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Patent applications and USPTO patent grants for Matsukuma; Koji.The latest application filed is for "etching mask and magnetic head device".
Patent | Date |
---|---|
Etching mask and magnetic head device Grant 6,713,368 - Matsukuma March 30, 2 | 2004-03-30 |
Method of manufacturing thin-film magnetic head Grant 6,604,275 - Mino , et al. August 12, 2 | 2003-08-12 |
Etching mask and magnetic head device App 20010046790 - Matsukuma, Koji | 2001-11-29 |
Patterning method using mask and manufacturing method for composite type thin film magnetic head using the patterning method App 20010019035 - Uno, Yasufumi ;   et al. | 2001-09-06 |
Thin-film magnetic head having a three-layer pole tip structure Grant 6,169,642 - Mino , et al. January 2, 2 | 2001-01-02 |
Thin film magnetic head Grant 6,151,193 - Terunuma , et al. November 21, 2 | 2000-11-21 |
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