Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9845538 | Etching agent, etching method and etching agent preparation liquid | Takahiro Yokomizo, Hiroyuki Tsurumoto | 2017-12-19 |
| 9006164 | Resist remover composition and method for removing resist using the composition | Hironori Mizuta | 2015-04-14 |
| 8900371 | Cleaning agent for substrate and cleaning method | Hironori Mizuta, Ichiro Hayashida | 2014-12-02 |
| 7375066 | Semiconductor wafer cleaning agent and cleaning method | Mayumi Kimura, Hironori Mizuta, Ichiro Hayashida | 2008-05-20 |
| 6716803 | Cleaning agent for a semi-conductor substrate | Ken-ichi Umekita, Ichiro Hayashida | 2004-04-06 |
| 6534458 | Cleaning agent for a semi-conductor substrate | Ken-ichi Umekita, Ichiro Hayashida | 2003-03-18 |
| 6514921 | Cleaning agent | Osamu Ichikawa, Ichiro Hayashida | 2003-02-04 |
| 6410494 | Cleaning agent | Osamu Ichikawa, Ichiro Hayashida | 2002-06-25 |
| 6310019 | Cleaning agent for a semi-conductor substrate | Ken-ichi Umekita, Ichiro Hayashida | 2001-10-30 |
| 6143705 | Cleaning agent | Osamu Ichikawa, Ichiro Hayashida | 2000-11-07 |
| 5840127 | Surface treating agents and treating process for semiconductors | Ichiro Hayashida | 1998-11-24 |
| 5580846 | Surface treating agents and treating process for semiconductors | Ichiro Hayashida | 1996-12-03 |
| 5290361 | Surface treating cleaning method | Ichiro Hayashida, Kenichi Umekita, Hiroyoshi Nawa, Hisashi Muraoka | 1994-03-01 |