Growing community of inventors

Chiba, Japan

Masaki Sugiyama

Average Co-Inventor Count = 7.00

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

Masaki Sugiyama ↔ Takashi Takahashi (1 patent)Masaki Sugiyama ↔ Masahiro Endo (1 patent)Masaki Sugiyama ↔ Takahito Mita (1 patent)Masaki Sugiyama ↔ Norihiro Yoshida (1 patent)Masaki Sugiyama ↔ Keisuke Matsushita (1 patent)Masaki Sugiyama ↔ Eiichi Ikawa (1 patent)Masaki SugiyamaMasaki Sugiyama (1 patent)Takashi TakahashiTakashi Takahashi (11 patents)Masahiro EndoMasahiro Endo (9 patents)Takahito MitaTakahito Mita (8 patents)Norihiro YoshidaNorihiro Yoshida (6 patents)Keisuke MatsushitaKeisuke Matsushita (3 patents)Eiichi IkawaEiichi Ikawa (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Maruzen Petrochemical Company, Limited (1 from 122 patents)


1 patent:

1. 10087265 - Method for producing dimethyl polyvinylphosphonate and polyvinylphosphonic acid

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as of
12/13/2025
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