Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12242025 | Synthetic quartz glass substrate with antireflection film, window material, lid for optical element package, optical element package, and light irradiation device | Daijitsu Harada, Masaki Takeuchi | 2025-03-04 |
| 11757067 | Synthetic quartz glass cavity member, synthetic quartz glass cavity lid, optical device package, and making methods | Daijitsu Harada, Daiyu Okafuji, Hiroyuki Yamazaki, Masaki Takeuchi | 2023-09-12 |
| 11424389 | Synthetic quartz glass cavity member, synthetic quartz glass cavity lid, optical device package, and making methods | Daijitsu Harada, Daiyu Okafuji, Hiroyuki Yamazaki, Masaki Takeuchi | 2022-08-23 |
| 10865141 | Synthetic quartz glass lid precursor, synthetic quartz glass lid, and preparation methods thereof | Daijitsu Harada, Masaki Takeuchi | 2020-12-15 |
| 10756239 | Synthetic quartz glass lid and optical device package | Daijitsu Harada, Masaki Takeuchi | 2020-08-25 |
| 10680139 | Window member for optical device package, optical device package, making methods, and optical device-mountable package | Shuhei Ueda, Masaki Takeuchi | 2020-06-09 |
| 10093833 | Colloidal silica polishing composition and method for manufacturing synthetic quartz glass substrates using the same | Daijitsu Harada, Masaki Takeuchi | 2018-10-09 |
| 10086493 | Method for producing substrates | Daijitsu Harada, Masaki Takeuchi | 2018-10-02 |
| 10065285 | Method of preparing substrate | Daijitsu Harada, Atsushi Watabe, Shuhei Ueda, Masaki Takeuchi | 2018-09-04 |
| 9963634 | Synthetic quartz glass substrate polishing slurry and manufacture of synthetic quartz glass substrate using the same | Daijitsu Harada, Masaki Takeuchi | 2018-05-08 |
| 9731396 | Method of preparing synthetic quartz glass substrate | Daijitsu Harada, Masaki Takeuchi | 2017-08-15 |
| 9616542 | Manufacture of synthetic quartz glass substrate | Ryouhei Hasegawa, Daijitsu Harada, Masaki Takeuchi | 2017-04-11 |
| 9598305 | Synthetic quartz glass substrate and making method | Daijitsu Harada, Masaki Takeuchi | 2017-03-21 |
| 9309447 | Method for recovery of cerium oxide | Daijitsu Harada, Masaki Takeuchi | 2016-04-12 |
| 8951386 | Treatment of synthetic quartz glass substrate | Ryouhei Hasegawa, Masaki Takeuchi | 2015-02-10 |
| 8360824 | Method of processing synthetic quartz glass substrate for semiconductor | Daijitsu Harada, Masaki Takeuchi | 2013-01-29 |