Growing community of inventors

Osaka, Japan

Hirofumi Tominaga

Average Co-Inventor Count = 1.50

ph-index = 4

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 = 81

Hirofumi TominagaShinichi Hadehara (2 patents)Hirofumi TominagaKatsuya Takeshi (1 patent)Hirofumi TominagaNaoya Aoyama (1 patent)Hirofumi TominagaNoriaki Atake (1 patent)Hirofumi TominagaKatsumi Matsumoto (1 patent)Hirofumi TominagaHirofumi Tominaga (7 patents)Shinichi HadeharaShinichi Hadehara (10 patents)Katsuya TakeshiKatsuya Takeshi (6 patents)Naoya AoyamaNaoya Aoyama (5 patents)Noriaki AtakeNoriaki Atake (2 patents)Katsumi MatsumotoKatsumi Matsumoto (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Yamamoto Kogaku Co., Ltd. (7 from 120 patents)


7 patents:

1. 8959669 - Goggles

2. 8650667 - Swimming goggles

3. D629442 - Goggle body

4. 7526813 - Goggles

5. 7490365 - Swimming goggles

6. D565083 - Sunglasses

7. D504145 - Swimming goggles

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as of
12/14/2025
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