Patents by Inventor Hiroshi Kano

Hiroshi Kano has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7142474
    Abstract: A magnetic memory device includes magnetoresistance-effect storage elements arranged so as to store information by using a change in a magnetization direction of a storage area of each of the storage elements, and a control unit. The control unit controls a polarity of a first wiring current for generating a recording auxiliary magnetic field in a direction of a hard magnetization axis of the storage area, and a polarity of a second wiring current for generating a recording magnetic field in a direction of an easy magnetization axis of the storage area. Each of the first and second wiring currents has a first polarity when generating a “1” and a second polarity, different from the first polarity, when generating a “0”.
    Type: Grant
    Filed: September 18, 2002
    Date of Patent: November 28, 2006
    Assignee: Sony Corporation
    Inventors: Kazuhiro Bessho, Hiroshi Kano
  • Publication number: 20060187703
    Abstract: A magnetoresistive effect element (1) has an arrangement in which a pair of ferromagnetic material layers (magnetization fixed layer (5) and magnetization free layer (7)) is opposed to each other through an intermediate layer (6) to obtain a magnetoresistive change by causing a current to flow in the direction perpendicular to the layer surface and in which the ferromagnetic material layers are annealed by anneal including rotating field anneal and the following static field anneal. A magnetic memory device comprises this magnetoresistive effect element (1) and bit lines and word lines sandwiching the magnetoresistive effect element (1) in the thickness direction. When the magnetoresistive effect element (1) and the magnetic memory device are manufactured, the ferromagnetic material layers (5, 7) are annealed by rotating field anneal and the following static field anneal.
    Type: Application
    Filed: December 14, 2005
    Publication date: August 24, 2006
    Inventors: Tetsuya Mizuguchi, Masanori Hosomi, Kazuhiro Ohba, Kazuhiro Bessho, Yutaka Higo, Tetsuya Yamamoto, Takeyuki Sone, Hiroshi Kano
  • Publication number: 20060114618
    Abstract: A storage element 3 has an arrangement in which magnetization fixed layers 31 and 32 are provided above and below a storage layer 17 for storing information based on the magnetization state of a magnetic material through intermediate layers 16 and 18, directions of magnetizations M15 and M19 of ferromagnetic layers 15 and 19 closest to the storage layer 17 of the magnetization fixed layers 31 and 32 above and below the storage layer 17 are opposite to each other, the two intermediate layers 16 and 18 above and below the storage layer 17 have a significant difference between sheet resistivity values thereof and in which the direction of a magnetization M1 of the storage layer 17 is changed with application of an electric current to the lamination layer direction to record information on the storage layer 17.
    Type: Application
    Filed: September 26, 2005
    Publication date: June 1, 2006
    Applicant: Sony Corporation
    Inventors: Masanori Hosomi, Kazuhiro Ohba, Hiroshi Kano
  • Publication number: 20060093233
    Abstract: A ringing reduction apparatus includes image restoration means for restoring an input image with image degradation to the image with less degradation using an image restoration filter; and weighted average means for performing weighted average of the input image and the restoration image obtained by the image restoration means. In the ringing reduction apparatus, the weighted average means performs the weighted average of the input image and the restoration image such that a degree of the input image is strengthened in a portion where ringing is conspicuous in the restoration image, and the weighted average means performs the weighted average of the input image and the restoration image such that a degree of the restoration image is strengthened in a portion where ringing is inconspicuous in the restoration image.
    Type: Application
    Filed: October 26, 2005
    Publication date: May 4, 2006
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Hiroshi Kano, Ryuuichirou Tominaga
  • Patent number: 7034348
    Abstract: A magnetoresistive effect element may be given satisfactory magnetic characteristics because a deterioration of a magnetoresistive changing rate by annealing can be suppressed and a magnetic memory device includes this magnetoresistive effect element to provide excellent write characteristics. A magnetoresistive effect element has a pair of ferromagnetic layers (magnetization fixed layer 5 and magnetization free layer 7) opposed to each other through an intermediate layer 6 to cause an electric current to flow in the direction perpendicular to the layer surface to obtain a magnetoresistive change. A magnetic memory device comprises the magnetoresistive effect element 1 in which at least one of the pair of ferromagnetic layers 5, 7 contains an amorphous ferromagnetic material whose crystallization temperature is higher than 623 K and bit lines and word lines sandwiching this magnetoresistive effect element and the magnetoresistive effect element in the thickness direction.
