Inventor
OHKURA HIROKO
JP26 patents
⚠️ This page may combine multiple inventors who share the name “OHKURA HIROKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RICOH KK
14 patentsUS6790592B2Sep 14, 2004
Phase-change optical information recording medium
RICOH KK23 citations92
US7507523B2Mar 24, 2009
Optical information recording medium, method of manufacturing the optical information recording medium, and method of and apparatus for recording/reproducing optical information
RICOH KK14 citations84
US7438965B2Oct 21, 2008
Phase-change information recording medium, manufacturing method for the same, sputtering target, method for using the phase-change information recording medium and optical recording apparatus
RICOH KK10 citations84
US7242657B2Jul 10, 2007
Phase change type optical recording medium and recording method therefor
RICOH KK13 citations84
US6846611B2Jan 25, 2005
Phase-change optical recording medium
RICOH KK17 citations84
US6884487B2Apr 26, 2005
Optical recording medium, recording material, method of producing optical recording medium, and optical recording, reading and rewriting method
RICOH KK8 citations73
US7485357B2Feb 3, 2009
Optical recording medium
RICOH KK4 citations63
US7384678B2Jun 10, 2008
Optical recording medium and process for producing the same, sputtering target, using process of optical recording medium, and optical recording apparatus
RICOH KK2 citations63
US6963527B2Nov 8, 2005
Information recording method and optical recording medium therefor
RICOH KK2 citations62
US7626915B2Dec 1, 2009
Phase-change optical recording medium and recording and reproducing method thereof
RICOH KK0 citations52
US7364781B2Apr 29, 2008
Optical recording medium, recording material, method of producing optical recording medium and optical recording, reading and rewriting method
RICOH KK0 citations52
US7068591B2Jun 27, 2006
Information recording method and optical recording medium therefor
RICOH KK0 citations51
US7800993B2Sep 21, 2010
Optical recording medium, recording method thereof and evaluation method of optical recording medium
RICOH KK0 citations42
US7715293B2May 11, 2010
Optical recording medium and method of recording to the same
RICOH KK0 citations41
RICOH CO LTD
5 patentsUS11179940B2Nov 23, 2021
Liquid discharging device and wiping method
RICOH CO LTD4 citations72
US11130343B2Sep 28, 2021
Wiping device, liquid discharging device, and wiping method
RICOH CO LTD2 citations72
US11780230B2Oct 10, 2023
Wiper, wiping device, liquid discharge apparatus, and wiping method
RICOH CO LTD0 citations61
US12030090B2Jul 9, 2024
Wiping member, wiping method, and image forming apparatus
RICOH CO LTD0 citations60
US8017209B2Sep 13, 2011
Optical recording medium
RICOH CO LTD0 citations52