Growing community of inventors

Tokyo, Japan

Ryuta Koishi

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 = 9

Ryuta KoishiTohru Takahashi (3 patents)Ryuta KoishiNobufusa Serizawa (3 patents)Ryuta KoishiIchiro Kawashima (3 patents)Ryuta KoishiRyuta Koishi (3 patents)Tohru TakahashiTohru Takahashi (52 patents)Nobufusa SerizawaNobufusa Serizawa (11 patents)Ichiro KawashimaIchiro Kawashima (7 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Sankyo Company, Limited (3 from 613 patents)


3 patents:

1. 6743611 - Expression systems utilizing autolyzing fusion proteins and a novel reducing polypeptide

2. 6307038 - Expression systems utilizing autolyzing fusion proteins and a novel reducing polypeptide

3. 5955072 - Expression systems utilizing autolyzing fusion proteins and a reducing

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12/28/2025
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