Inventor
OYANAGI HIROYUKI
JP37 patents
⚠️ This page may combine multiple inventors who share the name “OYANAGI HIROYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HONDA MOTOR CO LTD
10 patentsUS6523699B1Feb 25, 2003
Sulfonic acid group-containing polyvinyl alcohol, solid polymer electrolyte, composite polymer membrane, method for producing the same and electrode
HONDA MOTOR CO LTD102 citations98
US6124060ASep 26, 2000
Solid polymer electrolytes
HONDA MOTOR CO LTD128 citations97
US6986962B2Jan 17, 2006
Basic polymer electrolyte fuel cell
HONDA MOTOR CO LTD75 citations96
US6770393B2Aug 3, 2004
Proton conducting polymer, method for producing the same, solid polymer electrolyte and electrode
HONDA MOTOR CO LTD17 citations92
US6767664B2Jul 27, 2004
Proton conducting polymer, method for producing the same, solid polymer electrolyte and electrode
HONDA MOTOR CO LTD21 citations92
US6478987B1Nov 12, 2002
Proton conducting polymer, method for producing the same, solid polymer electrolyte and electrode
HONDA MOTOR CO LTD22 citations92
US6465120B1Oct 15, 2002
Composite polymer membrane, method for producing the same and solid polymer electrolyte membrane
HONDA MOTOR CO LTD35 citations92
US7101639B2Sep 5, 2006
Fuel cell electrocatalyst of Pt-Rh-Mo-Ni/Fe
HONDA MOTOR CO LTD12 citations84
US6833204B2Dec 21, 2004
Method of operating phosphoric acid fuel cell
HONDA MOTOR CO LTD8 citations74
US6303053B1Oct 16, 2001
Method for producing meta type polyaniline
HONDA MOTOR CO LTD5 citations63
NIPPON TELEGRAPH & TELEPHONE
7 patentsUS11114066B2Sep 7, 2021
Path display device and path display method
NIPPON TELEGRAPH & TELEPHONE0 citations59
US11853744B2Dec 26, 2023
Analysis device, analysis method, and analysis program
NIPPON TELEGRAPH & TELEPHONE0 citations52
US11720092B2Aug 8, 2023
Maintenance management system and data processing method
NIPPON TELEGRAPH & TELEPHONE0 citations49
US11296790B2Apr 5, 2022
Transmission system and wavelength resource management method
NIPPON TELEGRAPH & TELEPHONE0 citations49
US11201687B2Dec 14, 2021
Optical transmission system and wavelength allocation method
NIPPON TELEGRAPH & TELEPHONE0 citations49
US11196482B2Dec 7, 2021
Monitoring device and monitoring method
NIPPON TELEGRAPH & TELEPHONE0 citations49
US11057105B2Jul 6, 2021
Monitoring device and monitoring method
NIPPON TELEGRAPH & TELEPHONE0 citations49
TOYOTA MOTOR CO LTD
6 patentsUS7898208B2Mar 1, 2011
Control device and corresponding control method for a boost converter in a motor drive system
TOYOTA MOTOR CO LTD14 citations84
US11152884B2Oct 19, 2021
Driving system
TOYOTA MOTOR CO LTD2 citations73
US7525278B2Apr 28, 2009
Voltage conversion apparatus, power output apparatus, and control method of voltage converter
TOYOTA MOTOR CO LTD3 citations62
US11183962B2Nov 23, 2021
Driving system
TOYOTA MOTOR CO LTD0 citations61
US11108351B2Aug 31, 2021
Electric motor control device
TOYOTA MOTOR CO LTD0 citations59
US10259342B2Apr 16, 2019
Vehicle
TOYOTA MOTOR CO LTD1 citations55
SYMYX TECHNOLOGIES INC
4 patentsUS7662740B2Feb 16, 2010
Platinum-chromium-copper/nickel fuel cell catalyst
SYMYX TECHNOLOGIES INC19 citations91
US7608560B2Oct 27, 2009
Platinum-titanium-tungsten fuel cell catalyst
SYMYX TECHNOLOGIES INC12 citations83
US7422994B2Sep 9, 2008
Platinum-copper-tungsten fuel cell catalyst
SYMYX TECHNOLOGIES INC9 citations83
US7479343B2Jan 20, 2009
Platinum-indium-iron/tungsten/manganese fuel cell electrocatalyst
SYMYX TECHNOLOGIES INC4 citations63