HI

Hirohisa Ishihara

AC Alps Electric Co.: 10 patents #159 of 2,177Top 8%
Tdk: 1 patents #2,493 of 3,796Top 70%
Overall (All Time): #467,611 of 4,157,543Top 15%
11
Patents All Time

Issued Patents All Time

Showing 1–11 of 11 patents

Patent #TitleCo-InventorsDate
7940497 Magnetic head device having rear positive pressure surface and rear side positive pressure surface Yasuyuki Kondo, Junsei Ueda 2011-05-10
7145752 Magnetic head apparatus having magnetic head slider and magnetic disk apparatus equipped with magnetic head apparatus Junsei Ueda, Yasuyuki Kondo, Satoshi Morikawa, Keishi Nakashima 2006-12-05
7130154 Magnetic head slider having protrusions provided on the medium-facing surface and manufacturing method therefor Tomoo Otsuka 2006-10-31
6839203 Magnetic head having raised element and magnetic head apparatus using the same Junsei Ueda, Tomoo Otsuka 2005-01-04
6728069 Magnetic head slider having protrusions with high abrasion resistance provided on the medium-facing surface and manufacturing method therefor Tomoo Otsuka 2004-04-27
6717772 Magnetic head slider having protrusions provided on the medium-facing surface and manufacturing method therefor Tomoo Otsuka 2004-04-06
6657819 Magnetic head having protrusion on medium opposing surface and magnetic recording apparatus 2003-12-02
6639756 Magnetic head having raised element and magnetic head apparatus using the same Junsei Ueda, Tomoo Otsuka 2003-10-28
6591478 Method of producing magnetic head Takao Soma, Tadashi Otagiri, Soichiro Matsuzawa 2003-07-15
6172850 Floating type magnetic head with non-magnetic thin film coating pattern to reduce starting friction 2001-01-09
6101066 Magnetic head, magnetic recording/reproducing apparatus Isao Nakabayashi 2000-08-08