    Type: Grant
    Filed: August 1, 2003
    Date of Patent: April 25, 2006
    Assignee: Sony Corporation
    Inventors: Kazuhiro Ohba, Hiroshi Kano, Masanori Hosomi, Kazuhiro Bessho, Tetsuya Yamamoto, Tetsuya Mizuguchi
  • Patent number: 7026671
    Abstract: A magnetoresistive effect element (1) has an arrangement in which a pair of ferromagnetic material layers (magnetization fixed layer (5) and magnetization free layer (7)) is opposed to each other through an intermediate layer (6) to obtain a magnetoresistive change by causing a current to flow in the direction perpendicular to the layer surface and in which the ferromagnetic material layers are annealed by anneal including rotating field anneal and the following static field anneal. A magnetic memory device comprises this magnetoresistive effect element (1) and bit lines and word lines sandwiching the magnetoresistive effect element (1) in the thickness direction. When the magnetoresistive effect element (1) and the magnetic memory device are manufactured, the ferromagnetic material layers (5, 7) are annealed by rotating field anneal and the following static field anneal.
    Type: Grant
    Filed: June 9, 2003
    Date of Patent: April 11, 2006
    Assignee: Sony Corporation
    Inventors: Tetsuya Mizuguchi, Masanori Hosomi, Kazuhiro Ohba, Kazuhiro Bessho, Yutaka Higo, Tetsuya Yamamoto, Takeyuki Sone, Hiroshi Kano
  • Patent number: 6999288
    Abstract: There are provided a magnetoresistive effect element having a satisfactory magnetic characteristic and a magnetic memory device including this magnetoresistive effect element to produce excellent write/read characteristics. A magnetoresistive effect element 1 has a pair of ferromagnetic layers (magnetization fixed layer 5 and magnetization free layer 7) opposed to each other through an intermediate layer 6 to produce a magnetoresistive change by a current flowing to the direction perpendicular to the film plane, the magnetization free layer having a normalized resistance ranging from 2000 ?nm2 to 10000 ?nm2 where a product of a specific resistance obtained when a current flows to the film thickness direction of the magnetization free layer 7 and a film thickness is defined as the normalized resistance. A magnetic memory device includes this magnetoresistive effect element 1 and bit lines and word lines sandwiching the magnetoresistive effect element 1.
    Type: Grant
    Filed: March 24, 2005
    Date of Patent: February 14, 2006
    Assignee: Sony Corporation
    Inventors: Takeyuki Sone, Kazuhiro Bessho, Masanori Hosomi, Tetsuya Mizuguchi, Kazuhiro Ohba, Tetsuya Yamamoto, Yutaka Higo, Hiroshi Kano
  • Patent number: 6992868
    Abstract: There are provided a magnetoresistive effect element having a satisfactory magnetic characteristic and a magnetic memory device including this magnetoresistive effect element to produce excellent write/read characteristics. A magnetoresistive effect element 1 has a pair of ferromagnetic layers (magnetization fixed layer 5 and magnetization free layer 7) opposed to each other through an intermediate layer 6 to produce a magnetoresistive change by a current flowing to the direction perpendicular to the film plane, the magnetization free layer having a normalized resistance ranging from 2000 ?nm2 to 10000 ?nm2 where a product of a specific resistance obtained when a current flows to the film thickness direction of the magnetization free layer 7 and a film thickness is defined as the normalized resistance. A magnetic memory device includes this magnetoresistive effect element 1 and bit-lines and word lines sandwiching the magnetoresistive effect element 1.
