Inventor
FUJITA YOSHIAKI
JP35 patents
⚠️ This page may combine multiple inventors who share the name “FUJITA YOSHIAKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
OKI ELECTRIC IND CO LTD
12 patentsUS6377140B1Apr 23, 2002
Saw resonator filter with bridged-T configuration
OKI ELECTRIC IND CO LTD170 citations98
US6937113B2Aug 30, 2005
Branching filter package
OKI ELECTRIC IND CO LTD20 citations92
US6870440B2Mar 22, 2005
Saw branching filter with a branching filter circuit formed on the package
OKI ELECTRIC IND CO LTD17 citations92
US6677835B2Jan 13, 2004
Saw filter with an attenuation pole including a band-pass ladder type of saw filter having a saw resonator
OKI ELECTRIC IND CO LTD35 citations92
US6489861B2Dec 3, 2002
Antenna duplexer with divided and grounded transmission line
OKI ELECTRIC IND CO LTD28 citations92
US6373350B1Apr 16, 2002
Branching filter with saw-resonator transmitting and receiving filters in separate packages and receiving-branch lines in both packages
OKI ELECTRIC IND CO LTD20 citations92
US6222426B1Apr 24, 2001
Branching filter with a composite circuit of an LC circuit and a serial arm saw resonator
OKI ELECTRIC IND CO LTD41 citations92
US6208223B1Mar 27, 2001
Receiving filter of a saw separator with greater electrode interdigitated width in first stage parallel resonator
OKI ELECTRIC IND CO LTD25 citations91
US7479845B2Jan 20, 2009
Branching filter package
OKI ELECTRIC IND CO LTD8 citations84
US6911878B2Jun 28, 2005
Acoustic wave branching filter having transmitting filter with optimal power handling
OKI ELECTRIC IND CO LTD2 citations61
US7420440B2Sep 2, 2008
Transmitting filter including SAW resonators
OKI ELECTRIC IND CO LTD0 citations51
US7034392B2Apr 25, 2006
Duplexer
OKI ELECTRIC IND CO LTD0 citations38
TOSHIBA KK
6 patentsUS5289902AMar 1, 1994
Elevator
TOSHIBA KK56 citations96
US6488124B1Dec 3, 2002
Elevator
TOSHIBA KK58 citations94
US6640935B1Nov 4, 2003
Elevator having vibration damping to attenuate vibration transfer to an elevator cage
TOSHIBA KK25 citations92
US6336522B1Jan 8, 2002
Deck elevator car with speed control
TOSHIBA KK20 citations90
US6902040B2Jun 7, 2005
Elevator car
TOSHIBA KK8 citations66
US6119816ASep 19, 2000
Emergency stop releasing method for elevator
TOSHIBA KK0 citations52
NIPPON PISTON RING CO LTD
6 patentsUS4612695ASep 23, 1986
Method of manufacturing a hollow cam shaft
NIPPON PISTON RING CO LTD22 citations81
US5007956AApr 16, 1991
Assembled cam shaft
NIPPON PISTON RING CO LTD12 citations74
US4696696ASep 29, 1987
Sintered alloy having improved wear resistance property
NIPPON PISTON RING CO LTD10 citations74
US4891972AJan 9, 1990
Ultrasonic joint inspection device and method
NIPPON PISTON RING CO LTD5 citations63
US4730581AMar 15, 1988
Hollow cam shaft
NIPPON PISTON RING CO LTD4 citations54
US4817420AApr 4, 1989
Method and device for examination of a joint of a ultrasonic joint inspection device and method
NIPPON PISTON RING CO LTD1 citations52
TOSHIBA ELEVATOR KK
5 patentsUS7017714B2Mar 28, 2006
Double deck elevator
TOSHIBA ELEVATOR KK21 citations92
US7014013B2Mar 21, 2006
Guiding devices of elevator
TOSHIBA ELEVATOR KK9 citations74
US7090056B2Aug 15, 2006
Double deck elevator that controls a velocity change during inter-cage distance adjustment
TOSHIBA ELEVATOR KK10 citations72
US7178638B2Feb 20, 2007
Car door apparatus of elevator
TOSHIBA ELEVATOR KK9 citations70
US7243760B2Jul 17, 2007
Elevator door unit having mechanism to release lock unit manually in emergency
TOSHIBA ELEVATOR KK0 citations49
OKI SEMICONDUCTOR CO LTD
4 patentsUS7893794B2Feb 22, 2011
Branching filter package
OKI SEMICONDUCTOR CO LTD6 citations73
US7679472B2Mar 16, 2010
Branching filter package
OKI SEMICONDUCTOR CO LTD3 citations73
US7602263B2Oct 13, 2009
Branching filter package
OKI SEMICONDUCTOR CO LTD3 citations62
US7859362B2Dec 28, 2010
Branching filter package
OKI SEMICONDUCTOR CO LTD0 citations52