Growing community of inventors

Yokohama, Japan

Keizo Endo

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 = 72

Keizo EndoHiroshi Matsumura (2 patents)Keizo EndoNorio Shimamura (1 patent)Keizo EndoMasaru Kawabe (1 patent)Keizo EndoNoboru Oguma (1 patent)Keizo EndoSiro Masai (1 patent)Keizo EndoYoshifumi Hasunuma (1 patent)Keizo EndoKeizo Endo (2 patents)Hiroshi MatsumuraHiroshi Matsumura (10 patents)Norio ShimamuraNorio Shimamura (8 patents)Masaru KawabeMasaru Kawabe (3 patents)Noboru OgumaNoboru Oguma (2 patents)Siro MasaiSiro Masai (2 patents)Yoshifumi HasunumaYoshifumi Hasunuma (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Tokyo Tatsuno Co., Ltd. (2 from 22 patents)


2 patents:

1. 4589069 - Data input/output system for gasoline stations

2. 4522237 - Apparatus for dispensing liquids

Please report any incorrect information to support@idiyas.com
idiyas.com
as of
1/14/2026
Loading…