Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5621515 | Identification system using regions of predetermined properties interspersed among regions of other properties | Kazuhiro Kitada | 1997-04-15 |
| 5601931 | Object to be checked for authenticity and a method for manufacturing the same | Itsuo Takeuchi, Masumi Yoda, Minoru Komiya, Tsugutaka Sugahara | 1997-02-11 |
| 5602381 | Objects to be checked for authenticity, and method and apparatus for checking whether or not objects are authentic | Itsuo Takeuchi, Masumi Yoda, Tatsuya Kurihara, Minoru Komiya | 1997-02-11 |
| 5594229 | Method and apparatus for checking the authenticity of a checking object by detecting magnetic flux reversals | Tatsuya Kurihara | 1997-01-14 |