Growing community of inventors

Sendai, Japan

Keiji Tamura

Average Co-Inventor Count = 5.83

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 = 5

Keiji TamuraNakao Ishida (1 patent)Keiji TamuraEiji Nemoto (1 patent)Keiji TamuraKatsuo Kumagai (1 patent)Keiji TamuraFumio Kitame (1 patent)Keiji TamuraYoshiji Matsuda (1 patent)Keiji TamuraHidemi Rikiishi (1 patent)Keiji TamuraShigefumi Okamoto (1 patent)Keiji TamuraHiroaki Motoki (1 patent)Keiji TamuraShunji Sugawara (1 patent)Keiji TamuraTokio Onta (1 patent)Keiji TamuraKeiji Tamura (2 patents)Nakao IshidaNakao Ishida (14 patents)Eiji NemotoEiji Nemoto (11 patents)Katsuo KumagaiKatsuo Kumagai (3 patents)Fumio KitameFumio Kitame (2 patents)Yoshiji MatsudaYoshiji Matsuda (1 patent)Hidemi RikiishiHidemi Rikiishi (1 patent)Shigefumi OkamotoShigefumi Okamoto (1 patent)Hiroaki MotokiHiroaki Motoki (1 patent)Shunji SugawaraShunji Sugawara (1 patent)Tokio OntaTokio Onta (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

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

2. Kabushiki Kaisha Kayaku Kosei Bushitsu Kenkyujo (1 from 1 patent)


2 patents:

1. 5559211 - Biologically active product produced by streptococcus pyogenes and

2. 4269765 - Immune serum for diagnosis of cancer and preparation thereof

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1/7/2026
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