Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9257720 | Nonaqueous electrolyte solution and nonaqueous electrolyte battery using same | Kuniaki Okamoto, Tsutomu Watahiki, Kouki Ohkubo, Tatsuko Ikeda | 2016-02-09 |
| 9190695 | Nonaqueous electrolyte solution, method for producing same, and nonaqueous electrolyte battery using the electrolyte solution | Kuniaki Okamoto, Tsutomu Watahiki, Kouki Ohkubo, Tatsuko Ikeda | 2015-11-17 |
| 8969591 | Method for producing cyclic sulfonic acid ester and intermediate thereof | Ayako Kuramoto, Kuniaki Okamoto, Tsutomu Watahiki | 2015-03-03 |
| 8957212 | Photobase generator | Ayako Kuramoto, Nobuhiko Sakai | 2015-02-17 |
| 8742136 | Method for producing cyclic disulfonic acid ester | Kuniaki Okamoto, Tsutomu Watahiki | 2014-06-03 |
| 8716513 | Process for production of bis-quaternary ammonium salt, and novel intermediate | Kuniaki Okamoto, Tsutomu Watahiki | 2014-05-06 |
| 8673963 | Method for producing cyclic sulfonic acid ester and intermediate thereof | Ayako Kuramoto, Kuniaki Okamoto, Tsutomu Watahiki | 2014-03-18 |
| 8546609 | Ionic liquid containing allylsulfonate anion | Tsutomu Watahiki, Kuniaki Okamoto | 2013-10-01 |
| 8269038 | Process for production of sulfonic acid ester | Kuniaki Okamoto, Tsutomu Watahiki, Takao Shibasaki | 2012-09-18 |
| 7642368 | Process for producing triarylsulfonium salt | Kazuhito Fukasawa, Shigeaki Imazeki, Tetsuya Watanabe | 2010-01-05 |
| 6924323 | Sulfonium salt compound | Masami Ishihara, Kazuhito Fukasawa, Naoki Katano, Shigeaki Imazeki | 2005-08-02 |
| 6723483 | Sulfonium salt compounds | Keiji Oono, Kazuhito Fukasawa, Kazunori Sakamoto, Fumiyoshi Urano, Shigeaki Imazeki | 2004-04-20 |
| 6476240 | Monomer and a polymer obtained therefrom | — | 2002-11-05 |
| 6335143 | Resist composition containing specific cross-linking agent | Hirotoshi Fujie, Akiko Katsuyama, Masayuki Endo | 2002-01-01 |
| 6331602 | Monomer and a polymer obtained therefrom | — | 2001-12-18 |
| 6160068 | Monomer and a polymer obtained therefrom | — | 2000-12-12 |
| 6143472 | Resist composition and a method for formation of a pattern using the composition | Akiko Katsuyama | 2000-11-07 |
| 5973094 | Functional polymers | Fumiyoshi Urano, Tsuneaki Maesawa | 1999-10-26 |
| 5856521 | Acrylic or methacrylic acid derivatives and polymers obtained therefrom | Kazuhito Fukasawa | 1999-01-05 |
| 5463075 | Process for preparing 1,2-pyrazolidine-4-yl-disulfide compound | Tsutomu Tani, Atsunori Sano | 1995-10-31 |
| 5254688 | Process for producing pyrido[1,2-a]pyrimidine derivative | Atsunori Sano, Masami Ishihara, Kazuo Maruhashi | 1993-10-19 |