Inventor
UTSUNOMIYA MASAO
JP22 patents
⚠️ This page may combine multiple inventors who share the name “UTSUNOMIYA MASAO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HONDA MOTOR CO LTD
19 patentsUS7507490B2Mar 24, 2009
Metal separator for fuel cell and its production method
HONDA MOTOR CO LTD19 citations92
US6884363B2Apr 26, 2005
Method of surface treatment for stainless steel product for fuel cell
HONDA MOTOR CO LTD16 citations84
US7214440B2May 8, 2007
Metallic separator for fuel cell and production method for the same
HONDA MOTOR CO LTD6 citations73
US6858339B2Feb 22, 2005
Separator for fuel cell and fuel cell
HONDA MOTOR CO LTD10 citations73
US6670066B2Dec 30, 2003
Separator for fuel cell
HONDA MOTOR CO LTD7 citations70
US7838171B2Nov 23, 2010
Metal separator for fuel cell and its production method
HONDA MOTOR CO LTD5 citations62
US7325432B2Feb 5, 2008
Method for manufacturing fuel cell metallic separator
HONDA MOTOR CO LTD6 citations62
US7147956B2Dec 12, 2006
Fuel cell and separator therefor
HONDA MOTOR CO LTD4 citations62
US7049022B2May 23, 2006
Metal separator for fuel cell and production method therefor
HONDA MOTOR CO LTD2 citations62
US7001683B2Feb 21, 2006
Separator for fuel cell and method for producing the same
HONDA MOTOR CO LTD3 citations62
US7981570B2Jul 19, 2011
Fuel cell
HONDA MOTOR CO LTD3 citations61
US7722977B2May 25, 2010
Fuel cell stack comprising current collector provided at least at one fluid passage
HONDA MOTOR CO LTD3 citations61
US7166386B2Jan 23, 2007
Separator for fuel cell and method for preparation thereof
HONDA MOTOR CO LTD1 citations52
US7014938B2Mar 21, 2006
Separator for fuel cell
HONDA MOTOR CO LTD0 citations52
US6953636B2Oct 11, 2005
Press separator for fuel cell made of stainless steel press formed in contiguous corrugations
HONDA MOTOR CO LTD1 citations52
US6861172B2Mar 1, 2005
Current-collecting structure in fuel cell system
HONDA MOTOR CO LTD0 citations52
US9647278B2May 9, 2017
Metal separator for fuel cells and manufacturing method thereof
HONDA MOTOR CO LTD0 citations46
US7475600B2Jan 13, 2009
Method of and apparatus for evaluating elastic member quality
HONDA MOTOR CO LTD0 citations45
US10529998B2Jan 7, 2020
Fuel cell stack, and method of determining maintenance time of fuel cell stack
HONDA MOTOR CO LTD0 citations33