Issued Patents 2017
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9851633 | Inorganic material film, photomask blank, and method for manufacturing photomask | Kouhei Sasamoto, Hideo Nakagawa | 2017-12-26 |
| 9798229 | Designing of photomask blank and photomask blank | Kouhei Sasamoto, Hideo Kaneko, Yukio Inazuki | 2017-10-24 |
| 9798230 | Photomask blank | Kouhei Sasamoto | 2017-10-24 |
| 9689066 | Photomask blank manufacturing method, photomask blank, photomask, and pattern transfer method | Hiroki Yoshikawa, Yukio Inazuki, Hideo Nakagawa | 2017-06-27 |
| 9618838 | Photomask blank | Yukio Inazuki | 2017-04-11 |
| 9581892 | Method of manufacturing photomask blank and photomask blank | Yukio Inazuki | 2017-02-28 |
| 9541823 | Photomask blank | Kouhei Sasamoto, Yukio Inazuki, Hideo Nakagawa, Hideo Kaneko | 2017-01-10 |