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Iwao Hatakeyama

USPTO Granted Patents = 4

Average Co-Inventor Count = 3.4

ph-index = 2

Forward Citations = 52(Granted Patents)

Location History:

Ibaraki, JP (1986)
Mito, JP (1985 - 1987)
Ibaragi, JP (1991)

Company Filing History:

Nippon Telegraph and Telephone Public Corporation

Nippon Telegraph and Telephone Corporation

Years Active: 1985-1991

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4 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5051970 - Magneto-optic recording system with overwrite capability (1991-09-24),

2. 4642245 - Iron oxide magnetic film and process for fabrication thereof (1987-02-10),

3. 4618901 - High density magnetic head (1986-10-21),

4. 4544612 - Iron oxide magnetic film and process for fabrication thereof (1985-10-01),

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