YK

Yoshihito KOYAMA

IC Idemitsu Kosan Co.: 1 patents #45 of 106Top 45%
Overall (2025): #160,710 of 469,880Top 35%
1
Patents 2025

Issued Patents 2025

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
12325775 Method for producing polyphenol derivative, polyphenol derivative, and polyphenol derivative-containing resin composition material Hironori Tashiro 2025-06-10