Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9976232 | Artificial quartz crystal growth method | Yu Shirai, Sugao Yamaguchi, Takumi Shitara | 2018-05-22 |
| 8257675 | Artificial quartz member, process for producing the same, and optical element comprising the same | Noriyuki Agata, Shinya Kikugawa, Yutaka Shimizu, Kazumi Yoshida | 2012-09-04 |