Keiichi Masunaga

Inventor

Add to Portfolio

Stats

Details

Work History

Patent OwnerApplications FiledYear
INTERNATIONAL BUSINESS MACHINES CORPORATION
2
1
2012
2014
SHIN-ETSU POLYMER CO., LTD.
2
2013
SHIN-ETSU CHEMICAL CO., LTD.
2
4
4
18
18
10
4
11
9
10
3
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017

Inventor Addresses

AddressDuration
Joetsu, JPSep 25, 12 - Dec 10, 24
Joetsu-shi, JPOct 02, 08 - Apr 03, 25
Joetsu-shi, Niigata-ken, JPDec 11, 08 - Dec 11, 08
Jyoetsu, JPJan 14, 10 - May 15, 18
Jyoetsu-shi, JPMay 21, 15 - May 21, 15
Niigata, JPApr 17, 08 - Mar 10, 09

Technology Profile

Technology Matters
C07C: ACYCLIC OR CARBOCYCLIC COMPOUNDS 19
C07D: HETEROCYCLIC COMPOUNDS 5
C08F: MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS 33

See more…

Patents / Publication

Patents / Publication #Year of Publication / IssuedTitleCitations
2025/0110,4002025ONIUM SALT, CHEMICALLY AMPLIFIED POSITIVE RESIST COMPOSITION, AND RESIST PATTERN FORMING PROCESS0
2025/0068,0672025ONIUM SALT, CHEMICALLY AMPLIFIED POSITIVE RESIST COMPOSITION, AND RESIST PATTERN FORMING PROCESS0
2025/0053,0892025CHEMICALLY AMPLIFIED POSITIVE RESIST COMPOSITION AND RESIST PATTERN FORMING PROCESS0
2025/0028,2442025ACETAL MODIFIER, POLYMER, CHEMICALLY AMPLIFIED POSITIVE RESIST COMPOSITION, AND RESIST PATTERN FORMING PROCESS0
2025/0004,3712025CHEMICALLY AMPLIFIED POSITIVE RESIST COMPOSITION AND RESIST PATTERN FORMING PROCESS0

See more…


We are sorry but your current selection exceeds the maximum number of portfolios (0) for this membership level.
> Upgrade to our Level for up to -1 portfolios!.