Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5065150 | Monitoring apparatus for disaster prevention | Haruchika Machida, Takashi Shimokawa | 1991-11-12 |
| 4796018 | Exit guiding system | Tsutomu Nakanishi, Akira Kitajima, Yasaburo Adachi | 1989-01-03 |