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Naoyuki Amaya

USPTO Granted Patents = 6

Average Co-Inventor Count = 5.0

ph-index = 3

Forward Citations = 24(Granted Patents)

Location History:

Ibaragi, JP (1987)
Oita, JP (1989)
Higashiarai, Yatabemachi, Tsukuba-gun, Ibaraki-ken, JP (1990)
Tsukuba, JP (1990 - 1999)

Company Filing History:

Nippon Oil Fats Co., Ltd.

1 out of 33,490

Seiko Epson Corporation

2 out of 832,912

Other

patents

where one patent can have more than one assignee

Years Active: 1987-1999

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6 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5883152 - Contact lens (1999-03-16),

2. 5209847 - Ultrathin membrane of polymethacrylate or polycrotonate and device (1993-05-11),

3. 4948854 - Transparent optical article and process for preparing same (1990-08-14),

4. 4933406 - Contact lens article made of silicon- and fluorine-containing resin (1990-06-12),

5. 4855374 - Optical resin from diallyl esters (1989-08-08),

6. 4670520 - Method for modifying polyfumaric acid diester (1987-06-02),

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