Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6589893 | Glass-ceramics having hexacelsian as a primary crystal phase, magnetic disk substrate and magnetic disk | Masahiro Abe, Takahiro Takahashi, Atsushi Watanabe | 2003-07-08 |
| 6086977 | Substrates for magnetic discs, magnetic discs and process for producing magnetic discs | Tomio Suzuki, Masahiro Abe | 2000-07-11 |
| 6048589 | Substrates for magnetic discs, magnetic discs and process for producing magnetic discs | Tomio Suzuki, Masahiro Abe | 2000-04-11 |
| 5788731 | Process for manufacturing a crystallized glass substrate for magnetic discs | Tomio Suzuki | 1998-08-04 |
| 5486969 | Magnetic head core having ferrite member reinforced by non-magnetic material | Tomio Suzuki | 1996-01-23 |
| 5138508 | Magnetic head core | Soichiro Matsuzawa, Nobuhiro Terada | 1992-08-11 |
| 5107382 | Head core slider having an air bearing surface of a particular configuration | Soichiro Matsuzawa, Nobuhiro Terada, Michael I. Aronoff | 1992-04-21 |
| 5104483 | Method of producing a negative-pressure type magnetic head slider | — | 1992-04-14 |
| 5025343 | Magnetic head core utilizing a non-magnetic layer | Shinzi Iida, Shinya Aoki | 1991-06-18 |
| 5019930 | Negative-pressure type magnetic head slider, and method of producing the same | — | 1991-05-28 |
| 5014414 | Method for producing a magnetic head core | Soichiro Matsuzawa, Nobuhiro Terada | 1991-05-14 |
| 5012572 | Method for producing a head core slider | Soichiro Matsuzawa | 1991-05-07 |
| 4982065 | Method of producing a core for magnetic head | Hideto Sandaiji | 1991-01-01 |
| 4967466 | Method for producing magnetic head core | Shinya Aoki, Shinzi Iida | 1990-11-06 |
| 4948460 | Method of producing head core slider for rigid magnetic disk drive, utilizing laser-induced etching | Hideto Sandaiji, Nobuhiro Terada | 1990-08-14 |
| 4875970 | Method of forming recessed profile on ferrite single crystal by chemical etching | Naoya Fukuda, Miki Suzuki | 1989-10-24 |