Growing community of inventors

Tokyo, Japan

Yasuo Toyama

Average Co-Inventor Count = 3.00

ph-index = 3

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 = 30

Yasuo ToyamaToshinori Sakagami (2 patents)Yasuo ToyamaTakumi Miyachi (2 patents)Yasuo ToyamaHisaharu Ito (2 patents)Yasuo ToyamaTakumi, Miyachi (1 patent)Yasuo ToyamaYasuo Toyama (3 patents)Toshinori SakagamiToshinori Sakagami (10 patents)Takumi MiyachiTakumi Miyachi (6 patents)Hisaharu ItoHisaharu Ito (2 patents)Takumi, MiyachiTakumi, Miyachi (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Shell Internationale Research Maatschappij, B.v. (2 from 154 patents)

2. Japan Synthetic Rubber Co., Ltd. (1 from 377 patents)


3 patents:

1. 5104938 - Thermoplastic polymer composition

2. 5093430 - Block copolymer compositions and process for the preparation thereof

3. 5089550 - Block copolymer composition

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as of
12/17/2025
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