Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8625305 | Portable electric device | — | 2014-01-07 |
| 8086284 | Portable electronic device and portable telephone with electroacoustic transducer mounting | Masayuki Zaitsu | 2011-12-27 |
| 6338468 | Butterfly valve with low noise | Kazuhiko Ogawa | 2002-01-15 |