KM

Keiichi Masunaga

SC Shin-Etsu Chemical Co.: 61 patents #47 of 2,176Top 3%
IBM: 3 patents #26,272 of 70,183Top 40%
SC Shin-Etsu Polymer Co.: 1 patents #156 of 269Top 60%
📍 Joetsu, JP: #25 of 239 inventorsTop 15%
Overall (All Time): #36,659 of 4,157,543Top 1%
62
Patents All Time

Issued Patents All Time

Showing 1–25 of 62 patents

Patent #TitleCo-InventorsDate
12429772 Chemically amplified resist composition, photomask blank, method for forming resist pattern, and method for producing polymer compound Kenji Funatsu, Masaaki Kotake, Naoya Inoue 2025-09-30
12164231 Chemically amplified positive resist composition and resist pattern forming process Masaaki Kotake, Satoshi Watanabe, Masaki Ohashi 2024-12-10
12164227 Chemically amplified negative resist composition and resist pattern forming process Satoshi Watanabe, Masaaki Kotake, Masaki Ohashi 2024-12-10
11852974 Conductive polymer composition, coated product and patterning process Takayuki Nagasawa, Masaaki Kotake, Satoshi Watanabe 2023-12-26
11548844 Monomer, polymer, negative resist composition, photomask blank, and resist pattern forming process Daisuke Domon, Masayoshi Sagehashi, Masaaki Kotake, Naoya Inoue, Satoshi Watanabe 2023-01-10
11500285 Multifunctional polymers Luisa D. Bozano, Daisuke Domon, Yoshio Kawai, Martha I. Sanchez, Daniel P. Sanders +3 more 2022-11-15
11429023 Onium salt, negative resist composition, and resist pattern forming process Daisuke Domon, Naoya Inoue, Masaki Ohashi, Masaaki Kotake 2022-08-30
11231650 Chemically amplified negative resist composition and resist pattern forming process Masaaki Kotake, Satoshi Watanabe 2022-01-25
11131926 Resist composition and resist patterning process Takahiro Suzuki, Daisuke Domon, Masaaki Kotake, Satoshi Watanabe 2021-09-28
11124477 Sulfonium compound, positive resist composition, and resist pattern forming process Naoya Inoue, Masaki Ohashi, Daisuke Domon, Masaaki Kotake 2021-09-21
10725377 Chemically amplified negative resist composition and resist pattern forming process Masaaki Kotake, Satoshi Watanabe, Kenji Yamada, Masaki Ohashi 2020-07-28
10585345 Photomask blank, method for manufacturing photomask, and mask pattern formation method Shigeo Irie, Takashi Yoshii, Yukio Inazuki, Hideo Kaneko, Toyohisa Sakurada 2020-03-10
10495969 Chemically amplified positive resist composition and resist pattern forming process Masaaki Kotake, Satoshi Watanabe, Masaki Ohashi 2019-12-03
10416558 Positive resist composition, resist pattern forming process, and photomask blank Satoshi Watanabe, Masaaki Kotake, Masaki Ohashi 2019-09-17
10345700 Negative-tone resist compositions and multifunctional polymers therein Luisa D. Bozano, Daisuke Domon, Yoshio Kawai, Martha I. Sanchez, Daniel P. Sanders +3 more 2019-07-09
10120279 Negative resist composition and resist pattern forming process Satoshi Watanabe, Masaaki Kotake, Kenji Yamada, Masaki Ohashi 2018-11-06
9969829 Polymer compound, negative resist composition, laminate, patterning process, and compound Daisuke Domon, Koji Hasegawa, Masaaki Kotake 2018-05-15
9944738 Polymer compound, positive resist composition, laminate, and resist patterning process Daisuke Domon, Satoshi Watanabe, Masaaki Kotake 2018-04-17
RE46765 Chemically amplified negative resist composition and patterning process Daisuke Domon, Satoshi Watanabe 2018-03-27
RE46736 Chemically amplified negative resist composition and patterning process Daisuke Domon, Satoshi Watanabe 2018-02-27
9904169 Photomask blank, resist pattern forming process, and method for making photomask Teppei Adachi, Satoshi Watanabe, Daisuke Domon 2018-02-27
9740098 Chemically amplified negative resist composition using novel onium salt and resist pattern forming process Satoshi Watanabe, Masaaki Kotake, Daisuke Domon, Takayuki Fujiwara 2017-08-22
9720323 Chemically amplified positive resist composition and pattern forming process Masaaki Kotake, Takayuki Fujiwara, Daisuke Domon, Satoshi Watanabe 2017-08-01
9645493 Negative resist composition and pattern forming process Daisuke Domon, Satoshi Watanabe 2017-05-09
9604921 Sulfonium salt, resist composition and resist pattern forming process Daisuke Domon, Satoshi Watanabe, Masahiro Fukushima 2017-03-28