TW

Tadayuki Wakatabi

RK Riso Kagaku: 12 patents #34 of 551Top 7%
📍 Ibaraki, JP: #845 of 6,779 inventorsTop 15%
Overall (All Time): #418,814 of 4,157,543Top 15%
12
Patents All Time

Issued Patents All Time

Showing 1–12 of 12 patents

Patent #TitleCo-InventorsDate
9833965 Sealed letter producing device and envelope sheet Yasuhiro Katada 2017-12-05
9296520 Envelope sheet 2016-03-29
9283803 Sealed letter forming apparatus Akiko NOZAWA, Yoshihiro Noguchi 2016-03-15
9139338 Envelope sheet Akinori Maekawa 2015-09-22
D685417 Paper for envelope 2013-07-02
7428073 Post card making device Kouki Mitani 2008-09-23
7066086 Stencil printer Toshihiro Endo, Yasuo Yamamoto 2006-06-27
D523074 Combined printer and scanner Kouki Mitani 2006-06-13
D514583 Tray for a scanner Kouki Mitani 2006-02-07
D509831 Display panel portion for a printer Kouki Mitani 2005-09-20
D506610 Case Kouki Mitani 2005-06-28
D502499 Paper receiving tray Kouki Mitani 2005-03-01