Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9581338 | Extractor hood | Masanori Yamanaka, Hirosato Sakai, Masamichi Kachi | 2017-02-28 |
| 8840454 | Shutter device and ventilation device | Yoshio Ikari, Makoto Ishikawa, Hideyuki FUJISAWA, Nobuyuki Yasui, Kunio Kiyomoto | 2014-09-23 |