Inventor · disambiguated record
Ping-Ju Chang
Also filed as: CHANG PING · CHANG PING-JU
3 granted patents·6 pending applications·11 citations·filing 2004–2015
56Inventor score
Top patents by PatentIndex Score
9 records- 0187US9195026B1Step response suppression structure of lens driving apparatusTOPRAY MEMS INC·Filed 2014·Granted Nov 24, 2015·11 cites·13 claims
- 0250US9341811B2Method and apparatus for adjusting-free automatic focusTOPRAY MEMS INC·Filed 2014·Granted May 17, 2016·0 cites·5 claims
- 0341US2016038848A1Speech remote control deviceTOPRAY MEMS INC·Filed 2014·Application pending·0 cites
- 0435US2016294270A1Linear resonant actuatorTOPRAY MEMS INC·Filed 2015·Application pending·0 cites
- 0532US2016161756A1Optical image stabilization actuator moduleTOPRAY MEMS INC·Filed 2015·Application pending·0 cites
- 0630US2006042450A1Guitar machine head string lock functionCHANG PING·Filed 2004·Application pending·0 cites
- 0730US2006042449A1Guitar saddle structureCHANG PING·Filed 2004·Application pending·0 cites
- 0828US8291442B2Electromagnetic actuator of optical pickup headCHANG TSUNG-KAI·Filed 2011·Granted Oct 16, 2012·0 cites·1 claims
- 0928US2012170440A1Electromagnetic actuator of optical pickup headCHANG TSUNG-KAI·Filed 2011·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →