Growing community of inventors

Yokohama, Japan

Toshio Hirasaka

Average Co-Inventor Count = 3.00

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

Toshio HirasakaKanji Majima (1 patent)Toshio HirasakaKeiichi Tsuto (1 patent)Toshio HirasakaToshio Hirasaka (1 patent)Kanji MajimaKanji Majima (6 patents)Keiichi TsutoKeiichi Tsuto (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Kao Soap Company, Ltd. (1 from 341 patents)


1 patent:

1. 4072470 - Gas feeder for sulfonation apparatus

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1/7/2026
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