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Toyonaka, Japan

Tadashi Katayama

Average Co-Inventor Count = 4.00

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 = 2

Tadashi KatayamaYuzuru Sanemitsu (5 patents)Tadashi KatayamaShinichi Kawamura (5 patents)Tadashi KatayamaYoko Mine (5 patents)Tadashi KatayamaTadashi Katayama (5 patents)Yuzuru SanemitsuYuzuru Sanemitsu (42 patents)Shinichi KawamuraShinichi Kawamura (20 patents)Yoko MineYoko Mine (5 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Sumitomo Chemical Company, Limited (5 from 6,892 patents)


5 patents:

1. 6869913 - Pyridazin-3-one derivatives, their use and intermediates for their production

2. 6703503 - Pyridazin-3-one derivatives, their use, and intermediates for their production

3. 6482773 - Pyridazin-3-one derivatives, their use, and intermediates for their production

4. 6348628 - Pyridazin-3-one derivatives, their use, and intermediates for their production

5. 6090753 - Pyridazin-3-one derivatives, their use, and intermediates for their

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as of
12/8/2025
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