Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7543409 | Door pull and sash window having the door pull | Norikazu Higashitani, Yasushi Yamamoto, Hiroaki Kubo, Shuhei Ohno | 2009-06-09 |
| 5682714 | Partitioning sash | Masao Hirano, Hiroshi Miyazaki | 1997-11-04 |