Growing community of inventors

Ohtsu, Japan

Yukio Hirai

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 = 1

Yukio HiraiShuzo Kawamura (1 patent)Yukio HiraiYukio Hirai (1 patent)Shuzo KawamuraShuzo Kawamura (10 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Murata Kikai Kabushiki Kaisha (1 from 903 patents)


1 patent:

1. 4880174 - Package support apparatus for automatic winder

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12/15/2025
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