Issued Patents 2003
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6652675 | Copper alloy sliding material | Kenji Sakai, Naohisa Kawakami, Satoru Kurimoto, Takayuki Shibayama | 2003-11-25 |
| 6643529 | Portable radio device | Yukinari Inoue, Akinori Ohira, Kazuhiro Konishi | 2003-11-04 |
| 6638375 | Aluminum bearing alloy | Masahito Fujita, Yukihiko Kagohara, Takayuki Shibayama | 2003-10-28 |
| 6631190 | Telephone system | Toshihiko Sakata | 2003-10-07 |
| 6628785 | Water sinking confirmation device and portable terminal device using the same | Toshiyasu Kitamura | 2003-09-30 |
| 6602615 | Composite sliding material | Kenji Sakai, Eisaku Inoue, Satoru Kurimoto, Takayuki Shibayama | 2003-08-05 |