Inventor
TAMAHASHI KUNIHIRO
JP17 patents
⚠️ This page may combine multiple inventors who share the name “TAMAHASHI KUNIHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
9 patentsUS5204202AApr 20, 1993
Electrophotographic photosensitive element comprising a protective layer with a porous surface impregnated with lubricant
HITACHI LTD24 citations90
US5252418AOct 12, 1993
Electrophotographic photoreceptor with protruding inorganic insulator pieces and an electrophotographic apparatus utilizing the same
HITACHI LTD20 citations82
US5110792AMay 5, 1992
Method and apparatus of optical modulation using superconductive oxide material
HITACHI LTD16 citations74
US5073466ADec 17, 1991
Electrophotographic member containing a fluorine-containing lubricating agent and process for producing the same
HITACHI LTD12 citations72
US4804606AFeb 14, 1989
Electrophotographic sensitized body having a diffusion blocking layer
HITACHI LTD7 citations72
US4430404AFeb 7, 1984
Electrophotographic photosensitive material having thin amorphous silicon protective layer
HITACHI LTD8 citations72
US4405703ASep 20, 1983
Electrophotographic plate having an age-hardened aluminum substrate and process for producing the same
HITACHI LTD7 citations72
US4791040ADec 13, 1988
Multilayered electrophotographic photosensitive member
HITACHI LTD0 citations48
US4912008AMar 27, 1990
Method of annealing electrophotographic photosensitive device
HITACHI LTD0 citations46
RICOH PRINTING SYS LTD
4 patentsUS7104773B2Sep 12, 2006
Three-dimensional laminating molding device
RICOH PRINTING SYS LTD20 citations92
US7290873B2Nov 6, 2007
Ink jet recording method
RICOH PRINTING SYS LTD2 citations62
US6918180B2Jul 19, 2005
Method of manufacturing ink jet head
RICOH PRINTING SYS LTD5 citations62
US7325902B2Feb 5, 2008
Ink-jet printer head and a manufacturing method thereof
RICOH PRINTING SYS LTD1 citations51