Issued Patents 2022
Showing 1–6 of 6 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, Ryo Sakamoto, Hiroki Ota | 2022-10-25 |
| 11423937 | Aluminum alloy substrate for magnetic disk, method for producing the same, and magnetic disk using aluminum alloy substrate for magnetic disk | Kotaro KITAWAKI, Takashi Nakayama, Yasuo Fujii, Wataru Kumagai | 2022-08-23 |
| 11404082 | Aluminium alloy substrate for magnetic disk, method for fabricating the same, and magnetic disk composed of aluminium alloy substrate for magnetic disk | Kotaro KITAWAKI, Makoto Yonemitsu, Takashi Nakayama, Kimie IMAKAWA | 2022-08-02 |
| 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, Sadayuki Toda, Ryo Sakamoto, 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, Ryo Sakamoto +1 more | 2022-03-08 |