Growing community of inventors

Yono, Japan

Hironobu Hiraga

Average Co-Inventor Count = 4.20

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

Hironobu Hiraga ↔ Yoshihisa Umeda (2 patents)Hironobu Hiraga ↔ Takaaki Ohkuma (2 patents)Hironobu Hiraga ↔ Ikunoshin Kato (1 patent)Hironobu Hiraga ↔ Katsushige Ikai (1 patent)Hironobu Hiraga ↔ Tetsushi Saino (1 patent)Hironobu Hiraga ↔ Makoto Moriguchi (1 patent)Hironobu HiragaHironobu Hiraga (2 patents)Yoshihisa UmedaYoshihisa Umeda (11 patents)Takaaki OhkumaTakaaki Ohkuma (4 patents)Ikunoshin KatoIkunoshin Kato (210 patents)Katsushige IkaiKatsushige Ikai (34 patents)Tetsushi SainoTetsushi Saino (23 patents)Makoto MoriguchiMakoto Moriguchi (4 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Nippon Kayaku Kabushiki Kaisha (1 from 775 patents)

2. Takara Shuzo Co., Inc. (1 from 190 patents)

3. Takaru Shuzo Co., Ltd. (1 from 1 patent)


2 patents:

1. 5196453 - Crystalline deoxyspergualin, process for its preparation and suppository

2. 5162581 - Crystalline deoxyspergualin, process for its preparation and suppository

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as of
12/8/2025
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