Inventor · disambiguated record
Chang Nam Ahn
Also filed as: AHN CHANG N · AHN CHANG NAM
7 granted patents·235 citations·filing 1995–2001
87Inventor score
Top patents by PatentIndex Score
7 records- 0191US6049660ASimulation method in lithographic processHYUNDAI ELECTRONICS IND·Filed 1997·Granted Apr 11, 2000·134 cites·8 claims
- 0272US6691585B2Anthropomorphic dummy head for use in vehicle crash testHYUNDAI MOTOR CO LTD·Filed 2001·Granted Feb 17, 2004·21 cites·5 claims
- 0362US5583069AMethod for making a fine annular charge storage electrode in a semiconductor device using a phase-shift maskHYUNDAI ELECTRONICS IND·Filed 1995·Granted Dec 10, 1996·32 cites·20 claims
- 0457US5770338APhase shifting overlay mark that measures exposure energy and focusHYUNDAI ELECTRONICS IND·Filed 1996·Granted Jun 23, 1998·17 cites·9 claims
- 0549US5712063APhase shift mask comprising light shielding regions having a multiple box structureHYUNDAI ELECTRONICS IND·Filed 1996·Granted Jan 27, 1998·12 cites·19 claims
- 0648US5897975APhase shift mask for formation of contact holes having micro dimensionHYUNDAI ELECTRONICS IND·Filed 1995·Granted Apr 27, 1999·15 cites·4 claims
- 0733US5817437AMethod for detecting phase error of a phase shift maskHYUNDAI ELECTRONICS IND·Filed 1996·Granted Oct 6, 1998·4 cites·19 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →