Growing community of inventors

Tokyo, Japan

Ei Yamamoto

Average Co-Inventor Count = 1.50

ph-index = 9

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 = 184

Ei YamamotoMitsuru Sakurai (3 patents)Ei YamamotoToshiaki Nagashima (2 patents)Ei YamamotoMinoru Aoyama (2 patents)Ei YamamotoKunihiko Kitayama (2 patents)Ei YamamotoAkio Suzuki (1 patent)Ei YamamotoYutaka Ban (1 patent)Ei YamamotoHiroyoshi Yoshida (1 patent)Ei YamamotoTakashi Kusanagi (1 patent)Ei YamamotoToshiyuki Kitamura (1 patent)Ei YamamotoHisakazu Shimizu (1 patent)Ei YamamotoAkihito Kanamori (1 patent)Ei YamamotoRyoichi Takahashi (1 patent)Ei YamamotoEi Yamamoto (19 patents)Mitsuru SakuraiMitsuru Sakurai (24 patents)Toshiaki NagashimaToshiaki Nagashima (101 patents)Minoru AoyamaMinoru Aoyama (19 patents)Kunihiko KitayamaKunihiko Kitayama (18 patents)Akio SuzukiAkio Suzuki (156 patents)Yutaka BanYutaka Ban (90 patents)Hiroyoshi YoshidaHiroyoshi Yoshida (49 patents)Takashi KusanagiTakashi Kusanagi (28 patents)Toshiyuki KitamuraToshiyuki Kitamura (28 patents)Hisakazu ShimizuHisakazu Shimizu (27 patents)Akihito KanamoriAkihito Kanamori (19 patents)Ryoichi TakahashiRyoichi Takahashi (13 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Canon Kabushiki Kaisha (19 from 90,697 patents)


19 patents:

1. 6041265 - Operational control device and method for an image processing apparatus

2. D382012 - Intermediate conveying machine for copying machine

3. D376170 - Toner bottle for copying machine

4. D375322 - Toner bottle cap for copying machine

5. D373375 - Copying machine

6. D373376 - Paper supplying device for copying machine

7. D354307 - Automatic document feeder for copying machine

8. D338226 - Copying machine

9. D334944 - Pressure plate for copying machine

10. D334769 - Copying machine

11. D333833 - Toner case for copying machine

12. D333131 - Converter for transmitting image and character data from a computer to a

13. D322979 - Automatic slide film exchanging unit

14. D322978 - Film scanner

15. D319658 - Toner container for photo-copier

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as of
12/26/2025
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