Growing community of inventors

Tokyo, Japan

Hirotoshi Kitagawa

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 = 21

Hirotoshi Kitagawa ↔ Hiroyuki Taketomi (1 patent)Hirotoshi KitagawaHirotoshi Kitagawa (1 patent)Hiroyuki TaketomiHiroyuki Taketomi (4 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Hisamitsu Pharmaceutical Company, Inc. (1 from 375 patents)


1 patent:

1. D603258 - Package

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as of
12/19/2025
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