Issued Patents All Time
Showing 1–25 of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12406694 | Magnetic disk-use glass substrate manufacturing method, discoidal glass substrate, glass substrate, and magnetic disk-use glass substrate | Shuhei AZUMA | 2025-09-02 |
| 12365815 | Polishing liquid, polishing liquid set, polishing method, and defect suppression method | Hisato Takahashi, Masayuki Hanano | 2025-07-22 |
| 12344545 | Method for manufacturing glass plate, method for manufacturing magnetic-disk glass substrate, and method for manufacturing magnetic disk | Shuhei AZUMA | 2025-07-01 |
| 12266389 | Magnetic disk substrate, magnetic disk, annular-shaped substrate, and method for manufacturing magnetic disk substrate | Shuhei AZUMA | 2025-04-01 |
| 12252633 | Polishing liquid and method for manufacturing glass substrate | — | 2025-03-18 |
| 12094506 | Magnetic-disk substrate and magnetic disk | Masanobu Itaya, Kinobu Osakabe | 2024-09-17 |
| 11926764 | Polishing solution, polishing solution set, polishing method, and defect suppressing method | Masayuki Hanano, Hisato Takahashi | 2024-03-12 |
| 11680187 | Polishing liquid, method for manufacturing glass substrate, and method for manufacturing magnetic disk | — | 2023-06-20 |
| 11649377 | Polishing liquid, polishing liquid set and polishing method | Masayuki Hanano | 2023-05-16 |
| 11587585 | Magnetic-disk substrate and magnetic disk | Masanobu Itaya, Kinobu Osakabe | 2023-02-21 |
| 11214713 | Polishing liquid, method for manufacturing glass substrate, and method for manufacturing magnetic disk | — | 2022-01-04 |
| 11081134 | Hard disk drive with magnetic-disk substrate and hard disk drive with magnetic disk | Masanobu Itaya, Kinobu Osakabe | 2021-08-03 |
| 10607647 | Magnetic disk substrate with specified changes in height or depth between adjacent raised or lowered portions and an offset portion on a main surface within a range of 92.0 to 97.0% in a radial direction from a center, a magnetic disk with substrate and magnetic disk device | Kraisorn Phandon, Kenichi Nishimori | 2020-03-31 |
| 10283156 | Magnetic-disk substrate and magnetic disk | Masanobu Itaya, Kinobu Osakabe | 2019-05-07 |
| 10155886 | Polishing liquid for CMP, and polishing method | Munehiro Oota, Hisataka Minami, Toshiaki Akutsu, Tomohiro Iwano | 2018-12-18 |
| 9697861 | Magnetic disk substrate with specified changes in height or depth between adjacent raised or lowered portions and an offset portion on a main surface within a range of 92.0 to 97.0% in a radial direction from a center, a magnetic disk with substrate and a magnetic disk device with magnetic disk | Kraisorn Phandon, Kenichi Nishimori | 2017-07-04 |
| 9564166 | Magnetic-disk glass substrate and magnetic disk | Masanobu Itaya, Kinobu Osakabe | 2017-02-07 |
| 9564337 | Polishing liquid and method for polishing substrate using the polishing liquid | Munehiro Oota, Takaaki Tanaka, Shigeru Yoshikawa, Takaaki Matsumoto, Takahiro Yoshikawa +1 more | 2017-02-07 |
| 9183866 | Magnetic disk substrate with offset portion on a main surface within a range of 92.0 to 97.0% in a radial direction from a center, magnetic disk with substrate and magnetic disk device | Kraisorn Phandon, Kenichi Nishimori | 2015-11-10 |
| 9038417 | Method for producing glass substrate for magnetic disk and method for manufacturing magnetic disk | Takumi Koshimizu, Yoshinori Marumo, Masahiro Katagiri | 2015-05-26 |
| 8986859 | Magnetic disk substrate, magnetic disk, and magnetic disk device | Kraisorn Phandon, Kenichi Nishimori | 2015-03-24 |
| 8763428 | Method for producing glass substrate for magnetic disk and method for manufacturing magnetic disk | Takumi Koshimizu, Yoshinori Marumo, Masahiro Katagiri | 2014-07-01 |
| 8241768 | Magnetic disk substrate, magnetic disk, and magnetic disk device | Kraisom Phandon, Kenichi Nishimori | 2012-08-14 |
| 6387425 | Method for producing low potassium juice with improved taste and product thereof | Yuko Kinoshita, Toshio Kinoshita, Koji Katamune, Takushi Goto | 2002-05-14 |
| 6248362 | Large intestinal delivery composite | Shigeru Tominaga, Masahiko Yamada | 2001-06-19 |