Growing community of inventors

Onsen-gun, Japan

Keiji Yamamoto

Average Co-Inventor Count = 3.00

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 = 19

Keiji YamamotoTadashi Iura (2 patents)Keiji YamamotoKazuki Mori (1 patent)Keiji YamamotoYoshiyuki Tsukamura (1 patent)Keiji YamamotoKeiji Yamamoto (2 patents)Tadashi IuraTadashi Iura (11 patents)Kazuki MoriKazuki Mori (2 patents)Yoshiyuki TsukamuraYoshiyuki Tsukamura (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Iura Co., Ltd. (2 from 2 patents)


2 patents:

1. 7003820 - Supportive device for handicapped people

2. 6568233 - Method and apparatus of diametrically expanding metal shafts

Please report any incorrect information to support@idiyas.com
idiyas.com
as of
12/20/2025
Loading…