Growing community of inventors

Shizuoka-ken, Japan

Tatsuo Sugiyama

Average Co-Inventor Count = 1.33

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 = 4

Tatsuo SugiyamaTadashi Nakayama (2 patents)Tatsuo SugiyamaTatsuo Sugiyama (4 patents)Tadashi NakayamaTadashi Nakayama (14 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Ihara Chemical Industry Co., Ltd. (4 from 211 patents)


4 patents:

1. 5883285 - Process for production of thioaryl compound

2. 5750763 - Process for production of thioaryl compound

3. 5739329 - Process for producing hexahydropyridazine and

4. 5210303 - Process for producing benzylamines

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as of
12/8/2025
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