Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9823612 | Printing device | Toshihiko Numazu, Toshio Nagasaka | 2017-11-21 |
| 9423755 | Printing apparatus, printing system, printing method and non-transitory recording medium | Toshihiko Numazu, Toshio Nagasaka | 2016-08-23 |
| 7957667 | Intermediate coupling unit between two image forming apparatuses and image forming apparatus adaptable thereto | Kazutaka Otsuka | 2011-06-07 |
| 6268878 | Optical writing head driving device and method of driving optical writing head | Jun Hashimoto, Toshio Nagasaka | 2001-07-31 |
| 5583558 | Recording apparatus for carrying out high-density dot printing | — | 1996-12-10 |
| 5208640 | Image recording apparatus | Kiyoshi Horie, Hiroshi Ishikawa, Akira Ogita | 1993-05-04 |