Growing community of inventors

Shizuoka, Japan

Yoshihiro Ichikawa

Average Co-Inventor Count = 6.00

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 = 2

Yoshihiro Ichikawa ↔ Jun Nakano (2 patents)Yoshihiro Ichikawa ↔ Tsutomu Nakamura (2 patents)Yoshihiro Ichikawa ↔ Tokiko Nishida (2 patents)Yoshihiro Ichikawa ↔ Mitsuru Watanuki (2 patents)Yoshihiro Ichikawa ↔ Masahiro Suda (2 patents)Yoshihiro IchikawaYoshihiro Ichikawa (2 patents)Jun NakanoJun Nakano (13 patents)Tsutomu NakamuraTsutomu Nakamura (13 patents)Tokiko NishidaTokiko Nishida (6 patents)Mitsuru WatanukiMitsuru Watanuki (4 patents)Masahiro SudaMasahiro Suda (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Kaken Pharmaceutical Company, Ltd. (2 from 136 patents)


2 patents:

1. 6376671 - 2-sulfamoylbenzoic acid derivatives

2. 6255321 - 2-sulfamoylbenzoic acid derivatives

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as of
1/7/2026
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