Inventor
KOIZUMI HIROYA
JP22 patents
⚠️ This page may combine multiple inventors who share the name “KOIZUMI HIROYA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
KOITO MFG CO LTD
13 patentsUS7339200B2Mar 4, 2008
Light-emitting diode and vehicular lamp
KOITO MFG CO LTD80 citations97
US7021805B2Apr 4, 2006
Vehicle lamp
KOITO MFG CO LTD82 citations97
US6951415B2Oct 4, 2005
Vehicle lamp
KOITO MFG CO LTD86 citations97
US7001054B2Feb 21, 2006
Vehicular lamp
KOITO MFG CO LTD13 citations84
US10072813B2Sep 11, 2018
Vehicular lamp having light guides extending in different directions
KOITO MFG CO LTD7 citations83
US7201503B2Apr 10, 2007
Vehicular lamp including hemispherical translucent member with fan-shaped zones and lens elements
KOITO MFG CO LTD7 citations74
US9862301B2Jan 9, 2018
Vehicular rear panel
KOITO MFG CO LTD4 citations72
US9669754B2Jun 6, 2017
Turn signal lamp
KOITO MFG CO LTD6 citations71
US11754243B2Sep 12, 2023
Automotive lamp
KOITO MFG CO LTD0 citations62
US8029175B2Oct 4, 2011
Vehicle lighting apparatus
KOITO MFG CO LTD3 citations62
US11092744B2Aug 17, 2021
Three-dimensional surface display device disposed on a vehicle and vehicle display device having a three-dimensional surface display device
KOITO MFG CO LTD0 citations61
US12296676B2May 13, 2025
Vehicle communication system, vehicle module, front composite module, and vehicle lamp
KOITO MFG CO LTD0 citations56
US11584293B2Feb 21, 2023
Vehicle communication system, vehicle module, front composite module, and vehicle lamp
KOITO MFG CO LTD1 citations56
KOIZUMI HIROYA
7 patentsUS8292480B2Oct 23, 2012
Lamp including main reflector, sub-reflector and LED assembly
KOIZUMI HIROYA20 citations89
US8974101B2Mar 10, 2015
Vehicular lamp
KOIZUMI HIROYA10 citations83
US8591083B2Nov 26, 2013
Vehicular lamp
KOIZUMI HIROYA18 citations83
US8292455B2Oct 23, 2012
Vehicular lamp
KOIZUMI HIROYA3 citations62
US8262269B2Sep 11, 2012
License plate lamp
KOIZUMI HIROYA5 citations62
US8485704B2Jul 16, 2013
Lamp unit and vehicle lamp
KOIZUMI HIROYA4 citations61
US9341336B2May 17, 2016
Vehicle headlamp
KOIZUMI HIROYA1 citations51