Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5700714 | Diffusion mask and fabrication method for forming pn-junction elements in a compound semiconductor substrate | Mitsuhiko Ogihara, Yukio Nakamura, Masumi Koizumi | 1997-12-23 |
| 5600157 | Light-emitting and light-sensing diode array device, and light-emitting and light-sensing diode with improved sensitivity | Ichimatsu Abiko, Yukio Nakamura, Katsuzo Kaminishi, Takatoku Shimizu, Kazuo Tokura +4 more | 1997-02-04 |