Inventor
HIRANO MASAKAZU
JP31 patents
⚠️ This page may combine multiple inventors who share the name “HIRANO MASAKAZU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FUJITSU LTD
10 patentsUS6980382B2Dec 27, 2005
Magnetic disk drive system
FUJITSU LTD125 citations98
US6754027B2Jun 22, 2004
Head speed control method, head position detection method and disk unit
FUJITSU LTD30 citations93
US6563660B1May 13, 2003
Actuator control method and storage device
FUJITSU LTD43 citations93
US6504663B2Jan 7, 2003
Disk apparatus and disk medium having a ramp loading mechanism
FUJITSU LTD36 citations93
US6522488B2Feb 18, 2003
Servo information writing method and storage device
FUJITSU LTD31 citations92
US7133243B2Nov 7, 2006
Burst position error data write method and magnetic disk unit
FUJITSU LTD8 citations74
US7019932B2Mar 28, 2006
Disk unit having mechanism for loading and unloading head uniformly in circumferential direction of a disk
FUJITSU LTD9 citations74
US6639750B1Oct 28, 2003
Head loading/unloading control method and storage device
FUJITSU LTD10 citations74
US7110207B2Sep 19, 2006
Load/unload operation control method and storage apparatus
FUJITSU LTD6 citations63
US6522496B1Feb 18, 2003
Storage unit
FUJITSU LTD2 citations63
ASAHI OPTICAL CO LTD
9 patentsUS5671466ASep 23, 1997
Electrophotographic apparatus and sheet guide mechanism
ASAHI OPTICAL CO LTD28 citations92
US5528352AJun 18, 1996
Electrophotographic apparatus having original separation means
ASAHI OPTICAL CO LTD22 citations92
US5321479AJun 14, 1994
Electrophotographic apparatus
ASAHI OPTICAL CO LTD26 citations92
US5592278AJan 7, 1997
Continuous form printer with paper guide mechanism
ASAHI OPTICAL CO LTD20 citations89
US5299051AMar 29, 1994
Housing structure for optical scanning system
ASAHI OPTICAL CO LTD12 citations74
US5452072ASep 19, 1995
Transfer unit mounted on a pivotal upper cover
ASAHI OPTICAL CO LTD9 citations73
US5274477ADec 28, 1993
Electrophotographic facsimile apparatus having a pivoted upper structure
ASAHI OPTICAL CO LTD11 citations73
US5365320ANov 15, 1994
Sheet warp prevention mechanism employed in a fixing unit of an electrophotographic printer
ASAHI OPTICAL CO LTD5 citations63
US5268715ADec 7, 1993
Photoconductive drum exposure prevention structure in a clamshell-type image forming apparatus
ASAHI OPTICAL CO LTD3 citations63
KOBE STEEL LTD
8 patentsUS6258465B1Jul 10, 2001
Energy absorbing member
KOBE STEEL LTD63 citations96
US6231995B1May 15, 2001
Aluminum extruded door beam material
KOBE STEEL LTD18 citations93
US6408591B1Jun 25, 2002
Door beam of aluminum alloy
KOBE STEEL LTD34 citations92
US6059902AMay 9, 2000
Aluminum alloy of excellent machinability and manufacturing method thereof
KOBE STEEL LTD35 citations92
US5011547AApr 30, 1991
Aluminum alloy composite material for brazing
KOBE STEEL LTD28 citations91
US6342111B1Jan 29, 2002
Energy-absorbing member
KOBE STEEL LTD23 citations86
US6338817B2Jan 15, 2002
Aluminum extruded door beam material
KOBE STEEL LTD8 citations74
US6533245B2Mar 18, 2003
Valve device
KOBE STEEL LTD9 citations73