Growing community of inventors

Saitama, Japan

Junko Usui

Average Co-Inventor Count = 14.01

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 = 0

Junko Usui ↔ Hiroshi Kitagawa (1 patent)Junko Usui ↔ Hiroshi Okazaki (1 patent)Junko Usui ↔ Hans G Berscheid (1 patent)Junko Usui ↔ Hiroshi Watanabe (1 patent)Junko Usui ↔ Etsuko Ohkouchi (1 patent)Junko Usui ↔ Hitoko Numata (1 patent)Junko Usui ↔ Shunji Senda (1 patent)Junko Usui ↔ Akihiko Matsuo (1 patent)Junko Usui ↔ Toshiro Iwahashi (1 patent)Junko Usui ↔ Itsuo Kurobane (1 patent)Junko Usui ↔ Yukiko Tone (1 patent)Junko Usui ↔ Akio Fukuda (1 patent)Junko Usui ↔ Isamu Sugawara (1 patent)Junko UsuiJunko Usui (1 patent)Hiroshi KitagawaHiroshi Kitagawa (51 patents)Hiroshi OkazakiHiroshi Okazaki (14 patents)Hans G BerscheidHans G Berscheid (8 patents)Hiroshi WatanabeHiroshi Watanabe (5 patents)Etsuko OhkouchiEtsuko Ohkouchi (1 patent)Hitoko NumataHitoko Numata (1 patent)Shunji SendaShunji Senda (1 patent)Akihiko MatsuoAkihiko Matsuo (1 patent)Toshiro IwahashiToshiro Iwahashi (1 patent)Itsuo KurobaneItsuo Kurobane (1 patent)Yukiko ToneYukiko Tone (1 patent)Akio FukudaAkio Fukuda (1 patent)Isamu SugawaraIsamu Sugawara (1 patent)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Hoechst Japan Limited (1 from 66 patents)


1 patent:

1. 5028698 - Cytorhodin S derivatives and a process for their preparation

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12/7/2025
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