Growing community of inventors

Suita, Japan

Hirofumi Ishikawa

Average Co-Inventor Count = 9.00

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

Hirofumi IshikawaHisashi Takasugi (2 patents)Hirofumi IshikawaKiyoshi Taniguchi (2 patents)Hirofumi IshikawaNaoaki Fujii (2 patents)Hirofumi IshikawaMinoru Sakurai (2 patents)Hirofumi IshikawaYasuyo Tomishima (2 patents)Hirofumi IshikawaKumi Hosoi (2 patents)Hirofumi IshikawaHajime Sogabe (2 patents)Hirofumi IshikawaNaomi Hanioka (2 patents)Hirofumi IshikawaHirofumi Ishikawa (2 patents)Hisashi TakasugiHisashi Takasugi (137 patents)Kiyoshi TaniguchiKiyoshi Taniguchi (15 patents)Naoaki FujiiNaoaki Fujii (11 patents)Minoru SakuraiMinoru Sakurai (9 patents)Yasuyo TomishimaYasuyo Tomishima (6 patents)Kumi HosoiKumi Hosoi (2 patents)Hajime SogabeHajime Sogabe (2 patents)Naomi HaniokaNaomi Hanioka (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Fujisawa Pharmaceutical Company, Ltd. (1 from 940 patents)

2. Astellas Pharma Gmbh (1 from 417 patents)


2 patents:

1. 7217706 - Propanolamine derivatives

2. 6495546 - Propanolamine derivatives

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12/30/2025
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