Inventor
YOKOYAMA KAZUHIRO
JP23 patents
⚠️ This page may combine multiple inventors who share the name “YOKOYAMA KAZUHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ASTELLAS PHARMA INC
6 patentsUSRE49111EJun 21, 2022
2-acylaminothiazole derivative or salt thereof
ASTELLAS PHARMA INC3 citations72
US8367702B2Feb 5, 2013
Quinolone derivative
ASTELLAS PHARMA INC6 citations71
US7790884B2Sep 7, 2010
Acylaminopiperidine compound
ASTELLAS PHARMA INC2 citations62
US9951060B2Apr 24, 2018
2-acylaminothiazole derivative or salt thereof
ASTELLAS PHARMA INC0 citations51
US9637451B2May 2, 2017
Indole compound
ASTELLAS PHARMA INC0 citations51
US9562044B2Feb 7, 2017
2-acylaminothiazole derivative or salt thereof
ASTELLAS PHARMA INC0 citations51
ALPS ELECTRIC CO LTD
5 patentsUS6284988B1Sep 4, 2001
Keyboard apparatus the operation side of which can be illuminated
ALPS ELECTRIC CO LTD88 citations97
US4771146ASep 13, 1988
Keyboard key top mounting structure
ALPS ELECTRIC CO LTD37 citations92
US7094984B2Aug 22, 2006
Key switch and keyboard input device using the same
ALPS ELECTRIC CO LTD18 citations84
US6225586B1May 1, 2001
Thin keyboard apparatus
ALPS ELECTRIC CO LTD14 citations73
US6087604AJul 11, 2000
Thin keyboard
ALPS ELECTRIC CO LTD9 citations72
NIPPON STEEL CORP
3 patentsUS4991501AFeb 12, 1991
Dampening water feed roller for planographic printing press
NIPPON STEEL CORP29 citations91
US4391702AJul 5, 1983
Method for classification of coals for coke production
NIPPON STEEL CORP19 citations77
US4310412AJan 12, 1982
Method for classification of coals for coke production
NIPPON STEEL CORP11 citations65