Inventor
TATSUKAWA MASASHI
JP49 patents
⚠️ This page may combine multiple inventors who share the name “TATSUKAWA MASASHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
KOITO MFG CO LTD
42 patentsUS7097334B2Aug 29, 2006
Light source unit for vehicular lamp
KOITO MFG CO LTD65 citations98
US6948836B2Sep 27, 2005
Light source unit having orthogonally disposed semiconductor light emitter
KOITO MFG CO LTD100 citations98
US7387416B2Jun 17, 2008
Vehicular illumination lamp with primary and secondary light sources
KOITO MFG CO LTD30 citations93
US7255467B2Aug 14, 2007
Vehicular headlamp and light emission module
KOITO MFG CO LTD16 citations93
US7168836B2Jan 30, 2007
Vehicle illumination lamp
KOITO MFG CO LTD20 citations93
US7070312B2Jul 4, 2006
Lamp unit and vehicle headlamp using the same
KOITO MFG CO LTD38 citations93
US7618174B2Nov 17, 2009
Vehicle lamp
KOITO MFG CO LTD22 citations92
US7387417B2Jun 17, 2008
Vehicular headlamp
KOITO MFG CO LTD27 citations92
US7261448B2Aug 28, 2007
Vehicular headlamp
KOITO MFG CO LTD36 citations92
US7201506B2Apr 10, 2007
Vehicular headlamp with semiconductor light emitting elements and electric discharge bulb
KOITO MFG CO LTD28 citations92
US7168837B2Jan 30, 2007
Vehicular headlamp and semiconductor light emitting element
KOITO MFG CO LTD21 citations92
US7131759B2Nov 7, 2006
Vehicular lamp and light source module
KOITO MFG CO LTD25 citations92
US6951416B2Oct 4, 2005
Vehicle headlamp
KOITO MFG CO LTD46 citations92
US6891333B2May 10, 2005
Vehicle headlamp
KOITO MFG CO LTD44 citations92
US6882110B2Apr 19, 2005
Headlamp for vehicle
KOITO MFG CO LTD48 citations92
US6422726B1Jul 23, 2002
Vehicle headlamp
KOITO MFG CO LTD20 citations90
US7922375B2Apr 12, 2011
Vehicle lighting device having light transmitting member with annular mirror-finish
KOITO MFG CO LTD9 citations84
US7736036B2Jun 15, 2010
Lamp unit of vehicle headlamp
KOITO MFG CO LTD13 citations84
US7736039B2Jun 15, 2010
Vehicle lamp
KOITO MFG CO LTD9 citations84
US7690818B2Apr 6, 2010
Vehicle headlamp
KOITO MFG CO LTD16 citations84
US7527405B2May 5, 2009
Infrared projector for vehicle
KOITO MFG CO LTD9 citations84
US7357546B2Apr 15, 2008
Vehicular headlamp employing semiconductor light-emitting element having improved light distribution
KOITO MFG CO LTD15 citations84
US7210834B2May 1, 2007
Vehicular lamp and light source module
KOITO MFG CO LTD14 citations84
US7128453B2Oct 31, 2006
Vehicular headlamp
KOITO MFG CO LTD14 citations84
US6837601B2Jan 4, 2005
Lighting system for vehicle
KOITO MFG CO LTD14 citations84
US6634778B2Oct 21, 2003
Vehicular headlamp for controlling light distribution of vehicular headlamp having improved synthesized light distribution pattern
KOITO MFG CO LTD15 citations84
US6578996B1Jun 17, 2003
Method of designing reflective surface of reflector in vehicle lamp
KOITO MFG CO LTD15 citations84
US6817744B2Nov 16, 2004
Vehicle lamp
KOITO MFG CO LTD9 citations74
US6168297B1Jan 2, 2001
Vehicular headlamp assembly with discharge bulb and glare protection film
KOITO MFG CO LTD13 citations74
US5746491AMay 5, 1998
Head lamp for vehicles
KOITO MFG CO LTD10 citations74
US10113702B2Oct 30, 2018
Vehicle lighting apparatus
KOITO MFG CO LTD3 citations73
US9481291B2Nov 1, 2016
Vehicle lamp
KOITO MFG CO LTD5 citations73
US8960978B2Feb 24, 2015
Vehicular lamp
KOITO MFG CO LTD4 citations73
US11067244B2Jul 20, 2021
Vehicle headlamp having a high beam light source and an inclined laser diode
KOITO MFG CO LTD0 citations63
US7631997B2Dec 15, 2009
Vehicular headlamp and light emission module
KOITO MFG CO LTD4 citations63
US7153009B2Dec 26, 2006
Vehicular headlamp
KOITO MFG CO LTD6 citations63
US5695276ADec 9, 1997
Automobile headlamp
KOITO MFG CO LTD3 citations63
US6821004B2Nov 23, 2004
Headlamp for vehicle
KOITO MFG CO LTD4 citations61
US10302268B2May 28, 2019
Vehicular headlamp
KOITO MFG CO LTD0 citations52
US6565250B2May 20, 2003
Method of designing reflective surface of reflector in vehicle lamp
KOITO MFG CO LTD1 citations52
US9772082B2Sep 26, 2017
Vehicular lamp
KOITO MFG CO LTD0 citations42
US9979154B2May 22, 2018
Semiconductor laser device
KOITO MFG CO LTD0 citations41