Issued Patents 2022
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11482251 | Aluminum alloy substrate for magnetic disk and method for manufacturing same, aluminum alloy base disk for magnetic disk and method for manufacturing same, and magnetic disk and method for manufacturing the same | Takuya Murata, Kotaro KITAWAKI, Makoto Yonemitsu, Hideyuki Hatakeyama, Hiroki Ota | 2022-10-25 |
| 11361791 | Aluminum alloy sheet for magnetic disk and production method therefor, and magnetic disk using said aluminum alloy sheet for magnetic disk | Kotaro KITAWAKI, Makoto Yonemitsu, Hideyuki Hatakeyama, Sadayuki Toda, Yasuo Fujii | 2022-06-14 |
| 11341995 | Aluminum alloy sheet for magnetic disk and production method therefor, and magnetic disk using said aluminum alloy sheet for magnetic disk | Kotaro KITAWAKI, Yu Igarashi, Keisuke KAMIYA, Yu Matsui, Makoto Yonemitsu +2 more | 2022-05-24 |
| 11270730 | Magnetic disk substrate, method for manufacturing same and magnetic disk | Takuya Murata, Kotaro KITAWAKI, Makoto Yonemitsu, Yasuo Fujii, Hideyuki Hatakeyama +1 more | 2022-03-08 |