Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10539323 | Venturi nozzle and fuel supply device comprising venturi nozzle for controlling a ratio between a fuel gas and an air flow | Makoto Shiba, Tatsuya Fujiwara | 2020-01-21 |
| 7988124 | Needle valve | Tomohisa Takeda, Keiichi Fujita | 2011-08-02 |
| 6959718 | Valve | Toshihiro Kayahara, Tomohisa Takeda | 2005-11-01 |
| 6116196 | Water-tube boiler | Noboru Takubo, Kanta Kondou | 2000-09-12 |
| 5471956 | Heat-insulating structure for combustion equipment | Kazuhiro Ikeda, Takashi Sogabe, Toshiaki Ochi | 1995-12-05 |