Patents/Inventors

Koichiro Oyama

KanagawaJP1 patent

2 Patents

US123447562025
Liquid Composition, Method of Applying Liquid, Device for Applying Liquid, Pre-processing Fluid, and Set of Pre-processing Fluid and Ink
Ricoh Company, Ltd.
0 cites
US117608932023
Ink, Image Forming Apparatus, and Image Forming Method
Ricoh Company, Ltd.
0 cites