Inventor
OTSUKA SHIGERU
JP26 patents
⚠️ This page may combine multiple inventors who share the name “OTSUKA SHIGERU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NEC CORP
8 patentsUS4577315AMar 18, 1986
Power saving system for time-division multiple access radiocommunication network
NEC CORP75 citations96
US5818302AOct 6, 1998
Automatic frequency control oscillation circuit
NEC CORP21 citations92
US5519710AMay 21, 1996
Network synchronization for TDMA cellular communication using signals from mobile stations in neighboring cells
NEC CORP49 citations92
US5425031AJun 13, 1995
Mobile radio communication system
NEC CORP21 citations92
US4759016AJul 19, 1988
TDMA communication system having common local path medium and local time slot for intraoffice calls
NEC CORP38 citations92
US5694092ADec 2, 1997
Voltage-controlled oscillator including first and second varactors having differing rates of change in capacitance value
NEC CORP20 citations91
US5140589AAug 18, 1992
Battery saving system for interrupting power supplies at intervals variable with traffic pattern
NEC CORP19 citations74
US4490818ADec 25, 1984
Repeater station for use in a radio relay system to protect time deviations of time slots
NEC CORP16 citations74
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD
5 patentsUS6132171AOct 17, 2000
Blower and method for molding housing thereof
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD49 citations96
US5707205AJan 13, 1998
Fan device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD70 citations96
US6796768B2Sep 28, 2004
Blower and method for molding housing thereof
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD14 citations92
US6254342B1Jul 3, 2001
Air supplying device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD34 citations92
US6332755B1Dec 25, 2001
Blower and method for molding housing thereof
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD13 citations82
HITACHI POWDERED METALS
5 patentsUS5932946AAug 3, 1999
Porous bearing system having internal grooves and electric motor provided with the same
HITACHI POWDERED METALS64 citations96
US5895119AApr 20, 1999
Composite porous bearing
HITACHI POWDERED METALS28 citations92
US5810479ASep 22, 1998
Hydrodynamic thrust porous bearing
HITACHI POWDERED METALS30 citations92
US5746516AMay 5, 1998
Porous bearing system having internal grooves and electric motor provided with the same
HITACHI POWDERED METALS25 citations92
US6119346ASep 19, 2000
Composite porous bearing and method of making same
HITACHI POWDERED METALS13 citations74