Growing community of inventors

Sakai, Japan

Ken'ichi Sugawara

Average Co-Inventor Count = 1.44

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 = 61

Ken'ichi SugawaraTakeshi Ikuta (3 patents)Ken'ichi SugawaraHirokazu Hiraoka (2 patents)Ken'ichi SugawaraTaisei Morise (2 patents)Ken'ichi SugawaraJun Sato (1 patent)Ken'ichi SugawaraMasakazu Iwabuchi (1 patent)Ken'ichi SugawaraShouji Nakagawa (1 patent)Ken'ichi SugawaraShingo Matsuo (1 patent)Ken'ichi SugawaraHideki Nakajima (1 patent)Ken'ichi SugawaraMasuo Ban (1 patent)Ken'ichi SugawaraHirokazu Hashimoto (1 patent)Ken'ichi SugawaraItsuo Someya (1 patent)Ken'ichi SugawaraKen'ichi Sugawara (16 patents)Takeshi IkutaTakeshi Ikuta (63 patents)Hirokazu HiraokaHirokazu Hiraoka (39 patents)Taisei MoriseTaisei Morise (12 patents)Jun SatoJun Sato (139 patents)Masakazu IwabuchiMasakazu Iwabuchi (54 patents)Shouji NakagawaShouji Nakagawa (18 patents)Shingo MatsuoShingo Matsuo (13 patents)Hideki NakajimaHideki Nakajima (13 patents)Masuo BanMasuo Ban (12 patents)Hirokazu HashimotoHirokazu Hashimoto (3 patents)Itsuo SomeyaItsuo Someya (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Shimano Inc. (16 from 3,300 patents)


16 patents:

1. 7293732 - Spinning reel

2. 7163168 - Spinning reel handle assembly

3. 7118060 - Rotor for spinning reel

4. 7083133 - Fishing line guide mechanism for a spinning reel and method of manufacturing the same

5. 7077349 - Fishing line guide mechanism for spinning reel

6. 6978957 - Spool support structure for a spinning reel

7. 6971599 - Spinning reel rotor braking device

8. 6971601 - Spinning reel sound producing mechanism

9. 6905086 - Spinning-reel fishing-line guiding mechanism

10. 6883738 - Spinning reel handle assembly

11. 6880777 - Spool support structure for a spinning reel

12. 6854677 - Spinning-reel sounding mechanism

13. 6845934 - Rotor braking device for spinning reel

14. 6679445 - Spool for spinning reel

15. 6572042 - Spinning-reel line guiding apparatus

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as of
12/18/2025
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