Growing community of inventors

Hitachi, Japan

Takako Oono

Average Co-Inventor Count = 5.00

ph-index = 3

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 = 17

Takako OonoTetsuya Matsui (8 patents)Takako OonoYoshiaki Ichikawa (8 patents)Takako OonoAkira Sekine (8 patents)Takako OonoKiyomi Funabashi (6 patents)Takako OonoSatoshi Ohishi (1 patent)Takako OonoHirotaka Satou (1 patent)Takako OonoTakako Oono (8 patents)Tetsuya MatsuiTetsuya Matsui (35 patents)Yoshiaki IchikawaYoshiaki Ichikawa (25 patents)Akira SekineAkira Sekine (9 patents)Kiyomi FunabashiKiyomi Funabashi (21 patents)Satoshi OhishiSatoshi Ohishi (5 patents)Hirotaka SatouHirotaka Satou (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Hitachi, Ltd. (8 from 42,508 patents)


8 patents:

1. 7536239 - Chemical substance total management system, storage medium storing chemical substance management program and chemical substance total management method

2. 7532946 - Chemical substance total management system, storage medium storing chemical substance management program and chemical substance total management method

3. 7433757 - Chemical substance total management system, storage medium storing chemical substance management program and chemical substance total management method

4. 7272465 - Chemical substance total management system, storage medium storing chemical substance management program and chemical substance total management method

5. 7092960 - Chemical material integrated management system and method thereof

6. 6980883 - Chemical substance total management system, storage medium storing chemical substance management program and chemical substance total management method

7. 6934640 - Method and system for comprehensive management of chemical materials

8. 6778877 - Chemical substance total management system, storage medium storing chemical substance management program and chemical substance total management method

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as of
12/31/2025
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