Growing community of inventors

Tokyo, Japan

Etsuo Hiraishi

Average Co-Inventor Count = 2.02

ph-index = 8

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 = 187

Etsuo HiraishiMasakazu Sakamoto (6 patents)Etsuo HiraishiTeruhisa Numata (6 patents)Etsuo HiraishiTetsuyuki Doi (5 patents)Etsuo HiraishiHideo Aoyama (4 patents)Etsuo HiraishiTakeshi Shohoji (3 patents)Etsuo HiraishiKatsushi Hirokawa (2 patents)Etsuo HiraishiMasaaki Ito (1 patent)Etsuo HiraishiHideo Ohtani (1 patent)Etsuo HiraishiNobuhiko Oba (1 patent)Etsuo HiraishiKatuhiro Moriya (1 patent)Etsuo HiraishiTeruhisa Numasta (1 patent)Etsuo HiraishiHiroshi Morikawa (1 patent)Etsuo HiraishiTeruo Okamoto (1 patent)Etsuo HiraishiEtsuo Hiraishi (30 patents)Masakazu SakamotoMasakazu Sakamoto (61 patents)Teruhisa NumataTeruhisa Numata (19 patents)Tetsuyuki DoiTetsuyuki Doi (28 patents)Hideo AoyamaHideo Aoyama (16 patents)Takeshi ShohojiTakeshi Shohoji (29 patents)Katsushi HirokawaKatsushi Hirokawa (10 patents)Masaaki ItoMasaaki Ito (25 patents)Hideo OhtaniHideo Ohtani (4 patents)Nobuhiko ObaNobuhiko Oba (1 patent)Katuhiro MoriyaKatuhiro Moriya (1 patent)Teruhisa NumastaTeruhisa Numasta (1 patent)Hiroshi MorikawaHiroshi Morikawa (1 patent)Teruo OkamotoTeruo Okamoto (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Ryobi Limited (30 from 546 patents)


30 patents:

1. D400959 - Fishing reel

2. D400639 - Fishing reel

3. D390306 - Fishing reel

4. D353618 - Offset printing machine

5. D353396 - Offset printing machine

6. D351188 - Offset printing machine

7. D350561 - Offset printing machine

8. D309936 - Fishing reel

9. D309171 - Fishing reel

10. D308717 - Fishing reel

11. D307622 - Fishing reel

12. D303281 - Fishing reel

13. D300843 - Fishing reel

14. D300844 - Fishing reel

15. D300054 - Fishing reel

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idiyas.com
as of
12/16/2025
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