Inventor
TOMITA SEIJI
JP30 patents
⚠️ This page may combine multiple inventors who share the name “TOMITA SEIJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TOKYO SHIBAURA ELECTRIC CO
12 patentsUS4238808ADec 9, 1980
Tape stop detecting mechanism
TOKYO SHIBAURA ELECTRIC CO26 citations82
US4360174ANov 23, 1982
Cassette tape recorder
TOKYO SHIBAURA ELECTRIC CO21 citations80
US4636895AJan 13, 1987
Tape head apparatus for a cassette tape recorder
TOKYO SHIBAURA ELECTRIC CO5 citations74
US4532565AJul 30, 1985
Tape recorder
TOKYO SHIBAURA ELECTRIC CO5 citations74
US4669006AMay 26, 1987
Tape player
TOKYO SHIBAURA ELECTRIC CO2 citations63
US4593331AJun 3, 1986
Tape player
TOKYO SHIBAURA ELECTRIC CO6 citations63
US4587583AMay 6, 1986
Tape player
TOKYO SHIBAURA ELECTRIC CO3 citations63
US4646187AFeb 24, 1987
Cassette tape recorder
TOKYO SHIBAURA ELECTRIC CO2 citations61
US4625251ANov 25, 1986
Tape recorder
TOKYO SHIBAURA ELECTRIC CO2 citations61
US4542430ASep 17, 1985
Tape recorder
TOKYO SHIBAURA ELECTRIC CO5 citations61
US4492995AJan 8, 1985
Tape cassette loading and ejection device
TOKYO SHIBAURA ELECTRIC CO2 citations60
US4519558AMay 28, 1985
Tape player
TOKYO SHIBAURA ELECTRIC CO0 citations40
TOSHIBA KK
5 patentsUS4669012AMay 26, 1987
Head apparatus for a cassette tape recorder
TOSHIBA KK5 citations74
US5478023ADec 26, 1995
Tape driving apparatus
TOSHIBA KK2 citations63
US5274523ADec 28, 1993
Mechanism for a tray type cassette loading device
TOSHIBA KK4 citations61
US5109309AApr 28, 1992
Cassette loading device for loading tape cassette having different shapes and different dimensions to a tape driving position
TOSHIBA KK4 citations58
US5105319AApr 14, 1992
Magnetic recording/reproducing apparatus in which tape cassettes of different sizes can be mounted
TOSHIBA KK5 citations58
IDEMITSU KOSAN CO
4 patentsUS8911886B2Dec 16, 2014
Material for organic electroluminescent devices and organic electroluminescent devices made by using the same
IDEMITSU KOSAN CO4 citations84
US7990046B2Aug 2, 2011
Material for organic electroluminescent devices and organic electroluminescent devices made by using the same
IDEMITSU KOSAN CO9 citations84
US7829204B2Nov 9, 2010
Material for organic electroluminescent device and organic electroluminescent device using same
IDEMITSU KOSAN CO8 citations84
USRE46368EApr 18, 2017
Material for organic electroluminescent devices and organic electroluminescent devices made by using the same
IDEMITSU KOSAN CO0 citations52
IWAKUMA TOSHIHIRO
4 patentsUS8685543B2Apr 1, 2014
Material for organic electroluminescent devices and organic electroluminescent devices made by using the same
IWAKUMA TOSHIHIRO4 citations84
US8580391B2Nov 12, 2013
Material for organic electroluminescence devices and organic electroluminescence device using the material
IWAKUMA TOSHIHIRO6 citations84
US8741450B2Jun 3, 2014
Material for organic electroluminescence devices and organic electroluminescence device using the material
IWAKUMA TOSHIHIRO4 citations73
US8580398B2Nov 12, 2013
Material for organic electroluminescent devices and organic electroluminescent devices made by using the same
IWAKUMA TOSHIHIRO2 citations62