Growing community of inventors

Kitakyushu, Japan

Toshio Yamaguchi

Average Co-Inventor Count = 3.60

ph-index = 3

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 = 246

Toshio YamaguchiHiroshi Oyama (2 patents)Toshio YamaguchiShizuka Ando (2 patents)Toshio YamaguchiHironori Yamasaki (1 patent)Toshio YamaguchiToshifumi Shigematsu (1 patent)Toshio YamaguchiYoshinobu Uchimura (1 patent)Toshio YamaguchiYoshiki Hiruta (1 patent)Toshio YamaguchiNaoki Tsukamura (1 patent)Toshio YamaguchiToshio Yamaguchi (3 patents)Hiroshi OyamaHiroshi Oyama (2 patents)Shizuka AndoShizuka Ando (2 patents)Hironori YamasakiHironori Yamasaki (9 patents)Toshifumi ShigematsuToshifumi Shigematsu (6 patents)Yoshinobu UchimuraYoshinobu Uchimura (5 patents)Yoshiki HirutaYoshiki Hiruta (4 patents)Naoki TsukamuraNaoki Tsukamura (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Toto Ltd. (3 from 1,192 patents)


3 patents:

1. 5111539 - Toilet device with system for inspecting health conditions

2. 4389738 - Body part cleansing device

3. 4370764 - Topical washing device

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as of
12/19/2025
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