Issued Patents All Time
Showing 1–25 of 41 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10732554 | Image forming apparatus with tone correction | — | 2020-08-04 |
| 10394175 | Image forming apparatus that uses a predetermined measurement image and controls image density | — | 2019-08-27 |
| 10126694 | Image forming apparatus capable of performing calibration | — | 2018-11-13 |
| 10007220 | Image forming apparatus with image correction using measurement image and image forming method | — | 2018-06-26 |
| 9996040 | Image forming apparatus | — | 2018-06-12 |
| 9659242 | Apparatus that performs calibration for maintaining image quality | — | 2017-05-23 |
| 9516196 | Image forming apparatus that performs calibration for maintaining image quality | — | 2016-12-06 |
| 9210298 | Image forming apparatus which performs calibration for maintaining image quality | — | 2015-12-08 |
| 9116470 | Adjustment of image density, using a density adjustment condition, in image forming apparatus | Yasuhito Shirafuji, Tomohisa Itagaki, Takahiro Ishihara | 2015-08-25 |
| 9091956 | Image forming apparatus for performing exposure a plurality of times | Tomohisa Itagaki, Takahiro Ishihara, Yasuhito Shirafuji | 2015-07-28 |
| 9057974 | Image forming apparatus having photosensitive member exposed to plural beams, and control apparatus for light source of image forming apparatus | Takahiro Ishihara, Tomohisa Itagaki, Yasuhito Shirafuji | 2015-06-16 |
| 8977143 | Image forming apparatus which performs calibration for maintaining image quality | — | 2015-03-10 |
| 8947728 | Image forming apparatus which performs calibration for maintaining image quality | — | 2015-02-03 |
| 8929757 | Image forming apparatus for detecting and correcting thickness and area ratio of toner layer | Yasuhito Shirafuji, Tomohisa Itagaki, Takahiro Ishihara | 2015-01-06 |
| 8908225 | Image forming apparatus in which tone correction setting is controlled | Tomohisa Itagaki, Yasuhito Shirafuji, Takahiro Ishihara | 2014-12-09 |
| 8903262 | Image forming apparatus responsive to image forming conditions | Yasuhito Shirafuji | 2014-12-02 |
| 8879113 | Image forming apparatus forming images in accordance with image forming conditions | — | 2014-11-04 |
| 8879937 | Image forming apparatus with electric field control | — | 2014-11-04 |
| 8854408 | Image forming apparatus for performing exposure a plurality of times | Tomohisa Itagaki, Takahiro Ishihara, Yasuhito Shirafuji | 2014-10-07 |
| 8804217 | Image forming apparatus which performs calibration for maintaining image quality | — | 2014-08-12 |
| 8705137 | Apparatus that performs calibration for maintaining image quality | — | 2014-04-22 |
| 8666265 | Image forming apparatus and image forming method of electrophotography | Takahiro Ishihara, Tomohisa Itagaki, Yasuhito Shirafuji | 2014-03-04 |
| 8629991 | Information processing apparatus for printing a first image added with a second image related to the first image, method of controlling same, image forming apparatus and computer program | — | 2014-01-14 |
| 8199181 | Image forming apparatus | Tomohisa Itagaki, Yasuhito Shirafuji, Takahiro Ishihara | 2012-06-12 |
| 8130409 | Image forming apparatus | Tomohisa Itagaki, Jiro Ishizuka | 2012-03-06 |