Issued Patents All Time
Showing 1–25 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10166766 | Head driving device, liquid-ejection head unit, and liquid ejection apparatus | — | 2019-01-01 |
| 9387671 | Head driving device, recording head unit, and image forming apparatus | — | 2016-07-12 |
| 9030517 | Pixel clock generating device and image forming apparatus | — | 2015-05-12 |
| 9020406 | Image forming apparatus and method of correcting color registration error | Norikazu IGARASHI | 2015-04-28 |
| 8867973 | Image forming apparatus and image forming method that corrects test pattern data and image data based on color displacement amount | — | 2014-10-21 |
| 8862002 | Image forming apparatus and method | Norikazu IGARASHI | 2014-10-14 |
| 8493578 | Pixel clock generator and image forming apparatus | — | 2013-07-23 |
| 7791634 | Pixel clock generator, pulse modulator, and image forming apparatus | Hidetoshi Ema, Nobunari Tsukamoto | 2010-09-07 |
| 7746971 | Data recovery method, data recovery circuit, data transmitting/receiving apparatus and information processing apparatus | Hidetoshi Ema | 2010-06-29 |
| 7684531 | Data recovery method and data recovery circuit | Hidetoshi Ema | 2010-03-23 |
| 7656422 | Pulse width modulaton device and image forming apparatus | Dan Ozasa | 2010-02-02 |
| 7573790 | Light source driving unit and optical storage apparatus | Hidetoshi Ema | 2009-08-11 |
| 7518969 | Light source driving unit and optical storage apparatus | Hidetoshi Ema | 2009-04-14 |
| 7512050 | Information recording method, information recording device, and recording medium containing a program, with recording marks formed by emitting light | Kenya Yokoi | 2009-03-31 |
| 7480230 | Light source drive, optical information recording apparatus, and optical information recording method | Hidetoshi Ema | 2009-01-20 |
| 7423940 | Signal processing method and signal processing apparatus | Hidetoshi Ema | 2008-09-09 |
| 7349303 | Information recording method and apparatus | — | 2008-03-25 |
| 7313075 | Optical information recording method and apparatus | Kenya Yokoi | 2007-12-25 |
| 7301870 | Information recording method and an information recording apparatus | — | 2007-11-27 |
| 7200091 | Light source driving unit and optical storage apparatus | Hidetoshi Ema | 2007-04-03 |
| 7193957 | Light source drive, optical information recording apparatus, and optical information recording method | Hidetoshi Ema | 2007-03-20 |
| 7164637 | Information recording method and information recording apparatus | — | 2007-01-16 |
| 7142486 | Signal processing method and signal processing apparatus | Hidetoshi Ema | 2006-11-28 |
| 6954415 | Light source drive, optical information recording apparatus, and optical information recording method | Hidetoshi Ema | 2005-10-11 |
| 6687206 | Information recording method and apparatus | — | 2004-02-03 |