Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9519358 | Pen-shaped coordinate indicator | — | 2016-12-13 |
| 6906694 | Electromagnetic digitizer and distortion-free LCD | Naohisa Iwamoto, Takashi Namura, Sadao Yamamoto | 2005-06-14 |
| RE35329 | Electronic blackboard and accessories such as writing tools | Azuma Murakami, Kazuo Aoki, Tsuguya Yamanami, Yoshiaki Tomofuji, Takeshi Tanaka +3 more | 1996-09-17 |
| 5444190 | Sensing unit for a position detecting apparatus and its manufacturing method | Tsuguya Yamanami | 1995-08-22 |
| 5134689 | Coordinate input system and input implement used in the system | Azuma Murakami, Tsuguya Yamanami, Takahiko Funahashi, Toshiaki Senda | 1992-07-28 |
| 5059749 | Input/output apparatus and method therefor | Azuma Murakami, Akio Kikuchi | 1991-10-22 |
| 5023408 | Electronic blackboard and accessories such as writing tools | Azuma Murakami, Kazuo Aoki, Tsuguya Yamanami, Yoshiaki Tomofuji, Takeshi Tanaka +3 more | 1991-06-11 |