Issued Patents 1989
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4875987 | Grooved magnetic substrates and method for producing the same | Yoshiaki Katsuyama, Junichi Nakaoka | 1989-10-24 |
| 4859638 | Magnetic head sliders, materials therefor, and the process for the production thereof | Yoshiaki Katsuyama, Mitsuhiko Furukawa, Takashi Kitahira, Michito Miyahara, Kiyohito Misumi +1 more | 1989-08-22 |
| 4855854 | Thin-film magnetic head | Akio Murata | 1989-08-08 |
| 4828905 | Magnetic recording medium | Masateru Nose | 1989-05-09 |
| 4816128 | Process for producing substrate member for magnetic recording disc | Junichi Nakaoka, Takayuki Ono | 1989-03-28 |
| 4814915 | Magnetic head slider and material therefor | Mitsuhiko Furukawa, Masaharu Shiroyama, Michito Miyahara, Shigeki Mohri, Mitsuyoshi Nagano | 1989-03-21 |
| 4808455 | Magnetic recording disc and process for producing the same | Yoshiaki Katsuyama, Junichi Nakaoka | 1989-02-28 |
| 4794736 | Arrangement for mechanically and accurately processing a workpiece with a position detecting pattern or patterns | Shigehiro Fuwa, Naoki Fujii, Toshikazu Hatsuse, Masaru Ito, Junichi Nakaoka | 1989-01-03 |
| 4796127 | Recording head slider | Mitsuhiko Furukawa, Masaharu Shiroyama, Michito Miyahara, Mitsuyoshi Nagano, Shigeki Mohri | 1989-01-03 |