Issued Patents All Time
Showing 26–33 of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6836304 | Method of manufacturing an image display medium capable of displaying an image repeatedly, and image display medium capable of displaying an image repeatedly | Motohiko Sakamaki, Yasufumi Suwabe, Kiyoshi Shigehiro, Yoshinori Machida, Takeshi Matsunaga +4 more | 2004-12-28 |
| 6636186 | Image display medium, device and method | Yoshiro Yamaguchi, Kiyoshi Shigehiro, Motohiko Sakamaki, Nobuyuki Nakayama, Kazunaga Horiuchi +1 more | 2003-10-21 |
| 6473586 | Developing unit and image forming apparatus using the same | Akihiko Noda, Masaaki Yamaura | 2002-10-29 |
| 6411316 | Image display medium, image-forming method, image-forming apparatus and initializer | Kiyoshi Shigehiro, Yoshiro Yamaguchi, Yoshinori Machida, Nobuyuki Nakayama, Motohiko Sakamaki +2 more | 2002-06-25 |
| 6407763 | Image display medium, image-forming method and image-forming apparatus capable of repetitive writing on the image display medium | Yoshiro Yamaguchi, Yoshinori Machida, Kiyoshi Shigehiro, Nobuyuki Nakayama, Motohiko Sakamaki +2 more | 2002-06-18 |
| 6333754 | Image displaying medium containing at least two kinds of particles having different colors and different characteristics, method for displaying image using same and image displaying apparatus including same | Kiyoshi Shigehiro, Yoshinori Machida, Nobuyuki Nakayama, Yoshiro Yamaguchi, Motohiko Sakamaki +2 more | 2001-12-25 |
| 5887233 | Photographic developing apparatus and electrifying apparatus | Jun Abe, Noriaki Yamazaki, Akihiko Noda, Shinichi Kuramoto | 1999-03-23 |
| 5222307 | Drying method and apparatus therefor | Yoichi Oba | 1993-06-29 |