Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12325801 | Ink jet ink set, ink jet recording method, and ink jet recording apparatus | Yusuke Mizutaki, Jun Ito, Tomohito Nakano | 2025-06-10 |
| 12091564 | Ink accommodating body and ink composition | Yusuke Mizutaki, Tomohito Nakano | 2024-09-17 |
| 11643567 | Ink set and ink jet recording apparatus | Yusuke Mizutaki | 2023-05-09 |
| 11578224 | Ink set | Tomohiro Aruga, Shintaro Hama | 2023-02-14 |
| 11572485 | Ink set | Shintaro Hama, Tomohiro Aruga, Yusuke Mizutaki | 2023-02-07 |
| 11511545 | Ink jet recording apparatus, ink jet recording method, and ink composition | Jun Ito, Yusuke Mizutaki, Tomohiro Aruga, Tomoki Maruyama | 2022-11-29 |
| 11505711 | Ink jet recording apparatus, ink jet recording method, and ink composition | Tomoki Maruyama, Yusuke Mizutaki, Tomohiro Aruga, Jun Ito | 2022-11-22 |
| 11499064 | Ink jet recording apparatus, ink jet recording method, and ink composition | Yusuke Mizutaki, Jun Ito, Tomohiro Aruga, Tomoki Maruyama | 2022-11-15 |
| 11479056 | Ink jet recording apparatus, ink jet recording method, and ink composition | Tomohiro Aruga, Jun Ito, Tomoki Maruyama, Yusuke Mizutaki | 2022-10-25 |
| 10717888 | Ink composition, ink set, recording method, and ink jet recording apparatus | Shintaro Hama, Ryosuke Teramoto, Tetsuya Aoyama, Tomohiro Aruga, Kazuma Tsutsumi | 2020-07-21 |
| 10618310 | Ink jet recording ink set and ink jet recording method | Shintaro Hama | 2020-04-14 |
| 6068416 | Keyboard switch | Seigo Hasunuma, Seiki Katakami | 2000-05-30 |
| 4776270 | Method of printing characters on resin key tops | — | 1988-10-11 |