    Type: Grant
    Filed: March 24, 2005
    Date of Patent: January 31, 2006
    Assignee: Sony Corporation
    Inventors: Takeyuki Sone, Kazuhiro Bessho, Masanori Hosomi, Tetsuya Mizuguchi, Kazuhiro Ohba, Tetsuya Yamamoto, Yutaka Higo, Hiroshi Kano
  • Patent number: 6990014
    Abstract: In a magnetoresistive element which includes at least a pair of ferromagnetic layers stacked with having an intermediate layer inbetween and achieves a change in the magnetic resistance by permitting a current to flow in the direction which crosses the plane of the stacked layers, by virtue of having a construction wherein at least one ferromagnetic layer constituting an information recording layer has an amorphous structure containing a CoFeB or CoFeNiB alloy and has a plane form having a longer axis in one direction wherein both sides thereof along the longer axis direction form a straight line or a curved outward, and the both ends thereof in the longer axis direction form a curved or bent outward from, wherein the pattern form has an aspect ratio of 1:1.2 to 1:3.5, excellent asteroid curve having consistency in the properties can be stably obtained.
    Type: Grant
    Filed: March 11, 2005
    Date of Patent: January 24, 2006
    Assignee: Sony Corporation
    Inventors: Masanori Hosomi, Kazuhiro Bessho, Kazuhiro Ohba, Tetsuya Mizuguchi, Yutaka Higo, Takeyuki Sone, Tetsuya Yamamoto, Hiroshi Kano
  • Publication number: 20050237788
    Abstract: A magnetic memory includes magnetic memory elements 3 and 5 having memory layers capable of storing information by the magnetized state of a magnetic material, in which a plurality of magnetic memory elements 3 and 5 is electrically connected in series or in parallel to each other near an intersection point between two kinds of interconnections 1 and 6 which cross each other and between the two kinds of the interconnections 1 and 6, threshold values of recording electric currents by which information can be recorded on a plurality of magnetic memory elements 3 and 5 are made different from each other and the memory layers of the respective magnetic memory elements 3 and 5 comprise different information storage units. Thus, the magnetic memory becomes able to record much more information per unit area.
    Type: Application
    Filed: April 7, 2005
    Publication date: October 27, 2005
    Inventors: Hiroshi Kano, Hiroyuki Ohmori
  • Patent number: 6947103
    Abstract: A reflection type liquid crystal display device having excellent display capability even if the number of the photolithography process is reduced and a process for producing the device. A process includes the steps of (a) forming a source/drain wiring by using a first mask; (b) forming a thin film transistor region and gate wiring by using a second mask; (c) forming an opening for a transistor, in a passivation film by using a third mask; (d) forming a rough surface of the interlayer insulating film and to form an opening for the transistor by using a fourth mask by halftone exposure, and (e) forming a reflective metal which extend through the respective openings for the transistor in the passivation film and the interlayer insulating film so that it is electrically connected to the source wiring by using a fifth mask.
    Type: Grant
    Filed: November 30, 2001
    Date of Patent: September 20, 2005
    Assignee: NEC LCD Technologies, Ltd.
    Inventors: Hiroshi Sakurai, Hidenori Ikeno, Yuichi Yamaguchi, Hiroshi Kano
  • Publication number: 20050162904
    Abstract: There are provided a magnetoresistive effect element having a satisfactory magnetic characteristic and a magnetic memory device including this magnetoresistive effect element to produce excellent write/read characteristics. A magnetoresistive effect element 1 has a pair of ferromagnetic layers (magnetization fixed layer 5 and magnetization free layer 7) opposed to each other through an intermediate layer 6 to produce a magnetoresistive change by a current flowing to the direction perpendicular to the film plane, the magnetization free layer having a normalized resistance ranging from 2000 ?nm2 to 10000 ?nm2 where a product of a specific resistance obtained when a current flows to the film thickness direction of the magnetization free layer 7 and a film thickness is defined as the normalized resistance. A magnetic memory device includes this magnetoresistive effect element 1 and bit-lines and word lines sandwiching the magnetoresistive effect element 1.
