Growing community of inventors

Tokyo, Japan

Hirofumi Yamada

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 = 0

Hirofumi YamadaTeiji Sakashita (2 patents)Hirofumi YamadaYosuke Suyama (2 patents)Hirofumi YamadaYoshitake Shigematsu (2 patents)Hirofumi YamadaHiroshi Nagami (2 patents)Hirofumi YamadaTsuneaki Omori (2 patents)Hirofumi YamadaMao Suzukawa (2 patents)Hirofumi YamadaYoji Ebisu (2 patents)Hirofumi YamadaHirofumi Yamada (2 patents)Teiji SakashitaTeiji Sakashita (14 patents)Yosuke SuyamaYosuke Suyama (4 patents)Yoshitake ShigematsuYoshitake Shigematsu (4 patents)Hiroshi NagamiHiroshi Nagami (4 patents)Tsuneaki OmoriTsuneaki Omori (3 patents)Mao SuzukawaMao Suzukawa (2 patents)Yoji EbisuYoji Ebisu (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Nitto-Denko Corporation (2 from 3,872 patents)

2. Nitoms, Inc. (2 from 8 patents)


2 patents:

1. 12342977 - Cleaner sheet, layered body of cleaner sheet, cleaning tool, and method for producing cleaner sheet

2. 11412916 - Cleaner sheet, layered body of cleaner sheet, cleaning tool, and method for producing cleaner sheet

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1/8/2026
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