Inventor · disambiguated record
Yang-Oh Choi
Also filed as: CHOI YANG-OH
21 granted patents·350 citations·filing 1995–1998
95Inventor score
Technology areasG11B
Files withDAEWOO ELECTRONICS CO LTD21
Top patents by PatentIndex Score
21 records- 0191US5764621AOptical disc with a plurality of recording layersDAEWOO ELECTRONICS CO LTD·Filed 1995·Granted Jun 9, 1998·74 cites·10 claims
- 0287US5636190AOptical pickup system for use with an optical disk having multiple reflection hologram filmDAEWOO ELECTRONICS CO LTD·Filed 1995·Granted Jun 3, 1997·58 cites·6 claims
- 0376US5809000AOptical pickup system for reading optical disks of different thicknessesDAEWOO ELECTRONICS CO LTD·Filed 1997·Granted Sep 15, 1998·29 cites·20 claims
- 0474US5917800AOptical pickup device for reproducing discs of two types with different densities by double beam focuses of different sizesDAEWOO ELECTRONICS CO LTD·Filed 1997·Granted Jun 29, 1999·26 cites·21 claims
- 0567US5995473AOptical pickup system capable of selectively reading a multiple number of optical disksDAEWOO ELECTRONICS CO LTD·Filed 1997·Granted Nov 30, 1999·19 cites·14 claims
- 0665US5883874AOptical pickup system for selectively reading a multiple number of optical disksDAEWOO ELECTRONICS CO LTD·Filed 1997·Granted Mar 16, 1999·18 cites·19 claims
- 0764US5940360AOptical pickup device for reproducing discs of two types with different densities by double beam focuses of different sizesDAEWOO ELECTRONICS CO LTD·Filed 1997·Granted Aug 17, 1999·18 cites·24 claims
- 0862US5708643AMultiple focus optical pickup system for alternatively reading a multiple number of optical disksDAEWOO ELECTRONICS CO LTD·Filed 1996·Granted Jan 13, 1998·16 cites·9 claims
- 0962US5646929AOptical pickup deviceDAEWOO ELECTRONICS CO LTD·Filed 1995·Granted Jul 8, 1997·17 cites·8 claims
- 1061US5708641AMultiple focus optical pickup systemDAEWOO ELECTRONICS CO LTD·Filed 1996·Granted Jan 13, 1998·15 cites·22 claims
- 1159US5777971AOptical head with a micro fresnel lens integrated on a beam splitterDAEWOO ELECTRONICS CO LTD·Filed 1996·Granted Jul 7, 1998·14 cites·15 claims
- 1256US5953294AOptical pickup apparatusDAEWOO ELECTRONICS CO LTD·Filed 1998·Granted Sep 14, 1999·10 cites·7 claims
- 1350US5787058AOptical pickup apparatus utilizing a polygonal prismDAEWOO ELECTRONICS CO LTD·Filed 1996·Granted Jul 28, 1998·8 cites·10 claims
- 1445US5671206AOptical pickup deviceDAEWOO ELECTRONICS CO LTD·Filed 1995·Granted Sep 23, 1997·7 cites·7 claims
- 1543US5768244AOptical pickup system having an integrated twin focusing beam splitterDAEWOO ELECTRONICS CO LTD·Filed 1996·Granted Jun 16, 1998·6 cites·20 claims
- 1641US6097689AOptical pickup system incorporated therein a polarizing film and a pair of 1/4 wavelength platesDAEWOO ELECTRONICS CO LTD·Filed 1997·Granted Aug 1, 2000·5 cites·10 claims
- 1738US5901132APickup head having two laser light sources for separately reading an optical disk with two recording layersDAEWOO ELECTRONICS CO LTD·Filed 1995·Granted May 4, 1999·4 cites·20 claims
- 1834US6021105AKnife edge method for use in an optical pickup systemDAEWOO ELECTRONICS CO LTD·Filed 1997·Granted Feb 1, 2000·2 cites·9 claims
- 1934US5939710AOptical pickup system incorporating therein a beam splitter having a phase layerDAEWOO ELECTRONICS CO LTD·Filed 1997·Granted Aug 17, 1999·2 cites·14 claims
- 2033US5787066ABoth-sided optical disc player capable of transferring a both-sided disc up and down about an optical pickupDAEWOO ELECTRONICS CO LTD·Filed 1995·Granted Jul 28, 1998·2 cites·4 claims
- 2130US5905254ACompact sized optical pickup systemDAEWOO ELECTRONICS CO LTD·Filed 1997·Granted May 18, 1999·0 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →