Issued Patents All Time
Showing 1–25 of 55 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12038710 | Image forming apparatus capable of accurately acquiring electrical resistance value of transfer member, electrical resistance value acquisition method | Ryota Okui, Tamotsu Shimizu, Kazuhiro Nakachi, Kazunori Tanaka | 2024-07-16 |
| 11982965 | Image forming apparatus capable of acquiring potential value of exposed area on image-carrying member, potential value acquisition method | Kazunori Tanaka, Tamotsu Shimizu, Kazuhiro Nakachi, Ryota Okui | 2024-05-14 |
| 11747747 | Image forming apparatus and control method of image forming apparatus | Tamotsu Shimizu, Kazunori Tanaka | 2023-09-05 |
| 11630400 | Image forming apparatus | Tamotsu Shimizu, Kazunori Tanaka | 2023-04-18 |
| 11592760 | Image forming apparatus that detects surface potential of image carrier with high accuracy | Kazunori Tanaka, Tamotsu Shimizu | 2023-02-28 |
| 11573501 | Image forming apparatus capable of calculating surface potential of image carrier based on development current | Tamotsu Shimizu, Kazunori Tanaka | 2023-02-07 |
| 11556074 | Image forming apparatus comprising image bearing member surface potential calculating section | Kazunori Tanaka, Tamotsu Shimizu | 2023-01-17 |
| 11487218 | Image forming apparatus that calculates surface potential of image carrier according to developing current | Tamotsu Shimizu, Kazunori Tanaka | 2022-11-01 |
| 11435677 | Image forming apparatus including a fogging toner amount estimation section | Kazunori Tanaka, Tamotsu Shimizu | 2022-09-06 |
| 11301188 | Information processing apparatus, information processing method, and printing apparatus | Tomoyuki Watanabe, Masao Maeda, Hirokazu Ishii | 2022-04-12 |
| 11292249 | Image forming apparatus | Kanako Morimoto, Ryota Okui, Satoshi Ishii | 2022-04-05 |
| 11131942 | Image forming apparatus | Kazunori Tanaka, Tamotsu Shimizu | 2021-09-28 |
| 11131943 | Image forming apparatus | Kazunori Tanaka, Tamotsu Shimizu | 2021-09-28 |
| 10545447 | Image forming apparatus | Yuta Kitabayashi, Kenichi Kasama, Koji Uno, Nobuyuki Hayashi | 2020-01-28 |
| 10185281 | Image forming apparatus provided with a photosensitive member having a photosensitive layer and a surface protection layer which is formed on the surface of the photosensitive layer and which has a hardness higher than that of the photosensitive layer | Tamotsu Shimizu, Akifumi Yamaguchi, Koji Uno, Kenichi Kasama, Yuta Kitabayashi +1 more | 2019-01-22 |
| 10001736 | Fixing device and image forming apparatus | Takashi Eiki | 2018-06-19 |
| 9915900 | Fixing device and image forming apparatus | Takashi Eiki | 2018-03-13 |
| 9817344 | Fixing device capable of sensing temperature of heating body outside frame surrounding heating body regardless of moving frame and image forming apparatus including this fixing device | Takefumi Yotsutsuji, Takashi Eiki, Kotatsu Kawaguchi | 2017-11-14 |
| 9804547 | Fixing device and image forming apparatus that reduce rotation failure of fixing belt | Kotatsu Kawaguchi, Takashi Eiki, Takefumi Yotsutsuji | 2017-10-31 |
| 9778607 | Fixing device having fixing belt and image forming apparatus including the same | Kotatsu Kawaguchi, Takashi Eiki, Takefumi Yotsutsuji | 2017-10-03 |
| 9729656 | Information processing apparatus, information processing method, and storage medium storing program | Takeshi Suzuki | 2017-08-08 |
| 9658583 | Fixing device and image forming apparatus | Takefumi Yotsutsuji, Takashi Eiki | 2017-05-23 |
| 9454115 | Fixing device and image forming apparatus | Takefumi Yotsutsuji, Yoshiharu Kanematsu, Takashi Eiki, Eriko Hayashi, Hironori Takahashi | 2016-09-27 |
| 9436141 | Fixing device comprising controller which judges whether or not fixing belt is rotating and image forming apparatus including same | Takefumi Yotsutsuji, Takashi Eiki | 2016-09-06 |
| 9423728 | Fixing device comprising reflecting member arranged between heat source and supporting member and image forming apparatus including the same | Yoshiharu Kanematsu | 2016-08-23 |