Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6768556 | Near-field optical probe, near-field optical microscope and optical recording/reproducing device with near-field optical probe | Takuya Matsumoto, Takeshi Shimano, Sumio Hosaka | 2004-07-27 |
| 6687013 | Laser interferometer displacement measuring system, exposure apparatus, and electron beam lithography apparatus | Masakazu Sugaya, Tatsundo Suzuki, Masahiro Yamaoka, Sumio Hosaka | 2004-02-03 |