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

Company Filing History:

1. Lixil Corporation (2 from 112 patents)


2 patents:

1. 10392790 - Flush toilet

2. 8677519 - Drainage connector

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as of
12/7/2025
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