Growing community of inventors

Fukuoka, Japan

Yasuo Hirakawa

Average Co-Inventor Count = 5.00

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 = 10

Yasuo Hirakawa ↔ Haruyuki Ito (1 patent)Yasuo Hirakawa ↔ Masanobu Hisaeda (1 patent)Yasuo Hirakawa ↔ Toshiaki Sasaki (1 patent)Yasuo Hirakawa ↔ Mitsuru Ida (1 patent)Yasuo HirakawaYasuo Hirakawa (1 patent)Haruyuki ItoHaruyuki Ito (10 patents)Masanobu HisaedaMasanobu Hisaeda (3 patents)Toshiaki SasakiToshiaki Sasaki (1 patent)Mitsuru IdaMitsuru Ida (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Toto Ltd. (1 from 1,190 patents)


1 patent:

1. 5120211 - Slip casting device

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as of
12/8/2025
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