Issued Patents All Time
Showing 1–25 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11906356 | Spectral-characteristic acquisition apparatus and method of obtaining spectral characteristics | Toshio Koike, Nobuo Kikuchi, Kohei Shimbo | 2024-02-20 |
| 9770921 | High-frequency dielectric heating device and image forming apparatus | Yukie Inoue | 2017-09-26 |
| 9548745 | Phase-detector circuit and clock-data recovery circuit | — | 2017-01-17 |
| 8947058 | Switching power supply device, AC power supply device, and image forming apparatus | — | 2015-02-03 |
| 8743169 | Pulse-modulation-signal generating device, light-source device, and optical scanning device | — | 2014-06-03 |
| 8446444 | Optical scanning device and image forming apparatus | Masaaki Ishida, Yasuhiro Nihei, Atsufumi Omori, Jun Tanabe | 2013-05-21 |
| 8270026 | Light source driving device with relationship-based drive signal generating circuit, optical scanning device, and image forming apparatus | Yasuhiro Nihei, Masaaki Ishida, Atsufumi Omori, Jun Tanabe | 2012-09-18 |
| 8237760 | Light-source driving device, optical scanning device, and counting method | Yasuhiro Nihei, Atsufumi Omori, Jun Tanabe, Masaaki Ishida | 2012-08-07 |
| 8194113 | Pulse-modulation-signal generating device, light-source device, and optical scanning device | — | 2012-06-05 |
| 8005321 | Pixel clock generator, optical scanner, and image forming apparatus | Atsufumi Omori, Masaaki Ishida, Yasuhiro Nihei | 2011-08-23 |
| 7973817 | Pixel clock and pulse-modulation-signal generating device, optical scanner, and image forming apparatus | Yasuhiro Nihei, Masaaki Ishida, Atsufumi Omori | 2011-07-05 |
| 7936367 | Image forming apparatus controlling the output level of the light source | Masaaki Ishida, Yasuhiro Nihei, Atsufumi Omori, Jun Tanabe | 2011-05-03 |
| 7936493 | Dot position correcting apparatus, optical scanning apparatus, imaging apparatus, and color imaging apparatus | Masaaki Ishida, Yasuhiro Nihei, Atsufumi Omori | 2011-05-03 |
| 7863946 | Electric signal outputting apparatus with a switching part, an impedance matching part, and an auxiliary switching part | — | 2011-01-04 |
| 7834902 | Pixel clock creation method, pixel clock creation device, optical scanning device, and image forming apparatus | Yasuhiro Nihei, Masaaki Ishida, Atsufumi Omori | 2010-11-16 |
| 7671882 | Semiconductor laser modulation driving apparatus and image forming apparatus | Masaaki Ishida, Yasuhiro Nihei, Atsufumi Omori | 2010-03-02 |
| 7656422 | Pulse width modulaton device and image forming apparatus | Naruhiro Masui | 2010-02-02 |
| 7528625 | Image forming apparatus | Masaaki Ishida, Yasuhiro Nihei, Atsufumi Omori | 2009-05-05 |
| 7515170 | Optical scanner and image forming apparatus | Atsufumi Omori, Masaaki Ishida, Yasuhiro Nihei | 2009-04-07 |
| 7496121 | Laser modulating and driving device and image reproducing apparatus using the same | Masaaki Ishida, Yasuhiro Nihei, Atsufumi Omori | 2009-02-24 |
| 7463278 | Pixel clock generation circuit | Masaaki Ishida | 2008-12-09 |
| 7400210 | Voltage controlled oscillator, PLL circuit, pulse modulation signal generating circuit, semiconductor laser modulation device and image forming apparatus | Masaaki Ishida, Yasuhiro Nihei, Atsufumi Omori | 2008-07-15 |
| 7327379 | Pixel clock and pulse-modulation-signal generating device, optical scanner, and image forming apparatus | Yasuhiro Nihei, Masaaki Ishida, Atsufumi Omori | 2008-02-05 |
| 7212224 | Pixel clock creation method, pixel clock creation device, optical scanning device, and image forming apparatus | Yasuhiro Nihei, Masaaki Ishida, Atsufumi Omori | 2007-05-01 |
| 7193480 | Voltage controlled oscillator, PLL circuit, pulse modulation signal generating circuit, semiconductor laser modulation device and image forming apparatus | Masaaki Ishida, Yasuhiro Nihei, Atsufumi Omori | 2007-03-20 |