Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4686754 | Method for manufacturing a heat insulating shaped bar | Yoshitaka Nagai | 1987-08-18 |
| 4620355 | Method for manufacturing a heat insulating sash bar | Yoshitaka Nagai | 1986-11-04 |
| 4563322 | Method and apparatus for continuously filling grooves in sash bars with heat insulating material | Yoshitaka Nagai | 1986-01-07 |
| 4342144 | Method of manufacturing a thermally insulating sash bar | — | 1982-08-03 |
| 4210499 | Method of forming colored patterns on aluminum or its alloys | Hatsuo Hirono, Katsuyuki Nagata | 1980-07-01 |
| 4210695 | Method of forming colored patterns on aluminum or its alloys | Hatsuo Hirono, Katsuyuki Nagata | 1980-07-01 |