Inventor
HIRAO HARUNORI
JP18 patents
⚠️ This page may combine multiple inventors who share the name “HIRAO HARUNORI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NIPPON CATALYTIC CHEM IND
16 patentsUS7332624B2Feb 19, 2008
Method for production of acrylic acid
NIPPON CATALYTIC CHEM IND17 citations84
US7038079B2May 2, 2006
Method for production of acrylic acid
NIPPON CATALYTIC CHEM IND11 citations84
US6848501B2Feb 1, 2005
Method for preventing plate type heat exchanger from blockage
NIPPON CATALYTIC CHEM IND16 citations83
US7109372B2Sep 19, 2006
Method for production of acrylic acid
NIPPON CATALYTIC CHEM IND7 citations73
US6888025B2May 3, 2005
Method for absorbing acrylic acid and method for purifying acrylic acid
NIPPON CATALYTIC CHEM IND10 citations73
US6713648B2Mar 30, 2004
Method for absorbing acrylic acid and method for purifying acrylic acid
NIPPON CATALYTIC CHEM IND9 citations73
US7511172B2Mar 31, 2009
Method for production of (meth)acrylic acid
NIPPON CATALYTIC CHEM IND6 citations72
US7151194B2Dec 19, 2006
Method for production of acrylic acid
NIPPON CATALYTIC CHEM IND9 citations72
US7429678B2Sep 30, 2008
Composite-oxide catalyst and process for production of acrylic acid using said catalyst
NIPPON CATALYTIC CHEM IND2 citations62
US7102030B2Sep 5, 2006
Method for managing operation of gas phase reaction apparatus
NIPPON CATALYTIC CHEM IND3 citations62
US6825381B2Nov 30, 2004
Method and apparatus for absorbing (meth) acrylic acid
NIPPON CATALYTIC CHEM IND3 citations62
US7332626B2Feb 19, 2008
Method for production of (meth) acrylic acid
NIPPON CATALYTIC CHEM IND3 citations61
US7321060B2Jan 22, 2008
Method for production of acrylic acid
NIPPON CATALYTIC CHEM IND4 citations61
US6566551B2May 20, 2003
Method for preventing effluent gas pipe from blocking
NIPPON CATALYTIC CHEM IND2 citations61
US7326810B2Feb 5, 2008
Method for starting up reactor
NIPPON CATALYTIC CHEM IND1 citations52
US7205429B2Apr 17, 2007
Method for disposal of waste from acrylic acid process and acrylic ester process
NIPPON CATALYTIC CHEM IND0 citations52