Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8194109 | Optical disk image forming method, optical disk image forming apparatus, and computer readable recording medium storing optical disk image forming program | Hisanori Itoga | 2012-06-05 |
| 8111605 | Apparatus and method for forming image data on an optical disk | Michihiro Shibata, Hiroshi Kubo, Seiya Yamada, Hisanori Itoga | 2012-02-07 |
| 8081545 | Optical disk image forming device and optical disk image forming method | Seiya Yamada, Hisanori Itoga, Hiroshi Kubo, Michihiro Shibata | 2011-12-20 |
| 7957252 | Optical disc and method for image forming thereon | Hiroshi Kubo, Michihiro Shibata, Seiya Yamada, Hisanori Itoga | 2011-06-07 |
| 7898914 | Optical disk recording apparatus and method of forming visible image on optical disk | Hisanori Itoga, Seiya Yamada | 2011-03-01 |
| 7864207 | Optical disk drawing apparatus | Kazuya Mushikabe, Hisanori Itoga | 2011-01-04 |
| 7852716 | Optical disk drawing apparatus, optical disk drawing system and optical disk drawing method | Hisanori Itoga | 2010-12-14 |
| 7813245 | Optical disk image forming device, optical disk image forming method and optical disk | Seiya Yamada, Hisanori Itoga, Hiroshi Kubo, Michihiro Shibata | 2010-10-12 |
| 7782727 | Optical disk processing apparatus | Hisanori Itoga, Seiya Yamada, Hiroshi Kubo, Michihiro Shibata | 2010-08-24 |
| 7760221 | Optical disk image drawing method | Hisanori Itoga, Seiya Yamada | 2010-07-20 |
| 7710447 | Optical disk image forming apparatus and optical disk image forming method | Hisanori Itoga, Seiya Yamada | 2010-05-04 |
| 7649816 | Optical disk recording system for recording visible images capable of handling “buffer under run” errors | Hisanori Itoga, Seiya Yamada, Jun Asami | 2010-01-19 |
| 7623146 | Optical disc image drawing method, optical disc image drawing program, and optical disc image drawing system | Kazuya Mushikabe, Hisanori Itoga | 2009-11-24 |
| 7446792 | Method and apparatus for forming visible image on optical disk | Seiya Yamada, Hisanori Itoga, Kazuya Mushikabe | 2008-11-04 |
| 7012864 | Optical disk recorder for writing data with variable density | Takuya Tamaru, Katsuichi Osakabe, Yusuke Konagai, Akira Usui, Kentaro Nomoto +2 more | 2006-03-14 |
| 6894967 | Optical disk recorder for writing data with variable density | Takuya Tamaru, Katsuichi Osakabe | 2005-05-17 |
| 5255102 | Optical disc playback device having uniform frame interval track jump based on disc rotation angle | — | 1993-10-19 |
| 5200750 | Digital-to-analog converter with noise-free sigma-delta modulation | Sadayuki Narusawa | 1993-04-06 |
| 5140575 | Optical disc playback device including detecting and correcting disc mount eccentricity | — | 1992-08-18 |
| 4866690 | Vibration imparted focus search devices in an optical type disc playback device | Takuya Tamaru | 1989-09-12 |
| 4549098 | Device for generating a variable control signal | — | 1985-10-22 |
| 4468627 | RIAA Equalizer circuit | — | 1984-08-28 |
| 4423389 | Amplifier with power supply switching | — | 1983-12-27 |