Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10593508 | Emitter including a zigzag current path and rib portions, and X-ray tube | Masahiko Tezuka | 2020-03-17 |
| 9922794 | Rotating anode X-ray tube | Yasutaka Ito | 2018-03-20 |
| 9741523 | X-ray tube | Hiroshi Kanasaki, Hideyuki Takahashi, Keiichi Mimori | 2017-08-22 |
| 7991173 | Waterproof microphone | — | 2011-08-02 |
| 7006651 | Speaker | — | 2006-02-28 |
| 5825718 | Underwater communication apparatus and underwater microphone, and closed-type sound converter | Shouzou Kimura, Masaharu Ueki | 1998-10-20 |
| 5122729 | Power supply device including induction voltage detection coil for charging portable electronic devices | Toshiyuki Itoga | 1992-06-16 |