Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6749823 | Method for producing hydrophobic silica fine powder | Yasuaki Nozawa, Masanori Akiyama, Takayuki Matsuzawa | 2004-06-15 |
| 6696034 | Method for producing hydrophobic silica fine powder | Yasuaki Nozawa, Hidekazu Uehara, Keiji Shibata, Susumu Ueno | 2004-02-24 |