Inventor · disambiguated record
Akira Arimoto
Also filed as: ARIMOTO AKIRA
88 granted patents·3 pending applications·2,145 citations·filing 1981–2008
99Inventor score
Top patents by PatentIndex Score
91 records- 0197US5467417APrism plate for efficiently emitting light flux within a predetermined range, and liquid crystal indicator and indicator illumination method using the sameHITACHI LTD·Filed 1993·Granted Nov 14, 1995·214 cites·7 claims
- 0295US6421174B1Directional reflection screen and display system using the sameHITACHI LTD·Filed 2000·Granted Jul 16, 2002·77 cites·11 claims
- 0395US5361244AOptical head and information recording apparatusHITACHI LTD·Filed 1992·Granted Nov 1, 1994·93 cites·17 claims
- 0493US5461501ALiquid crystal substrate having 3 metal layers with slits offset to block light from reaching the substrateHITACHI LTD·Filed 1993·Granted Oct 24, 1995·85 cites·12 claims
- 0592US5889748AObject lens and optical head for reproducing data from optical disks in different thickness of substrateHITACHI LTD·Filed 1996·Granted Mar 30, 1999·81 cites·19 claims
- 0692US5070488AOptical integrated circuit and optical apparatusFUKUSHIMA ATSUKO·Filed 1989·Granted Dec 3, 1991·108 cites·24 claims
- 0791US4861128AOptical pickup using a waveguideHITACHI LTD·Filed 1988·Granted Aug 29, 1989·49 cites·18 claims
- 0889US5627926APrism plate for efficiently emitting light flux within a predetermined range, and liquid crystal indicator and indicator illumination method using the sameHITACHI LTD·Filed 1995·Granted May 6, 1997·87 cites·11 claims
- 0989US4770507APrism optics and optical information processing apparatusHITACHI LTD·Filed 1985·Granted Sep 13, 1988·38 cites·23 claims
- 1088US5025268AOptical scanning apparatus and asymmetrical aspheric scanning lensHITACHI LTD·Filed 1989·Granted Jun 18, 1991·65 cites·14 claims
- 1187US5006705ALight beam scanning apparatus with controller for varying spacing between a plurality of scanning beamsHITACHI LTD·Filed 1989·Granted Apr 9, 1991·57 cites·45 claims
- 1286US4768043AOptical system for changing laser beam spot size during scanning of scanning lineHITACHI LTD·Filed 1987·Granted Aug 30, 1988·51 cites·10 claims
- 1386US4561717AOptical system for information processingHITACHI LTD·Filed 1981·Granted Dec 31, 1985·40 cites·6 claims
- 1485US7494293B2Digital single-lens reflex cameraHOYA CORP·Filed 2006·Granted Feb 24, 2009·8 cites·20 claims
- 1585US6785203B2Optical lens for optical disc drive with aberration suppression for recording/reproducing for a plurality of optical disc typesPENTAX CORP·Filed 2001·Granted Aug 31, 2004·20 cites·14 claims
- 1685US4768183AOptical reproducing apparatusHITACHI LTD·Filed 1987·Granted Aug 30, 1988·31 cites·7 claims
- 1782US6215756B1Optical head having two lasers of different wavelength and an objective lens made of one material having a rectangular groove shifting phase to decrease focused laser beam spot aberration for focusing laser beams on different thickness substratesHITACHI LTD·Filed 1998·Granted Apr 10, 2001·24 cites·18 claims
- 1880US7292519B2Optical head with lasers and mirrors in a recess formed in a substrateHITACHI LTD·Filed 2005·Granted Nov 6, 2007·6 cites·2 claims
- 1980US6081380ADirectional reflection screen and projection displayHITACHI LTD·Filed 1999·Granted Jun 27, 2000·63 cites·30 claims
- 2080US5411430AScanning optical device and method for making a hybrid scanning lens used thereforHITACHI LTD·Filed 1992·Granted May 2, 1995·31 cites·10 claims
- 2180US4644160ASystem for holding plural light beams in predetermined relative positionsHITACHI LTD·Filed 1984·Granted Feb 17, 1987·34 cites·12 claims
- 2278US6693691B2LCD and projection type display using sameHITACHI LTD·Filed 2002·Granted Feb 17, 2004·12 cites·8 claims
- 2378US5818554AReflective liquid crystal display apparatus which does not require a back lightHITACHI LTD·Filed 1995·Granted Oct 6, 1998·59 cites·16 claims
- 2478US5315573ANon-linear optical saturable absorber layer in an optical disk to discriminate wavelength above or below a threshold level of intensityHITACHI LTD·Filed 1992·Granted May 24, 1994·26 cites·16 claims
