Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6411384 | OPTICAL ELEMENT MADE FROM FLUORIDE SINGLE CRYSTAL, METHOD FOR MANUFACTURING OPTICAL ELEMENT, METHOD FOR CALCULATING BIREFRINGENCE OF OPTICAL ELEMENT AND METHOD FOR DETERMINING DIRECTION OF MINIMUM BIREFRINGENCE OF OPTICAL ELEMENT | Shuuichi Takano | 2002-06-25 |
| 6377332 | Optical member for photolithography and photolithography apparatus | Masaki Shiozawa | 2002-04-23 |