Growing community of inventors

Matsudo, Japan

Takashi Ishizuka

Average Co-Inventor Count = 9.00

ph-index = 1

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 = 25

Takashi Ishizuka ↔ Tsuneo Kurotori (1 patent)Takashi Ishizuka ↔ Shinichi Kuramoto (1 patent)Takashi Ishizuka ↔ Manabu Mochizuki (1 patent)Takashi Ishizuka ↔ Kenzo Ariyama (1 patent)Takashi Ishizuka ↔ Yoshihiro Sugiyama (1 patent)Takashi Ishizuka ↔ Hajime Takanashi (1 patent)Takashi Ishizuka ↔ Yoshio Kudo (1 patent)Takashi Ishizuka ↔ Yoshio Sato (1 patent)Takashi IshizukaTakashi Ishizuka (1 patent)Tsuneo KurotoriTsuneo Kurotori (68 patents)Shinichi KuramotoShinichi Kuramoto (41 patents)Manabu MochizukiManabu Mochizuki (38 patents)Kenzo AriyamaKenzo Ariyama (31 patents)Yoshihiro SugiyamaYoshihiro Sugiyama (7 patents)Hajime TakanashiHajime Takanashi (3 patents)Yoshio KudoYoshio Kudo (1 patent)Yoshio SatoYoshio Sato (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Ricoh Company, Ltd. (1 from 28,546 patents)


1 patent:

1. 4860050 - Developing replenisher material for use in image forming device

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as of
12/10/2025
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