Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12249452 | Ignition coil for use in internal combustion engine | Kohei Adachi, Shintaro Yamamura | 2025-03-11 |
| 7231049 | Electronic mailing system | Richard Eason | 2007-06-12 |
| 6978035 | Information hiding system, method, and printed matter into which information is hidden | Richard Eason, Kunihiro Tsuda | 2005-12-20 |
| 6742712 | Information card and information card system | Richard Eason, Kunihiro Tsuda | 2004-06-01 |
| 6697498 | Method and computer program product for hiding information in an indexed color image | Richard Eason, Michiharu Niimi | 2004-02-24 |
| 6473516 | Large capacity steganography | Richard Eason | 2002-10-29 |
| 5408459 | Opening/closing door mechanism for a recording/reproducing apparatus | Katuyoshi Itoh, Fuminori Imamura | 1995-04-18 |