Assignee
THOMSON ALCATEL GIGADISC
FR·7 granted patents·149 citations·filing 1985–1988
Top patents by PatentIndex Score
7 records- 0197US4858221APreformatted information medium and optical reader deviceTHOMSON ALCATEL GIGADISC·Filed 1986·Granted Aug 15, 1989·88 cites·12 claims
- 0273US4809251APrewritten data storage medium and optical scanning device thereforTHOMSON ALCATEL GIGADISC·Filed 1986·Granted Feb 28, 1989·18 cites·33 claims
- 0365US4685096AOptical disk with pre-recorded marker patternTHOMSON ALCATEL GIGADISC·Filed 1985·Granted Aug 4, 1987·14 cites·15 claims
- 0453US4868804AOptical memory system which uses a different illumination mode when scanning reserved areasTHOMSON ALCATEL GIGADISC·Filed 1986·Granted Sep 19, 1989·9 cites·13 claims
- 0552US4644520AProtected optical disk of welded constructionTHOMSON ALCATEL GIGADISC·Filed 1985·Granted Feb 17, 1987·16 cites·10 claims
- 0635US4955008APrewritten data storage medium and optical scanning device thereforTHOMSON ALCATEL GIGADISC·Filed 1988·Granted Sep 4, 1990·3 cites·4 claims
- 0711US4659620AInformation medium adapted to be written by thermo-optical means and method of manufacturing sameTHOMSON ALCATEL GIGADISC·Filed 1985·Granted Apr 21, 1987·1 cites·18 claims
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