Inventor
TOKUNAGA KENICHI
JP6 patents
⚠️ This page may combine multiple inventors who share the name “TOKUNAGA KENICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NISSAN CHEMICAL IND LTD
5 patentsUS5880309AMar 9, 1999
Phenylphosphonic acid derivative and production process therefor
NISSAN CHEMICAL IND LTD28 citations91
US7038056B2May 2, 2006
Method for preparing a 7-quinolinyl-3,5-dihydroxyhept-6-enoate
NISSAN CHEMICAL IND LTD0 citations50
US5847199ADec 8, 1998
Derivative of phosphonic acid and process for the preparation thereof
NISSAN CHEMICAL IND LTD0 citations49
US6222074B1Apr 24, 2001
Process for preparation of 4,6-diaminoresorcinol or salts thereof
NISSAN CHEMICAL IND LTD1 citations47
US5962740AOct 5, 1999
Processes for producing 4,6-bis (substituted)phenylazoresorcinols
NISSAN CHEMICAL IND LTD0 citations38