Growing community of inventors

Ikoma, Japan

Masaaki Kageyama

Average Co-Inventor Count = 8.00

ph-index = 2

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 = 31

Masaaki Kageyama ↔ Takashi Nakano (2 patents)Masaaki Kageyama ↔ Yasushi Matsumura (2 patents)Masaaki Kageyama ↔ Yoshitomi Morizawa (2 patents)Masaaki Kageyama ↔ Nobuaki Mori (2 patents)Masaaki Kageyama ↔ Tadashi Nakajima (2 patents)Masaaki Kageyama ↔ Eiichi Shirasawa (2 patents)Masaaki Kageyama ↔ Hideshi Sasakura (2 patents)Masaaki KageyamaMasaaki Kageyama (2 patents)Takashi NakanoTakashi Nakano (69 patents)Yasushi MatsumuraYasushi Matsumura (28 patents)Yoshitomi MorizawaYoshitomi Morizawa (18 patents)Nobuaki MoriNobuaki Mori (7 patents)Tadashi NakajimaTadashi Nakajima (6 patents)Eiichi ShirasawaEiichi Shirasawa (4 patents)Hideshi SasakuraHideshi Sasakura (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Asahi Glass Company, Limited (2 from 2,560 patents)

2. Santen Pharmaceutical Co., Ltd. (2 from 282 patents)


2 patents:

1. 5985920 - Difluoroprostaglandin derivatives and their use

2. 5886035 - Difluoroprostaglandin derivatives and their use

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as of
1/4/2026
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