Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5279090 | Ceiling-frame construction method and ceiling-frame structure for clean rooms | Shigehisa Yamaguchi, Yoshiaki Kashiwase, Hiroshi Kagoyama | 1994-01-18 |
| 5169418 | Clean room arrangement | Shigeo Honda, Hiroaki Abe | 1992-12-08 |