Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6465657 | Method of preparing refined organic compound for use in photography with improved liquid-liquid extraction from organic reaction mixture | Noboru Tanaka | 2002-10-15 |
| 6388844 | Head base shift mechanism in cassette tape recorder of automatic reverse tape | Takaichi Shimbo | 2002-05-14 |