Growing community of inventors

Ushiku, Japan

Yoichi Koiwa

Average Co-Inventor Count = 6.00

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 = 9

Yoichi Koiwa ↔ Shigenori Ohta (1 patent)Yoichi Koiwa ↔ Makoto Egi (1 patent)Yoichi Koiwa ↔ Nobuo Ogata (1 patent)Yoichi Koiwa ↔ Hideo Muromachi (1 patent)Yoichi Koiwa ↔ Nobuko Yoshida (1 patent)Yoichi KoiwaYoichi Koiwa (1 patent)Shigenori OhtaShigenori Ohta (9 patents)Makoto EgiMakoto Egi (6 patents)Nobuo OgataNobuo Ogata (5 patents)Hideo MuromachiHideo Muromachi (2 patents)Nobuko YoshidaNobuko Yoshida (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Kyowa Hakko Kogyo Co., Ltd. (1 from 730 patents)


1 patent:

1. 5520933 - Method for the production of foods and beverages

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as of
12/28/2025
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