Issued Patents All Time
Showing 25 most recent of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12215241 | Printing ink jet ink composition and recording method | Kohei Ishida, Natsumi OKADA | 2025-02-04 |
| 11578224 | Ink set | Shintaro Hama, Kiyomi Kumamoto | 2023-02-14 |
| 11572485 | Ink set | Shintaro Hama, Kiyomi Kumamoto, Yusuke Mizutaki | 2023-02-07 |
| 11511545 | Ink jet recording apparatus, ink jet recording method, and ink composition | Jun Ito, Yusuke Mizutaki, Kiyomi Kumamoto, Tomoki Maruyama | 2022-11-29 |
| 11505711 | Ink jet recording apparatus, ink jet recording method, and ink composition | Tomoki Maruyama, Yusuke Mizutaki, Kiyomi Kumamoto, Jun Ito | 2022-11-22 |
| 11499064 | Ink jet recording apparatus, ink jet recording method, and ink composition | Kiyomi Kumamoto, Yusuke Mizutaki, Jun Ito, Tomoki Maruyama | 2022-11-15 |
| 11479056 | Ink jet recording apparatus, ink jet recording method, and ink composition | Jun Ito, Kiyomi Kumamoto, Tomoki Maruyama, Yusuke Mizutaki | 2022-10-25 |
| 10717888 | Ink composition, ink set, recording method, and ink jet recording apparatus | Shintaro Hama, Ryosuke Teramoto, Kiyomi Kumamoto, Tetsuya Aoyama, Kazuma Tsutsumi | 2020-07-21 |
| 10414931 | Ink composition, ink set, and ink jet recording device | Ryosuke Teramoto, Tetsuya Aoyama | 2019-09-17 |
| 9334412 | Ink composition for ink jet recording, ink supply system, and ink jet recording apparatus | Yoichi Yamada, Masaru Kobashi | 2016-05-10 |
| 9193882 | Ink composition for ink jet recording, ink supply system, and ink jet recording apparatus | Yoichi Yamada, Masaru Kobashi | 2015-11-24 |
| 9023140 | Ink jet ink set and ink jet recording system | Hiromi Iseki, Chie Maruyama, Kiyohiko Takemoto | 2015-05-05 |
| 9004665 | Ink jet recording ink and ink jet recording system | — | 2015-04-14 |
| 8991987 | Fluid ejecting apparatus and cleaning method | Masaru Kobashi, Yoichi Yamada, Daisuke Matsumoto, Kiyoteru Katsuki | 2015-03-31 |
| 8852837 | Toner, method for forming image, and image forming apparatus | Hideki Okada, Tomotaka Mori | 2014-10-07 |
| 8790458 | Ink set and droplet ejection apparatus using the ink set | Daisuke Ishihara | 2014-07-29 |
| 8651647 | Liquid ejecting apparatus, and nozzle recovery method used in liquid ejecting apparatus | Masaru Kobashi | 2014-02-18 |
| 8534808 | Liquid ejecting apparatus and cleaning method in liquid ejecting apparatus | Masaru Kobashi | 2013-09-17 |
| 8401443 | Toner-particle bearing roller, developing device, and image forming apparatus | Yoichi Yamada, Noboru Sakurai, Katsumi Okamoto, Hiroshi Kato, Masanao Kunugi +1 more | 2013-03-19 |
| 8311459 | Developing apparatus, image forming apparatus, image forming method, and toner | Yoichi Yamada, Daisuke Matsumoto, Yoshio Nakazawa | 2012-11-13 |
| 8175504 | Image forming apparatus and image forming method | Masahiro Maeda | 2012-05-08 |
| 8126355 | Developing device with seal member that abuts toner carrier roller | Masahiro Maeda | 2012-02-28 |
| 8087170 | Developing agent carrier manufacturing method, developing agent carrier, developing device and image forming apparatus | Noboru Sakurai, Yoichi Yamada, Junichi Nakahara, Masanao Kunugi, Katsumi Okamoto | 2012-01-03 |
| 8086150 | Toner particle-bearing roller with projection portion, developing device having such toner particle-bearing roller, and image forming apparatus having such developing device | Yoichi Yamada, Noboru Sakurai | 2011-12-27 |
| 7991319 | Image forming apparatus with seal member that abuts surface of toner carrier roller having convex and concave sections | Masahiro Maeda | 2011-08-02 |