HN

Haruhiko Nagayama

Ricoh Company: 8 patents #2,692 of 9,818Top 30%
Overall (All Time): #671,217 of 4,157,543Top 20%
8
Patents All Time

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
4872091 Memory cartridge Yoshio Maniwa, Takashi Morita, Masaichi Niro, Daisuke Abe 1989-10-03
4674858 Photoconductive element unit for laser printer or the like 1987-06-23
4575219 Dry process developing apparatus having detachable screening member for developing unit Satoru Tomita 1986-03-11
4547059 Image-transfer-type electrostatic recording apparatus Satoru Tomita 1985-10-15
4483607 Recording system 1984-11-20
4364059 Ink jet printing apparatus 1982-12-14
4346389 Multiple charge electrode device for liquid jet printer 1982-08-24
4338612 Multiple deflection plate device for liquid jet printer or the like 1982-07-06