Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11561471 | Photoresist composition | Masako Sugihara, Takashi Nishimura | 2023-01-24 |
| 11119408 | Compound, resin and photoresist composition | Koji Ichikawa | 2021-09-14 |
| 10838300 | Salt and photoresist composition containing the same | Mutsuko Higo, Koji Ichikawa | 2020-11-17 |
| 9809669 | Salt, resin, resist composition and method for producing resist pattern | Koji Ichikawa | 2017-11-07 |
| 9726976 | Photoresist composition | Koji Ichikawa, Masako Sugihara, Takashi Hiraoka | 2017-08-08 |
| 9580402 | Salt, acid generator, photoresist composition, and method for producing photoresist pattern | Koji Ichikawa | 2017-02-28 |
| 9429841 | Resist composition and method for producing resist pattern | Koji Ichikawa, Takashi Hiraoka | 2016-08-30 |
| 9405187 | Salt, acid generator and resist composition | Takashi Hiraoka, Koji Ichikawa | 2016-08-02 |
| 9233945 | Compound, resin and photoresist composition | Koji Ichikawa, Shingo Fujita | 2016-01-12 |
| 8993210 | Salt and photoresist composition containing the same | Koji Ichikawa | 2015-03-31 |
| 8906589 | Salt and photoresist composition comprising the same | Koji Ichikawa | 2014-12-09 |
| 8835095 | Resist composition and method for producing resist pattern | Koji Ichikawa, Yuichi Mukai | 2014-09-16 |
| 8778594 | Resist composition and method for producing resist pattern | Koji Ichikawa, Yuichi Mukai | 2014-07-15 |
| 8753795 | Photoresist composition | Koji Ichikawa, Yuichi Mukai | 2014-06-17 |
| 8753796 | Photoresist composition | Koji Ichikawa, Yuichi Mukai | 2014-06-17 |
| 8663899 | Resist composition and method for producing resist pattern | Koji Ichikawa, Takashi Hiraoka | 2014-03-04 |
| 8557500 | Salt and photoresist composition comprising the same | Koji Ichikawa, Takahiro Yasue | 2013-10-15 |
| 8367298 | Salt and photoresist composition containing the same | Koji Ichikawa, Masako Sugihara | 2013-02-05 |
| 8318404 | Salt and photoresist composition containing the same | Koji Ichikawa, Masako Sugihara | 2012-11-27 |
| 7625689 | Chemically amplified positive resist composition | Ichiki Takemoto, Satoshi Yamaguchi | 2009-12-01 |
| 7612217 | Sulfonium compound | Yukako Harada | 2009-11-03 |
| 5935278 | Abrasive composition for magnetic recording disc substrate | Ken Ishitobi, Takanori Kido | 1999-08-10 |