Growing community of inventors

Ichihara, Japan

Hirofumi Yamada

Average Co-Inventor Count = 4.00

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 = 3

Hirofumi YamadaHidetsugu Sawada (1 patent)Hirofumi YamadaKosuke Arai (1 patent)Hirofumi YamadaYoshiaki Murata (1 patent)Hirofumi YamadaHirofumi Yamada (1 patent)Hidetsugu SawadaHidetsugu Sawada (4 patents)Kosuke AraiKosuke Arai (4 patents)Yoshiaki MurataYoshiaki Murata (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Dainippon Ink and Chemicals, Incorporated (1 from 630 patents)


1 patent:

1. 6255388 - Shrink film and method of making the same

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12/20/2025
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