Inventor
VOGELGESANG PETER J
US19 patents
⚠️ This page may combine multiple inventors who share the name “VOGELGESANG PETER J”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MINNESOTA MINING & MFG
18 patentsUS4812633AMar 14, 1989
Optical data card
MINNESOTA MINING & MFG116 citations94
US4123578AOct 31, 1978
Transfer letter system
MINNESOTA MINING & MFG59 citations94
US4291956ASep 29, 1981
Graphic forming device with preview feature
MINNESOTA MINING & MFG57 citations92
US4939715AJul 3, 1990
Tape scanning apparatus
MINNESOTA MINING & MFG26 citations91
US4123309AOct 31, 1978
Transfer letter system
MINNESOTA MINING & MFG34 citations91
US4257075AMar 17, 1981
Tape magazine and recording and/or playback machine with improved magazine locating and loading structure
MINNESOTA MINING & MFG37 citations88
US5022018AJun 4, 1991
System for applying a perpendicular magnetic field to the illuminated side of a magneto-optic medium
MINNESOTA MINING & MFG20 citations82
US4575778AMar 11, 1986
Tape cassette containing run counter disc
MINNESOTA MINING & MFG21 citations82
US5340975AAug 23, 1994
Method and apparatus for reducing the effects of laser noise and for improving modulation transfer function in scanning a photoconductive surface
MINNESOTA MINING & MFG14 citations73
US4586101AApr 29, 1986
Tape recorder cassette with tamper-proof counter
MINNESOTA MINING & MFG16 citations73
US4381491AApr 26, 1983
Device to slow solenoid actuation motion
MINNESOTA MINING & MFG14 citations73
US5096627AMar 17, 1992
Method of molding optical recording drums
MINNESOTA MINING & MFG13 citations72
US5149951ASep 22, 1992
Apparatus and method for presenting a data card for data transfer with centrifugal flyweight
MINNESOTA MINING & MFG5 citations62
US4525696AJun 25, 1985
Driver for rotating a magnetic playback head
MINNESOTA MINING & MFG4 citations62
US4433351AFeb 21, 1984
System for reducing phase error in multitrack magnetic recording
MINNESOTA MINING & MFG6 citations62
US5365333ANov 15, 1994
Apparatus for analyzing tracking error in magnetic tapes
MINNESOTA MINING & MFG6 citations61
US5342682AAug 30, 1994
Method of molding optical recording drums
MINNESOTA MINING & MFG4 citations61
US5268950ADec 7, 1993
System and method for maintaining uniform spacing of an electrode over the surface of an x-ray plate
MINNESOTA MINING & MFG2 citations61