Patents by Inventor Makoto Miyamoto

Makoto Miyamoto 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).

  • Damper device
    Patent number: 7428952
    Abstract: A damper device used in a range of electronic apparatuses. The damper device allows a diverse opening and closing operations by means of a simple structure. A stationary plate and a movable plate resiliently contact, due to the action of a spring, over different contact areas as a movable shaft rotates. This enables a change in a damping force in accordance with opening and closing angles. Accordingly the damper device which allows diverse opening and closing operations, such as to open at a constant speed from immediately after starting to open, is achievable by means of a simple structure.
    Type: Grant
    Filed: April 9, 2007
    Date of Patent: September 30, 2008
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventor: Makoto Miyamoto
  • Information recording method and apparatus with suppressed mark edge jitters
    Publication number: 20080212454
    Abstract: Recording information is disclosed in which an information recording medium is irradiated with a recording energy beam that is power-modulated into at least a record power level and a record-ready power level lower than the record power level. The information is recorded on the recording medium in the form of length and interval of a mark portion. When forming a mark portion of a predetermined length, the radiation energy of the energy beam is increased as compared with when forming a mark portion of a different length before or after the first pulse of an energy beam pulse train including at least a pulse for forming the mark portion.
    Type: Application
    Filed: March 28, 2008
    Publication date: September 4, 2008
    Inventors: Makoto Miyamoto, Tsuyoshi Toda, Masatoshi Ohtake, Motoyasu Terao, Junko Ushiyama, Keikichi Andoo, Yumiko Anzai, Akemi Hirotsune, Tetsuya Nishida, Hideki Saga
  • Information recording method and apparatus with suppressed mark edge jitters
    Patent number: 7417933
    Abstract: Recording information is disclosed in which an information recording medium is irradiated with a recording energy beam that is power-modulated into at least a record power level and a record-ready power level lower than the record power level. The information is recorded on the recording medium in the form of length and interval of a mark portion. When forming a mark portion of a predetermined length, the radiation energy of the energy beam is increased as compared with when forming a mark portion of a different length before or after the first pulse of an energy beam pulse train including at least a pulse for forming the mark portion.
    Type: Grant
    Filed: June 30, 2005
    Date of Patent: August 26, 2008
    Assignee: Hitachi, Ltd.
    Inventors: Makoto Miyamoto, Tsuyoshi Toda, Masatoshi Ohtake, Motoyasu Terao, Junko Ushiyama, Keikichi Andoo, Yumiko Anzai, Akemi Hirotsune, Tetsuya Nishida, Hideki Saga
  • Information recording method and apparatus with suppressed mark edge jitters
    Publication number: 20080192617
    Abstract: Recording information is disclosed in which an information recording medium is irradiated with a recording energy beam that is power-modulated into at least a record power level and a record-ready power level lower than the record power level. The information is recorded on the recording medium in the form of length and interval of a mark portion. When forming a mark portion of a predetermined length, the radiation energy of the energy beam is increased as compared with when forming a mark portion of a different length before or after the first pulse of an energy beam pulse train including at least a pulse for forming the mark portion.
    Type: Application
    Filed: March 28, 2008
    Publication date: August 14, 2008
    Inventors: Makoto Miyamoto, Tsuyoshi Toda, Masatoshi Ohtake, Motoyasu Terao, Junko Ushiyama, Keikichi Andoo, Yumiko Anzai, Akemi Hirotsune, Tetsuya Nishida, Hideki Saga
  • Information recording medium
    Patent number: 7393574
    Abstract: In an information recording medium, a Bi—Ge—Te material is adopted as a phase-change recording layer material. A C—Ta—O material is used for at least any one of first and second boundary layers which are in contact with a recording layer.
    Type: Grant
    Filed: April 4, 2005
    Date of Patent: July 1, 2008
    Assignee: Hitachi Maxwell, Ltd.
