Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8384752 | Optical scanning unit and image forming apparatus using same | — | 2013-02-26 |
| 7821678 | Image forming apparatus capable of producing a high-precision light beam with a simple structure | — | 2010-10-26 |
| 7612928 | Optical scanning apparatus, image forming apparatus using the same and method of regulating the optical scanning apparatus | — | 2009-11-03 |
| 7598972 | Optical scanning device and image forming apparatus | — | 2009-10-06 |
| 7593149 | Optical scanning unit having more maintenance-friendly adjustable lens having a support member with first and second faces, an adjusting member and moving member opposite the adjusting member, and image forming apparatus including the same | — | 2009-09-22 |
| 7538924 | Optical scanner and image forming apparatus including a light shielding device disposed between light beams that fall on the deflecting unit and light beams that are deflected from the deflecting unit | — | 2009-05-26 |
| 7397589 | Optical scanning device and image forming apparatus using the device | — | 2008-07-08 |
| 7355617 | Optical scanner and image forming apparatus | Keiichi Serizawa | 2008-04-08 |
| 7319475 | Method and apparatus for image forming capable of preventing image quality deterioration induced by heat from an optical deflector | Hiroshi Yoshizawa, Tetsuya Kimura, Masato Yokoyama, Keiji Okamoto, Keiichi Serizawa | 2008-01-15 |
| 7256813 | Optical scanner and image forming apparatus | Keiichi Serizawa | 2007-08-14 |
| 7038194 | Multiple-beam scanning device and image forming apparatus including the multiple-beam scanning device | — | 2006-05-02 |
| 6732372 | Transmission device and terminal device for automatic reception/recording of broadcast programs | Shigeru Oizumi | 2004-05-04 |
| 6230324 | Device for transmitting broadcast-program information and allowing other information sources to be accessed | Shigeru Oizumi | 2001-05-08 |
| 6161551 | Automatic smoking machine | Yuzuru Sakuma, Tomoyoshi Kitamoto, Takao Tozawa | 2000-12-19 |
| 6100884 | Device for delivering listings of broadcast programs via network | Shigeru Oizumi | 2000-08-08 |