Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7590858 | Authentication apparatus, user authentication method, user authentication card and storage medium | Takeshi Kubo, Kazuhiro Igarashi | 2009-09-15 |
| 7007168 | User authentication using member specifying discontinuous different coordinates | Takeshi Kubo, Kazuhiro Igarashi | 2006-02-28 |
| 6367015 | User authentication using member with either holes or projections | Takeshi Kubo, Kazuhiro Igarashi | 2002-04-02 |