    Type: Application
    Filed: March 24, 2005
    Publication date: July 28, 2005
    Inventors: Takeyuki Sone, Kazuhiro Bessho, Masanori Hosomi, Tetsuya Mizuguchi, Kazuhiro Ohba, Tetsuya Yamamoto, Yutaka Higo, Hiroshi Kano
  • Publication number: 20050162905
    Abstract: There are provided a magnetoresistive effect element having a satisfactory magnetic characteristic and a magnetic memory device including this magnetoresistive effect element to produce excellent write/read characteristics. A magnetoresistive effect element 1 has a pair of ferromagnetic layers (magnetization fixed layer 5 and magnetization free layer 7) opposed to each other through an intermediate layer 6 to produce a magnetoresistive change by a current flowing to the direction perpendicular to the film plane, the magnetization free layer having a normalized resistance ranging from 2000 ?nm2 to 10000 ?nm2 where a product of a specific resistance obtained when a current flows to the film thickness direction of the magnetization free layer 7 and a film thickness is defined as the normalized resistance. A magnetic memory device includes this magnetoresistive effect element 1 and bit lines and word lines sandwiching the magnetoresistive effect element 1.
    Type: Application
    Filed: March 24, 2005
    Publication date: July 28, 2005
    Inventors: Takeyuki Sone, Kazuhiro Bessho, Masanori Hosomi, Tetsuya Mizuguchi, Kazuhiro Ohba, Tetsuya Yamamoto, Yutaka Higo, Hiroshi Kano
  • Publication number: 20050157545
    Abstract: In a magnetoresistive element which includes at least a pair of ferromagnetic layers stacked with having an intermediate layer inbetween and achieves a change in the magnetic resistance by permitting a current to flow in the direction which crosses the plane of the stacked layers, by virtue of having a construction wherein at least one ferromagnetic layer constituting an information recording layer has an amorphous structure containing a CoFeB or CoFeNiB alloy and has a plane form having a longer axis in one direction wherein both sides thereof along the longer axis direction form a straight line or a curved outward, and the both ends thereof in the longer axis direction form a curved or bent outward from, wherein the pattern form has an aspect ratio of 1:1.2 to 1:3.5, excellent asteroid curve having consistency in the properties can be stably obtained.
    Type: Application
    Filed: March 11, 2005
    Publication date: July 21, 2005
    Inventors: Masanori Hosomi, Kazuhiro Bessho, Kazuhiro Ohba, Tetsuo Mizuguchi, Yutaka Higo, Takeyuki Sone, Tetsuya Yamamoto, Hiroshi Kano
  • Publication number: 20050157542
    Abstract: In a magnetoresistive element which includes at least a pair of ferromagnetic layers stacked with having an intermediate layer inbetween and achieves a change in the magnetic resistance by permitting a current to flow in the direction which crosses the plane of the stacked layers, by virtue of having a construction wherein at least one ferromagnetic layer constituting an information recording layer has an amorphous structure containing a CoFeB or CoFeNiB alloy and has a plane form having a longer axis in one direction wherein both sides thereof along the longer axis direction form a straight line or a curved outward, and the both ends thereof in the longer axis direction form a curved or bent outward from, wherein the pattern form has an aspect ratio of 1:1.2 to 1:3.5, excellent asteroid curve having consistency in the properties can be stably obtained.
    Type: Application
    Filed: March 11, 2005
    Publication date: July 21, 2005
    Inventors: Masanori Hosomi, Kazuhiro Bessho, Kazuhiro Ohba, Tetsuya Mizuguchi, Yutaka Higo, Takeyuki Sone, Tetsuya Yamamoto, Hiroshi Kano
  • Publication number: 20050151892
    Abstract: A reflection type liquid crystal display device having excellent display capability even if the number of the photolithography process is reduced and a process for producing the device. A process includes the steps of (a) forming a source/drain wiring by using a first mask; (b) forming a thin film transistor region and gate wiring by using a second mask; (c) forming an opening for a transistor, in a passivation film by using a third mask; (d) forming a rough surface of the interlayer insulating film and to form an opening for the transistor by using a fourth mask by halftone exposure, and (e) forming a reflective metal which extend through the respective openings for the transistor in the passivation film and the interlayer insulating film so that it is electrically connected to the source wiring by using a fifth mask.
