Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11991327 | Image reading device having a reading unit that includes a position reference | — | 2024-05-21 |
| 10805500 | Image reading device | — | 2020-10-13 |
| 10419639 | Image reading apparatus that calculates correction values for correcting outputs of light receiving elements, and shading correcting method for correcting an image reading apparatus | Yoshiaki Watanabe, Tsuyoshi Yamauchi | 2019-09-17 |
| 8837008 | Image reading apparatus | Tsuyoshi Yoshida, Hiroyuki Takahara | 2014-09-16 |
| 7161716 | Image reading apparatus | Hirotoshi Kishi, Tsuyoshi Yamauchi, Toshio Takahashi | 2007-01-09 |
| 7136201 | Original pressing apparatus and its application | Tsuyoshi Yamauchi | 2006-11-14 |
| 6952292 | Image reading apparatus and method of supporting image reading unit | Yukitoshi Takeuchi | 2005-10-04 |
| 6717702 | Image reading apparatus | Tsuyoshi Yamauchi, Hirotoshi Kishi, Toshio Takahashi | 2004-04-06 |
| 6631014 | Image reading apparatus | Chikara Aoshima, Toshio Takahashi | 2003-10-07 |
| 6229646 | Plate-like polarizing element, a polarizing conversion unit provided with the element, and a projector provided with the unit | Hideaki Mitsutake, Noritaka Mochizuki, Kazumi Kimura, Junko Shingaki | 2001-05-08 |
| 5833341 | Illuminating optical system and projector utilizing the same | Kazumi Kimura, Hideaki Mitsutake, Kohtaro Yano, Junko Kuramochi | 1998-11-10 |
| 5749642 | Illuminating optical system and projector utilizing the same | Kazumi Kimura, Hideaki Mitsutake, Kohtaro Yano, Junko Kuramochi | 1998-05-12 |
| 5692819 | Illuminating device and projector utilizing the same | Hideaki Mitsutake, Kohtaro Yano, Kazumi Kimura, Junko Shingaki | 1997-12-02 |
| 5590942 | Polarizing conversion unit, illuminating device and projector using them | Kazumi Kimura, Hideaki Mitsutake | 1997-01-07 |
| 5566367 | Plate-like polarizing element, a polarizing conversion unit provided with the element, and a projector provided with the unit | Hideaki Mitsutake, Noritaka Mochizuki, Kazumi Kimura, Junko Shingaki | 1996-10-15 |
| 5461500 | Polarization converting apparatus and optical instrument having the same | Sadahiko Tsuji, Hidetoshi Suzuki, Hideaki Mitsutake, Katsumi Kurematsu, Noritaka Mochizuki +3 more | 1995-10-24 |
| 5387991 | Polarization converting device and polarized-light illuminating system using the device and image display unit using the device | Hideaki Mitsutake | 1995-02-07 |
| 5241416 | Screen and projector using said screen | Hideaki Mitsutake | 1993-08-31 |