Growing community of inventors

Osaka, Japan

Junichi Hanamura

Average Co-Inventor Count = 1.04

ph-index = 10

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 = 285

Junichi HanamuraHirohisa Toyoshima (2 patents)Junichi HanamuraJunichi Hanamura (26 patents)Hirohisa ToyoshimaHirohisa Toyoshima (4 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Shimano Inc. (25 from 3,296 patents)

2. Shimano Industrial Co., Ltd. (1 from 444 patents)


26 patents:

1. D575202 - Rear derailleur

2. D555546 - Quick release lever for a bicycle hub

3. D555048 - Front chain wheel for a bicycle

4. D555050 - Front derailleur for a bicycle

5. D550593 - Bicycle crank

6. D548656 - Disc brake unit for a bicycle

7. D545184 - Quick release nut for a bicycle hub

8. D544420 - Shift and brake control unit for a bicycle

9. D544421 - Shift and brake control unit for a bicycle

10. D543913 - Bicycle brake operating device

11. D535919 - Outer link for a rear derailleur

12. D534460 - Bicycle derailleur

13. D533482 - Rear derailleur

14. D533124 - Bicycle shifter

15. 6862949 - Conduit cover for bicycle

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as of
12/11/2025
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