Issued Patents All Time
Showing 26–30 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6243469 | Information transmission method and apparatus | Takenosuke Harada, Kazuhiro Machida, Isao Masuda | 2001-06-05 |
| 6240378 | Weighting method for use in information extraction and abstracting, based on the frequency of occurrence of keywords and similarity calculations | Takeshi Imanaka, Satoshi Matsuura | 2001-05-29 |
| 6064952 | Information abstracting method, information abstracting apparatus, and weighting method | Takeshi Imanaka, Satoshi Matsuura | 2000-05-16 |
| 6057887 | Method and apparatus for receiving a DTMF signal and displaying a figure based upon coordinate data obtained from the DTMF signal | Takeshi Imanaka, Hiroshi Kutsumi, Satoshi Matsuura | 2000-05-02 |
| 5617117 | Input device | Takeshi Imanaka, Atsushi Tanaka, Sozo Yamamoto | 1997-04-01 |