Growing community of inventors

Iwaki, Japan

Susumu Midorikawa, Deceased

Average Co-Inventor Count = 4.00

ph-index = 2

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 = 7

Susumu Midorikawa, Deceased ↔ Yo Iizuka (2 patents)Susumu Midorikawa, Deceased ↔ Haruhiko Yusa (1 patent)Susumu Midorikawa, Deceased ↔ Yumi Midorikawa, Heir (1 patent)Susumu Midorikawa, Deceased ↔ By Taeko Midorikawa, Heir (1 patent)Susumu Midorikawa, Deceased ↔ Kiyoshi Midorikawa, Heir (1 patent)Susumu Midorikawa, DeceasedSusumu Midorikawa, Deceased (2 patents)Yo IizukaYo Iizuka (43 patents)Haruhiko YusaHaruhiko Yusa (11 patents)Yumi Midorikawa, HeirYumi Midorikawa, Heir (1 patent)By Taeko Midorikawa, HeirBy Taeko Midorikawa, Heir (1 patent)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 (2 from 776 patents)


2 patents:

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

2. 4268636 - Vinyl chloride resin composition with processing aid

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as of
12/19/2025
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