Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8883652 | Silicon etching liquid and etching method | Kazuyoshi Yaguchi | 2014-11-11 |
| 8562855 | Silicon etching liquid and etching method | Kazuyoshi Yaguchi | 2013-10-22 |
| 7892404 | Method for oxidizing substance and oxidation apparatus therefor | Yoshiya Kimura | 2011-02-22 |
| 6875288 | Cleaning agent and cleaning method | Hideto Gotoh, Takayuki Niuya, Hiroyuki Mori, Hiroshi Matsunaga, Fukusaburo Ishihara +4 more | 2005-04-05 |
| 6843981 | Tooth bleaching compositions and methods of bleaching discolored tooth | Takuro Ishibashi, Emi Higashiizumi, Fukusaburo Ishihara, Minoru Kakuda, Masumi Ogasawara +1 more | 2005-01-18 |
| 6514352 | Cleaning method using an oxidizing agent, chelating agent and fluorine compound | Hideto Gotoh, Takayuki Niuya, Hiroyuki Mori, Hiroshi Matsunaga, Fukusaburo Ishihara +4 more | 2003-02-04 |
| 6265309 | Cleaning agent for use in producing semiconductor devices and process for producing semiconductor devices using the same | Hideto Gotoh, Tsuyoshi Matsui, Takayuki Niuya, Tetsuo Aoyama, Taketo Maruyama +3 more | 2001-07-24 |
| 5972862 | Cleaning liquid for semiconductor devices | Yoshimi Torii, Shunji Sasabe, Masayuki Kojima, Kazuhisa Usuami, Takafumi Tokunaga +8 more | 1999-10-26 |