Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9448466 | Display device and drive method for display device | Toshihiro Yoshioka | 2016-09-20 |
| 8625252 | Ion diffusing apparatus and ion generating cartridge | Hiroshi Kitagaito, Takashi Kohama, Hiroyasu Yamashita, Jun Katayama | 2014-01-07 |
| 7914596 | Air purifier | Takeshi Furukawa, Shinichiroh Murayama, Ryuhji Asakura | 2011-03-29 |
| D472625 | Ionizer | Yoshinori Sekoguchi | 2003-04-01 |
| D464414 | Ionizer module | Yoshinori Sekoguchi | 2002-10-15 |
| 5748834 | Recording/reproducing system wherein an analog stereo audio format is maintained and half the analog stereo signal is replaced by a digital stereo audio signal | Koichi Ishitoya | 1998-05-05 |
| 4797743 | Video memory control device | — | 1989-01-10 |