MAG welding method using the same (2004-08-31),

4. 6574180 - Multilayer optical disk and method of initializing the same (2003-06-03),

5. 6511788 - Multi-layered optical disc (2003-01-28),

6. 6434108 - Optical disc having narrow recording track relative to light spot diameter (2002-08-13),

7. 6246656 - Reduced thickness of a light transmissive layer for a high density optical disc (2001-06-12),

8. 6221455 - Multi-layer optical disc and recording/reproducing apparatus (2001-04-24),

9. 5972459 - Optical recording medium and optical disk apparatus (1999-10-26),

10. 5923639 - Phase-change optical recording medium having an additive related to the (1999-07-13),

11. 5837956 - Method of fabricating high strength and high toughness large-diameter (1998-11-17),

12. 5768221 - Method of and apparatus for initializing multi-layer optical recording (1998-06-16),

13. 5741603 - Optical disc (1998-04-21),

14. 5657310 - Optical disc (1997-08-12),

15. 5019460 - Galvannealed steel sheet having improved spot-weldability (1991-05-28),

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