Inventor
KUMAGAI MASASHI
JP24 patents
⚠️ This page may combine multiple inventors who share the name “KUMAGAI MASASHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NIKKO MATERIALS CO LTD
15 patentsUS6710181B2Mar 23, 2004
Imidazole/organic monocarboxylic acid salt derivative reaction product, method for producing the same, and surface treatment agent, resin additive and resin composition using the same
NIKKO MATERIALS CO LTD37 citations92
US7651783B2Jan 26, 2010
Surface treated copper film
NIKKO MATERIALS CO LTD25 citations90
US6835241B2Dec 28, 2004
Surface treatment for copper foil
NIKKO MATERIALS CO LTD37 citations90
US7005055B2Feb 28, 2006
Copper electrolytic solution containing amine compound having specific skeleton and organosulfur compound as additives, and electrolytic copper foil produced using the same
NIKKO MATERIALS CO LTD11 citations83
US7094845B2Aug 22, 2006
Basic silane coupling agent organic carboxylate composition, method for producing the same, and epoxy resin composition containing the same
NIKKO MATERIALS CO LTD7 citations73
US6916865B2Jul 12, 2005
Organic carboxylic acid salt composition, process for preparation thereof and additives for epoxy resins
NIKKO MATERIALS CO LTD6 citations73
US7777078B2Aug 17, 2010
Copper electrolytic solution and electrolytic copper foil produced therewith
NIKKO MATERIALS CO LTD4 citations62
US7432335B2Oct 7, 2008
Basic silane coupling agent organic carboxylate composition, method for producing the same, and epoxy resin composition containing the same
NIKKO MATERIALS CO LTD4 citations62
US7378160B2May 27, 2008
Copper electrolytic solution containing amine compound having specific skeleton and organosulfur compound as additives, and electrolytic copper foil produced using the same
NIKKO MATERIALS CO LTD1 citations62
US7144491B2Dec 5, 2006
Copper electrolytic solution containing organic sulfur compound and quaternary amine compound of specified skeleton as additives and electrolytic copper foil produced therewith
NIKKO MATERIALS CO LTD5 citations62
US6605356B2Aug 12, 2003
Metal surface treatment agent, and metal material coated with same
NIKKO MATERIALS CO LTD5 citations62
US7678257B2Mar 16, 2010
Copper electrolytic solution containing quaternary amine compound polymer with specific skeleton and organo-sulfur compound as additives, and electrolytic copper foil manufactured using the same
NIKKO MATERIALS CO LTD1 citations51
US7109273B2Sep 19, 2006
Solid silane coupling agent composition, process for producing the same, and resin composition containing the same
NIKKO MATERIALS CO LTD0 citations51
US6921577B2Jul 26, 2005
Water-based metal surface treatment agent
NIKKO MATERIALS CO LTD1 citations51
US7300501B2Nov 27, 2007
Electroless gold plating liquid
NIKKO MATERIALS CO LTD0 citations50
NIPPON MINING CO
3 patentsUS5258522ANov 2, 1993
Imidazole-silane compounds and metal surface finishing agent containing the same
NIPPON MINING CO21 citations89
US7824534B2Nov 2, 2010
Copper electrolytic solution containing as additive compound having specific skeleton, and electrolytic copper foil manufactured therewith
NIPPON MINING CO1 citations52
US7771835B2Aug 10, 2010
Copper electrolytic solution containing quaternary amine compound with specific skeleton and oragno-sulfur compound as additives, and electrolytic copper foil manufactured using the same
NIPPON MINING CO1 citations51