Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7821468 | Chip antenna, an antenna device, and a communication equipment | Hiroyuki Aoyama, Masayuki Gonda, Sigeo Fujii | 2010-10-26 |
| 6811606 | Manufacturing method for calcium fluoride and calcium fluoride for photolithography | Shigeru Sakuma, Tsutomu Mizugaki, Kazuo Kimura | 2004-11-02 |
| 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 | Shigeru Sakuma | 2002-06-25 |
| 6332922 | Manufacturing method for calcium fluoride and calcium fluoride for photolithography | Shigeru Sakuma, Tsutomu Mizugaki, Kazuo Kimura | 2001-12-25 |
| 6201634 | 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 | Shigeru Sakuma | 2001-03-13 |
| 6146456 | Method for annealing single crystal fluoride and method for manufacturing the same | Tsutomu Mizugaki | 2000-11-14 |
| 6123764 | Manufacturing method for calcium fluoride crystal and processing method for calcium fluoride powder | Tsutomu Mizugaki, Kazuo Kimura | 2000-09-26 |