Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8677947 | Boiler system | Tomohiro Ookubo, Shigeyoshi Matsugi, Eiki SUZUKI | 2014-03-25 |
| 6269782 | Water-tube boiler | Toshihiro Kayahara, Akinori Kawakami, Koichi Wakae, Kanta Kondou, Tomohiro Ookubo +1 more | 2001-08-07 |