Growing community of inventors

Yokosuka, Japan

Masaoki Koyama

Average Co-Inventor Count = 4.00

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 = 14

Masaoki Koyama ↔ Tomonari Watanabe (1 patent)Masaoki Koyama ↔ Kenzou Kawai (1 patent)Masaoki Koyama ↔ Motoyoshi Mori (1 patent)Masaoki KoyamaMasaoki Koyama (1 patent)Tomonari WatanabeTomonari Watanabe (9 patents)Kenzou KawaiKenzou Kawai (2 patents)Motoyoshi MoriMotoyoshi Mori (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Asahi Kasei Kogyo Kabushiki Kaisha (1 from 1,297 patents)


1 patent:

1. 5436399 - Thermoplastic polyurethane derived from polytetramethylene carbonate diol

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as of
12/20/2025
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