Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5126818 | Semiconductor device | Shigenari Takami, Jiro Hashizume, Yoshimasa Himura, Mitsuhiro Kani, Nobolu Yamaguchi | 1992-06-30 |
| 4805006 | Light receiving element | Shuichiroh Yamaguchi, Yukio Idaka, Takeshi Matsumoto | 1989-02-14 |