Issued Patents All Time
Showing 1–25 of 66 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8174536 | Color difference display control apparatus, color difference display control method, and control program | Tomohisa Itagaki, Miyoko Hayashi, Masami Tomita, Toshio Saishoji, Satoshi Takayama | 2012-05-08 |
| 8064113 | Display apparatus, display method, and control program | Tomohisa Itagaki, Miyoko Hayashi, Masami Tomita, Toshio Saishoji, Satoshi Takayama | 2011-11-22 |
| 7676080 | Method of creating color chart for color evaluation, and information processing apparatus thereof | Tomohisa Itagaki, Masami Tomita, Toshio Saishoji, Satoshi Takayama, Miyoko Hayashi | 2010-03-09 |
| 7633648 | Method and apparatus for calculating distances and reflection differences between measurement points on printed matter to evaluate image quality | Tomohisa Itagaki, Masami Tomita, Toshio Saishoji, Satoshi Takayama, Miyoko Hayashi | 2009-12-15 |
| 7626728 | Method and apparatus for calcuating color differences on measured evaluation charts to evaluate color reproducibility considering image homogeneity | Tomohisa Itagaki, Masami Tomita, Toshio Saishoji, Satoshi Takayama, Miyoko Hayashi | 2009-12-01 |
| 7609909 | Image density test chart and method for determining image density level | Makoto Yoshihara | 2009-10-27 |
| 7529006 | Image processing method, image processing apparatus, storage medium, and program for calculating first and second graduation-correction characteristics, and for reducing hue variations of a secondary color | Tomohisa Itagaki, Jiro Ishizuka, Nobuhiko Zaima | 2009-05-05 |
| 7274490 | Image forming apparatus with control of maximum output of colorant | — | 2007-09-25 |
| 7068393 | Image ratio measuring method for image forming apparatus | Makoto Kanbayashi, Kazuo Suzuki, Yuichi Ikeda, Kenichi Nakagawa, Tomohisa Itagaki +1 more | 2006-06-27 |
| 7058215 | Data processing system, maintenance apparatus and image processing apparatus | Yuichi Ikeda, Kazuo Suzuki, Tomohisa Itagaki, Nobuhiko Zaima | 2006-06-06 |
| 6765692 | Image processing method and apparatus and image forming method and apparatus using the same | Jun Koide, Yuichi Ikeda | 2004-07-20 |
| 6535302 | Image processing apparatus and method | Yuichi Ikeda, Tetsuya Atsumi, Yasuhiro Saito | 2003-03-18 |
| 6519054 | Image processing apparatus and method | Yuichi Ikeda, Tetsuya Atsumi | 2003-02-11 |
| 6515769 | Image forming apparatus and method | Yuichi Ikeda | 2003-02-04 |
| 6486974 | Image reading device | Takehiko Nakai, Hiroshi Tanioka, Shinobu Arimoto, Kazuo Yoshinaga, Toshio Hayashi +2 more | 2002-11-26 |
| 6384857 | Apparatus for forming images, method of controlling the apparatus, and storage medium | Tetsuya Atsumi, Yuichi Ikeda, Yasuhiro Saitou | 2002-05-07 |
| 6320605 | Image information processing apparatus and method | Yuichi Ikeda, Tetsuya Atsumi, Yasuhiro Saito | 2001-11-20 |
| 6304341 | Image processing method and apparatus and image forming method and apparatus using the same | Jun Koide, Yuichi Ikeda | 2001-10-16 |
| 6201616 | Method and apparatus for determining a predetermined pattern on an original based on visible and invisible information on the original | Hiroshi Tanioka, Shinobu Arimoto, Kazuo Yoshinaga, Toshio Hayashi, Takehiko Nakai +3 more | 2001-03-13 |
| 6190058 | Image processing method and apparatus and image forming method and apparatus using the same | Jun Koide, Yuichi Ikeda | 2001-02-20 |
| 6184915 | Image processing apparatus and method | Tetsuya Atsumi, Yuichi Ikeda, Yasuhiro Saito | 2001-02-06 |
| 6172771 | Image forming system and calibration method for image forming conditions | Yuichi Ikeda, Tetsuya Atsumi, Yasuhiro Saito | 2001-01-09 |
| 6153879 | Invisible information detecting apparatus | Kazuo Yoshinaga, Hiroshi Tanioka, Shinobu Arimoto, Toshio Hayashi, Takehiko Nakai +2 more | 2000-11-28 |
| 6094281 | Image reading device with offset faces for visible and non-visible light sensors | Takehiko Nakai, Hiroshi Tanioka, Shinobu Arimoto, Kazuo Yoshinaga, Toshio Hayashi +2 more | 2000-07-25 |
| 6091512 | Image processing apparatus and method for improving image reproducibility | Yukio Watanabe, Tetsuya Atsumi, Yuichiro Toyohara | 2000-07-18 |