Growing community of inventors

Hiroshima, Japan

Katsuhisa Sakai

Average Co-Inventor Count = 2.00

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 = 22

Katsuhisa SakaiHiroyuki Oshima (2 patents)Katsuhisa SakaiTakaaki Murai (1 patent)Katsuhisa SakaiKatsuhisa Sakai (3 patents)Hiroyuki OshimaHiroyuki Oshima (3 patents)Takaaki MuraiTakaaki Murai (13 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Daicel Chemical Industries, Ltd. (3 from 1,165 patents)


3 patents:

1. 5140091 - Compositions of polyether compounds, epoxy compounds and processes for

2. 5122586 - Compositions of polyether compounds, epoxy compounds and processes for

3. 4841017 - Polyether compounds, epoxy resins and processes for production thereof

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as of
12/18/2025
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