Growing community of inventors

Tsukuba, Japan

Keiko Koh

Average Co-Inventor Count = 6.43

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 = 3

Keiko KohMikio Taniguchi (2 patents)Keiko KohHiroyoshi Yamada (2 patents)Keiko KohKiyotaka Munesada (2 patents)Keiko KohNoriie Itoh (2 patents)Keiko KohHiroshi Kushida (2 patents)Keiko KohKazuo Tsuzuki (2 patents)Keiko KohYoshiji Fujita (2 patents)Keiko KohWilliam W McWhorter, Jr (1 patent)Keiko KohMineo Kunihara (1 patent)Keiko KohKazunori Ozawa (1 patent)Keiko KohOsamu Morita (1 patent)Keiko KohKeiko Koh (3 patents)Mikio TaniguchiMikio Taniguchi (6 patents)Hiroyoshi YamadaHiroyoshi Yamada (5 patents)Kiyotaka MunesadaKiyotaka Munesada (4 patents)Noriie ItohNoriie Itoh (4 patents)Hiroshi KushidaHiroshi Kushida (4 patents)Kazuo TsuzukiKazuo Tsuzuki (4 patents)Yoshiji FujitaYoshiji Fujita (2 patents)William W McWhorter, JrWilliam W McWhorter, Jr (13 patents)Mineo KuniharaMineo Kunihara (3 patents)Kazunori OzawaKazunori Ozawa (3 patents)Osamu MoritaOsamu Morita (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. The Upjohn Co. (1 from 2,170 patents)

2. Pharmacia & Upjohn Company (1 from 523 patents)

3. Theupjohn Company (1 from 1 patent)


3 patents:

1. 6005105 - Process for producing imidazole derivative

2. 5506361 - Imidazobenzoquinones and composition for preventing or treating

3. 5442062 - Imidazole derivatives and pharmaceutical compositions containing the same

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as of
1/2/2026
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