YH

Yasuo Hayakawa

AC Alps Electric Co.: 16 patents #64 of 2,177Top 3%
Tdk: 6 patents #953 of 3,796Top 30%
HC Hitachi Construction Machinery Co.: 4 patents #303 of 1,234Top 25%
📍 Ibaraki, JP: #242 of 6,779 inventorsTop 4%
Overall (All Time): #147,398 of 4,157,543Top 4%
27
Patents All Time

Issued Patents All Time

Showing 1–25 of 27 patents

Patent #TitleCo-InventorsDate
D683634 Photo detector Satoshi Waga, Hideki Kamimura, Masaya Yamatani, Motoki Hirayama 2013-06-04
8072712 Tunneling magnetic sensing element having two-layered hard bias layer Masahlko Ishizone 2011-12-06
7800867 CPP GMR head with antiferromagnetic layer disposed at rear of ferrimagnetic pinned layer Masamichi Saito, Yoshihiro Nishiyama, Yosuke Ide, Eiji Umetsu, Naoya Hasegawa 2010-09-21
7656620 Magnetic head device provided with lead electrode electrically connected to magnetic shield layer Yoshihiro Nishiyama, Daigo Aoki 2010-02-02
7623324 Magnetic sensing element having reactive-ion-etching stop layer and process for producing same Kenji Honda, Naohiro Ishibashi, Daigo Aoki, Yoshihiro Nishiyama, Toshihiro Kobayashi 2009-11-24
7599155 Self-pinned CPP giant magnetoresistive head with antiferromagnetic film absent from current path Masamichi Saito, Yoshihiro Nishiyama, Yosuke Ide, Eiji Umetsu, Naoya Hasegawa 2009-10-06
7365949 CPP giant magnetoresistive head including pinned magnetic layer that extends in the height direction Yoshihiro Nishiyama, Digo Aoki, Masamichi Saito, Naohiro Ishibashi, Kenji Honda 2008-04-29
7220499 CPP giant magnetoresistive head having antiferromagnetic film disposed in rear of element Masamichi Saito, Yoshihiro Nishiyama, Yosuke Ide, Eiji Umetsu, Naoya Hasegawa 2007-05-22
6885526 Thin film magnetic head comprising SiON film Yoshihiro Nishiyama 2005-04-26
6707649 Magnetic sensing element permitting decrease in effective element size while maintaining large optical element size Naoya Hasegawa 2004-03-16
6704172 Thin film magnetic head using Al-Si-O insulating material and method of manufacturing the same Yoshihiro Nishiyama 2004-03-09
6654212 Magnetic sensor capable of providing stable resistance change rate 2003-11-25
6534746 Narrow gap welding method and welding apparatus Toru Takatani, Yutaka Takano, Hikaru Yamamoto 2003-03-18
6459551 Thin film magnetic head 2002-10-01
6394212 Rotary type construction machine and cab, equipment housing cover and counterweight for such construction machine Yutaka Takano, Hideo Hokari, Kazutaka Tateishi 2002-05-28
6351204 Thin magnetic element and transformer Kiyohito Yamasawa, Takashi Hatanai, Akihiro Makino, Yutaka Naito, Naoya Hasegawa 2002-02-26
6307720 Thin film magnetic head 2001-10-23
6252749 Thin film magnetic head having a gap layer with improved thermal conductivity 2001-06-26
6140902 Thin magnetic element and transformer Kiyohito Yamasawa, Takashi Hatanai, Akihiro Makino, Yutaka Naito, Naoya Hasegawa 2000-10-31
6083325 Method for making Fe-based soft magnetic alloy Teruo Bitoh, Takashi Hatanai, Akihiro Makino, Akihisa Inoue, Tsuyoshi Masumoto 2000-07-04
5896078 Soft magnetic alloy thin film and plane-type magnetic device Akihiro Makino 1999-04-20
5833770 High frequency soft magnetic alloy and plane magnetic element, antenna and wave absorber comprising the same Kumiko Ominato, Naoya Hasegawa, Akihiro Makino 1998-11-10
5725685 Soft magnetic alloy thin film with nitrogen-based amorphous phase Akihiro Makino 1998-03-10
5656101 Soft magnetic alloy thin film with nitrogen-based amorphous phase Akihiro Makino 1997-08-12
5211059 Acoustic microscope system Sakae Takeda, Tosio Nonaka, Katsumi Miyaki, Hiroshi Yamamoto, Kazuo Fujishima 1993-05-18