Inventor
MIZUTANI HIKARU
JP26 patents
⚠️ This page may combine multiple inventors who share the name “MIZUTANI HIKARU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI MAXELL
21 patentsUS7027385B1Apr 11, 2006
Optical disk, disk substrate, and drive
HITACHI MAXELL30 citations92
US5893527AApr 13, 1999
Single-reel tape cartridge
HITACHI MAXELL49 citations91
US4556153ADec 3, 1985
Magnetic recording tape cartridge
HITACHI MAXELL30 citations90
US5903541AMay 11, 1999
Disc cartridge lid structure
HITACHI MAXELL18 citations84
US6739537B2May 25, 2004
Single-reel tape cartridge with leader locking mechanism
HITACHI MAXELL14 citations82
US5946290AAug 31, 1999
Tamper-proof lid lock in disc cartridge
HITACHI MAXELL15 citations74
US5910941AJun 8, 1999
Disc cartridge lid structure
HITACHI MAXELL14 citations73
US5479312ADec 26, 1995
Tape cartridge system implementing variable sized tape cartridges designed for use on the same recording/reproducing apparatus
HITACHI MAXELL8 citations73
US4881696ANov 21, 1989
Mechanism for preventing loosening of tape in a tape cartridge
HITACHI MAXELL9 citations73
US5926454AJul 20, 1999
Disc cartridge with slide shutter having catch pieces
HITACHI MAXELL2 citations63
US5503348AApr 2, 1996
Opening and closing of a front lid of a tape cartridge
HITACHI MAXELL3 citations63
US5454527AOct 3, 1995
Tape cartridge
HITACHI MAXELL3 citations63
US6431353B1Aug 13, 2002
Disc cartridge envelope
HITACHI MAXELL2 citations62
US5537279AJul 16, 1996
Tape cassette and magnetic recording/reproducing device
HITACHI MAXELL3 citations62
US4933797AJun 12, 1990
Arrangement for preventing entrance of harmful particles for use in a cartridge
HITACHI MAXELL4 citations62
US4875640AOct 24, 1989
Tape cartidge
HITACHI MAXELL2 citations62
USD435854SJan 2, 2001
Disc cartridge
HITACHI MAXELL3 citations61
US4741496AMay 3, 1988
Tape cartridge
HITACHI MAXELL3 citations56
US5556051ASep 17, 1996
Tape cartridge having a front lid with a covering wall
HITACHI MAXELL1 citations52
US6061213AMay 9, 2000
Magnetic tape cartridge having triple lid assembly
HITACHI MAXELL0 citations51
US5687047ANov 11, 1997
Magnetic tape cartridge having triple lid assembly
HITACHI MAXELL1 citations51