Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6959718 | Valve | Shigehiro Watanabe, Tomohisa Takeda | 2005-11-01 |
| 6875009 | Combustion method and apparatus for NOx reduction | Noboru Takubo | 2005-04-05 |
| 6823821 | Combustion method and apparatus for NOx reduction | Kazuhiro Tachino, Noboru Takubo, Kenji Matunari, Kyosuke Okubo | 2004-11-30 |
| 6793485 | Combustion apparatus for NOx reduction | Hideo Furukawa, Tomohisa Takeda, Kanta Kondo | 2004-09-21 |
| 6792895 | Combustion method and apparatus for NOx reduction | Noboru Takubo | 2004-09-21 |
| 6764019 | Method for servicing and maintaining heat supply equipment | Kazuhiro Tachino, Yasuo Watanabe | 2004-07-20 |
| 6626366 | System for servicing and maintaining heat supply equipment | Kazuhiro Tachino, Yasuo Watanabe | 2003-09-30 |
| 6470837 | Method for servicing and maintaining heat supply equipment | Kazuhiro Tachino, Yasuo Watanabe | 2002-10-29 |
| 6269782 | Water-tube boiler | Akinori Kawakami, Takashi Morimatsu, Koichi Wakae, Kanta Kondou, Tomohiro Ookubo +1 more | 2001-08-07 |
| 6029614 | Water-tube boiler with re-circulation means | Noboru Takubo, Kanta Kondou | 2000-02-29 |
| 5938414 | Liquid feeding apparatus having a cassette accommodating an elastic tube | Kazuhiro Tachino, Yoshitami Tsubota, Sadatoshi Takechi, Yuuji Ukena, Satoshi Wakasa +2 more | 1999-08-17 |
| 5655710 | Method for controlling operated-units count of fluid heating units | Hirotsugu Hino | 1997-08-12 |
| 5353748 | Combustion method and apparatus for reducing emission concentrations of NO.sub.x and CO | Osamu Tanaka, Akinori Kawakami, Tetsushi Nakai, Kazuhiro Ikeda | 1994-10-11 |
| 5273001 | Quadrangular type multi-tube once-through boiler | Seiji Tai, Sadayoshi Shibakawa | 1993-12-28 |
| 5199384 | Quadrangular type multi-tube once-through boiler | Seiji Tai, Sadayoshi Shibakawa | 1993-04-06 |
| 4825813 | Multi-pipe once-through type boiler | Yuji Yoshinari, Hitoshi Shiraishi, Osamu Tanaka, Akiyoshi Kawahito, Satoru Takeda +2 more | 1989-05-02 |