Growing community of inventors

Niigata, Japan

Eiji Shima

Average Co-Inventor Count = 4.00

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 = 13

Eiji ShimaTetsuo Aoyama (1 patent)Eiji ShimaNaoto Sakurai (1 patent)Eiji ShimaJiro Ishikawa (1 patent)Eiji ShimaEiji Shima (1 patent)Tetsuo AoyamaTetsuo Aoyama (32 patents)Naoto SakuraiNaoto Sakurai (4 patents)Jiro IshikawaJiro Ishikawa (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Mitsubishi Gas Chemical Company, Inc. (1 from 2,245 patents)


1 patent:

1. 4776929 - Process for production of quaternary ammonium hydroxides

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12/13/2025
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