YO

Youichi Ohsawa

SC Shin-Etsu Chemical Co.: 87 patents #20 of 2,176Top 1%
NE Nec: 1 patents #7,889 of 14,502Top 55%
NT NTT: 1 patents #2,911 of 4,871Top 60%
📍 Joetsu, JP: #14 of 239 inventorsTop 6%
Overall (All Time): #18,459 of 4,157,543Top 1%
89
Patents All Time

Issued Patents All Time

Showing 26–50 of 89 patents

Patent #TitleCo-InventorsDate
8173354 Sulfonium salt, resist composition, and patterning process Masaki Ohashi 2012-05-08
8114571 Photoacid generator, resist composition, and patterning process Masaki Ohashi, Takeshi Kinsho, Takeru Watanabe 2012-02-14
8114570 Photoacid generator, resist composition, and patterning process Takeshi Kinsho, Takeru Watanabe, Koji Hasegawa, Masaki Ohashi 2012-02-14
8105748 Polymerizable anion-containing sulfonium salt and polymer, resist composition, and patterning process Masaki Ohashi, Takeshi Kinsho, Jun Hatakeyama, Seiichiro Tachibana 2012-01-31
8062828 Positive resist composition and patterning process Takeshi Kinsho, Masaki Ohashi, Seiichiro Tachibana, Takeru Watanabe, Jun Hatakeyama 2011-11-22
8057985 Polymerizable anion-containing sulfonium salt and polymer, resist composition, and patterning process Masaki Ohashi, Takeshi Kinsho, Jun Hatakeyama, Seiichiro Tachibana 2011-11-15
8048610 Sulfonium salt-containing polymer, resist composition, and patterning process Jun Hatakeyama, Seiichiro Tachibana, Takeshi Kinsho 2011-11-01
8039198 Sulfonium salt-containing polymer, resist composition, and patterning process Seiichiro Tachibana, Jun Hatakeyama, Masaki Ohashi 2011-10-18
8030515 Sulfonate salts and derivatives, photoacid generators, resist compositions, and patterning process Katsuhiro Kobayashi, Takeshi Kinsho, Takeru Watanabe 2011-10-04
8021822 Positive resist compositions and patterning process Takeshi Kinsho, Takeru Watanabe 2011-09-20
8017302 Positive resist compositions and patterning process Takeshi Kinsho, Takeru Watanabe 2011-09-13
7993811 Positive resist compositions and patterning process Takeshi Kinsho, Takeru Watanabe 2011-08-09
7977027 Resist composition and patterning process Takanobu Takeda, Osamu Watanabe, Satoshi Watanabe, Ryuji Koitabashi, Tamotsu Watanabe 2011-07-12
7928262 Sulfonate salts and derivatives, photoacid generators, resist compositions, and patterning process Katsuhiro Kobayashi, Takeshi Kinsho, Takeru Watanabe 2011-04-19
7919226 Sulfonate salts and derivatives, photoacid generators, resist compositions, and patterning process Takeru Watanabe, Takeshi Kinsho, Katsuhiro Kobayashi 2011-04-05
7871761 Resist lower layer material, resist lower layer substrate comprising the material and method for forming pattern Jun Hatakeyama, Toshihiko Fujii 2011-01-18
7670751 Photoacid generator, resist composition, and patterning process Masaki Ohashi, Takeru Watanabe, Takeshi Kinsho 2010-03-02
7629108 Nitrogen-containing organic compound, resist composition and patterning process Takeru Watanabe, Masaki Ohashi, Wataru Kusaki, Tomohiro Kobayashi 2009-12-08
7629106 Resist composition and patterning process using the same Jun Hatakeyama, Koji Hasegawa, Seiichiro Tachibana 2009-12-08
7569324 Sulfonate salts and derivatives, photoacid generators, resist compositions, and patterning process Katsuhiro Kobayashi, Takeshi Kinsho, Takeru Watanabe 2009-08-04
7569326 Sulfonium salt having polymerizable anion, polymer, resist composition, and patterning process Masaki Ohashi, Seiichiro Tachibana, Jun Hatakeyama, Takeru Watanabe 2009-08-04
7556909 Sulfonate salts and derivatives, photoacid generators, resist compositions, and patterning process Katsuhiro Kobayashi, Takeshi Kinsho, Takeru Watanabe, Masaki Ohashi 2009-07-07
7531290 Sulfonate salts and derivatives, photoacid generators, resist compositions, and patterning process Katsuhiro Kobayashi, Takeshi Kinsho, Takeru Watanabe 2009-05-12
7527912 Photoacid generators, resist compositions, and patterning process Takeru Watanabe, Koji Hasegawa, Masaki Ohashi 2009-05-05
7514202 Thermal acid generator, resist undercoat material and patterning process Takeru Watanabe, Jun Hatakeyama 2009-04-07