Inventor
KAIZAWA HIROYUKI
JP21 patents
⚠️ This page may combine multiple inventors who share the name “KAIZAWA HIROYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ASTELLAS PHARMA INC
11 patentsUS7297698B2Nov 20, 2007
N-phenyl-(2R,5S) dimethylpiperazine derivative
ASTELLAS PHARMA INC7 citations73
US7666873B2Feb 23, 2010
N-phenyl-(2R,5S)dimethylpiperazine derivative
ASTELLAS PHARMA INC3 citations62
US7196080B2Mar 27, 2007
Phenylpyridinecarbonylpiperazinederivative
ASTELLAS PHARMA INC5 citations61
US10975091B2Apr 13, 2021
Pyridine derivative
ASTELLAS PHARMA INC0 citations59
US8822448B2Sep 2, 2014
Pyrazoloquinoline compound
ASTELLAS PHARMA INC2 citations59
US8815920B2Aug 26, 2014
Substituted amide compound
ASTELLAS PHARMA INC0 citations50
US8674096B2Mar 18, 2014
Substituted imidazo[1,5-a]quinoxalin-4-ones as phosphodiesterase 9 inhibitors
ASTELLAS PHARMA INC0 citations49
US8357688B2Jan 22, 2013
Substituted imidazo[1,5-a]quinoxalin-4(5H)-ones as PDE9 inhibitors
ASTELLAS PHARMA INC0 citations49
US10421762B2Sep 24, 2019
Pyridine derivative
ASTELLAS PHARMA INC0 citations48
US10059720B2Aug 28, 2018
Pyridine derivative
ASTELLAS PHARMA INC0 citations48
US8901126B2Dec 2, 2014
Substituted imidazo[1,5-A]quinoxalin-4-ones are useful for preventing or treating storage dysfunction, voiding dysfunction and bladder/urethral diseases
ASTELLAS PHARMA INC0 citations39
YAMANOUCHI PHARMA CO LTD
6 patentsUS6838457B2Jan 4, 2005
Fused heteroaryl derivatives
YAMANOUCHI PHARMA CO LTD99 citations98
US6608053B2Aug 19, 2003
Fused heteroaryl derivatives
YAMANOUCHI PHARMA CO LTD188 citations98
US6608056B1Aug 19, 2003
Fused heteroaryl derivatives
YAMANOUCHI PHARMA CO LTD87 citations98
US6403588B1Jun 11, 2002
Imidazopyridine derivatives
YAMANOUCHI PHARMA CO LTD147 citations98
US6770641B2Aug 3, 2004
Fused heteroaryl derivatives
YAMANOUCHI PHARMA CO LTD71 citations97
US6653320B2Nov 25, 2003
Imidazopyridine derivatives
YAMANOUCHI PHARMA CO LTD80 citations97