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Yoshiaki Katsuyama

USPTO Granted Patents = 8

Average Co-Inventor Count = 3.1

ph-index = 6

Forward Citations = 119(Granted Patents)

Location History:

Osaka, JP (1986)
Yamatotakada, JP (1989)
Muro, JP (1987 - 1994)

Company Filing History:

Sumitomo Special Metals Co., Ltd.

Nippon Tungsten Co., Ltd.

Sumitomo Special Metal Co. Ltd.

where one patent can have more than one assignee

Years Active: 1986-1994

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8 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5302560 - Process for the production of magnetic head sliders (1994-04-12),

2. 4875987 - Grooved magnetic substrates and method for producing the same (1989-10-24),

3. 4859638 - Magnetic head sliders, materials therefor, and the process for the (1989-08-22),

4. 4808455 - Magnetic recording disc and process for producing the same (1989-02-28),

5. 4777074 - Grooved magnetic substrates and method for producing the same (1988-10-11),

6. 4690846 - Recording disk substrate members and process for producing same (1987-09-01),

7. 4659606 - Substrate members for recording disks and process for producing same (1987-04-21),

8. 4608293 - Composite substrate for a thin-film magnetic head (1986-08-26),

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