Growing community of inventors

Saitama, Japan

Tetsuo Ohtsuka

Average Co-Inventor Count = 8.00

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 = 5

Tetsuo OhtsukaKazunori Kobayashi (2 patents)Tetsuo OhtsukaYuusuke Noguchi (2 patents)Tetsuo OhtsukaTomohiro Yamamoto (2 patents)Tetsuo OhtsukaYoshiya Itoh (2 patents)Tetsuo OhtsukaAkeo Maruyama (2 patents)Tetsuo OhtsukaShinichi Kudo (2 patents)Tetsuo OhtsukaMichio Sumiyoshi (2 patents)Tetsuo OhtsukaTetsuo Ohtsuka (2 patents)Kazunori KobayashiKazunori Kobayashi (55 patents)Yuusuke NoguchiYuusuke Noguchi (26 patents)Tomohiro YamamotoTomohiro Yamamoto (15 patents)Yoshiya ItohYoshiya Itoh (8 patents)Akeo MaruyamaAkeo Maruyama (7 patents)Shinichi KudoShinichi Kudo (3 patents)Michio SumiyoshiMichio Sumiyoshi (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Ricoh Company, Ltd. (2 from 28,577 patents)


2 patents:

1. 8422040 - Image forming system and method, management apparatus, and recording medium

2. 8405852 - Image forming system using a management apparatus to manage software components

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12/30/2025
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