- 2578US4792197AFabrication method and equipment for diffraction gratingsHITACHI LTD·Filed 1986·Granted Dec 20, 1988·39 cites·14 claims
- 2677US6437917B1Directional reflection screen and display system using the sameHITACHI LTD·Filed 2000·Granted Aug 20, 2002·16 cites·18 claims
- 2777US5394257AOptical neural network systemHITACHI LTD·Filed 1993·Granted Feb 28, 1995·37 cites·9 claims
- 2875US5404344ARecording/reproducing optical head producing focusing error signal from zero-th order diffracted light and tracking error signal from first order diffracted lightHITACHI LTD·Filed 1993·Granted Apr 4, 1995·23 cites·12 claims
- 2975US4779943AOptical system for semiconductor laser and optical information processing equipment utilizing the sameHITACHI LTD·Filed 1984·Granted Oct 25, 1988·28 cites·5 claims
- 3074US5666598AImage forming method and apparatus using energy beam impingement on image forming particles to move the sameHITACHI LTD·Filed 1995·Granted Sep 9, 1997·24 cites·32 claims
- 3174US4760407ALaser printing apparatus with device for combining a plurality of optical beams provided with an integral-order wave plateHITACHI KOKI KK·Filed 1987·Granted Jul 26, 1988·36 cites·4 claims
- 3273US5490133AOptical information processing apparatus and method of controlling position of optical spot and reproducing signalsHITACHI LTD·Filed 1991·Granted Feb 6, 1996·22 cites·31 claims
- 3373US5420846ARecording medium having a plurality of nonlinear transmission characteristicsHITACHI LTD·Filed 1993·Granted May 30, 1995·20 cites·21 claims
- 3473US4712218AMethod of and apparatus for driving semiconductor laserHITACHI LTD·Filed 1984·Granted Dec 8, 1987·16 cites·15 claims
- 3571US7043118B2Optical communication apparatusPENTAX CORP·Filed 2003·Granted May 9, 2006·12 cites·20 claims
- 3671US5289001ALaser beam scanning apparatus having a variable focal distance device and the variable focal distance device for use in the apparatusHITACHI LTD·Filed 1992·Granted Feb 22, 1994·30 cites·5 claims
- 3770US6879358B2LCD and projection type display using sameHITACHI LTD·Filed 2003·Granted Apr 12, 2005·8 cites·18 claims
- 3870US6034749ALight insensitive type active matrix with P and N regions connected to a reference potentialHITACHI LTD·Filed 1995·Granted Mar 7, 2000·28 cites·13 claims
- 3969US5930220ATracking method for optical disk apparatus using diffraction lightHITACHI LTD·Filed 1996·Granted Jul 27, 1999·22 cites·4 claims
- 4069US5107628AMethod of fabricating article having aspheric figure and tool for use in carrying out the methodHITACHI LTD·Filed 1989·Granted Apr 28, 1992·17 cites·14 claims
- 4166US7515198B2Focusing controlling deviceHOYA CORP·Filed 2005·Granted Apr 7, 2009·2 cites·21 claims
- 4266US5053619AVariable density scanning apparatusHITACHI LTD·Filed 1990·Granted Oct 1, 1991·25 cites·17 claims
- 4365US7675016B2Solid-state image pickup device and method of producing the sameHITACHI LTD·Filed 2007·Granted Mar 9, 2010·3 cites·10 claims
- 4465US6256284B1Optical head having two semiconductor lasers of different wavelength, an objective lens focusing laser beams on different thickness substrates, and an annular phase shifter decreasing focused laser beam spot abberationHITACHI LTD·Filed 2000·Granted Jul 3, 2001·3 cites·1 claims
- 4565US4564268AOptical system for semiconductor laserHITACHI LTD·Filed 1982·Granted Jan 14, 1986·18 cites·20 claims
- 4664US6477129B2Optical disc driveHITACHI LTD·Filed 2001·Granted Nov 5, 2002·5 cites·20 claims
- 4763US4806951AOptical printerHITACHI KOKI KK·Filed 1988·Granted Feb 21, 1989·23 cites·4 claims
- 4863US4592622ALight-beam scanning apparatusHITACHI KOKI KK·Filed 1984·Granted Jun 3, 1986·18 cites·20 claims
- 4962US4811348ASemiconductor laser array deviceHITACHI LTD·Filed 1988·Granted Mar 7, 1989·13 cites·8 claims
- 5061US4929044AOptical pickup using waveguideHITACHI LTD·Filed 1988·Granted May 29, 1990·11 cites·30 claims
Showing the top 50 of 91 patent records by PatentIndex Score.
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