Growing community of inventors

Osaka, Japan

Masakazu Hirota

Average Co-Inventor Count = 6.00

ph-index = 1

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 1

Masakazu Hirota ↔ Tatsuo Yamaguchi (1 patent)Masakazu Hirota ↔ Kohji Nishida (1 patent)Masakazu Hirota ↔ Suguru Miyagawa (1 patent)Masakazu Hirota ↔ Makoto Saika (1 patent)Masakazu Hirota ↔ Takashi Fujikado (1 patent)Masakazu HirotaMasakazu Hirota (1 patent)Tatsuo YamaguchiTatsuo Yamaguchi (63 patents)Kohji NishidaKohji Nishida (21 patents)Suguru MiyagawaSuguru Miyagawa (16 patents)Makoto SaikaMakoto Saika (11 patents)Takashi FujikadoTakashi Fujikado (6 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Osaka University (1 from 987 patents)

2. Topcon Corporation (1 from 525 patents)


1 patent:

1. 10959615 - Eye-fatigue examining device and eye-fatigue examining method

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as of
12/28/2025
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