Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4931655 | Apparatus for accelerated weather-testing of a sample using a metal halide lamp | Yasuo Yoshida, Tadashi Kakinuma, Tadashi Sakurai, Yoshio Kishima | 1990-06-05 |
| 4817447 | Weather resistance tester | Yoshio Kashima, Yasuo Yoshida, Teruo Iwanaga | 1989-04-04 |