    Type: Application
    Filed: January 6, 2005
    Publication date: July 14, 2005
    Applicant: NEC LCD TECHNOLOGIES, LTD
    Inventors: Hiroshi Sakurai, Hidenori Ikeno, Yuichi Yamaguchi, Hiroshi Kano
  • Patent number: 6909513
    Abstract: There are provided a measuring head moved along a guide rail, first position detection means for detecting the positions of the measuring head on the guide rail using a predetermined position on the guide rail as a reference position, second position detection means for detecting the position in a world coordinate system of the measuring head on the guide rail, and means for storing in a storage device each of the positions of the measuring head on the guide rail using the predetermined position on the guide rail as the reference position and a corresponding position in the world coordinate system with the positions correlated with each other.
    Type: Grant
    Filed: May 24, 2000
    Date of Patent: June 21, 2005
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Hideto Fujita, Hiroaki Yoshida, Hiroshi Kano, Shimpei Fukumoto
  • Patent number: 6879514
    Abstract: In a magnetoresistive element which includes at least a pair of ferromagnetic layers stacked with having an intermediate layer inbetween and achieves a change in the magnetic resistance by permitting a current to flow in the direction which crosses the plane of the stacked layers, by virtue of having a construction wherein at least one ferromagnetic layer constituting an information recording layer has an amorphous structure containing a CoFeB or CoFeNiB alloy and has a plane form having a longer axis in one direction wherein both sides thereof along the longer axis direction form a straight line or a curved outward, and the both ends thereof in the longer axis direction form a curved or bent outward from, wherein the pattern form has an aspect ratio of 1:1.2 to 1:3.5, excellent asteroid curve having consistency in the properties can be stably obtained.
    Type: Grant
    Filed: September 26, 2003
    Date of Patent: April 12, 2005
    Assignee: Sony Corporation
    Inventors: Masanori Hosomi, Kazuhiro Bessho, Kazuhiro Ohba, Tetsuo Mizuguchi, Yutaka Higo, Takeyuki Sone, Tetsuya Yamamoto, Hiroshi Kano
  • Patent number: 6879473
    Abstract: There are provided a magnetoresistive effect element having a satisfactory magnetic characteristic and a magnetic memory device including this magnetoresistive effect element to produce excellent write/read characteristics. A magnetoresistive effect element 1 has a pair of ferromagnetic layers (magnetization fixed layer 5 and magnetization free layer 7) opposed to each other through an intermediate layer 6 to produce a magnetoresistive change by a current flowing to the direction perpendicular to the film plane, the magnetization free layer having a normalized resistance ranging from 2000 ?nm2 to 10000 ?nm2 where a product of a specific resistance obtained when a current flows to the film thickness direction of the magnetization free layer 7 and a film thickness is defined as the normalized resistance. A magnetic memory device includes this magnetoresistive effect element 1 and bit lines and word lines sandwiching the magnetoresistive effect element 1.
    Type: Grant
    Filed: June 12, 2003
    Date of Patent: April 12, 2005
    Assignee: Sony Corporation
    Inventors: Takeyuki Sone, Kazuhiro Bessho, Masanori Hosomi, Tetsuya Mizuguchi, Kazuhiro Ohba, Tetsuya Yamamoto, Yutaka Higo, Hiroshi Kano
  • Publication number: 20040262654
    Abstract: A magnetoresistive effect element may be given satisfactory magnetic characteristics because a deterioration of a magnetoresistive changing rate by annealing can be suppressed and a magnetic memory device includes this magnetoresistive effect element to provide excellent write characteristics.
    Type: Application
    Filed: March 31, 2004
    Publication date: December 30, 2004
    Inventors: Kazuhiro Ohba, Hiroshi Kano, Masanori Hosomi, Kazuhiro Bessho, Tetsuya Yamamoto, Tetsuya Mizuguchi