    Inventors: Tamotsu Fuchioka, Makoto Iimura, Makoto Miyamoto, Yoshihiro Ikari
  • (Meth)acrylate-terminated polyphenylene ether
    Patent number: 7393904
    Abstract: The present invention provides a bifunctional phenylene ether oligomer compound having a thermosetting functional group at each terminal, an epoxy resin containing the above oligomer compound and a use thereof. That is, it provides a sealing epoxy resin composition for sealing an electric part, an epoxy resin composition for laminates, a laminate, a printed wiring board, a curable resin composition and a photosensitive resin composition. The resins and resin compositions of the present invention are used in electronics fields in which a low dielectric constant, a low dielectric loss tangent and high toughness are required and also used for various uses such as coating, bonding and molding.
    Type: Grant
    Filed: August 17, 2007
    Date of Patent: July 1, 2008
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Kenji Ishii, Yasumasa Norisue, Kiyonari Hiramatsu, Makoto Miyamoto, Makoto Yamazaki, Daisuke Ohno
  • Bifunctional phenylene ether oligomer, its derivatives, its use and process for the production thereof
    Publication number: 20080154006
    Abstract: A bifunctional phenylene ether oligomer of the formula (1), obtained by oxidation polymerization of a bivalent phenol of the formula (2) and a monovalent phenol of the formula (3), H?O—Y?a?O—X—O??Y—O?bH ??(1) HO—X—OH ??(2) Y—OH ??(3) wherein —X— is represented by the formula (2?), and Y—O— is represented by the formula (3), R2, R3, R4, R8, R9, R10 and R11 in the formula (2?) and the formula (3?) being required not to be a hydrogen atom, and its use.
    Type: Application
    Filed: February 13, 2008
    Publication date: June 26, 2008
    Inventors: Akikazu Amagai, Kenzi Ishii, Kiyonari Hiramatsu, Makoto Miyamoto, Daisuke Ohno, Katsutoshi Yamazaki, Yasumasa Norisue
  • Di(meth)acrylate of epoxy-terminated polyphenylene ether
    Patent number: 7388057
    Abstract: A bifunctional phenylene ether oligomer containing monophenylene and biphenylene moieties can be rendered thermosetting by reacting the terminal phenolic hydroxyl groups with a) a cyanogen halide to introduce terminal cyanate groups, b) a halogenated glycidyl to form terminal epoxy groups, or c) an allyl halide to produce allylic terminal groups. The epoxy-terminated phenylene ether oligomer can be further reacted acrylic and/or methacrylic acid to yield an epoxy di(meth)acrylate which can be further modified with a carboxylic acid or anhydride to obtain and acid-modified epoxy di(meth)acrylate.
    Type: Grant
    Filed: June 22, 2007
    Date of Patent: June 17, 2008
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Akikazu Amagai, Kenzi Ishii, Kiyonari Hiramatsu, Makoto Miyamoto, Daisuke Ohno, Katsutoshi Yamazaki, Yasumasa Norisue
  • Information recording method, information recording medium and information recording apparatus
    Patent number: 7352675
    Abstract: An information recording method using an optical recording medium including the steps of forming a plurality of recording pulses to irradiate the optical recording medium and recording information to the optical recording medium by irradiating the recording pulses on the optical recording medium. A leading edge of a first recording pulse of the recording pulses shifts at a shifting value, and the shifting value is determined by a combination of a length of M(n) of a mark being currently written and a length s(n?1) of a space precedent to the mark.
    Type: Grant
    Filed: July 8, 2005
    Date of Patent: April 1, 2008
    Assignee: Hitachi, Ltd.
    Inventors: Takeshi Maeda, Hirofumi Sukeda, Hiroyuki Minemura, Hidehiko Kando, Makoto Miyamoto
  • Information recording method, information recording medium and information recording apparatus
    Patent number: 7349318
    Abstract: An information recording apparatus using an optical recording medium includes a light source to irradiate a light beam to the optical recording medium and a pulse former for forming a plurality of recording pulses of the light beam. A leading edge of a first recording pulse of the recording pulses shifts at a shifting value, and the shifting value is determined by a combination of a length of M(n) of a mark being currently written and a length s(n?1) of a space precedent to the mark.
    Type: Grant
    Filed: July 8, 2005
    Date of Patent: March 25, 2008
    Assignee: Hitachi, Ltd.
