Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10903893 | Radio wave measurement device | Taichi Hamabe, Shinkuro Fujino | 2021-01-26 |
| 9373157 | Display concealing system | — | 2016-06-21 |
| 8290345 | Digest generation for television broadcast program | — | 2012-10-16 |
| 7345651 | Antenna | — | 2008-03-18 |
| 5906494 | Training apparatus for singing | Nobuyuki Ogawa, Koji Watanabe, Kenji Muraki | 1999-05-25 |
| 5525062 | Training apparatus for singing | Nobuyuki Ogawa, Koji Watanabe, Kenji Muraki | 1996-06-11 |
| 5447438 | Music training apparatus | Kouji Watanabe, Kenji Muraki, Nobuyuki Ogawa | 1995-09-05 |
| 5400410 | Signal separator | Kenji Muraki, Kouji Watanabe, Nobuyuki Ogawa | 1995-03-21 |