Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6027808 | Cemented carbide for a drill, and for a drill forming holes in printed circuit boards which is made of the cemented carbide | Yukio Aoki, Masaru Ishii, Masahiro Machida | 2000-02-22 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6027808 | Cemented carbide for a drill, and for a drill forming holes in printed circuit boards which is made of the cemented carbide | Yukio Aoki, Masaru Ishii, Masahiro Machida | 2000-02-22 |