Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9560450 | Speaker array apparatus | Susumu Takumai | 2017-01-31 |
| 9167369 | Speaker array apparatus | Susumu Takumai | 2015-10-20 |
| 8428268 | Array speaker apparatus | Yusuke Konagai, Susumu Takumai | 2013-04-23 |
| 8199921 | Sound field controlling device | Masaki Katayama, Katsuhiko Masuda | 2012-06-12 |
| 8121297 | Signal processing device and sound image orientation apparatus | Masaki Katayama, Katsuhiko Masuda | 2012-02-21 |
| 6556524 | Optimum-recording-speed determining method, recording-speed setting method and recording method for optical disk | — | 2003-04-29 |
| 6424615 | Optical disk having plurality of volumes, recording device and reproduction device for same | Yutaka Ishimura, Morihiro Murata | 2002-07-23 |
| 6243343 | Optical disk, optical disk reproducing device and optical disk reproduction system | Yutaka Ishimura, Morihiro Murata | 2001-06-05 |
| 5986980 | Optical disc device capable of recording information data as a plurality of linking packets | Morihiro Murata | 1999-11-16 |
| 5812502 | Optical disc reading device | Akio Hirai | 1998-09-22 |