Growing community of inventors

Tokyo, Japan

Yutaka Okayama

Average Co-Inventor Count = 2.29

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 = 80

Yutaka Okayama ↔ Takeshi Komada (3 patents)Yutaka Okayama ↔ Tomohiko Hirata (1 patent)Yutaka Okayama ↔ Minoru Aoyama (1 patent)Yutaka Okayama ↔ Takeishi Komada (1 patent)Yutaka OkayamaYutaka Okayama (4 patents)Takeshi KomadaTakeshi Komada (44 patents)Tomohiko HirataTomohiko Hirata (20 patents)Minoru AoyamaMinoru Aoyama (19 patents)Takeishi KomadaTakeishi Komada (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Canon Kabushiki Kaisha (4 from 90,809 patents)


4 patents:

1. D320041 - Copying machine

2. D314212 - Developing device for copying machine

3. D310539 - Developing device for copying machine

4. D308885 - Developing device for copying machine

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as of
1/8/2026
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