Growing community of inventors

Tokyo, Japan

Ryoichi Hayashi

Average Co-Inventor Count = 2.59

ph-index = 5

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 = 121

Ryoichi HayashiTsutomu Kimura (3 patents)Ryoichi HayashiYoshiaki Sakamoto (2 patents)Ryoichi HayashiKiichiro Sakamoto (2 patents)Ryoichi HayashiEiichi Kito (1 patent)Ryoichi HayashiTakaaki Terashita (1 patent)Ryoichi HayashiJun Nakagawa (1 patent)Ryoichi HayashiTakeo Shimada (1 patent)Ryoichi HayashiJunji Sugano (1 patent)Ryoichi HayashiKoichi Sugahara (1 patent)Ryoichi HayashiRyoichi Hayashi (7 patents)Tsutomu KimuraTsutomu Kimura (86 patents)Yoshiaki SakamotoYoshiaki Sakamoto (41 patents)Kiichiro SakamotoKiichiro Sakamoto (32 patents)Eiichi KitoEiichi Kito (95 patents)Takaaki TerashitaTakaaki Terashita (66 patents)Jun NakagawaJun Nakagawa (34 patents)Takeo ShimadaTakeo Shimada (7 patents)Junji SuganoJunji Sugano (6 patents)Koichi SugaharaKoichi Sugahara (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Fuji Photo Film Company, Limited (7 from 16,458 patents)


7 patents:

1. 6825948 - Group print, and print system and method for making group print

2. 5822040 - Image testing method

3. 4991004 - Film previewer which simultaneously displays a 110 and a 135 frame

4. 4935809 - Color film analyzing method and apparatus

5. 4797712 - Color negative inspection apparatus

6. 4782390 - Color negative inspection apparatus for displaying and sequentially

7. 4645334 - Printing and trimming apparatus

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1/7/2026
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