Growing community of inventors

Tokyo, Japan

Takamasa Ina

Average Co-Inventor Count = 5.46

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 = 5

Takamasa InaKen Higuchi (1 patent)Takamasa InaKeisuke Hirai (1 patent)Takamasa InaYasuhiro Kondo (1 patent)Takamasa InaKouji Fukuya (1 patent)Takamasa InaMasafumi Fukagawa (1 patent)Takamasa InaKen Hirabayashi (1 patent)Takamasa InaKazuya Yashima (1 patent)Takamasa InaYousuke Ban (1 patent)Takamasa InaReo Seike (1 patent)Takamasa InaTakamasa Ina (2 patents)Ken HiguchiKen Higuchi (15 patents)Keisuke HiraiKeisuke Hirai (13 patents)Yasuhiro KondoYasuhiro Kondo (8 patents)Kouji FukuyaKouji Fukuya (4 patents)Masafumi FukagawaMasafumi Fukagawa (2 patents)Ken HirabayashiKen Hirabayashi (2 patents)Kazuya YashimaKazuya Yashima (1 patent)Yousuke BanYousuke Ban (1 patent)Reo SeikeReo Seike (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Lixil Corporation (2 from 113 patents)


2 patents:

1. 10392790 - Flush toilet

2. 8677519 - Drainage connector

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as of
1/4/2026
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