Issued Patents 2023
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11835853 | Mask blank glass substrate | Naoki YARITA, Masaki Takeuchi | 2023-12-05 |
| 11757067 | Synthetic quartz glass cavity member, synthetic quartz glass cavity lid, optical device package, and making methods | Harunobu Matsui, Daiyu Okafuji, Hiroyuki Yamazaki, Masaki Takeuchi | 2023-09-12 |
| 11591260 | Large-size synthetic quartz glass substrate, evaluation method, and manufacturing method | Yoko Ishitsuka, Atsushi Watabe, Masaki Takeuchi | 2023-02-28 |