KM

Keiichi Matsukawa

RK Riso Kagaku: 2 patents #230 of 551Top 45%
📍 Tsukuba, JP: #1,315 of 2,818 inventorsTop 50%
Overall (All Time): #1,938,420 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10301140 Printer Tsuyoshi Iwano, Masaru Ohmori, Yasuko Yamamoto, Masahiro Kato 2019-05-28
6281645 Motor control system and image forming apparatus using the same 2001-08-28