Growing community of inventors

Sendai, Japan

Katsuo Kumagai

Average Co-Inventor Count = 3.71

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 = 5

Katsuo KumagaiKen-ichi Komine (2 patents)Katsuo KumagaiKenzo Kai (2 patents)Katsuo KumagaiEiji Nemoto (1 patent)Katsuo KumagaiKeiji Tamura (1 patent)Katsuo KumagaiTokio Onta (1 patent)Katsuo KumagaiShunji Sugawara (1 patent)Katsuo KumagaiHidemi Rikiishi (1 patent)Katsuo KumagaiShigefumi Okamoto (1 patent)Katsuo KumagaiKen-Ichi Komine (1 patent)Katsuo KumagaiKatsuo Kumagai (3 patents)Ken-ichi KomineKen-ichi Komine (2 patents)Kenzo KaiKenzo Kai (2 patents)Eiji NemotoEiji Nemoto (11 patents)Keiji TamuraKeiji Tamura (2 patents)Tokio OntaTokio Onta (1 patent)Shunji SugawaraShunji Sugawara (1 patent)Hidemi RikiishiHidemi Rikiishi (1 patent)Shigefumi OkamotoShigefumi Okamoto (1 patent)Ken-Ichi KomineKen-Ichi Komine (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Kyoritsu Seiyaku Corporation (2 from 10 patents)

2. Kabushiki Kaisha Saikin Kagaku Kenkyujo (1 from 2 patents)

3. T-cell Research Institute (0 patent)


3 patents:

1. 7235528 - Immunopotentiator for mammary gland of dairy cows containing lactoferrin as an active ingredient

2. 6872709 - Therapeutic agent for mastitis of livestock and method for treating mastitis using the same agent

3. 5559211 - Biologically active product produced by streptococcus pyogenes and

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as of
12/15/2025
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