Issued Patents All Time
Showing 51–57 of 57 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8361916 | Optical glass and preforms for precision press molding and optical elements made by using the glass | Satoru TOMENO, Jun Sasai, Hiroyuki Ohkawa, Kenji Imakita | 2013-01-29 |
| 8349455 | Glass and chemically tempered glass | Hiroyuki Ohkawa, Makoto Sano, Kazutaka Hayashi, Shusaku Akiba | 2013-01-08 |
| 8053383 | Light-amplifying glass | Seiki Ohara | 2011-11-08 |
| 7369733 | Glass optical waveguide | Motoshi Ono, Naoki Sugimoto | 2008-05-06 |
| 6729161 | Method of selectively reforming an inner part of an inorganic body | Kiyotaka Miura, Jianrong Qiu, Kazuyuki Hirao | 2004-05-04 |
| 6640039 | Optical waveguide array and method of manufacturing the same | Kiyotaka Miura, Kazuyuki Hirao | 2003-10-28 |
| 6599852 | Optical amplifying glass | Setsuro Ito, Naoki Sugimoto, Tatsuo Nagashima, Setsuhisa Tanabe | 2003-07-29 |