Inventor · disambiguated record
Joseph Chang
Also filed as: CHANG JOSEPH · CHANG JOSEPH JUIFU
4 granted patents·1 pending application·98 citations·filing 1975–2019
77Inventor score
Top patents by PatentIndex Score
5 records- 0188US4068217AUltimate density non-volatile cross-point semiconductor memory arrayIBM·Filed 1975·Granted Jan 10, 1978·47 cites·9 claims
- 0279USD476977SOptical amplifierPHOTON X INC·Filed 2001·Granted Jul 8, 2003·26 cites·1 claims
- 0371US6857276B2Temperature controller modulePHOTON X LLC·Filed 2003·Granted Feb 22, 2005·25 cites·17 claims
- 0453US11295976B2Substrate support device, substrate conveyance robot, and aligner deviceYASKAWA ELECTRIC CORP·Filed 2019·Granted Apr 5, 2022·0 cites·20 claims
- 0539US2003180029A1Optical polymer nanocomposite substrates with surface relief structuresFiled 2003·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →