Inventor
OKAMURA MASATOSHI
JP94 patents
⚠️ This page may combine multiple inventors who share the name “OKAMURA MASATOSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TDK CORP
35 patentsUS6205115B1Mar 20, 2001
Disc cartridge
TDK CORP70 citations96
US6452748B1Sep 17, 2002
Tape cartridge with matched brake lock and brake release plate
TDK CORP37 citations92
US6411466B1Jun 25, 2002
Tape cartridge
TDK CORP30 citations92
US6108298AAug 22, 2000
Disc cartridge
TDK CORP32 citations92
US5034839AJul 23, 1991
Structures for fixedly supporting tape guides in a magnetic tape cassette
TDK CORP26 citations92
US6388838B1May 14, 2002
Tape cartridge
TDK CORP14 citations84
US6547174B1Apr 15, 2003
Housing for tape cartridge and hold for mold for forming the same
TDK CORP8 citations74
US6532133B1Mar 11, 2003
Recording medium cartridge with improved welding characteristics
TDK CORP10 citations74
US6490133B1Dec 3, 2002
Tape cartridge with a cell for a leader hook member and a cell for a leader
TDK CORP13 citations74
US6418113B1Jul 9, 2002
Disk cartridge
TDK CORP13 citations74
US6370108B1Apr 9, 2002
Disc cartridge
TDK CORP8 citations74
US6307831B1Oct 23, 2001
Disc cartridge having reference holes
TDK CORP9 citations74
US6243355B1Jun 5, 2001
Disk cartridge with error insertion prevention mechanism
TDK CORP14 citations74
US6191920B1Feb 20, 2001
Tape cassette with tape guides press-fit over ribbed guide posts
TDK CORP9 citations74
US6125011ASep 26, 2000
Disc cartridge with particular cover configuration
TDK CORP8 citations74
US6094326AJul 25, 2000
Disc cartridge with improved shutter mechanism
TDK CORP15 citations74
US5730382AMar 24, 1998
Tapping bosses of magnetic tape cassette
TDK CORP8 citations74
US5232093AAug 3, 1993
Tape cassette housing
TDK CORP13 citations74
US5189583AFeb 23, 1993
Magnetic tape cassette having ribs in reel areas
TDK CORP8 citations74
US5107386AApr 21, 1992
Magnetic tape cassette
TDK CORP8 citations74
US5074487ADec 24, 1991
Tape reel for tape cassette
TDK CORP14 citations74
US4988573AJan 29, 1991
Medium related members
TDK CORP13 citations74
US4973012ANov 27, 1990
Magnetic tape cassette
TDK CORP7 citations74
US4930714AJun 5, 1990
Reel for a magnetic tape
TDK CORP8 citations74
US4885651ADec 5, 1989
Tape cassette with low friction slide member for guiding movement of a lid thereon
TDK CORP9 citations74
US4781340ANov 1, 1988
Magnetic tape cassette
TDK CORP11 citations74
US4769730ASep 6, 1988
Magnetic tape cassette with an improved guard panel
TDK CORP12 citations74
US4631619ADec 23, 1986
Magnetic tape cassette having improved reel locking means
TDK CORP15 citations74
US4546936AOct 15, 1985
Magnetic tape cassette casing
TDK CORP8 citations74
US4504027AMar 12, 1985
Magnetic tape clamping device
TDK CORP8 citations74
US5954198ASep 21, 1999
Cartridge receiving casing
TDK CORP12 citations73
US5492283AFeb 20, 1996
Tape casette and reel spring therefor
TDK CORP7 citations73
US5004180AApr 2, 1991
Magnetic tape cassette
TDK CORP13 citations73
US4863116ASep 5, 1989
Guide member in a cassette for data carrying material
TDK CORP7 citations73
US4585187AApr 29, 1986
Magnetic tape cassette
TDK CORP11 citations73
TDK ELECTRONICS CO LTD
14 patentsUS4457474AJul 3, 1984
Magnetic tape cartridge
TDK ELECTRONICS CO LTD13 citations74
US4438860AMar 27, 1984
Magnetic tape cassette
TDK ELECTRONICS CO LTD9 citations74
US4422599ADec 27, 1983
Magnetic tape cassette
TDK ELECTRONICS CO LTD10 citations74
US4422550ADec 27, 1983
Structure of pivotal-shaft receiving hole of thin-walled molding product
TDK ELECTRONICS CO LTD8 citations74
US4386746AJun 7, 1983
Magnetic tape cassette
TDK ELECTRONICS CO LTD8 citations74
US4371286AFeb 1, 1983
Tapping boss of magnetic tape cassette
TDK ELECTRONICS CO LTD12 citations74
US4358071ANov 9, 1982
Cassette case
TDK ELECTRONICS CO LTD11 citations74
US4358070ANov 9, 1982
Magnetic tape cassette
TDK ELECTRONICS CO LTD10 citations74
US4227622AOct 14, 1980
Tape cassette
TDK ELECTRONICS CO LTD9 citations74
US4212437AJul 15, 1980
Tape cassette
TDK ELECTRONICS CO LTD7 citations74
US4195797AApr 1, 1980
Tape cassette
TDK ELECTRONICS CO LTD9 citations74
US4187998AFeb 12, 1980
Tape cassette
TDK ELECTRONICS CO LTD7 citations74
US4181272AJan 1, 1980
Tape cassette reel
TDK ELECTRONICS CO LTD8 citations74
US4304374ADec 8, 1981
Tape cassette
TDK ELECTRONICS CO LTD13 citations73
KAWAKAMI YOSHIO
1 patentShowing the top 50 of 94 patents by PatentIndex Score.