Growing community of inventors

Fujimi, Japan

Natsuyo Kumai

Average Co-Inventor Count = 9.00

ph-index = 2

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 = 32

Natsuyo KumaiMasao Ohkuchi (3 patents)Natsuyo KumaiTomoyuki Koshi (3 patents)Natsuyo KumaiTadaaki Ohgiya (2 patents)Natsuyo KumaiYoshinori Kyotani (2 patents)Natsuyo KumaiTakayuki Matsuda (2 patents)Natsuyo KumaiHiromichi Shigyo (2 patents)Natsuyo KumaiKyoko Kotaki (2 patents)Natsuyo KumaiMasahiro Tamura (1 patent)Natsuyo KumaiSeiichi Sato (1 patent)Natsuyo KumaiYukiyoshi Yamazaki (1 patent)Natsuyo KumaiTakahiro Kitamura (1 patent)Natsuyo KumaiHideo Yoshizaki (1 patent)Natsuyo KumaiToshimi Mizoguchi (1 patent)Natsuyo KumaiKyoko Yasuoka (1 patent)Natsuyo KumaiJunko Totsuka (1 patent)Natsuyo KumaiYuriko Habata (1 patent)Natsuyo KumaiNatsuyo Kumai (3 patents)Masao OhkuchiMasao Ohkuchi (15 patents)Tomoyuki KoshiTomoyuki Koshi (11 patents)Tadaaki OhgiyaTadaaki Ohgiya (32 patents)Yoshinori KyotaniYoshinori Kyotani (27 patents)Takayuki MatsudaTakayuki Matsuda (17 patents)Hiromichi ShigyoHiromichi Shigyo (16 patents)Kyoko KotakiKyoko Kotaki (3 patents)Masahiro TamuraMasahiro Tamura (115 patents)Seiichi SatoSeiichi Sato (52 patents)Yukiyoshi YamazakiYukiyoshi Yamazaki (23 patents)Takahiro KitamuraTakahiro Kitamura (21 patents)Hideo YoshizakiHideo Yoshizaki (11 patents)Toshimi MizoguchiToshimi Mizoguchi (9 patents)Kyoko YasuokaKyoko Yasuoka (7 patents)Junko TotsukaJunko Totsuka (5 patents)Yuriko HabataYuriko Habata (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Kowa Company Limited (3 from 589 patents)


3 patents:

1. 7314877 - Benzofuran derivative

2. 6664256 - Phenylpyridazine compounds and medicines containing the same

3. 6348468 - Pyridazine compounds and compositions containing the same

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as of
12/4/2025
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