Growing community of inventors

Kawasaki, Japan

Tomohiko Hirata

Average Co-Inventor Count = 1.57

ph-index = 12

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 = 287

Tomohiko Hirata ↔ Minoru Aoyama (7 patents)Tomohiko Hirata ↔ Takeshi Komada (5 patents)Tomohiko Hirata ↔ Yosuke Ohsawa (4 patents)Tomohiko Hirata ↔ Tomohiro Ohmori (2 patents)Tomohiko Hirata ↔ Mitsuru Sakurai (1 patent)Tomohiko Hirata ↔ Yutaka Okayama (1 patent)Tomohiko Hirata ↔ Takeishi Komada (1 patent)Tomohiko HirataTomohiko Hirata (20 patents)Minoru AoyamaMinoru Aoyama (19 patents)Takeshi KomadaTakeshi Komada (44 patents)Yosuke OhsawaYosuke Ohsawa (12 patents)Tomohiro OhmoriTomohiro Ohmori (2 patents)Mitsuru SakuraiMitsuru Sakurai (24 patents)Yutaka OkayamaYutaka Okayama (4 patents)Takeishi KomadaTakeishi Komada (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Canon Kabushiki Kaisha (18 from 90,753 patents)

2. Tomy Company, Ltd. (2 from 577 patents)


20 patents:

1. D442616 - Camera

2. D442617 - Camera

3. D320041 - Copying machine

4. D318872 - Copying machine

5. D316424 - Copying machine

6. D316425 - Copying machine

7. D315574 - Copying machine

8. D314789 - Original sheet feeding device for a copying machine

9. D313814 - Copying machine

10. D311755 - Combined sheet feeder and editing device for a copying machine

11. D310238 - Combined sheet feeder and editing device for a copying machine

12. D310237 - Copier control device

13. D310239 - Original sheet feeding device for copying machine

14. D309912 - Sorter for copying machine

15. D309632 - Sorter for copier

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as of
1/5/2026
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