RO

Ryouhei Oka

DC Dnp Fine Chemicals Co.: 2 patents #11 of 43Top 30%
Overall (All Time): #1,720,711 of 4,157,543Top 45%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
12338356 Nonaqueous ink composition, and recording method and recorded matter manufacturing method using same Keishiro Yoshimori, Yuka ORIKASA, Kisei Matsumoto, Koujun Utaka, Mitsuyoshi Tamura +2 more 2025-06-24
12104068 Non-aqueous ink composition, inkjet recording method, and method for manufacturing printed matter Yoshiya Maegawa, Keita Yoshiyuki, Karuna IWASAWA, Yuka ORIKASA, Keishiro Yoshimori 2024-10-01