Growing community of inventors

Tokyo, Japan

Keiko Otsuka

Average Co-Inventor Count = 7.00

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 = 0

Keiko Otsuka ↔ Takahisa Suzuki (1 patent)Keiko Otsuka ↔ Jiro Tanaka (1 patent)Keiko Otsuka ↔ Hiroshi Nagaso (1 patent)Keiko Otsuka ↔ Fukuichi Ohsawa (1 patent)Keiko Otsuka ↔ Takafumi Okutomi (1 patent)Keiko Otsuka ↔ Masashi Kumagai (1 patent)Keiko OtsukaKeiko Otsuka (1 patent)Takahisa SuzukiTakahisa Suzuki (111 patents)Jiro TanakaJiro Tanaka (2 patents)Hiroshi NagasoHiroshi Nagaso (2 patents)Fukuichi OhsawaFukuichi Ohsawa (2 patents)Takafumi OkutomiTakafumi Okutomi (1 patent)Masashi KumagaiMasashi Kumagai (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Meiji Seika Kaisha, Ltd. (1 from 382 patents)


1 patent:

1. 8084044 - [object Object]

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as of
12/28/2025
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