Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7839582 | Optical element | — | 2010-11-23 |
| 6664998 | Compound optical device, compound optical unit including the compound optical device, and optical pickup apparatus including the compound optical unit | Tatsumaro Yamashita | 2003-12-16 |
| 6621771 | Disk drive with an objective lens disposed in an optical head moving along a transfer line not intersecting the center of rotation of a disk | Kenji Furuta, Tatsumaro Yamashita | 2003-09-16 |
| 6560188 | Compound optical unit mounted on optical device | Tatsumaro Yamashita | 2003-05-06 |
| 6282000 | Optical transmitting and receiving module | Kimihiro Kikuchi, Yoshihiro Someno, Atsunori Hattori | 2001-08-28 |
| 6142680 | Optical transmission/reception module | Kimihiro Kikuchi, Yoshihiro Someno, Atsunori Hattori | 2000-11-07 |
| 6127677 | Optical encoder having optical conductor at the outer circumference of rotor | Masanobu Tanaka, Tatsumaro Yamashita | 2000-10-03 |
| 6106160 | Optical transmitting and receiving module | Kimihiro Kikuchi, Yoshihiro Someno, Atsunori Hattori | 2000-08-22 |
| 6047097 | Optical coupler | Kimihiro Kikuchi, Yoshihiro Someno, Atsunori Hattori | 2000-04-04 |