For the Inventor, By the Inventor

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Pulstec Industrial Co., Ltd.

USPTO Granted Patents = 3

Trademarks = 5

Forward Citations = 9

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6 inventors (with patents filed for the assignee):

Kenji Fukui (2 out of 2 patents)

Takayuki Hayashi (1 out of 3 patents)

Takuo Tanaka (1 out of 6 patents)

4. Satoshi Kawata (1 out of 6 patents)

5. Masahiko Ujiie (1 out of 1 patent)

6. Ricardo Musashi Okamoto (1 out of 1 patent)

3 patents: Sort by Forward Citations

1. 7619958 - Pickup apparatus for multi-layer optical disc (2009-11-17),

2. 7095510 - Point diffraction interferometer with enhanced contrast (2006-08-22),

3. 5909423 - Photo-detection device used in an optical pickup head for detecting (1999-06-01),

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USPTO Data Jan 1 1976 - Dec 16 2025

3 Patents

#455 in

#8,786 in Japan

Pulstec Industrial Co., Ltd.

Forward Citations = 9

6 inventors:

Kenji Fukui (2 out of 2 patents)

Takayuki Hayashi (1 out of 3 patents)

Takuo Tanaka (1 out of 6 patents)

4. Satoshi Kawata (1 out of 6 patents)

5. Masahiko Ujiie (1 out of 1 patent)

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