Growing community of inventors

Fuji, Japan

Seiichi Higashiyama

Average Co-Inventor Count = 5.09

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 = 7

Seiichi HigashiyamaHiroshi Hotta (1 patent)Seiichi HigashiyamaHiroshi Nakatsuji (1 patent)Seiichi HigashiyamaTuneyasu Nakashima (1 patent)Seiichi HigashiyamaEitaro Ikegami (1 patent)Seiichi HigashiyamaHiroyasu Komazawa (1 patent)Seiichi HigashiyamaHiroyuki Miyaji (1 patent)Seiichi HigashiyamaSusumu Okushiro (1 patent)Seiichi HigashiyamaNoboru Gotoh (1 patent)Seiichi HigashiyamaKiyoshi Yoko (1 patent)Seiichi HigashiyamaSeiichi Higashiyama (2 patents)Hiroshi HottaHiroshi Hotta (5 patents)Hiroshi NakatsujiHiroshi Nakatsuji (4 patents)Tuneyasu NakashimaTuneyasu Nakashima (3 patents)Eitaro IkegamiEitaro Ikegami (2 patents)Hiroyasu KomazawaHiroyasu Komazawa (2 patents)Hiroyuki MiyajiHiroyuki Miyaji (2 patents)Susumu OkushiroSusumu Okushiro (1 patent)Noboru GotohNoboru Gotoh (1 patent)Kiyoshi YokoKiyoshi Yoko (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Polyplastics Co., Ltd. (2 from 381 patents)


2 patents:

1. 4831073 - Polyacetal composition and method of preparation thereof

2. 4540773 - Method of producing an improved polyacetal polymer

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as of
12/18/2025
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