Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8500106 | Humidifier, filter unit and rotation drive structure | Tsutomu Tsuda, Naoyukl Shigemoto, Hiroshi Kitagaito | 2013-08-06 |
| 8382073 | Humidifier, filter unit and rotation drive structure | Tsutomu Tsuda, Naoyuki Shigemoto, Hiroshi Kitagaito | 2013-02-26 |
| 8034169 | Air cleaner | Hiroyasu Yamashita, Nobuhiro Iwaki, Masahiro Takemoto | 2011-10-11 |