Issued Patents All Time
Showing 26–37 of 37 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5858613 | Optical recording medium | Atsushi Monden, Takahiko Suzuki, Emiko Kambe, Sumiko Kitagawa | 1999-01-12 |
| 5776656 | Optical recording medium | Sumiko Kitagawa, Kenryo Namba, Emiko Yoshimura, Atsushi Monden, Takahiko Suzuki | 1998-07-07 |
| 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 |
| 5574715 | Optical recording medium | Kenryo Namba, Tetsushi Inoue, Sumiko Kitagawa | 1996-11-12 |
| 5569504 | Optical recording medium | Sumiko Kitagawa, Kenryo Namba | 1996-10-29 |
| 5368988 | Optical recording medium | Kenryo Namba | 1994-11-29 |
| 5213859 | Optical recording disk | Toshiki Aoi | 1993-05-25 |
| 5161150 | Optical recording medium | Kenryo Namba, Sinichi Tezuka, Tetsushi Inoue, Toshiki Aoi, Suguru Takayama | 1992-11-03 |
| 5154958 | Optical recording medium | Kenryo Namba, Tetsushi Inoue, Sumiko Kitagawa | 1992-10-13 |