Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7692299 | Semiconductor apparatus having improved thermal fatigue life | Chikara Nakajima, Takeshi Kurosawa | 2010-04-06 |
| 4404877 | Power-driven screwdriver | Shigeru Ishikawa, Eiki Kubo | 1983-09-20 |