Assignee
CIPHER DATA PROD
US19 patents
Top patents by PatentIndex Score
US4677508AJun 30, 1987
Endwise loaded cartridge tape drive
CIPHER DATA PROD25 citations91
US4573091AFeb 25, 1986
Cartridge tape drive
CIPHER DATA PROD44 citations91
US4704645ANov 3, 1987
Transport for tape cartridge with leader block
CIPHER DATA PROD31 citations89
US4459628AJul 10, 1984
Disk cartridge
CIPHER DATA PROD41 citations89
US5025334AJun 18, 1991
Auto-loading transport for tape cartridge with tape access door and belt capstan roller
CIPHER DATA PROD36 citations86
US4541019ASep 10, 1985
Recording system for recording data on tape in a disk-recording format
CIPHER DATA PROD33 citations86
US4672613AJun 9, 1987
System for transferring digital data between a host device and a recording medium
CIPHER DATA PROD45 citations84
US4243186AJan 6, 1981
Low profile magnetic tape drive with vacuum actuated auto-threading
CIPHER DATA PROD28 citations77
US4949914AAug 21, 1990
Tape transport with rigid arm threader mechanism for leader block tape cartridge
CIPHER DATA PROD8 citations73
US4500965AFeb 19, 1985
Capstanless magnetic tape drive with electronic equivalent to length of tape
CIPHER DATA PROD16 citations73
US4785363ANov 15, 1988
Cartridge alignment mechanism for tape drive
CIPHER DATA PROD11 citations72
US4609958ASep 2, 1986
Precision bearing for reciprocating a magnetic head
CIPHER DATA PROD11 citations72
US4933636AJun 12, 1990
Self-aligning tachometer and method of manufacturing same
CIPHER DATA PROD11 citations71
US4852825AAug 1, 1989
Extraction and insertion mechanism for a leader block of a tape cartridge
CIPHER DATA PROD16 citations71
US4184180AJan 15, 1980
File protect and amount of tape sensing apparatus
CIPHER DATA PROD7 citations70
US4809099AFeb 28, 1989
Transport for tape cartridge with leader block
CIPHER DATA PROD8 citations69
US4236682ADec 2, 1980
Slot loaded, low profile magnetic tape drive
CIPHER DATA PROD5 citations62
US4206890AJun 10, 1980
Tape position sensing apparatus for magnetic tape drive
CIPHER DATA PROD3 citations59
US4183068AJan 8, 1980
Magnetic tape transport mechanism
CIPHER DATA PROD3 citations55