Growing community of inventors

Zama, Japan

Junichi Ohya

Average Co-Inventor Count = 4.29

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 = 2

Junichi OhyaYoshiharu Morita (4 patents)Junichi OhyaTadashi Shirasaka (4 patents)Junichi OhyaKazuo Wagatsuma (3 patents)Junichi OhyaKenzo Omata (3 patents)Junichi OhyaJunichi Ohya (4 patents)Yoshiharu MoritaYoshiharu Morita (20 patents)Tadashi ShirasakaTadashi Shirasaka (11 patents)Kazuo WagatsumaKazuo Wagatsuma (5 patents)Kenzo OmataKenzo Omata (3 patents)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Mitsubishi Chemical Industries Limited (4 from 614 patents)


4 patents:

1. 4220587 - Amino acid derivatives of 6-(2-amino-2-arylacetamido)penicillanic acids

2. 4179437 - Amino acid derivatives of 6-(2-amino-2-arylacetamido) penicillanic acids

3. 4164577 - 6-(2-Acylamino-2-arylacetamido)penicillanic acids

4. 4111932 - Amino acid derivatives of 6-(2-amino-2-arylacetamido)penicillanic acids

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as of
1/12/2026
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