Patents by Inventor Makoto Nagao

Makoto Nagao 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: 9239028
    Abstract: A bearing holding portion supporting a crankshaft in a manner to rotate freely via a bearing and fittingly holding the bearing is formed in a crankcase. A second cross section passing through a crankshaft axis line and along an orthogonal direction to a cylinder axis line is set to have a larger cross-sectional area than a first cross section passing through the crankshaft axis line and along a direction of the cylinder axis line in the bearing holding portion.
    Type: Grant
    Filed: November 28, 2012
    Date of Patent: January 19, 2016
    Assignee: SUZUKI MOTOR CORPORATION
    Inventors: Koji Mori, Shuichi Imanari, Kohei Kato, Makoto Nagao
  • Patent number: 8576764
    Abstract: A communication apparatus includes an input unit that inputs names of repeater stations to which the local communication apparatus and a communication counterpart belong respectively, a memory storing identification information of each repeater station, and information needed to set a communication path from the repeater station to another repeater station as communication path setting information associated with the name of the repeater station, an information retrieving section that retrieves identification information of the repeater station, and information needed to set a communication path to another repeater station from the associated information stored in the memory based on the input name of the repeater station, and a communication frame generating section that generates a communication frame including the identification information of the repeater station, and the information needed to set the communication path from the repeater station to which the local communication apparatus belongs to the re
    Type: Grant
    Filed: February 18, 2010
    Date of Patent: November 5, 2013
    Assignee: Icom Incorporated
    Inventors: Makoto Nagao, Nami Takaoka, Yasutoyo Shimao, Masaaki Kitagawa, Shinichirou Adachi
  • Patent number: 7982984
    Abstract: The present invention provides a magnetic transfer master carrier which forms a magnetic pattern corresponding to a pattern of information to be recorded on a perpendicular magnetic recording medium when a magnetic field is applied to the perpendicular magnetic recording medium, with the magnetic master carrier and the perpendicular magnetic recording medium closely attached to each other, the carrier including: a base material having convex portions on its surface, the convex portions being provided corresponding to the pattern of information; a magnetic layer deposited on at least top surfaces of the convex portions, and having perpendicular magnetic anisotropy; and a soft magnetic layer deposited on the surface of the magnetic layer.
    Type: Grant
    Filed: April 7, 2009
    Date of Patent: July 19, 2011
    Assignee: Fujifilm Corporation
    Inventors: Yoichi Nishida, Hideyuki Kubota, Masakazu Nishikawa, Makoto Nagao, Ryuji Sugita, Takashi Komine
  • Patent number: 7974028
    Abstract: A magnetic transfer master carrier of the present invention includes a base material having convex portions on its surface, the convex portions being provided corresponding to a pattern of information to be recorded on a perpendicular magnetic recording medium, and a magnetic layer deposited at least on top surfaces of the convex portions, wherein when a magnetic field is applied to the magnetic transfer master carrier, the magnetic layer absorbs a magnetic flux so as to form a pattern of the magnetic field, wherein the magnetic layer includes at least two perpendicular magnetic anisotropic layers, and an antiferromagnetic coupling induction layer which is provided so as to be sandwiched in between two neighboring layers of all the perpendicular magnetic anisotropic layers, and to induce antiferromagnetic coupling therebetween.
    Type: Grant
    Filed: March 26, 2009
    Date of Patent: July 5, 2011
    Assignee: Fujifilm Corporation
    Inventors: Yoichi Nishida, Hideyuki Kubota, Makoto Nagao, Ryuji Sugita, Takashi Komine
  • Patent number: 7965535
    Abstract: An electrode master for ferroelectric recording records information on a ferroelectric recording medium in which the direction of polarization of a ferroelectric material has been unified in one direction by applying a voltage thereto, based on the direction of polarization of the ferroelectric material, by applying voltage pulses to the ferroelectric recording medium. The electrode master includes an electroconductive base material; a plurality of electrode convexes provided on a surface of the electroconductive base material so as to correspond to information to be recorded on the ferroelectric recording medium; and an electrode terminal conducted to each of the electrode convexes and provided on the electroconductive base material.
