Inventor
MATSUSHIRO HIROYUKI
JP15 patents
⚠️ This page may combine multiple inventors who share the name “MATSUSHIRO HIROYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RICOH KK
11 patentsUS6163669ADec 19, 2000
Image forming apparatus
RICOH KK117 citations98
US5565973AOct 15, 1996
Rotary developing device for an image forming apparatus
RICOH KK106 citations97
US5887228AMar 23, 1999
Color image forming apparatus including process cartridge
RICOH KK55 citations96
US4835565AMay 30, 1989
Image developing device for electrophotography
RICOH KK153 citations96
US5655193AAug 5, 1997
Developing device for image forming apparatus with toner recirculation operation
RICOH KK60 citations95
US5797069AAug 18, 1998
Developing device for image forming apparatus
RICOH KK43 citations92
US5671465ASep 23, 1997
Image forming apparatus having a revolver type developing device
RICOH KK26 citations92
US5515145AMay 7, 1996
Color image forming apparatus having integral multiple length belt
RICOH KK36 citations92
US5440373AAug 8, 1995
Color image forming apparatus
RICOH KK51 citations92
US4755847AJul 5, 1988
Electrostatic latent image developing apparatus
RICOH KK29 citations92
US4710015ADec 1, 1987
Developing apparatus
RICOH KK16 citations73
NIKON CORP
4 patentsUS5508517AApr 16, 1996
Scanning probe type microscope apparatus
NIKON CORP46 citations92
US5360977ANov 1, 1994
Compound type microscope
NIKON CORP52 citations92
US5317153AMay 31, 1994
Scanning probe microscope
NIKON CORP25 citations90
US5276324AJan 4, 1994
Composite scanning tunneling microscope
NIKON CORP20 citations87