Inventor · disambiguated record
Masashi Usami
Also filed as: USAMI MASASHI
25 granted patents·8 pending applications·480 citations·filing 1986–2025
97Inventor score
Top patents by PatentIndex Score
33 records- 0194USD884562SMotorcycleYAMAHA MOTOR CO LTD·Filed 2018·Granted May 19, 2020·55 cites·1 claims
- 0293US6823142B1Polarization mode dispersion compensating apparatusKDDI CORP·Filed 2000·Granted Nov 23, 2004·65 cites·16 claims
- 0393US6801692B2Optical coupling structureKDDI CORP·Filed 2002·Granted Oct 5, 2004·65 cites·8 claims
- 0484US4932034ADistributed feedback semiconductor laser device and current injectionKOKUSAI DENSHIN DENWA CO LTD·Filed 1989·Granted Jun 5, 1990·32 cites·12 claims
- 0584US4796274ASemiconductor device with distributed bragg reflectorKOKUSAI DENSHIN DENWA CO LTD·Filed 1987·Granted Jan 3, 1989·32 cites·11 claims
- 0683US7184189B2Apparatus for simultaneous OTDM demultiplexing, electrical clock recovery and optical clock generation, and optical clock recoveryUNIV CALIFORNIA·Filed 2005·Granted Feb 27, 2007·8 cites·11 claims
- 0782US7565082B2Data transmission method and system thereof, portable terminal, and data receiverKDDI CORP·Filed 2005·Granted Jul 21, 2009·18 cites·2 claims
- 0877US6907152B2Ring resonatorKDDI CORP·Filed 2003·Granted Jun 14, 2005·18 cites·20 claims
- 0973US5306924ASemiconductor device with strained-layer superlatticeKOKUSAI DENSHIN DENWA CO LTD·Filed 1993·Granted Apr 26, 1994·34 cites·2 claims
- 1070US4815090ADistributed feedback semiconductor laser with monitorKOKUSAI DENSHIN DENWA CO LTD·Filed 1988·Granted Mar 21, 1989·17 cites·6 claims
- 1169US5392306AMultiple quantum well structure and semiconductor device using the sameKOKUSAI DENSHIN DENWA CO LTD·Filed 1993·Granted Feb 21, 1995·33 cites·3 claims
- 1266US6728019B2Optical gate and optical phase modulatorKDD SUBMARINE CABLE SYS INC·Filed 2001·Granted Apr 27, 2004·11 cites·15 claims
- 1364US7196833B2Apparatus for simultaneous OTDM demultiplexing, electrical clock recovery and optical clock generation, and optical clock recoveryUNIV CALIFORNIA·Filed 2005·Granted Mar 27, 2007·2 cites·7 claims
- 1463USD1067427SCatheter handleTERUMO CORP·Filed 2022·Granted Mar 18, 2025·2 cites·1 claims
- 1563US7035495B2Chromatic dispersion deviceKDDI CORP·Filed 2004·Granted Apr 25, 2006·8 cites·12 claims
- 1660US5122844AQuantum well structure and semiconductor device using the sameKOKUSAI DENSHIN DENWA CO LTD·Filed 1991·Granted Jun 16, 1992·20 cites·10 claims
- 1760US2024008885A1Aspiration device, aspiration system, and aspiration methodTERUMO CORP·Filed 2023·Application pending·0 cites
- 1859US6377388B1Optical signal processorDDI CORP·Filed 2000·Granted Apr 23, 2002·7 cites·14 claims
- 1954US6731836B2Dispersion compensatorKDDI SUBMARINE CABLE SYS INC·Filed 2001·Granted May 4, 2004·3 cites·5 claims
- 2052US6091536AOptical processing deviceKDD CORP·Filed 1998·Granted Jul 18, 2000·19 cites·16 claims
- 2152US2025166362A1Learning apparatus, learning method and storage mediumNEC CORP·Filed 2022·Application pending·0 cites
- 2250US2025302354A1Cognitive function estimation device, cognitive function estimation method, and recording mediumNEC CORP·Filed 2025·Application pending·0 cites
- 2348US4788690ADistributed feedback semiconductor laser with monitorKOKUSAI DENSHIN DENWA CO LTD·Filed 1986·Granted Nov 29, 1988·10 cites·3 claims
- 2447USD1004084SHemostasis deviceTERUMO CORP·Filed 2022·Granted Nov 7, 2023·1 cites·1 claims
- 2545USD1049372SInflation valve of hemostasis deviceTERUMO CORP·Filed 2022·Granted Oct 29, 2024·1 cites·1 claims
- 2644US5805327AReshaping device for optical short pulsesKOKUSAI DENSHIN DENWA CO LTD·Filed 1996·Granted Sep 8, 1998·13 cites·9 claims
- 2744US2005018271A1Apparatus for simultaneous OTDM demultiplexing, electrical clock recovery and optical clock generation, and optical clock recoveryKDDI R & D LAB INC·Filed 2004·Application pending·0 cites
- 2842US2003170030A1Optical delay unitFiled 2003·Application pending·0 cites
- 2939USD1070079SCatheter handleTERUMO CORP·Filed 2022·Granted Apr 8, 2025·0 cites·1 claims
- 3039US2001004291A1Chromatic dispersion compensator, optical receiver and optical receiving terminalFiled 2000·Application pending·0 cites
- 3138US2005053385A1Optical apparatus and optical processing methodFiled 2004·Application pending·0 cites
- 3235US5912911AOptical short pulse reshaping deviceKOKUSAI DENSHIN DENWA CO LTD·Filed 1997·Granted Jun 15, 1999·6 cites·10 claims
- 3333US2001012430A1Nonlinear optical elementFiled 2001·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →