Growing community of inventors

Tokyo, Japan

Masaya Oi

Average Co-Inventor Count = 6.00

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

Masaya OiHiroshi Ikeda (1 patent)Masaya OiNorio Miura (1 patent)Masaya OiKiyofumi Momma (1 patent)Masaya OiAkinori Tsuchida (1 patent)Masaya OiToshinari Araki (1 patent)Masaya OiMasaya Oi (1 patent)Hiroshi IkedaHiroshi Ikeda (17 patents)Norio MiuraNorio Miura (9 patents)Kiyofumi MommaKiyofumi Momma (1 patent)Akinori TsuchidaAkinori Tsuchida (1 patent)Toshinari ArakiToshinari Araki (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Other (1 from 832,680 patents)

2. Tokyo Gas Company Limited (1 from 193 patents)


1 patent:

1. 10105678 - Oxygen adsorbent, oxygen manufacturing equipment using the oxygen adsorbent and oxygen manufacturing method

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as of
12/6/2025
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