    Type: Grant
    Filed: March 27, 2009
    Date of Patent: June 21, 2011
    Assignee: Fujifilm Corporation
    Inventor: Makoto Nagao
  • Publication number: 20100208647
    Abstract: A communication apparatus includes an input unit that inputs names of repeater stations to which the local communication apparatus and a communication counterpart belong respectively, a memory storing identification information of each repeater station, and information needed to set a communication path from the repeater station to another repeater station as communication path setting information associated with the name of the repeater station, an information retrieving section that retrieves identification information of the repeater station, and information needed to set a communication path to another repeater station from the associated information stored in the memory based on the input name of the repeater station, and a communication frame generating section that generates a communication frame including the identification information of the repeater station, and the information needed to set the communication path from the repeater station to which the local communication apparatus belongs to the re
    Type: Application
    Filed: February 18, 2010
    Publication date: August 19, 2010
    Applicant: ICOM INCORPORATED
    Inventors: Makoto Nagao, Nami Takaoka, Yasutoyo Shimao, Masaaki Kitagawa, Shinichirou Adachi
  • Publication number: 20100079892
    Abstract: To provide a method for producing a magnetic transfer master carrier, including: plating a patterned silicon substrate with nickel so as to form a base material on the silicon substrate; separating the base material from the silicon substrate; and etching a surface of the base material so as to obtain an oriented base material, wherein the magnetic transfer master carrier includes the oriented base material, a thin underlying layer formed on the oriented base material, and a magnetic layer formed on the thin underlying layer.
    Type: Application
    Filed: September 29, 2009
    Publication date: April 1, 2010
    Applicant: FUJIFILM CORPORATION
    Inventors: HIDEYUKI KUBOTA, MAKOTO NAGAO, RYUJI SUGITA, TAKASHI KOMINE
  • Patent number: 7667908
    Abstract: The present invention provides a magnetic transfer method comprising: a magnetic transfer step of applying a magnetic field for transfer parallel to the plane of a disk shaped substrate having formed on the surface thereof a pattern composed of magnetic layer arrangement corresponding to information to be transferred to a perpendicular magnetic recording medium while a master recording medium for perpendicular magnetic transfer being the substrate is brought into close contact with the perpendicular magnetic recording medium, and thereby transferring the magnetic pattern of the master recording medium for perpendicular magnetic transfer to the perpendicular magnetic recording medium; and a servo correction information writing step of writing by use of a magnetic head, servo correction signal information into a section adjacent to the information transferred to the perpendicular magnetic recording medium by the magnetic transfer step.
    Type: Grant
    Filed: June 18, 2007
    Date of Patent: February 23, 2010
    Assignee: FUJIFILM Corporation
    Inventors: Makoto Nagao, Toshihide Ishioka
  • Patent number: 7663827
    Abstract: The present invention provides a method of initializing a perpendicular magnetic recording medium in which a magnetic field having a magnetic field strength Hex is applied to a perpendicular magnetic recording medium having a magnetic layer having a coercive force Hc to initialize the magnetic layer, the method comprising the steps of: controlling a magnetic field strength HexP in a direction parallel to the medium surface of the magnetic field so that HexP>1.3×Hc; and controlling a magnetic field strength HexV in a direction perpendicular to the medium surface of the magnetic field so that HexV<Hc.
    Type: Grant
    Filed: January 30, 2007
    Date of Patent: February 16, 2010
    Assignee: FUJIFILM Corporation
    Inventors: Satoshi Wakamatsu, Makoto Nagao, Toshihide Ishioka, Atsushi Morooka
  • Publication number: 20090303627
    Abstract: A magnetic transfer master carrier including a base material having, in its surface, convex portions arranged correspondingly to a pattern of information to be recorded on a perpendicular magnetic recording medium, and a magnetic layer having perpendicular magnetic anisotropy, the layer being provided on top and side surfaces of the convex portions, wherein the magnetic transfer master carrier forms a magnetic field pattern corresponding to the pattern of the information when a magnetic field is applied thereto.
