47 Papers
291 Citations
Naoki Watanabe is an academic researcher from National Institute of Advanced Industrial Science and Technology. The author has contributed to research in topics: Magnetoresistance & Layer (electronics). The author has an hindex of 10, co-authored 47 publications.
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Papers
230% room temperature magnetoresistance in CoFeB/MgO/CoFeB magnetic tunnel junctions
David D. Djayaprawira,K. Tsunekawa,Motonobu Nagai,H. Maehara,Shinji Yamagata,Naoki Watanabe,Shinji Yuasa,Koji Ando +7 more
- 04 Apr 2005
TL;DR: The magnetoresistance ratio of 230% at room temperature is reported in spin-valve type magnetic tunnel junctions using MgO barrier layer and amorphous CoFeB ferromagnetic electrodes fabricated on thermally oxidized Si substrates.
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Tunneling spectra of sputter-deposited CoFeB/MgO/CoFeB magnetic tunnel junctions showing giant tunneling magnetoresistance effect
Rie Matsumoto,Yusuke Hamada,Masaki Mizuguchi,Masashi Shiraishi,H. Maehara,Koji Tsunekawa,David D. Djayaprawira,Naoki Watanabe,Yoshinari Kurosaki,Taro Nagahama,Akio Fukushima,Hitoshi Kubota,Shinji Yuasa,Shinji Yuasa,Yoshishige Suzuki,Yoshishige Suzuki +15 more
TL;DR: In this article, the authors measured differential tunneling conductance (d I/d V, d 2 I /d V 2 ) spectra of spin-valve-type magnetic tunnel junctions (MTJs) with a MgO(001) tunnel barrier layer and amorphous CoFeB ferromagnetic electrodes that show 315% magnetoresistance (MR) ratio at 4.3
81
Patent
Method, systems and computer program products for checking the validity of data
Hirokazu Aoshima,Hiroshi Yoshiura,Atsushi Ugajin,Eiichi Kamada,Naoki Watanabe +4 more
- 26 Jun 2002
TL;DR: In this paper, a data verifying system is installed in a network interconnecting the data requesting system and data providing system, which checks whether verification data for supplied data matches the supplied data.
25
Patent
Multilayer film deposition apparatus, and method and apparatus for manufacturing perpendicular-magnetic-recording media
Masahiro Shibamoto,Shinji Furukawa,Tetsuya Endoh,Sakai Miho,Naoki Watanabe +4 more
- 26 Jul 2002
TL;DR: In this article, a multi-layer film deposition apparatus is described, consisting of a main rotation mechanism for rotating each cathode together, and a substrate holder to hold a substrate onto which a multilayer film is deposited by sputtering.
22
Patent
Magnetic recording disk, magnetic recording disk manufacturing method and magnetic recording disk manufacturing system
Masahiro Shibamoto,Sinji Furukawa,Tetsuya Endo,Sakai Miho,Naoki Watanabe +4 more
- 25 Apr 2005
TL;DR: In this paper, an anisotropy-allowing layer to allow magnetic anisotropic to a magnetic recording layer is provided between a substrate and the magnetic recording layers, and a magnetic-recording-disk manufacturing method is presented.
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