Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5683855 | Printable members | Kenryo Namba | 1997-11-04 |
| 5679430 | Optical recording medium | Sumiko Kitagawa, Takahiko Suzuki, Kenryo Namba | 1997-10-21 |
| 5604004 | Optical recording medium using formazan metal complex dye and photo-stabilizing method | Takahiko Suzuki, Kenryo Namba | 1997-02-18 |
| 5599649 | Optical recording medium | Kenryo Namba | 1997-02-04 |