Growing community of inventors

Fukushima-ken, Japan

Mitsumasa Hashimoto

Average Co-Inventor Count = 4.50

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 = 14

Mitsumasa Hashimoto ↔ Minoru Takeuchi (3 patents)Mitsumasa Hashimoto ↔ Kiyohiko Takemoto (2 patents)Mitsumasa Hashimoto ↔ Shuichi Kataoka (2 patents)Mitsumasa Hashimoto ↔ Ikuo Hayashi (1 patent)Mitsumasa Hashimoto ↔ Tadashi Kato (1 patent)Mitsumasa Hashimoto ↔ Tadao Endo (1 patent)Mitsumasa Hashimoto ↔ Yasuhiro Fujita (1 patent)Mitsumasa HashimotoMitsumasa Hashimoto (3 patents)Minoru TakeuchiMinoru Takeuchi (22 patents)Kiyohiko TakemotoKiyohiko Takemoto (88 patents)Shuichi KataokaShuichi Kataoka (18 patents)Ikuo HayashiIkuo Hayashi (7 patents)Tadashi KatoTadashi Kato (4 patents)Tadao EndoTadao Endo (3 patents)Yasuhiro FujitaYasuhiro Fujita (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Nitto Boseki Co., Ltd. (2 from 266 patents)

2. Seiko Epson Corporation (1 from 33,418 patents)


3 patents:

1. 7964655 - Liquid composition

2. 7547747 - Modified polyallylamine and process for producing the same

3. 6787587 - Process for the production of low-molecular-weight allylamine polymer or addition salt thereof

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as of
12/15/2025
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