Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12431161 | Data storage device with track pitch determination for mitigating effects of servo pattern distortion | Hideki Zaitsu, So Ogiwara, Yoshio Soyama, Kei Yasuna | 2025-09-30 |
| 12312650 | Ferritic stainless steel sheet and method for manufacturing the same | Masataka Yoshino, Fagang Gao, Hiroshi Yamaguchi | 2025-05-27 |
| 12305247 | Stainless steel sheet and methods for manufacturing the same | Ayako Ta | 2025-05-20 |
| 11401573 | Ferritic stainless steel sheet and method for manufacturing the same | Tomohiro Ishii, Masataka Yoshino, Mitsuyuki Fujisawa | 2022-08-02 |
| 11220732 | Ferritic stainless steel sheet | Hidetaka Kawabe, Mitsuyuki Fujisawa, Chikara Kami | 2022-01-11 |
| 8861116 | Track pitch variation measurement method using spiral DC pattern writing | Mao Nishiyama, Masafumi Mochizuki, Kyo Akagi, Kazunari Usui | 2014-10-14 |
| 8717708 | Magnetic head and magnetic disk apparatus | Mao Nishiyama, Hideaki Maeda, Masafumi Mochizuki | 2014-05-06 |
| 8339749 | Perpendicular magnetic recording head, magnetic head, and magnetic disk device mounted with these heads | Masafumi Mochizuki, Hideaki Maeda, Takaaki Izumida | 2012-12-25 |
| 8107180 | Hard-disk drive and control method for magnetic recording on a patterned medium of the hard-disk drive | Yasutaka Nishida, Masafumi Mochizuki, Hideaki Maeda | 2012-01-31 |
| 7990653 | Perpendicular recording magnetic head with a main magnetic pole piece and an auxiliary magnetic pole piece | Masafumi Mochizuki, Kimitoshi Etoh, Isao Nunokawa | 2011-08-02 |
| 7944646 | Magnetic disk drive | Masafumi Mochizuki, Yukiya Shimizu | 2011-05-17 |