Issued Patents All Time
Showing 1–25 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11902475 | Diagnostic system for diagnosing image forming apparatus using image formed by image forming apparatus | Masahide Hirai, Kuniaki Kasuga, Mahito Yoshioka, Hiroshi Kataoka | 2024-02-13 |
| 11454913 | Image forming apparatus and image forming system | Tetsuichiro Fujimoto | 2022-09-27 |
| 11150581 | Image forming apparatus that can form a nip image corresponding to a fixing nip shape | Kentaro Yamashita, Masahiro Suzuki, Mahito Yoshioka, Yoshiro Saito, Satoshi Saito | 2021-10-19 |
| 11119430 | Technology for ascertaining state of members constituting image forming apparatus | Masahiro Suzuki | 2021-09-14 |
| 11086258 | Image forming apparatus that detects toner fogging | Yu Izaki, Masahiro Suzuki | 2021-08-10 |
| 10795303 | Method of estimating lifetime of conveyance part provided in image forming apparatus | — | 2020-10-06 |
| 10409204 | Image forming apparatus and management system | Tomonori Shida, Michio Sugano | 2019-09-10 |
| 10317834 | Image forming apparatus | Tomonori Shida | 2019-06-11 |
| 10274875 | Image forming apparatus and management system for calculating a degree of deterioration of a fixing portion | Toshiaki Sako, Tomonori Shida | 2019-04-30 |
| 9989899 | Image forming apparatus and management system | Tomonori Shida, Michio Sugano | 2018-06-05 |
| 9977387 | Fixing apparatus | Tomonori Shida | 2018-05-22 |
| 9958814 | Image forming apparatus with function for determining recording material stiffness | Tomonori Shida | 2018-05-01 |
| 9513170 | Spectral color sensor and image forming apparatus | Hiroshi Kita | 2016-12-06 |
| 9267841 | Color measurement device and image forming apparatus | Hiroshi Kita, Tatsuya Kobayashi | 2016-02-23 |
| 9201372 | Recording-material identifying apparatus and image forming apparatus | Tsutomu Ishida, Shoichi Koyama, Tomoharu Nakamura, Norio Matsui | 2015-12-01 |
| 9098042 | Recording material detection apparatus and image forming apparatus | Norio Matsui, Shoichi Koyama, Tsutomu Ishida | 2015-08-04 |
| 9075330 | Color image forming apparatus having function of obtaining color information of patch | Masatake Usui, Hiroshi Kita, Ken Yokoyama | 2015-07-07 |
| 9058000 | Recording material determination device and image forming apparatus | Norio Matsui, Shoichi Koyama, Tsutomu Ishida, Tomoharu Nakamura | 2015-06-16 |
| 8971738 | Recording medium imaging device and image forming apparatus | Shoichi Koyama, Tsutomu Ishida, Norio Matsui | 2015-03-03 |
| 8918000 | Recording material detection apparatus and image forming apparatus | Norio Matsui, Shoichi Koyama, Tsutomu Ishida | 2014-12-23 |
| 8908193 | Recording sheet surface detection apparatus and image forming apparatus | Tsutomu Ishida, Shoichi Koyama, Norio Matsui | 2014-12-09 |
| 8875581 | Ultrasonic wave control device and recording material determining device | Tomoharu Nakamura, Norio Matsui, Shoichi Koyama, Tsutomu Ishida | 2014-11-04 |
| 8873045 | Spectrocolorimeter and image forming apparatus | Hiroshi Kita, Ken Yokoyama | 2014-10-28 |
| 8861999 | Recording-material identifying apparatus and image forming apparatus | Tsutomu Ishida, Shoichi Koyama, Tomoharu Nakamura, Norio Matsui | 2014-10-14 |
| 8862011 | Image forming apparatus having test image formation | Tomonori Shida, Hiroshi Kita | 2014-10-14 |