Assignee
HITACHI MAXELL
JP985 patents
Top patents by PatentIndex Score
US6837438B1Jan 4, 2005
Non-contact information medium and communication system utilizing the same
HITACHI MAXELL292 citations99
US7419315B2Sep 2, 2008
Lens device
HITACHI MAXELL82 citations98
US6385407B1May 7, 2002
Accommodating enclosure and management system
HITACHI MAXELL201 citations98
US6344824B1Feb 5, 2002
Noncontact communication semiconductor device
HITACHI MAXELL109 citations98
US5932139AAug 3, 1999
Fluorescent substance, fluorescent composition, fluorescent mark carrier and optical reader thereof
HITACHI MAXELL128 citations98
US4773740ASep 27, 1988
Electrochromic display device
HITACHI MAXELL230 citations98
US7374101B2May 20, 2008
Adapter panel, electronic equipment, and cable connector identification system
HITACHI MAXELL99 citations97
US7287715B2Oct 30, 2007
Magnetic tape cartridge
HITACHI MAXELL61 citations97
US5574273ANov 12, 1996
Non-contact system parallel data transfer system
HITACHI MAXELL113 citations97
US4793695ADec 27, 1988
Electrochromic display device
HITACHI MAXELL169 citations97
US8045288B2Oct 25, 2011
Tape drive with cartridge thickness detecting sensors
HITACHI MAXELL88 citations96
US6921592B2Jul 26, 2005
Magnetic recording medium comprising a magnetic layer having specific thickness, surface roughness and friction coefficient
HITACHI MAXELL103 citations96
US6910634B1Jun 28, 2005
Information input/ output unit
HITACHI MAXELL56 citations96
US6517934B1Feb 11, 2003
Magnetic recording medium containing nanometer-size substantially spherical or ellipsoidal fe-b-re magnetic powder and method for producing magnetic powder
HITACHI MAXELL52 citations96
US6160769ADec 12, 2000
Optical recording medium and optical recording device
HITACHI MAXELL51 citations96
US6044792AApr 4, 2000
Plasma CVD apparatus
HITACHI MAXELL50 citations96
US5880176AMar 9, 1999
Fluorescent marking composition and fluorescent mark formed by said composition
HITACHI MAXELL68 citations96
US5406064AApr 11, 1995
IC card and portable terminal
HITACHI MAXELL46 citations96
US5255261AOct 19, 1993
Information recording disk
HITACHI MAXELL94 citations96
US5247164ASep 21, 1993
IC card and portable terminal
HITACHI MAXELL110 citations96
US5210411AMay 11, 1993
Detection mark and method and apparatus for detecting mark
HITACHI MAXELL67 citations96
US5091618AFeb 25, 1992
Ic card reader/writer
HITACHI MAXELL92 citations96
US4961105AOct 2, 1990
Arrangement of a semiconductor device for use in a card
HITACHI MAXELL74 citations96
US4663556AMay 5, 1987
Torsional mode ultrasonic vibrator
HITACHI MAXELL69 citations96
US6615363B1Sep 2, 2003
Optical disk and method of recording on the same
HITACHI MAXELL130 citations95
US6303929B1Oct 16, 2001
Fluorescent substance, fluorescent composition, fluorescent mark carrier and optical reader therefor
HITACHI MAXELL47 citations95
US6282081B1Aug 28, 2001
Electrode for capacitor, method for producing the same and capacitor
HITACHI MAXELL168 citations95
US6127017AOct 3, 2000
Substrate for information recording disk, mold and stamper for injection molding substrate, and method for making stamper, and information recording disk
HITACHI MAXELL46 citations95
US6101153AAug 8, 2000
Magnetic head capable of generating multi-stepped external magnetic fields for magneto-optical recording device
HITACHI MAXELL62 citations95
US5611958AMar 18, 1997
Infrared phosphor and material having latent images and optical reading system using said phosphor
HITACHI MAXELL72 citations95
US5550781AAug 27, 1996
Semiconductor apparatus with two activating modes of different number of selected word lines at refreshing
HITACHI MAXELL80 citations95
US5537389AJul 16, 1996
Disk cartridge having a single closing energizer for closing two independently opened shutters
HITACHI MAXELL78 citations95
US5537584AJul 16, 1996
Power instability control of a memory card and a data processing device therefor
HITACHI MAXELL125 citations95
US4451542AMay 29, 1984
Cell with gasket comprising glass beads
HITACHI MAXELL54 citations95
US7803471B1Sep 28, 2010
Magnetic tape, its cleaning method, and optical servotrack forming/cleaning apparatus
HITACHI MAXELL106 citations94
US6759168B2Jul 6, 2004
Nonaqueous secondary battery with lithium titanium cathode
HITACHI MAXELL45 citations94
USD479192SSep 2, 2003
Battery
HITACHI MAXELL54 citations94
USD479193SSep 2, 2003
Battery
HITACHI MAXELL58 citations94
US6602621B2Aug 5, 2003
Magnetic recording medium, method for producing the same, and magnetic storage apparatus
HITACHI MAXELL52 citations94
US6482495B1Nov 19, 2002
Information carrier and process for production thereof
HITACHI MAXELL71 citations94
US6412701B1Jul 2, 2002
Flexible IC module and method of its manufacture, and method of manufacturing information carrier comprising flexible IC module
HITACHI MAXELL74 citations94
US6395805B1May 28, 2002
Dispersion composition and process for production thereof
HITACHI MAXELL62 citations94
US6275371B1Aug 14, 2001
Electrode material for electrochemical capacitor, electrochemical capacitor comprising the same, and method for the production of the same
HITACHI MAXELL53 citations94
US5418353AMay 23, 1995
Non-contact, electromagnetically coupled transmission and receiving system for IC cards
HITACHI MAXELL87 citations94
US5200600AApr 6, 1993
IC card and method for writing information therein
HITACHI MAXELL78 citations94
US5126541AJun 30, 1992
Integrated circuit card
HITACHI MAXELL56 citations94
US5003594AMar 26, 1991
Portable electronic device and its secret information collation method
HITACHI MAXELL69 citations94
US4911298AMar 27, 1990
Cassette storage container
HITACHI MAXELL81 citations94
US4864542ASep 5, 1989
Memory cartridge having stored data protecting function and memory protecting method
HITACHI MAXELL96 citations94
US4504707AMar 12, 1985
Push-button switch locking device for use in electric appliance
HITACHI MAXELL74 citations94
Showing the top 50 of 985 patents by PatentIndex Score.