Inventor
YAMASHITA MASAYASU
JP30 patents
⚠️ This page may combine multiple inventors who share the name “YAMASHITA MASAYASU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
KOITO MFG CO LTD
27 patentsUS5828177AOct 27, 1998
Light circuit for discharge lamp
KOITO MFG CO LTD60 citations96
US5629588AMay 13, 1997
Lighting circuit utilizing DC power for a discharge lamp utilizing AC power
KOITO MFG CO LTD60 citations96
US5486740AJan 23, 1996
Lighting circuit for vehicular discharge lamp having DC/AC converter
KOITO MFG CO LTD56 citations96
US5485059AJan 16, 1996
Lighting circuit for vehicular discharge lamp
KOITO MFG CO LTD67 citations96
US6153987ANov 28, 2000
Lighting circuit for discharge lamp
KOITO MFG CO LTD41 citations93
US6034487AMar 7, 2000
Lighting circuit for discharge lamp
KOITO MFG CO LTD21 citations93
US5936361AAug 10, 1999
Discharge lamp lighting circuit with lighting condition detector
KOITO MFG CO LTD20 citations93
US5925983AJul 20, 1999
Circuit for inhibiting the supply of power to a discharge lamp
KOITO MFG CO LTD19 citations93
US5705898AJan 6, 1998
Lighting circuit for discharge lamp which restricts inversion of output voltage polarity
KOITO MFG CO LTD26 citations93
US5663613ASep 2, 1997
Lighting circuit for discharge lamp
KOITO MFG CO LTD55 citations93
US5422548AJun 6, 1995
Cut-off vehicular discharge lamp circuit having wait and monitor modes
KOITO MFG CO LTD47 citations93
US6340870B1Jan 22, 2002
Lighting circuit for discharge lamp
KOITO MFG CO LTD49 citations92
US6087776AJul 11, 2000
Discharge lamp lighting circuit with protection circuit
KOITO MFG CO LTD23 citations92
US6002215ADec 14, 1999
Lighting circuit for discharge lamp
KOITO MFG CO LTD43 citations92
US5973457AOct 26, 1999
Lighting circuit for discharge lamp
KOITO MFG CO LTD25 citations92
US5939835AAug 17, 1999
Discharge lamp lighting device with power system, control system and power source system
KOITO MFG CO LTD35 citations92
US5907224AMay 25, 1999
Abnormality detecting circuit for discharge lamp with delayed interruption for undervoltage
KOITO MFG CO LTD28 citations92
US5572094ANov 5, 1996
Lighting circuit for discharge lamp
KOITO MFG CO LTD40 citations92
US5565743AOct 15, 1996
Lighting circuit for discharge lamp
KOITO MFG CO LTD33 citations92
US5514935AMay 7, 1996
Lighting circuit for vehicular discharge lamp
KOITO MFG CO LTD48 citations92
US5449973ASep 12, 1995
Lighting circuit for vehicular discharge lamp
KOITO MFG CO LTD44 citations92
US6034490AMar 7, 2000
Lighting circuit for discharge lamp
KOITO MFG CO LTD15 citations74
US5914566AJun 22, 1999
Lighting circuit for applying a negative AC voltage to a discharge lamp
KOITO MFG CO LTD16 citations74
US5783908AJul 21, 1998
Lighting circuit wherein the abnormality detection circuit gets its power directly from the auxiliary power supply section
KOITO MFG CO LTD16 citations74
US5438480AAug 1, 1995
Printed circuit board and electronic parts to be mounted thereon
KOITO MFG CO LTD16 citations74
US5382876AJan 17, 1995
Cord connection structure for connecting a ballast circuit and a starter circuit
KOITO MFG CO LTD16 citations73
US6175190B1Jan 16, 2001
Discharge-lamp lighting circuit
KOITO MFG CO LTD5 citations62
PIONEER ELECTRONIC CORP
3 patentsUS4926485AMay 15, 1990
Output level control apparatus
PIONEER ELECTRONIC CORP241 citations99
US5016113AMay 14, 1991
Apparatus for reproducing and processing picture information including graphic codes from a recording medium
PIONEER ELECTRONIC CORP55 citations93
US4994925AFeb 19, 1991
Method of recording and reproducing picture information, recording medium, and recording medium playing apparatus
PIONEER ELECTRONIC CORP15 citations74