Growing community of inventors

Osaka, Japan

Hirohsi Nishikawa

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 = 19

Hirohsi Nishikawa ↔ Shigeyoshi Fujita (1 patent)Hirohsi Nishikawa ↔ Kazuyoshi Fukuhara (1 patent)Hirohsi Nishikawa ↔ Tomoyuki Saski (1 patent)Hirohsi NishikawaHirohsi Nishikawa (1 patent)Shigeyoshi FujitaShigeyoshi Fujita (7 patents)Kazuyoshi FukuharaKazuyoshi Fukuhara (5 patents)Tomoyuki SaskiTomoyuki Saski (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Daifuku Co., Ltd. (1 from 708 patents)


1 patent:

1. 4671183 - Cart type conveying apparatus

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12/20/2025
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