Growing community of inventors

Tokyo, Japan

Shigenobu Okuda

Average Co-Inventor Count = 5.00

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 = 1

Shigenobu Okuda ↔ Masao Arakawa (1 patent)Shigenobu Okuda ↔ Fusaaki Shimizu (1 patent)Shigenobu Okuda ↔ Michio Namikoshi (1 patent)Shigenobu Okuda ↔ Shigeo Iwasaki (1 patent)Shigenobu OkudaShigenobu Okuda (1 patent)Masao ArakawaMasao Arakawa (3 patents)Fusaaki ShimizuFusaaki Shimizu (3 patents)Michio NamikoshiMichio Namikoshi (1 patent)Shigeo IwasakiShigeo Iwasaki (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

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


1 patent:

1. 4791128 - Rhizoxin esters and salts, their pharmaceutical use as anti-tumor agents

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as of
12/20/2025
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