Growing community of inventors

Iwaki, Japan

Yumi Midorikawa, Heir

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 = 3

Yumi Midorikawa, Heir ↔ Yo Iizuka (1 patent)Yumi Midorikawa, Heir ↔ Susumu Midorikawa, Deceased (1 patent)Yumi Midorikawa, Heir ↔ Kiyoshi Midorikawa, Heir (1 patent)Yumi Midorikawa, HeirYumi Midorikawa, Heir (1 patent)Yo IizukaYo Iizuka (43 patents)Susumu Midorikawa, DeceasedSusumu Midorikawa, Deceased (2 patents)Kiyoshi Midorikawa, HeirKiyoshi Midorikawa, Heir (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Kureha Kagaku Kogyo Kabushiki Kaisha (1 from 776 patents)


1 patent:

1. 4277573 - Vinyl chloride resin and alkyl methacrylate resin processing aid

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as of
12/20/2025
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