Issued Patents All Time
Showing 1–25 of 33 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 | Harunobu Matsui, Masaki Takeuchi | 2025-03-04 |
| 12117724 | Mask blank glass substrate | Naoki YARITA, Masaki Takeuchi | 2024-10-15 |
| 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 |
| 11424389 | Synthetic quartz glass cavity member, synthetic quartz glass cavity lid, optical device package, and making methods | Harunobu Matsui, Daiyu Okafuji, Hiroyuki Yamazaki, Masaki Takeuchi | 2022-08-23 |
| 10948817 | Mold-forming substrate and inspection method | Masaki Takeuchi | 2021-03-16 |
| 10865139 | Large-size synthetic quartz glass substrate, evaluation method, and manufacturing method | Yoko Ishitsuka, Atsushi Watabe, Masaki Takeuchi | 2020-12-15 |
| 10865141 | Synthetic quartz glass lid precursor, synthetic quartz glass lid, and preparation methods thereof | Harunobu Matsui, Masaki Takeuchi | 2020-12-15 |
| 10829411 | Rectangular glass substrate and method for preparing the same | Masaki Takeuchi | 2020-11-10 |
| 10756239 | Synthetic quartz glass lid and optical device package | Harunobu Matsui, Masaki Takeuchi | 2020-08-25 |
| 10737966 | Method for preparing synthetic quartz glass substrate | Yoko Ishitsuka, Atsushi Watabe, Masaki Takeuchi | 2020-08-11 |
| 10611676 | Method for preparing synthetic quartz glass substrate | Kazuo Shirota, Hisashi Yagi, Masaki Takeuchi | 2020-04-07 |
| 10558116 | Method for preparing synthetic quartz glass substrate | Hisashi Yagi, Masaki Takeuchi, Kazuo Shirota, Kazuhiko Aoki | 2020-02-11 |
| 10093833 | Colloidal silica polishing composition and method for manufacturing synthetic quartz glass substrates using the same | Harunobu Matsui, Masaki Takeuchi | 2018-10-09 |
| 10086493 | Method for producing substrates | Harunobu Matsui, Masaki Takeuchi | 2018-10-02 |
| 10065285 | Method of preparing substrate | Harunobu Matsui, 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 | Harunobu Matsui, Masaki Takeuchi | 2018-05-08 |
| 9919962 | Polishing agent for synthetic quartz glass substrate | Masaki Takeuchi, Yukio Shibano, Shuhei Ueda, Atsushi Watabe | 2018-03-20 |
| 9731396 | Method of preparing synthetic quartz glass substrate | Harunobu Matsui, Masaki Takeuchi | 2017-08-15 |
| 9616542 | Manufacture of synthetic quartz glass substrate | Ryouhei Hasegawa, Harunobu Matsui, Masaki Takeuchi | 2017-04-11 |
| 9598305 | Synthetic quartz glass substrate and making method | Harunobu Matsui, Masaki Takeuchi | 2017-03-21 |
| 9505166 | Rectangular mold-forming substrate | Daiyu Okafuji, Hiroyuki Yamazaki, Masaki Takeuchi | 2016-11-29 |
| 9487426 | Heat treatment method of synthetic quartz glass | Hisashi Yagi, Masaki Takeuchi | 2016-11-08 |
| 9316902 | Photomask-forming glass substrate and making method | Mamoru Morikawa, Masaki Takeuchi, Yukio Shibano | 2016-04-19 |