Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8780399 | Print management system, distributed printing system, and managing method for distributed printing system | — | 2014-07-15 |
| 7760400 | Creating multiple threshold matrices to be used in error diffused multilevel halftoning | Hiroshi Ishii | 2010-07-20 |
| 7636179 | Image quantization processing with error diffusion using oscillating quantization threshold to develop dots that spiral outward | Hiroshi Takahashi, Kazunari Tonami | 2009-12-22 |
| 7423781 | Image processor and image processing method for image enhancement using edge detection | Hiroyuki Shibaki, Tooru Suino | 2008-09-09 |
| 7355755 | Image processing apparatus and method for accurately detecting character edges | Tooru Suino, Hiroyuki Shibaki | 2008-04-08 |
| 7330290 | Image forming apparatus | Hiroshi Takahashi | 2008-02-12 |
| 7170642 | Image processing apparatus and method for improving output image quality | Hiroyuki Shibaki | 2007-01-30 |
| 7142330 | Image processing method, image processing apparatus and recording medium | Hiroshi Takahashi, Kazunari Tonami | 2006-11-28 |
| 6977757 | Image processing method, image processing apparatus and recording medium | Hiroshi Takahashi, Kazunari Tonami | 2005-12-20 |
| 6791713 | Image forming apparatus | Hiroshi Takahashi | 2004-09-14 |
| 6005970 | Image processing apparatus | Shougo Ohneda, Hiroaki Suzuki, Hiroki Kubozono, Manabu Komatsu | 1999-12-21 |
| 5831751 | Image processing apparatus | Shougo Ohneda, Hiroaki Suzuki, Hiroki Kubozono, Manabu Komatsu | 1998-11-03 |