Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5399334 | Process for producing hydrogen peroxide | Yukio Ishiuchi, Hiromitsu Nagashima, Takeshi Tomita, Yasushi Hiramatsu | 1995-03-21 |
| 5378450 | Process for producing hydrogen peroxide | Takeshi Tomita, Yukio Ishiuchi, Hiromitsu Nagashima | 1995-01-03 |
| 5326035 | High purity cleaning system | Tadahiro Ohmi, Yasuyuki Yagi, Makoto Ohwada, Kiyoshi Takahara | 1994-07-05 |
| 5320821 | Method for producing hydrogen peroxide | Hiromitsu Nagashima, Yukio Ishiuchi, Yasushi Hiramatsu | 1994-06-14 |
| 5302311 | Cleaning solution of semiconductor substrate | Yasuo Sugihara, Kazushige Tanaka | 1994-04-12 |
| 5292496 | Process for the preparation of hydrogen peroxide | Hiromitsu Nagashima, Yukio Ishiuchi, Yasushi Hiramatsu | 1994-03-08 |
| 5160429 | Piping system for supplying ultra-pure water | Tadahiro Ohmi, Tadashi Shibata, Masaru Umeda | 1992-11-03 |