Assignee
LIOU CHANG-HO
TW·7 granted patents·2 pending applications·29 citations·filing 2007–2012
Top patents by PatentIndex Score
9 records- 0177US8107651B2Speaker structureLIOU CHANG-HO·Filed 2008·Granted Jan 31, 2012·8 cites·27 claims
- 0274US8155356B2Structure and manufacturing method of electrostatic speakerLIOU CHANG-HO·Filed 2008·Granted Apr 10, 2012·6 cites·35 claims
- 0374US8126189B2Multi-directional flat speaker deviceLIOU CHANG-HO·Filed 2009·Granted Feb 28, 2012·6 cites·15 claims
- 0473US8081784B2Electrostatic electroacoustic transducersLIOU CHANG-HO·Filed 2007·Granted Dec 20, 2011·6 cites·30 claims
- 0562US8391520B2Flat speaker unit and speaker device therewithLIOU CHANG-HO·Filed 2009·Granted Mar 5, 2013·2 cites·39 claims
- 0659US8322018B2Method of manufacturing speakerLIOU CHANG-HO·Filed 2010·Granted Dec 4, 2012·1 cites·17 claims
- 0748US2012272517A1Device of manufacturing speakerLIOU CHANG-HO·Filed 2012·Application pending·0 cites
- 0839US2012051564A1Flat speaker structure and manufacturing method thereofLIOU CHANG-HO·Filed 2011·Application pending·0 cites
- 0931US8831253B2Electroacoustic apparatus with optical energy conversion functionLIOU CHANG-HO·Filed 2010·Granted Sep 9, 2014·0 cites·12 claims
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