Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5294851 | Small-sized DC motor | Kazuo Tajima, Keisuke Nakahara, Hiromichi Saito, Yoko Okano | 1994-03-15 |
| 4917872 | Method for producing titanium fluoride | Keisuke Nakahara, Hideyuki Yoshikoshi, Takaho Kawawa | 1990-04-17 |