Issued Patents All Time
Showing 26–46 of 46 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7826110 | Light scanning apparatus, light scanning method, image forming apparatus, and color image forming apparatus | Jun Tanabe, Masaaki Ishida, Atsufumi Omori | 2010-11-02 |
| 7760223 | Optical scan apparatus and image formation apparatus | Seizo Suzuki, Hironobu Mifune, Yoshinori Hayashi | 2010-07-20 |
| 7701480 | Light-source driving device, optical scanning device, and image forming apparatus | Atsufumi Omori, Masaaki Ishida, Jun Tanabe | 2010-04-20 |
| 7671882 | Semiconductor laser modulation driving apparatus and image forming apparatus | Dan Ozasa, Masaaki Ishida, Atsufumi Omori | 2010-03-02 |
| 7528625 | Image forming apparatus | Dan Ozasa, Masaaki Ishida, Atsufumi Omori | 2009-05-05 |
| 7515170 | Optical scanner and image forming apparatus | Atsufumi Omori, Masaaki Ishida, Dan Ozasa | 2009-04-07 |
| 7496121 | Laser modulating and driving device and image reproducing apparatus using the same | Masaaki Ishida, Atsufumi Omori, Dan Ozasa | 2009-02-24 |
| 7456856 | Clock signal generation circuit, optical scanning apparatus, and image forming apparatus | — | 2008-11-25 |
| 7400210 | Voltage controlled oscillator, PLL circuit, pulse modulation signal generating circuit, semiconductor laser modulation device and image forming apparatus | Masaaki Ishida, Atsufumi Omori, Dan Ozasa | 2008-07-15 |
| 7327379 | Pixel clock and pulse-modulation-signal generating device, optical scanner, and image forming apparatus | Masaaki Ishida, Atsufumi Omori, Dan Ozasa | 2008-02-05 |
| 7283151 | Pixel clock generation device causing state transition of pixel clock according to detected state transition and phase data indicating phase shift amount | Masaaki Ishida | 2007-10-16 |
| 7271824 | Pixel clock generating apparatus, optical writing apparatus using a pixel clock, imaging apparatus, and method for generating pixel clocks | Atsufumi Omori, Masaaki Ishida, Yoshinori Hayashi | 2007-09-18 |
| 7256815 | Image forming method, image forming apparatus, optical scan device, and image forming apparatus using the same | Seizo Suzuki, Masaaki Ishida, Atsufumi Omori, Magane Aoki | 2007-08-14 |
| 7212224 | Pixel clock creation method, pixel clock creation device, optical scanning device, and image forming apparatus | Masaaki Ishida, Atsufumi Omori, Dan Ozasa | 2007-05-01 |
| 7193480 | Voltage controlled oscillator, PLL circuit, pulse modulation signal generating circuit, semiconductor laser modulation device and image forming apparatus | Masaaki Ishida, Atsufumi Omori, Dan Ozasa | 2007-03-20 |
| 7009430 | Circuit for generating pixel clock with fine phase control | Masaaki Ishida, Atsufumi Omori, Dan Ozasa | 2006-03-07 |
| 6933957 | Pixel clock generation apparatus, pixel clock generation method, and image forming apparatus capable of correcting main scan dot position shift with a high degree of accuracy | Atsufumi Omori, Masaaki Ishida, Dan Ozasa | 2005-08-23 |
| 6927789 | Pixel clock generating device, laser scanning device, and image forming device | Dan Ozasa, Masaaki Ishida, Atsufumi Omori | 2005-08-09 |
| 6917639 | Laser driver circuit | Masaaki Ishida, Hidetoshi Ema, Hiroaki Kyougoku, Atsufumi Omori | 2005-07-12 |
| 6791596 | Method and apparatus for image forming capable of effectively generating pixel clock pulses | Hidetoshi Ema, Masaaki Ishida, Akihisa Itabashi | 2004-09-14 |
| 6731317 | Pulse modulation signal generation circuit, and semiconductor laser modulation device, optical scanning device and image formation device using the same | Hidetoshi Ema, Masaaki Ishida | 2004-05-04 |