Issued Patents 2002
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6499946 | Steam turbine rotor and manufacturing method thereof | Takao Inukai, Masataka Kikuchi, Joji Kaneko, Satoru Asai, Yoichi Tsuda +2 more | 2002-12-31 |
| 6494970 | Heat resistant steel casting and method of manufacturing the same | Ryuichi Ishii, Yoichi Tsuda | 2002-12-17 |
| 6489057 | Positive electrode-active material and lithium cell comprising the same | Shigeo Aoyama | 2002-12-03 |
| 6438521 | Speech recognition method and apparatus and computer-readable memory | Yasuhiro Komori, Kenichiro Nakagawa | 2002-08-20 |