Growing community of inventors

Tokyo, Japan

Eichi Soma

Average Co-Inventor Count = 5.00

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 = 26

Eichi Soma ↔ Kohei Kobayashi (2 patents)Eichi Soma ↔ Kiichi Uchida (2 patents)Eichi Soma ↔ Takuro Karakawa (2 patents)Eichi Soma ↔ Shigeyoshi Kato (2 patents)Eichi SomaEichi Soma (2 patents)Kohei KobayashiKohei Kobayashi (36 patents)Kiichi UchidaKiichi Uchida (5 patents)Takuro KarakawaTakuro Karakawa (3 patents)Shigeyoshi KatoShigeyoshi Kato (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Daicel Chemical Industries, Ltd. (2 from 1,165 patents)

2. Sapporo Breweries Limited (2 from 113 patents)

3. Other (1 from 832,891 patents)

4. Etsuo Ito (1 from 2 patents)


2 patents:

1. 4366308 - Process for the production of polysaccharide RBS substance

2. 4357323 - Polysaccharide RBS substance and antitumor agent containing same

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