Growing community of inventors

Osaka, Japan

Shigeru Sugiyama

Average Co-Inventor Count = 3.43

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 = 8

Shigeru Sugiyama ↔ Noboru Hoshi (1 patent)Shigeru Sugiyama ↔ Takafumi Masuda (1 patent)Shigeru Sugiyama ↔ Shoji Maekawa (1 patent)Shigeru Sugiyama ↔ Toshio Shimamoto (1 patent)Shigeru Sugiyama ↔ Shin-ichi Akiyama (1 patent)Shigeru Sugiyama ↔ Takafumi Toyo Kasei Kogyo COLTD Masuda (0 patent)Shigeru Sugiyama ↔ Shoji Toyo Kasei Kogyo Company Limited Maekawa (0 patent)Shigeru SugiyamaShigeru Sugiyama (2 patents)Noboru HoshiNoboru Hoshi (13 patents)Takafumi MasudaTakafumi Masuda (7 patents)Shoji MaekawaShoji Maekawa (7 patents)Toshio ShimamotoToshio Shimamoto (4 patents)Shin-ichi AkiyamaShin-ichi Akiyama (1 patent)Takafumi Toyo Kasei Kogyo COLTD MasudaTakafumi Toyo Kasei Kogyo COLTD Masuda (0 patent)Shoji Toyo Kasei Kogyo Company Limited MaekawaShoji Toyo Kasei Kogyo Company Limited Maekawa (0 patent)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Toyo Kasei Kogyo Company Limited (1 from 29 patents)

2. Daido Chemical Corporation (1 from 6 patents)

3. Nisshin Kasel Co., Ltd. (1 from 1 patent)


2 patents:

1. 6967026 - Hard capsule

2. 6861471 - Coating composition for polyolefin resin and process for producing the same

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as of
12/12/2025
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