For the Inventor, By the Inventor

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Hoyo Corporation

USPTO Granted Patents = 3

Forward Citations = 37

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8 inventors (with patents filed for the assignee):

Masahiro Yoshida (1 out of 71 patents)

Teruo Yamashita (1 out of 29 patents)

Masao Ushida (1 out of 10 patents)

4. Masaru Mitsui (1 out of 23 patents)

5. Haruhiko Yamagata (1 out of 2 patents)

6. Yoshiatsu Yokoo (1 out of 13 patents)

7. Reikou Fukazaki (1 out of 4 patents)

8. Shinichiro Taguchi (1 out of 1 patent)

3 patents: Sort by Forward Citations

1. 6899979 - Photomask blank, photomask, methods of manufacturing the same, and method of forming micropattern (2005-05-31),

2. 6324332 - Optical fiber fixing member, method of manufacturing the optical fiber fixing member, optical fiber array, and method of manufacturing the optical fiber array (2001-11-27),

3. 6222621 - Spectacle lens evaluation method and evaluation device (2001-04-24),

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USPTO Data Jan 1 1976 - Dec 30 2025

3 Patents

#3,269 in Tokyo

#8,777 in Japan

Hoyo Corporation

Forward Citations = 37

8 inventors:

Masahiro Yoshida (1 out of 71 patents)

Teruo Yamashita (1 out of 29 patents)

Masao Ushida (1 out of 10 patents)

4. Masaru Mitsui (1 out of 23 patents)

5. Haruhiko Yamagata (1 out of 2 patents)

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