Inventor
KAWARAI SEIGI
JP16 patents
⚠️ This page may combine multiple inventors who share the name “KAWARAI SEIGI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI MAXELL
15 patentsUS5532042AJul 2, 1996
Magnetic recording medium
HITACHI MAXELL22 citations92
US7253988B2Aug 7, 2007
Recording/reproducing method of magnetic tape
HITACHI MAXELL18 citations91
US5260132ANov 9, 1993
Acicular alloy magnetic powder
HITACHI MAXELL21 citations90
US5252380AOct 12, 1993
Acicular alloy containing magnetic recording medium
HITACHI MAXELL34 citations90
US4956220ASep 11, 1990
Magnetic recording medium
HITACHI MAXELL18 citations73
US4774147ASep 27, 1988
Magnetic recording medium
HITACHI MAXELL10 citations73
US7593177B2Sep 22, 2009
Recording/reproducing method of magnetic tape
HITACHI MAXELL5 citations72
US7170709B2Jan 30, 2007
Recording/reproducing method of magnetic tape
HITACHI MAXELL9 citations72
US5725943AMar 10, 1998
Magnetic tape cartridge
HITACHI MAXELL3 citations62
US4632867ADec 30, 1986
Magnetic recording medium
HITACHI MAXELL6 citations62
US5051319ASep 24, 1991
Magnetic recording tape containing low levels of compounds with molecular weights between specified limits determined from gel permeation chromatography of tape extract
HITACHI MAXELL5 citations60
US7701655B2Apr 20, 2010
Servo signal recording method, servo signal recording apparatus, and magnetic recording medium
HITACHI MAXELL1 citations52
USRE38048EMar 25, 2003
Magnetic recording medium
HITACHI MAXELL0 citations52
US7545597B2Jun 9, 2009
Recording/reproducing method of magnetic tape
HITACHI MAXELL0 citations51
US5035947AJul 30, 1991
Magnetic recording medium including magnetic metallic powder
HITACHI MAXELL0 citations45