Inventor · disambiguated record
Robert L. Hazel
Also filed as: HAZEL ROBERT L · HAZEL ROBERT LAWRENCE
16 granted patents·1 pending application·386 citations·filing 1980–2011
94Inventor score
Top patents by PatentIndex Score
17 records- 0196US4621353AOptical memory system providing improved focusing control and improved beam combining and separating apparatusBURROUGHS CORP·Filed 1982·Granted Nov 4, 1986·82 cites·10 claims
- 0296US4443870AOptical memory system providing track followingBURROUGHS CORP·Filed 1981·Granted Apr 17, 1984·62 cites·6 claims
- 0395US4494226AThree beam optical memory systemBURROUGHS CORP·Filed 1981·Granted Jan 15, 1985·56 cites·16 claims
- 0487US4402061APreformatted optical media for use in an optical memory systemBURROUGHS CORP·Filed 1981·Granted Aug 30, 1983·31 cites·14 claims
- 0585US4972397ADithering optical data loggerDREXLER TECH·Filed 1988·Granted Nov 20, 1990·33 cites·23 claims
- 0683US4417330AOptical memory system providing improved focusing controlBURROUGHS CORP·Filed 1981·Granted Nov 22, 1983·25 cites·8 claims
- 0777US4428075AMethods of preformatting an optical diskBURROUGHS CORP·Filed 1981·Granted Jan 24, 1984·23 cites·7 claims
- 0871US4428069AApparatus for preformatting an optical diskBURROUGHS CORP·Filed 1981·Granted Jan 24, 1984·18 cites·8 claims
- 0968US8033467B2Portable optical card readersLASERCARD CORP·Filed 2007·Granted Oct 11, 2011·3 cites·18 claims
- 1065US5268801AMethod and apparatus for effecting data transfer with high precision reference data on a rotatable storage mediaSERVO TRACK WRITER CORP·Filed 1990·Granted Dec 7, 1993·19 cites·47 claims
- 1163US4544964AStrobe for read/write chainBURROUGHS CORP·Filed 1980·Granted Oct 1, 1985·11 cites·30 claims
- 1256US4888759ALaser optical memory system having beam combining and separating apparatus for combining and separating reading and writing laser beamsBURROUGHS CORP·Filed 1982·Granted Dec 19, 1989·9 cites·17 claims
- 1346US8408465B2Portable optical card readersHAZEL ROBERT L·Filed 2011·Granted Apr 2, 2013·0 cites·10 claims
- 1445US4562568ABeam combining and separating apparatus useful for combining and separating reading and writing laser beams in an optical storage systemBURROUGHS CORP·Filed 1982·Granted Dec 31, 1985·9 cites·15 claims
- 1540US4559622AOptical memory system providing improved focus detection and control by detecting reflected beam diameter variations at spaced predetermined locations in the systemBURROUGHS CORP·Filed 1982·Granted Dec 17, 1985·4 cites·9 claims
- 1639US2013148178A1Diffractive motion osm authenticatorMERCIER FRANTZ·Filed 2011·Application pending·0 cites
- 1730US4622659AFocus detection and control apparatus for maintaining accurate focusing in an optical memory system by detecting reflected beam diameter variations at spaced predetermined locationsBURROUGHS CORP·Filed 1982·Granted Nov 11, 1986·1 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →