Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5917108 | Drawing a chalcogenide glass fiber in a sulfur atmosphere | Katsuhisa Itoh | 1999-06-29 |
| 5764661 | Laser glasses and laser glass fibers | Hiroaki Yanagita, Katsuhisa Itoh, Hisayoshi Toratani | 1998-06-09 |