Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7174036 | Fingerprint identification method and system, and biometrics identification system | — | 2007-02-06 |
| 7079833 | Mobile radio terminal and network commerce system using the same | — | 2006-07-18 |
| 6031809 | Aperture-limiting element and optical head utilizing the same | — | 2000-02-29 |
| 5892744 | Optical disk drive tracking error detection unit | — | 1999-04-06 |
| 5802036 | Optical head device utilizing super-resolution technique | Masahiko Sato, Jun Takahashi | 1998-09-01 |
| 5724334 | Optical head device utilizing super-resolution technique | Masahiko Sato, Jun Takahashi | 1998-03-03 |
| 5708648 | Optical head apparatus including light focusing and refocusing lens systems | — | 1998-01-13 |
| 5036504 | Optical head using a reflection grating | Yuzo Ono, Yasuo Kimura | 1991-07-30 |