Growing community of inventors

Gifu, Japan

Tetsuo Takeyama

Average Co-Inventor Count = 4.44

ph-index = 2

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 = 103

Tetsuo TakeyamaYoshinori Hatayama (2 patents)Tetsuo TakeyamaTakashi Hazui (1 patent)Tetsuo TakeyamaKayo Yoshimura (1 patent)Tetsuo TakeyamaMasuo Kondo (1 patent)Tetsuo TakeyamaKimio Nagasawa (1 patent)Tetsuo TakeyamaMasahiro Ishiba (1 patent)Tetsuo TakeyamaTetsuo Takeyama (2 patents)Yoshinori HatayamaYoshinori Hatayama (8 patents)Takashi HazuiTakashi Hazui (3 patents)Kayo YoshimuraKayo Yoshimura (2 patents)Masuo KondoMasuo Kondo (1 patent)Kimio NagasawaKimio Nagasawa (1 patent)Masahiro IshibaMasahiro Ishiba (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Sanyo Electric Co., Ltd. (2 from 8,780 patents)


2 patents:

1. 6122650 - Method and apparatus for updating time related data in a modified

2. 5802534 - Apparatus and method for editing text

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as of
12/20/2025
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