Inventor · disambiguated record
Yihao Cheng
Also filed as: CHENG YIHAO
46 granted patents·1 pending application·1,688 citations·filing 1994–2014
99Inventor score
Top patents by PatentIndex Score
47 records- 0194US5471340AReflective optical non-reciprocal devicesJDS FITEL INC·Filed 1994·Granted Nov 28, 1995·122 cites·15 claims
- 0293US5745626AMethod for and encapsulation of an optical fiberJDS FITEL INC·Filed 1996·Granted Apr 28, 1998·123 cites·14 claims
- 0392US5790314AGrin lensed optical deviceJDS FITEL INC·Filed 1997·Granted Aug 4, 1998·118 cites·19 claims
- 0491US6819872B2Micro-optic delay element for use in a time division multiplexed systemJDS UNIPHASE CORP·Filed 2003·Granted Nov 16, 2004·37 cites·23 claims
- 0587US5920411AOptical multiplexing/demultiplexing deviceFiled 1997·Granted Jul 6, 1999·83 cites·17 claims
- 0686US5574596AOptical circulatorJDS FITEL INC·Filed 1995·Granted Nov 12, 1996·76 cites·12 claims
- 0784US6142678AOptical couplingJDS UNIPHASE INC·Filed 1999·Granted Nov 7, 2000·66 cites·3 claims
- 0884US5768005AMulti-stage optical isolatorJDS FITEL INC·Filed 1995·Granted Jun 16, 1998·66 cites·9 claims
- 0984US5629995AWavelength filter arrangements for use in fiber opticsJDS FITEL INC·Filed 1996·Granted May 13, 1997·69 cites·6 claims
- 1082US5481402ATunable optical filterJDS FITEL INC·Filed 1994·Granted Jan 2, 1996·59 cites·3 claims
- 1181US6607313B1Micro-optic delay element for use in a polarization multiplexed systemJDS FITEL INC·Filed 1999·Granted Aug 19, 2003·58 cites·21 claims
- 1281US6540411B1Optical couplingJDS UNIPHASE INC·Filed 2000·Granted Apr 1, 2003·23 cites·6 claims
- 1381US5799121AMulti-port optical deviceJDS FITEL INC·Filed 1997·Granted Aug 25, 1998·56 cites·18 claims
- 1478US5850493ADevice for focusing light through an optical componentFiled 1997·Granted Dec 15, 1998·48 cites·20 claims
- 1577US5539577AMeans to lessen unwanted reflections in an optical deviceJDS FITEL INC·Filed 1995·Granted Jul 23, 1996·52 cites·8 claims
- 1674US5588078ANon-reciprocal optical waveguide coupling deviceJDS FITEL INC·Filed 1995·Granted Dec 24, 1996·49 cites·18 claims
- 1770US6157485ALens arrangement for enhancing the coupling of light shifted by an optical elementFiled 1999·Granted Dec 5, 2000·32 cites·15 claims
- 1870US6014256APolarizing beam splitter/combinerFiled 1998·Granted Jan 11, 2000·33 cites·5 claims
- 1969US6134360AOptical fibre sleeveJDS UNIPHASE INC·Filed 1998·Granted Oct 17, 2000·33 cites·8 claims
- 2068US6438291B1Coupling of light into a monolithic waveguide deviceJDS FITEL INC·Filed 1998·Granted Aug 20, 2002·33 cites·10 claims
- 2168US6055104AOptical attenuatorFiled 1998·Granted Apr 25, 2000·31 cites·3 claims
- 2268US5754718AHybrid optical filtering circuitJDS FITEL INC·Filed 1996·Granted May 19, 1998·30 cites·15 claims
- 2366US6529328B1Optical filterJDS FITEL INC·Filed 1999·Granted Mar 4, 2003·28 cites·15 claims
- 2465US6711311B2Polarization beam splitter or combinerJDS UNIPHASE INC·Filed 2001·Granted Mar 23, 2004·11 cites·19 claims
- 2565US6657785B2Bi-directional circulatorJDS UNIPHASE INC·Filed 2001·Granted Dec 2, 2003·9 cites·19 claims
- 2665US6587266B2Bi-directional isolatorJDS UNIPHASE CORP·Filed 2001·Granted Jul 1, 2003·9 cites·20 claims
- 2764US5657155AOptical tap coupler deviceJDS FITEL INC·Filed 1996·Granted Aug 12, 1997·26 cites·7 claims
- 2863US5594821AIntegrated optical isolatorJDS FITEL INC·Filed 1995·Granted Jan 14, 1997·26 cites·7 claims
- 2962US5930422AOptical circulatorFiled 1998·Granted Jul 27, 1999·25 cites·21 claims
- 3062US5701375AMethod and system for aligning of optical elementsJDS FITEL INC·Filed 1996·Granted Dec 23, 1997·24 cites·10 claims
- 3161US5825950AOptical isolatorJDS FITEL INC·Filed 1996·Granted Oct 20, 1998·23 cites·12 claims
- 3258US5680237AGraded index lens system and method for coupling lightJDS FITEL INC·Filed 1995·Granted Oct 21, 1997·21 cites·13 claims
- 3355US6059462AOptical coupling systemFiled 1998·Granted May 9, 2000·19 cites·19 claims
- 3455US6014254AOptical device for splitting an input beam into two orthogonal polarization statesFiled 1997·Granted Jan 11, 2000·18 cites·12 claims
- 3554US6498676B1Optical filter for use or with an optical amplifierJDS FITEL INC·Filed 1999·Granted Dec 24, 2002·18 cites·19 claims
- 3654US6044187AMulti-port fiber optical deviceFiled 1998·Granted Mar 28, 2000·18 cites·14 claims
- 3754US5878176AOptical circulatorFiled 1997·Granted Mar 2, 1999·17 cites·11 claims
- 3851US2014313708A1Lighting apparatus and method for surface lighting using ledsCHENG YIHAO·Filed 2014·Application pending·0 cites
- 3950US6268954B1Method and system for controlling the slope of an output responseJDS FITEL INC·Filed 1999·Granted Jul 31, 2001·14 cites·24 claims
- 4047US6292604B1Optical coupler arrangementJDS FITEL INC·Filed 1999·Granted Sep 18, 2001·12 cites·11 claims
- 4146US6014484AMethod and device for optical couplingFiled 1998·Granted Jan 11, 2000·14 cites·14 claims
- 4246US5991076AOptical circulatorFiled 1997·Granted Nov 23, 1999·12 cites·14 claims
- 4345US6393179B1Optical coupling systemJDS FITEL INC·Filed 1999·Granted May 21, 2002·11 cites·14 claims
- 4441US6219481B1Optical filterJDS FITEL INC·Filed 1999·Granted Apr 17, 2001·8 cites·12 claims
- 4541US6091866AOptical isolatorFiled 1998·Granted Jul 18, 2000·8 cites·15 claims
- 4638US6449091B1Optical isolatorJDS FITEL INC·Filed 1996·Granted Sep 10, 2002·7 cites·12 claims
- 4737US6055112ALensed cascaded optical filterFiled 1998·Granted Apr 25, 2000·13 cites·14 claims
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