    Type: Application
    Filed: June 3, 2009
    Publication date: December 10, 2009
    Applicant: FUJIFILM Corporation
    Inventors: Yoichi NISHIDA, Hideyuki Kubota, Masakazu Nishikawa, Makoto Nagao, Ryuji Sugita, Takashi Komine
  • Publication number: 20090251814
    Abstract: The present invention provides a magnetic transfer master carrier which forms a magnetic pattern corresponding to a pattern of information to be recorded on a perpendicular magnetic recording medium when a magnetic field is applied to the perpendicular magnetic recording medium, with the magnetic master carrier and the perpendicular magnetic recording medium closely attached to each other, the carrier including: a base material having convex portions on its surface, the convex portions being provided corresponding to the pattern of information; a magnetic layer deposited on at least top surfaces of the convex portions, and having perpendicular magnetic anisotropy; and a soft magnetic layer deposited on the surface of the magnetic layer.
    Type: Application
    Filed: April 7, 2009
    Publication date: October 8, 2009
    Inventors: Yoichi Nishida, Hideyuki Kubota, Masakazu Nishikawa, Makoto Nagao, Ryuji Sugita, Takashi Komine
  • Publication number: 20090244776
    Abstract: To provide a magnetic transfer master carrier including a base material, a concavo-convex pattern formed by arranging a plurality of convex portions on a surface of the base material, and a magnetic layer provided at least on upper surfaces of the convex portions, wherein the magnetic layer is formed by an ion gun deposition method in which a target material is irradiated with an ion beam and a layer is deposited with sputter particles sputtered from the target material.
    Type: Application
    Filed: March 30, 2009
    Publication date: October 1, 2009
    Applicant: FUJIFILM CORPORATION
    Inventors: Hideyuki KUBOTA, Makoto Nagao
  • Publication number: 20090244952
    Abstract: The present invention provides an electrode master for ferroelectric recording that records information on a ferroelectric recording medium in which the direction of polarization of a ferroelectric material has been unified in one direction by applying a voltage thereto, based on the direction of polarization of the ferroelectric material by applying voltage pulses to the ferroelectric recording medium, the electrode master including: an electroconductive base material; a plurality of electrode convexes provided on a surface of the electroconductive base material so as to correspond to information to be recorded on the ferroelectric recording medium; and an electrode terminal conducted to each of the electrode convexes and provided on the electroconductive base material.
    Type: Application
    Filed: March 27, 2009
    Publication date: October 1, 2009
    Applicant: FUJIFILM CORPORATION
    Inventor: Makoto Nagao
  • Publication number: 20090244747
    Abstract: To provide a magnetic transfer master carrier obtained by forming a perpendicular magnetic anisotropy magnetic layer over a surface of an original master which has a concavo-convex pattern, placing a base material against the formed perpendicular magnetic anisotropy magnetic layer, and separating the base material.
    Type: Application
    Filed: March 25, 2009
    Publication date: October 1, 2009
    Applicant: FUJIFILM CORPORATION
    Inventors: Masakazu Nishikawa, Hideyuki Kubota, Makoto Nagao, Ryuji Sugita, Takashi Komine
  • Publication number: 20090244748
    Abstract: A magnetic transfer master carrier of the present invention includes a base material having convex portions on its surface, the convex portions being provided corresponding to a pattern of information to be recorded on a perpendicular magnetic recording medium, and a magnetic layer deposited at least on top surfaces of the convex portions, wherein when a magnetic field is applied to the magnetic transfer master carrier, the magnetic layer absorbs a magnetic flux so as to form a pattern of the magnetic field, wherein the magnetic layer includes at least two perpendicular magnetic anisotropic layers, and an antiferromagnetic coupling induction layer which is provided so as to be sandwiched in between two neighboring layers of all the perpendicular magnetic anisotropic layers, and to induce antiferromagnetic coupling therebetween.
