Growing community of inventors

Tokyo, Japan

Katsuo Hatayama, Deceased

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 = 1

Katsuo Hatayama, Deceased ↔ Atsuro Nakazato (1 patent)Katsuo Hatayama, Deceased ↔ Toshihito Kumagai (1 patent)Katsuo Hatayama, Deceased ↔ Yutaka Kawashima (1 patent)Katsuo Hatayama, Deceased ↔ Koumei Ohta (1 patent)Katsuo Hatayama, Deceased ↔ Tomoki Miyazawa (1 patent)Katsuo Hatayama, DeceasedKatsuo Hatayama, Deceased (1 patent)Atsuro NakazatoAtsuro Nakazato (43 patents)Toshihito KumagaiToshihito Kumagai (24 patents)Yutaka KawashimaYutaka Kawashima (13 patents)Koumei OhtaKoumei Ohta (3 patents)Tomoki MiyazawaTomoki Miyazawa (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Taisho Pharmaceutical Co., Ltd. (1 from 314 patents)


1 patent:

1. 5990151 - Optically active substituted phenylalkylamine derivatives

Please report any incorrect information to support@idiyas.com
idiyas.com
as of
1/8/2026
Loading…