KM

Keiko Maruyama

Ricoh Company: 1 patents #173 of 689Top 30%
📍 Rifu, JP: #85 of 257 inventorsTop 35%
Overall (2025): #318,690 of 469,880Top 70%
1
Patents 2025

Issued Patents 2025

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
12291031 Liquid discharge head and liquid discharge apparatus Shusei Murai, Tatsumi Suzuki, Satoshi Kudoh, Hiroyasu Umehara 2025-05-06