Growing community of inventors

Ibaraki, Japan

Tooru Kawashima

Average Co-Inventor Count = 3.00

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 = 0

Tooru KawashimaKeiji Yamamoto (1 patent)Tooru KawashimaYoshimi Yusa (1 patent)Tooru KawashimaTooru Kawashima (1 patent)Keiji YamamotoKeiji Yamamoto (5 patents)Yoshimi YusaYoshimi Yusa (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Nitto-denko Corporation (1 from 3,868 patents)


1 patent:

1. 8506992 - Percutaneous absorption-type pharmaceutical preparations

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as of
12/6/2025
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