Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6473232 | Optical system having a diffractive optical element, and optical apparatus | — | 2002-10-29 |
| 6393691 | Electronic chip component and manufacturing method thereof | Nobuhiro Umeyama, Hideo Aoba | 2002-05-28 |
| 6381079 | Optical system and optical apparatus having the same | — | 2002-04-30 |