Inventor
TANAKA MOTOHARU
JP25 patents
⚠️ This page may combine multiple inventors who share the name “TANAKA MOTOHARU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RICOH KK
19 patentsUS7060407B2Jun 13, 2006
Image removing method, image removing device, and image forming apparatus
RICOH KK18 citations92
US5459701AOct 17, 1995
Magneto-optical recording method
RICOH KK29 citations92
US5430696AJul 4, 1995
Magneto-optical recording medium
RICOH KK22 citations92
US5420833AMay 30, 1995
Magneto-optical recording medium having first and second magnetic layers
RICOH KK24 citations92
US4466004AAug 14, 1984
Thermomagnetic recording
RICOH KK27 citations90
US4562105ADec 31, 1985
Ferrimagnetic oxides and magneto-optical recording medium employing the same
RICOH KK20 citations81
US4111823ASep 5, 1978
Dry developing powder including toner powders of different particle size
RICOH KK24 citations80
US7386266B2Jun 10, 2008
Image removing method, image removing device, and image forming apparatus
RICOH KK8 citations74
US5736265AApr 7, 1998
Magneto-optical recording medium and recording method using the same
RICOH KK10 citations74
US5487046AJan 23, 1996
Magneto-optical recording medium having two magnetic layers with the same curie temperature
RICOH KK10 citations74
US5337293AAug 9, 1994
Magneto-optical recording method and recording medium for use in the same
RICOH KK6 citations74
US5323366AJun 21, 1994
Magneto-optical recording method with switching and maintaining perpendicular magnetization light beam application modes
RICOH KK11 citations74
US6939654B2Sep 6, 2005
Carrier and developer for developing latent electrostatic images
RICOH KK10 citations73
US4670322AJun 2, 1987
Metal oxide magnetic substance and a magnetic film consisting thereof and their uses
RICOH KK11 citations73
US4670323AJun 2, 1987
Magneto-optic recording medium having a metal oxide recording layer
RICOH KK12 citations73
US4544602AOct 1, 1985
Magneto-optical recording medium having a ferrimagnetic recording layer
RICOH KK17 citations73
US4413297ANov 1, 1983
Magnetic recording and playback apparatus of perpendicular recording type
RICOH KK15 citations73
US5369629ANov 29, 1994
Magneto-optical recording method and magneto-optical recording medium
RICOH KK4 citations63
US4617601AOct 14, 1986
Magneto-optical recording medium having recording guide tracks
RICOH KK5 citations63