Issued Patents 2002
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6490348 | Switching system for providing an improved call waiting service | Wataru Oomori | 2002-12-03 |
| 6448438 | Method for purifying acrylic acid | Shuhei Yada, Kouji Kasamatsu, Yasuyuki Sakakura, Kiyoshi Takahashi | 2002-09-10 |
| 6442938 | Waste processing system and fuel reformer used in the waste processing system | Tsutomu Okusawa, Kazuhito Koyama, Shigeo Hatamiya, Taiko Ajiro, Megumi Sunou +2 more | 2002-09-03 |
| 6389799 | Gas turbine Installation | Shigeo Hatamiya, Osamu Yokomizo, Yoshiki Noguchi, Moriaki Tsukamoto | 2002-05-21 |