Issued Patents All Time
Showing 26–44 of 44 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6201616 | Method and apparatus for determining a predetermined pattern on an original based on visible and invisible information on the original | Nobuatsu Sasanuma, Hiroshi Tanioka, Shinobu Arimoto, Kazuo Yoshinaga, Toshio Hayashi +3 more | 2001-03-13 |
| 6153879 | Invisible information detecting apparatus | Kazuo Yoshinaga, Hiroshi Tanioka, Shinobu Arimoto, Toshio Hayashi, Tsutomu Utagawa +2 more | 2000-11-28 |
| 6122104 | Diffractive optical element and optical system having the same | — | 2000-09-19 |
| 6094281 | Image reading device with offset faces for visible and non-visible light sensors | Hiroshi Tanioka, Shinobu Arimoto, Kazuo Yoshinaga, Toshio Hayashi, Tsutomu Utagawa +2 more | 2000-07-25 |
| 6078682 | Image processing apparatus and method, and image reading apparatus | Hiroshi Tanioka, Shinobu Arimoto, Yoshinobu Sato, Kazuo Yoshinaga, Toshio Hayashi +5 more | 2000-06-20 |
| 6051826 | Photosensor with filter for cutting off the input of invisible information | Shinobu Arimoto, Kazuo Yoshinaga, Toshio Hayashi, Tsutomu Utagawa, Tetsuya Nagase +1 more | 2000-04-18 |
| 6028705 | Image reading apparatus with reflection type blazed diffraction grating for color separation | — | 2000-02-22 |
| 5763891 | Non-visualized information recording medium and apparatus for detecting the same | Kazuo Yoshinaga, Shinobu Arimoto, Toshio Hayashi, Tsutomu Utagawa, Tetsuya Nagase +1 more | 1998-06-09 |
| 5737113 | Optical modulators and color image display device employing the same | Junko Kuramochi, Michitaka Setani, Saburo Sugawara | 1998-04-07 |
| 5724152 | Image reading apparatus and image processing apparatus for reading optical information of visible and non-visible light | Toshio Hayashi, Hiroshi Tanioka, Shinobu Arimoto, Kazuo Yoshinaga, Tsutomu Utagawa +2 more | 1998-03-03 |
| 5650863 | Image reading and copying using plural illumination sources having different characteristics | Tsutomu Utagawa, Shinobu Arimoto, Kazuo Yoshinaga, Toshio Hayashi, Tetsuya Nagase +1 more | 1997-07-22 |
| 5631723 | Image processing apparatus for determining whether an image contains a particular pattern using invisible light | Shinobu Arimoto, Katsuichi Shimizu, Yutaka Komiya, Kazuo Yoshinaga, Toshio Hayashi +3 more | 1997-05-20 |
| 5617187 | Image reading apparatus, copying apparatus, image processing apparatus, and image processing method | Toshio Hayashi, Shinobu Arimoto, Kazuo Yoshinaga, Tsutomu Utagawa, Tetsuya Nagase +1 more | 1997-04-01 |
| 5503904 | Invisible information recorded medium | Kazuo Yoshinaga, Hiroshi Tanioka, Shinobu Arimoto, Toshio Hayashi, Tsutomu Utagawa +2 more | 1996-04-02 |
| 5481334 | Image processing apparatus having means for detecting non-visible light, and image processing method therefor | Shinobu Arimoto, Katsuichi Shimizu, Yutaka Komiya, Kazuo Yoshinaga, Toshio Hayashi +3 more | 1996-01-02 |
| 5471281 | Image reading apparatus and copying apparatus having means for radiating visible and non-visible light, image processing apparatus having means for discriminating a specific orginal and image processing method therefor | Toshio Hayashi, Shinobu Arimoto, Kazuo Yoshinaga, Tsutomu Utagawa, Tetsuya Nagase +1 more | 1995-11-28 |
| 5362957 | Image reading apparatus | Michitaka Setani | 1994-11-08 |
| 5187606 | Scanning optical apparatus | Kazuyuki Kondo, Masamichi Tateoka | 1993-02-16 |
| 5113067 | Image reading apparatus having a blazed diffraction grating | Michitaka Setani | 1992-05-12 |