Issued Patents All Time
Showing 1–25 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6419345 | Image-forming apparatus with electric-field control of data and selection electrodes | — | 2002-07-16 |
| 6336712 | Image formation apparatus having a toner flow control member with a protection layer | — | 2002-01-08 |
| 6332670 | Recording head for forming images with charged particles | Tetsuya Kitamura | 2001-12-25 |
| 6257707 | Electrode board for image forming apparatus | — | 2001-07-10 |
| 6196666 | Electrode assembly, and method for producing, used in recording process | Tetsuya Kitamura | 2001-03-06 |
| 6126275 | Recording electrode body, method of manufacturing a recording electrode body, and image forming apparatus using a recording electrode body | — | 2000-10-03 |
| 6057868 | Image forming apparatus | Osamu Nagata | 2000-05-02 |
| 5905516 | Image forming apparatus having at least one reinforcing member | — | 1999-05-18 |
| 5867190 | Image forming unit with control electrodes arranged to be electrically insulated from each other | — | 1999-02-02 |
| 5861877 | Electric pen that functions as hand-held printer with multiple colors and adjustable print area | Takemi Yamamoto | 1999-01-19 |
| 5839040 | Color image forming device having intermediate transfer body sandwiched between image recording units | Osamu Nagata | 1998-11-17 |
| 5712670 | Aperture control member having a plurality of apertures passing toner under control of a plurality of control electrodes | — | 1998-01-27 |
| 5659344 | Image forming apparatus having a plurality of aperature electrodes and intermintent openings forming an electrostatic field | — | 1997-08-19 |
| 5640185 | Image recording apparatus having aperture electrode with tension application means and tension increasing means and opposing electrode for applying toner image onto image receiving sheet | — | 1997-06-17 |
| 5631679 | Image forming apparatus having aperture electrode unit including insulating member with high dielectric constant | — | 1997-05-20 |
| 5614932 | Image forming apparatus | — | 1997-03-25 |
| 5516621 | Photosensitive microcapsule having increased photosensitive sensitivity | Masashi Tsuda, Yasuhiro Hattori | 1996-05-14 |
| 5504509 | Image forming apparatus with specific aperture electrode unit | — | 1996-04-02 |
| 5481286 | Image forming apparatus having staggered aperture electrodes that uniformly supply toner to form an image | — | 1996-01-02 |
| 5448272 | Image forming apparatus | — | 1995-09-05 |
| 5353094 | Image recording apparatus | — | 1994-10-04 |
| 5353050 | Recording electrode for multicolor recording | — | 1994-10-04 |
| 5296879 | Image recording apparatus having detachable cartridge | — | 1994-03-22 |
| 5245244 | Piezoelectric ink droplet ejecting device | Yoshikazu Takahashi, Masahiko Suzuki | 1993-09-14 |
| 5214478 | Image recording apparatus provided with a selective power applying device | Yoshiyasu Honma, Yasuhiro Hattori | 1993-05-25 |