Growing community of inventors

Beijing, China

Er-chang Rao

Average Co-Inventor Count = 10.00

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 = 10

Er-chang RaoYan Li (1 patent)Er-chang RaoKatsuo Hatayama (1 patent)Er-chang RaoLiang Huang (1 patent)Er-chang RaoKensei Yoshikawa (1 patent)Er-chang RaoGeng-tao Liu (1 patent)Er-chang RaoTatsuhiko Sano (1 patent)Er-chang RaoIwao Arai (1 patent)Er-chang RaoShohei Higuchi (1 patent)Er-chang RaoJin Zhou (1 patent)Er-chang RaoEr-chang Rao (1 patent)Yan LiYan Li (287 patents)Katsuo HatayamaKatsuo Hatayama (38 patents)Liang HuangLiang Huang (12 patents)Kensei YoshikawaKensei Yoshikawa (10 patents)Geng-tao LiuGeng-tao Liu (8 patents)Tatsuhiko SanoTatsuhiko Sano (7 patents)Iwao AraiIwao Arai (3 patents)Shohei HiguchiShohei Higuchi (1 patent)Jin ZhouJin Zhou (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

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

2. Chinese Academy of Medical Sciences (1 from 117 patents)


1 patent:

1. 4937360 - N-substituted amide derivatives useful for treating liver diseases

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1/8/2026
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