Growing community of inventors

Otsu, Japan

Hiroshi Nishikawa

Average Co-Inventor Count = 2.00

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 = 12

Hiroshi NishikawaMasao Umezawa (1 patent)Hiroshi NishikawaHiroshi Nishikawa (1 patent)Masao UmezawaMasao Umezawa (13 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Du Pont Toray Company Limited (1 from 32 patents)


1 patent:

1. 6639041 - Spandex having low set at low temperatures

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as of
12/20/2025
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