    Type: Application
    Filed: March 26, 2009
    Publication date: October 1, 2009
    Applicant: FUJIFILM CORPORATION
    Inventors: Yoichi Nishida, Hideyuki Kubota, Makoto Nagao, Ryuji Sugita, Takashi Komine
  • Patent number: 7593175
    Abstract: A magnetic transfer method comprises the processes of: adhering a side having a perpendicular magnetic recording layer of a perpendicular magnetic recording medium in which a perpendicular magnetic recording layer is formed on a surface of a disk shaped substrate, to a surface of a master recording medium in which a magnetic layer is formed corresponding to information to be recorded for transferring information to the perpendicular magnetic recording medium and of the side having the magnetic layer formed; and performing magnetic transfer by relatively rotating a magnetic field application device about the center of the perpendicular magnetic recording medium as an axis with respect to the perpendicular magnetic recording medium and the master recording medium, while applying a magnetic field to the perpendicular magnetic recording medium and the master recording medium by the magnetic field application device, wherein the magnetic field application device is rotated two or more times.
    Type: Grant
    Filed: June 11, 2007
    Date of Patent: September 22, 2009
    Assignee: FUJIFILM Corporation
    Inventors: Makoto Nagao, Naoto Fujiwara
  • Patent number: 7532420
    Abstract: The present invention provides a master disk for magnetic transfer which has a disk-like outer shape and in the surface of which a large number of fine magnetic layer patterns are formed, wherein the relationship between the outside diameter size d (mm) of the extreme outer circumference of the magnetic layer pattern and the master disk thickness t (mm) is given by 2.04×10?3×d+0.006?t?8.15×10?3×d+0.024, in order to exclude the effects of bows, strains and thickness deviations of a master disk in performing magnetic transfer and ensure that accurate transfer of magnetization patterns can be performed.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: May 12, 2009
    Assignee: FUJIFILM Corporation
    Inventors: Makoto Nagao, Minoru Araki, Satoshi Wakamatsu, Kenji Ichikawa
  • Patent number: 7522362
    Abstract: An amplitude servo pattern capable of providing accurate servo control through reproduced amplitude with reduced noise is provided. The amplitude servo pattern has servo burst signals composed of burst bit strings adjacently disposed in a track width direction. The burst bit strings are disposed such that the servo burst signals adjacently disposed in the track width direction have a phase difference with each other in a track direction.
    Type: Grant
    Filed: July 21, 2005
    Date of Patent: April 21, 2009
    Assignee: FUJIFILM Corporation
    Inventors: Takashi Komine, Ryuji Sugita, Tadashi Yasunaga, Makoto Nagao
  • Publication number: 20090073593
    Abstract: A master carrier for magnetic transfer includes a transfer portion on which a magnetic layer corresponding to magnetic information for transfer is formed, and a non-transfer portion forming a concave shape relatively low with respect to the transfer portion having the magnetic layer, wherein the magnetic layer of the transfer portion has perpendicular magnetic anisotropy, with residual magnetization Mr of 500 emu/cc or less, and saturation magnetization Ms of 900 emu/cc or more. CoPt can be used as a material of the magnetic layer, and use of Co4Pt1 (at %) is especially preferable. Thereby, a master carrier for magnetic transfer which can generate a high magnetic field capable of transfer of a short bit to a high density medium is provided.
    Type: Application
    Filed: September 10, 2008
    Publication date: March 19, 2009
    Applicant: FUJIFILM Corporation
    Inventors: Naoto FUJIWARA, Makoto Nagao, Ryuji Sugita
  • Patent number: 7440207
    Abstract: Provided is a method of magnetic transfer. The method includes initially DC-magnetizing a transfer-recipient disc in a circumferential direction, by applying a magnetic field to the transfer-recipient disc in the circumferential direction thereof bringing initially DC-magnetized transfer-recipient disc and a master disc into close contact with each other, on the top side of the master disc a magnetic layer including a great number of protrusions that configure a magnetic pattern being formed; and executing magnetic transfer in such a way that a magnetic-field generation device is provided, and that, when a magnetic field is applied in a circumferential direction to the transfer-recipient disc and the master disc, transfer of the magnetic pattern of the master disc onto the transfer-recipient disc occurs.
    Type: Grant
    Filed: October 13, 2005
    Date of Patent: October 21, 2008
    Assignee: FUJIFILM Corporation
    Inventors: Makoto Nagao, Satoshi Wakamatsu, Minoru Araki, Kazunori Komatsu