Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8720531 | Electronic device cooling apparatus | Tomotaka Ishida, Mitsuru Yamamoto, Sakae Kitajo, Kazuhiro Kumakura | 2014-05-13 |
| 7826225 | Expansion tank device, process for fabricating expansion tank device, and liquid cooling radiator | Yoshinori Katada, Tomotaka Ishida, Sakae Kitajo | 2010-11-02 |