Inventor
TSUBOI NOBUYOSHI
JP22 patents
Patents
22 patentsUS5101096AMar 31, 1992
Optical recording sheet and method and apparatus for reproducing the same
HITACHI LTD99 citations96
US5055731AOct 8, 1991
High-speed two-dimensional electrostatic actuator
HITACHI LTD70 citations96
US4775967AOct 4, 1988
Beam spot control device using a thin micro lens with an actuator
HITACHI LTD55 citations96
US5484686AJan 16, 1996
Optical recording media and information recording and reproducing units
HITACHI LTD21 citations92
US5475656ADec 12, 1995
Optical disk memory and information processing apparatus
HITACHI LTD25 citations92
US5432644AJul 11, 1995
Disk drive unit having motor components in a compact arrangement
HITACHI LTD48 citations92
US5371730ADec 6, 1994
Optical memory and information processing apparatus
HITACHI LTD23 citations92
US5317556AMay 31, 1994
Information processing apparatus and optical head incorporated therein
HITACHI LTD21 citations92
US5311494AMay 10, 1994
Optical disk apparatus and optical head
HITACHI LTD48 citations92
US5177717AJan 5, 1993
Optical memory medium and its information recording and erasing method and apparatus
HITACHI LTD32 citations92
US4978187ADec 18, 1990
Optical element, optical disc and rotary encoder with the optical element
HITACHI LTD41 citations92
US4937808AJun 26, 1990
Intergrated optical head with flexible substrate portion
HITACHI LTD40 citations92
US4841514AJun 20, 1989
Optical recording method and apparatus using two fight spots
HITACHI LTD35 citations92
US4811328AMar 7, 1989
Optical recording and reproducing device
HITACHI LTD30 citations92
US4773060ASep 20, 1988
Optical information recording device
HITACHI LTD44 citations92
US4718053AJan 5, 1988
Optical information apparatus and method of recording and erasing information
HITACHI LTD23 citations81
US4499986AFeb 19, 1985
Control apparatus for passenger conveyor
HITACHI LTD24 citations80
US5110792AMay 5, 1992
Method and apparatus of optical modulation using superconductive oxide material
HITACHI LTD16 citations74
US4862440AAug 29, 1989
Optical head with optical beam control using acoustic wave device
HITACHI LTD12 citations74
US5583840ADec 10, 1996
ROM type optical recording medium with a high reflectivity and an optical head operable on ROM, write-one and rewritable disk
HITACHI LTD14 citations73
US5274612ADec 28, 1993
Information processor and disk memory used in the same
HITACHI LTD13 citations73
USRE36624EMar 21, 2000
Optical recording media and information recording and reproducing units
HITACHI LTD3 citations62