Inventor · disambiguated record
Jun Ohya
Also filed as: OHYA JUN
28 granted patents·3 pending applications·729 citations·filing 1985–2021
97Inventor score
Files withMATSUSHITA ELECTRIC INDUSTRIAL CO LTD22HITACHI LTD4MATSUSHITA ELECTRIC INDUCTRIAL1NATIONAL UNIV CORPORATION TOKAI NATIONAL HIGHER EDUCATION AND RESEARCH SYSTEM1OHYA JUN1
Top patents by PatentIndex Score
31 records- 0194US6406196B1Optical device and method for producing the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted Jun 18, 2002·156 cites·12 claims
- 0279US5623362AErbium-doped fiber amplifier and an optical fiber communication systemMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted Apr 22, 1997·49 cites·26 claims
- 0378US5563733AOptical fiber amplifier and optical fiber transmission systemMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1995·Granted Oct 8, 1996·58 cites·23 claims
- 0478US5530583AOptical signal amplification apparatus and an optical fiber transmission system using the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1994·Granted Jun 25, 1996·36 cites·25 claims
- 0578US4794608ASemiconductor laser deviceMATSUSHITA ELECTRIC INDUCTRIAL·Filed 1985·Granted Dec 27, 1988·26 cites·14 claims
- 0677US4980617ASpeed control apparatus of movable equipmentHITACHI LTD·Filed 1989·Granted Dec 25, 1990·34 cites·18 claims
- 0776US5598294AOptical fiber amplifier and optical fiber communication systemMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1995·Granted Jan 28, 1997·43 cites·14 claims
- 0875US4910738AShort optical pulse generators using mode-locked semiconductor lasers oscillating in transverse magnetic modesMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1988·Granted Mar 20, 1990·22 cites·9 claims
- 0974US6556327B1Signal converter, optical transmitter and optical fiber transmission systemMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1998·Granted Apr 29, 2003·42 cites·4 claims
- 1072US5659558AShort-wavelength laser element doped with rare earth ions, optical amplifier doped with rare earth ions, and wavelength converter doped with rare earth ionsMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted Aug 19, 1997·38 cites·23 claims
- 1170US8991381B2Method of cutting workpiece with wire saw, and wire sawOHYA JUN·Filed 2010·Granted Mar 31, 2015·4 cites·12 claims
- 1270US5598491AOptical fiber amplifier and optical fiber transmission apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1995·Granted Jan 28, 1997·33 cites·20 claims
- 1369US7424200B2Information recording apparatus and information recording methodHITACHI LTD·Filed 2002·Granted Sep 9, 2008·6 cites·38 claims
- 1469US6335814B1Optical transmission system and optical transmitter and optical receiver used thereforMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1998·Granted Jan 1, 2002·31 cites·36 claims
- 1564US5177752AOptical pulse generator using gain-switched semiconductor laserMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1991·Granted Jan 5, 1993·21 cites·9 claims
- 1663US5426656ALaser element doped with rare earth ions, optical amplifier element doped with rare earth ions and rare-earth-ion-doped short-wavelength laser light source apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1994·Granted Jun 20, 1995·21 cites·36 claims
- 1763US4843609AOptical integrated circuit for heterodyne detectionMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1987·Granted Jun 27, 1989·26 cites·5 claims
- 1861US7196995B2Method of authenticating disk management information and disk deviceHITACHI LTD·Filed 2003·Granted Mar 27, 2007·4 cites·6 claims
- 1961US4899360ASemiconductor laser device having monolithically formed active and passive cavities on the same substrateMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1988·Granted Feb 6, 1990·13 cites·4 claims
- 2061US2009003160A1Information Recording Apparatus and Information Recording MethodHITACHI LTD·Filed 2008·Application pending·0 cites
- 2160US9969017B2Wire saw apparatus and cut-machining methodTOYO ADVANCED TECH CO LTD·Filed 2012·Granted May 15, 2018·2 cites·11 claims
- 2255US5341237ARare earth ion doped optical elementMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1992·Granted Aug 23, 1994·16 cites·12 claims
- 2354US6690893B2Optical transmitterMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Feb 10, 2004·2 cites·7 claims
- 2453US6822997B2Semiconductor laser module and optical transmission systemMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Nov 23, 2004·3 cites·5 claims
- 2552US7382986B2Signal converter, optical transmitter and optical fiber transmission systemMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Jun 3, 2008·2 cites·3 claims
- 2652US5321708AOptical fiber amplifier doped with dysprosium ion for the 1.3 μm wavelength bandMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1993·Granted Jun 14, 1994·13 cites·9 claims
- 2747US2004136730A1Optical transmission system and optical transmitter and optical receiver used thereforFiled 2004·Application pending·0 cites
- 2844US5453867AAnalog optical transmission systemMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1993·Granted Sep 26, 1995·13 cites·20 claims
- 2944US2023043393A1Light/heat treatment device having thermo-endoscopeNATIONAL UNIV CORPORATION TOKAI NATIONAL HIGHER EDUCATION AND RESEARCH SYSTEM·Filed 2021·Application pending·0 cites
- 3040US5436751AAnalog optical transmission system and optical fiber amplifierMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1992·Granted Jul 25, 1995·10 cites·7 claims
- 3135US5914808AIntermediate isolator type fiber amplifier and fiber transmission systemMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted Jun 22, 1999·5 cites·10 claims
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