Inventor
NAKAYAMA KEIJI
JP18 patents
⚠️ This page may combine multiple inventors who share the name “NAKAYAMA KEIJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
DAIICHI SEIYAKU CO
5 patentsUS6872823B1Mar 29, 2005
Process for producing benzoxazine derivative and production intermediate thereof
DAIICHI SEIYAKU CO6 citations71
US7189847B2Mar 13, 2007
Process for producing benzoxazine derivative and production intermediate thereof
DAIICHI SEIYAKU CO3 citations60
US7087778B2Aug 8, 2006
Process for producing benzoxazine derivative and production intermediate thereof
DAIICHI SEIYAKU CO0 citations49
US7074837B2Jul 11, 2006
Processes for preparation of bicyclic compounds and intermediates therefor
DAIICHI SEIYAKU CO0 citations49
US7199260B2Apr 3, 2007
Process for reductive dehalogenation
DAIICHI SEIYAKU CO1 citations48
SHARP KK
3 patentsDAIICHI SANKYO CO LTD
3 patentsUS10030028B2Jul 24, 2018
Method for producing a spirooxindole derivative
DAIICHI SANKYO CO LTD4 citations71
US11884678B2Jan 30, 2024
Method for producing a spirooxindole derivative
DAIICHI SANKYO CO LTD0 citations60
US10851111B2Dec 1, 2020
Method for producing a spirooxindole derivative
DAIICHI SANKYO CO LTD1 citations60