Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9851124 | Room heater | Shihori Nishiyama | 2017-12-26 |
| 8480007 | Forced draft direct vent type room heater | — | 2013-07-09 |
| 8474729 | Forced draft direct vent type room heater | — | 2013-07-02 |
| 7806345 | In-wall heater | Ikuo Tsunekawa, Minoru Oguri, Brian Smith, Gregory Brinsden | 2010-10-05 |