Growing community of inventors

Shinjuku-Ku, Japan

Chizuko Ohshina

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 = 44

Chizuko OhshinaKiyoshi Oguchi (2 patents)Chizuko OhshinaYuichi Kinoshita (2 patents)Chizuko OhshinaMasaho Hayashi (1 patent)Chizuko OhshinaFumio Tanaka (1 patent)Chizuko OhshinaHiroshi Yamada (1 patent)Chizuko OhshinaMutsumi Shibuya (1 patent)Chizuko OhshinaChie Shibuya (1 patent)Chizuko OhshinaYoshiharu Inoue (1 patent)Chizuko OhshinaChizuko Ohshina (2 patents)Kiyoshi OguchiKiyoshi Oguchi (16 patents)Yuichi KinoshitaYuichi Kinoshita (2 patents)Masaho HayashiMasaho Hayashi (26 patents)Fumio TanakaFumio Tanaka (15 patents)Hiroshi YamadaHiroshi Yamada (12 patents)Mutsumi ShibuyaMutsumi Shibuya (9 patents)Chie ShibuyaChie Shibuya (1 patent)Yoshiharu InoueYoshiharu Inoue (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Showa Yakuhin Kako Co., Ltd. (2 from 28 patents)


2 patents:

1. 5955352 - Instruments for chemical and microbiological tests

2. 5728350 - Chemical or microbiological test kit

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as of
12/7/2025
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