Growing community of inventors

Tokyo, Japan

Koh Nagasawa

Average Co-Inventor Count = 8.57

ph-index = 3

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 = 19

Koh NagasawaKenichi Tanaka (67 patents)Koh NagasawaKenichi Tanaka (4 patents)Koh NagasawaHirobumi Takahashi (4 patents)Koh NagasawaKeita Nagai (4 patents)Koh NagasawaMotoaki Baba (4 patents)Koh NagasawaShinichi Fujioka (4 patents)Koh NagasawaEri Kondoh (4 patents)Koh NagasawaYoshiki Itoh (4 patents)Koh NagasawaSachie Sogo (2 patents)Koh NagasawaHiroaki Kimura (1 patent)Koh NagasawaYoshimi Niwano (1 patent)Koh NagasawaRyoichi Fukumoto (1 patent)Koh NagasawaHiroyuki Kusakabe (1 patent)Koh NagasawaChong Chu (1 patent)Koh NagasawaSatoshi Yanagihara (1 patent)Koh NagasawaChisato Hirosawa (1 patent)Koh NagasawaSeiji Ishiduka (1 patent)Koh NagasawaKoh Nagasawa (5 patents)Kenichi TanakaKenichi Tanaka (67 patents)Kenichi TanakaKenichi Tanaka (44 patents)Hirobumi TakahashiHirobumi Takahashi (15 patents)Keita NagaiKeita Nagai (5 patents)Motoaki BabaMotoaki Baba (4 patents)Shinichi FujiokaShinichi Fujioka (4 patents)Eri KondohEri Kondoh (4 patents)Yoshiki ItohYoshiki Itoh (4 patents)Sachie SogoSachie Sogo (2 patents)Hiroaki KimuraHiroaki Kimura (45 patents)Yoshimi NiwanoYoshimi Niwano (13 patents)Ryoichi FukumotoRyoichi Fukumoto (2 patents)Hiroyuki KusakabeHiroyuki Kusakabe (2 patents)Chong ChuChong Chu (2 patents)Satoshi YanagiharaSatoshi Yanagihara (2 patents)Chisato HirosawaChisato Hirosawa (2 patents)Seiji IshidukaSeiji Ishiduka (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Sato Pharmaceutical Co., Ltd. (4 from 18 patents)

2. Salo Pharmaceutical Co., Ltd. (1 from 1 patent)


5 patents:

1. 9650380 - Difluoromethylene compound

2. 9512119 - Difluoromethylene compound

3. 9359350 - Ring-fused compound

4. 8987473 - Ring-fused compound

5. 7223773 - 4-oxoquinolizine antibacterial agent having 2-pyridone skeleton as partial structure

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as of
12/5/2025
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