Inventor
WASHIO YASUSHI
JP13 patents
⚠️ This page may combine multiple inventors who share the name “WASHIO YASUSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TOKYO OHKA KOGYO CO LTD
8 patentsUS6838229B2Jan 4, 2005
Chemically amplified negative photoresist composition for the formation of thick films, photoresist base material and method of forming bumps using the same
TOKYO OHKA KOGYO CO LTD22 citations92
US9091916B2Jul 28, 2015
Positive-type photoresist composition, photoresist laminate, method for producing photoresist pattern, and method for producing connecting terminal
TOKYO OHKA KOGYO CO LTD2 citations61
US7879525B2Feb 1, 2011
Chemically amplified photoresist composition, laminated product, and connection element
TOKYO OHKA KOGYO CO LTD1 citations51
US7846640B2Dec 7, 2010
Developer composition for resists and method for formation of resist pattern
TOKYO OHKA KOGYO CO LTD1 citations51
US7598014B2Oct 6, 2009
Thick film photoresist composition and method of forming resist pattern
TOKYO OHKA KOGYO CO LTD1 citations51
US7335465B2Feb 26, 2008
Developer composition for resists and method for formation of resist pattern
TOKYO OHKA KOGYO CO LTD1 citations51
US9244354B2Jan 26, 2016
Method for producing thick film photoresist pattern
TOKYO OHKA KOGYO CO LTD1 citations47
US9557651B2Jan 31, 2017
Chemically amplified positive-type photosensitive resin composition
TOKYO OHKA KOGYO CO LTD0 citations39
SHOWA ALUMINUM CORP
2 patentsUS6000886ADec 14, 1999
Entry board for drilling small holes, a method of making the same and a method for drilling small holes through a printed circuit board by using said entry board
SHOWA ALUMINUM CORP25 citations89
US6214135B1Apr 10, 2001
Entry board for drilling small holes, a method of making the same and a method for drilling small holes through a printed circuit board by using said entry board
SHOWA ALUMINUM CORP4 citations59
WASHIO YASUSHI
2 patentsUS8507180B2Aug 13, 2013
Chemically amplified positive-type photoresist composition for thick film, chemically amplified dry film for thick film, and method for production of thick film resist pattern
WASHIO YASUSHI7 citations66
US8455058B2Jun 4, 2013
Resin composition and coating method using the same
WASHIO YASUSHI0 citations46