TO

Tetsuya Okai

HG HGST: 6 patents #1,032 of 1,677Top 65%
HI Hitachi: 5 patents #7,555 of 28,497Top 30%
HB Hgst Netherlands, B.V.: 2 patents #341 of 972Top 40%
Overall (All Time): #384,899 of 4,157,543Top 10%
13
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
8542462 Perpendicular magnetic recording head having a non-magnetic film recessed from the air bearing surface for improved high-density magnetic recording Yohji Maruyama, Tadayuki Iwakura, Hiromi Shiina, Kazue Kudo 2013-09-24
8537493 Magnetic head for perpendicular recording Kazue Kudo, Hiromi Shiina, Yohji Maruyama, Shouji Tokutake 2013-09-17
8351156 Perpendicular magnetic recording head having a main pole and first and second magnetic films peripheral to the main pole and having different depths from an air bearing surface Kazue Kudo, Hiromi Shiina, Yohji Maruyama, Gen Oikawa, Shouji Tokutake 2013-01-08
7515380 Magnetic head and method for production therefor Kazue Kudo, Gen Oikawa, Ichiro Oodake, Hiromi Shiina 2009-04-07
7382576 Thin film magnetic head and magnetic disk apparatus including the same Tomohiro Okada, Shinobu Sasaki, Tadayuki Iwakura, Naoki Koyama, Takashi Kawabe +2 more 2008-06-03
7267757 Magnetic head utilizing a CoNiFe alloy with 60-80 weight percent Fe and method for production therefor Kazue Kudo, Gen Oikawa, Ichiro Oodake, Hiromi Shiina 2007-09-11
7068467 Thin film magnetic head and magnetic disk apparatus including the same Tomohiro Okada, Shinobu Sasaki, Tadayuki Iwakura, Naoki Koyama, Harunobu Saito +1 more 2006-06-27
6898057 Thin film magnetic head having multiple layered films determining track width imbedded in an insulating film and method of manufacturing the same Makoto Morijiri, Yoji Maruyama, Kimitoshi Etoh 2005-05-24
6877212 Manufacturing method of a thin film magnetic head Tomohiro Okada, Shinobu Sasaki, Tadayuki Iwakura, Naoki Koyama, Harunobu Saito +1 more 2005-04-12
6483663 Thin film magnetic head and magnetic disk apparatus including the same Tomohiro Okada, Shinobu Sasaki, Tadayuki Iwakura, Naoki Koyama, Takashi Kawabe +2 more 2002-11-19
5687045 Thin film magnetic head and production method thereof and magnetic disk drive equipped with this thin film magnetic head Moriaki Fuyama, Akira Onuma, Eiji Ashida, Hiroshi Ikeda, Saburo Suzuki +3 more 1997-11-11
5316617 Thin film magnetic head and method of manufacturing the same Takashi Kawabe, Moriaki Fuyama, Shinji Narishige, Akira Onuma, Yutaka Sugita +1 more 1994-05-31
4971896 Method for forming thin film pattern and method for fabricating thin film magnetic head using the same Takashi Kawabe, Ataru Kobayashi, Moriaki Fuyama, Makoto Morijiri, Eiji Ashida +5 more 1990-11-20