Issued Patents 2003
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6617603 | Surface defect tester | Takayuki Ishiguro | 2003-09-09 |
| 6603147 | Semiconductor light emitting device | Shigeki Hashimoto, Katsunori Yanashima, Masao Ikeda | 2003-08-05 |
| 6588542 | Borehole tool actuating mechanism | Tatsuki Endo | 2003-07-08 |
| 6513983 | Ball bearing | Katsuhiko Tanaka, Keisuke Kimura, Kazuhiro Uemura, Shoji Noguchi, Toru Takamizawa | 2003-02-04 |