Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6654179 | Wide converter lens system for both underwater and above-water use | — | 2003-11-25 |
| 6518714 | Flash lamps for underwater photography | Yoshiyuki Takematsu | 2003-02-11 |
| 6512887 | Flash lamps for underwater photography provided with target light and control methods and devices therefor | Yoshiyuki Takematsu | 2003-01-28 |