RH

Roger A. Hajjar

PR Prysm: 48 patents #1 of 52Top 2%
TE Terastor: 15 patents #1 of 40Top 3%
Eastman Kodak: 10 patents #1,119 of 8,114Top 15%
PS Prysm Systems: 5 patents #1 of 6Top 20%
VN Versatile Optical Networks: 5 patents #1 of 8Top 15%
VS Vitesse Semiconductor: 2 patents #23 of 124Top 20%
AV Avanex: 2 patents #49 of 269Top 20%
📍 San Jose, CA: #322 of 32,062 inventorsTop 2%
🗺 California: #2,732 of 386,348 inventorsTop 1%
Overall (All Time): #17,873 of 4,157,543Top 1%
90
Patents All Time

Issued Patents All Time

Showing 76–90 of 90 patents

Patent #TitleCo-InventorsDate
6243350 Optical storage systems with flying optical heads for near-field recording and reading Gordon R. Knight, John Al-Samarrie, David L. Blankenbeckler, Brian Bonn, Alan C. Burroughs +4 more 2001-06-05
6111840 Reducing phase distortion in a near-field optical data storage system 2000-08-29
6069853 Head including a heating element for reducing signal distortion in data storage systems Vlad Novotny, David Diepersloot, Bernard W. Bell, Jr. 2000-05-30
6009064 Optical head having dielectric transition layer in near-field optical storage system 1999-12-28
5963532 Polarization rotation and phase compensation in near-field electro-optical system 1999-10-05
5903537 Direct read during mark formation for laser power correction Edward Charles Gage, Clarke K. Eastman, Steven C. Dohmeier 1999-05-11
5784348 Phase detected direct read during write Clarke K. Eastman, Edward Charles Gage, Steven C. Dohmeier 1998-07-21
5757756 Reducing mark length variations in recording data in wobbled groove storage media 1998-05-26
5742573 Compensation apparatus for radial and vertical runout of an optical disc Stuart D. Perry, Mark Barton 1998-04-21
5726965 Intersymbol interference detection in an optical recording system using a reflected write signal Jeffrey T. Klaus, Clarke K. Eastman 1998-03-10
5719838 .beta. compensation using a defocus technique 1998-02-17
5696752 Low noise atip detection from an optical recording medium with wobbled grooves Jeffrey T. Klaus 1997-12-09
5675568 Laser power control in an optical recording system to compensate for variations in mark length resulting from a wobbled groove James E. Durnin, Clarke K. Eastman 1997-10-07
5646919 Dynamic tracking control in an optical recording system by sensing mark formation Clarke K. Eastman 1997-07-08
5627808 Cross-track tilt error compensation method for optical disc drives Mark Barton 1997-05-06