    Inventors: Takeshi Maeda, Hirofumi Sukeda, Hiroyuki Minemura, Hidehiko Kando, Makoto Miyamoto
  • Information recording method, information recording medium and information recording apparatus
    Patent number: 7349317
    Abstract: An information recording method using an optical recording medium includes the steps of forming a plurality of recording pulses to irradiate the optical recording medium and recording information to the optical recording medium by irradiating the recording pulses on the optical recording medium. At least a leading edge of a first recording pulse and a trailing edge of a last recording pulse of the recording pulses shift at a shifting value, wherein the shifting value is determined by combinations of a length of M(n) of a mark being currently written and at least one of a length s(n?1) of a space precedent to the mark and a length s(n+1) of a space subsequent to the mark.
    Type: Grant
    Filed: July 8, 2005
    Date of Patent: March 25, 2008
    Assignee: Hitachi, Ltd.
    Inventors: Takeshi Maeda, Hirofumi Sukeda, Hiroyuki Minemura, Hidehiko Kando, Makoto Miyamoto
  • Polyphenylene ether oligomer compound, derivatives thereof and use thereof
    Publication number: 20080033117
    Abstract: The present invention provides a bifunctional phenylene ether oligomer compound having a thermosetting functional group at each terminal, an epoxy resin containing the above oligomer compound and a use thereof. That is, it provides a sealing epoxy resin composition for sealing an electric part, an epoxy resin composition for laminates, a laminate, a printed wiring board, a curable resin composition and a photosensitive resin composition. The resins and resin compositions of the present invention are used in electronics fields in which a low dielectric constant, a low dielectric loss tangent and high toughness are required and also used for various uses such as coating, bonding and molding.
    Type: Application
    Filed: August 17, 2007
    Publication date: February 7, 2008
    Inventors: Kenji Ishii, Yasumasa Norisue, Kiyonari Hiramatsu, Makoto Miyamoto, Makoto Yamazaki, Daisuke Ohno
  • Damper device
    Publication number: 20070278725
    Abstract: A damper device used in a range of electronic apparatuses. The damper device allows a diverse opening and closing operations by means of a simple structure. A stationary plate and a movable plate resiliently contact, due to the action of a spring, over different contact areas as a movable shaft rotates. This enables a change in a damping force in accordance with opening and closing angles. Accordingly the damper device which allows diverse opening and closing operations, such as to open at a constant speed from immediately after starting to open, is achievable by means of a simple structure.
    Type: Application
    Filed: April 9, 2007
    Publication date: December 6, 2007
    Inventor: Makoto Miyamoto
  • Bifunctional phenylene ether oligomer, its derivatives, its use and process for the production thereof
    Publication number: 20070265423
    Abstract: A bifunctional phenylene ether oligomer of the formula (1), obtained by oxidation polymerization of a bivalent phenol of the formula (2) and a monovalent phenol of the formula (3), wherein —X— is represented by the formula (2?), and Y—O— is represented by the formula (3), R2, R3, R4, R8, R9, R10 and R11 in the formula (2?) and the formula (3?) being required not to be a hydrogen atom, and its use.
    Type: Application
    Filed: June 22, 2007
    Publication date: November 15, 2007
    Inventors: Akikazu Amagai, Kenzi Ishii, Kiyonari Hiramatsu, Makoto Miyamoto, Daisuke Ohno, Katsutoshi Yamazaki, Yasumasa Norisue
  • Information Recording Method, Information Recording Medium And Information Recording Apparatus
    Publication number: 20070237049
    Abstract: An information recording method using a recording medium includes forming a plurality of recording pulses in accordance with both a reference waveform having been stored in the recording medium and data regarding a shifting value relying on material of the recording medium also having been stored in the recording medium in a table manner, and recording information included in the plurality of recording pulses to the recording medium. The recording information is arranged to be stored according to the material of the recording medium.
    Type: Application
    Filed: June 14, 2007
    Publication date: October 11, 2007
    Inventors: Takeshi Maeda, Hirofumi Sukeda, Hiroyuki Minemura, Hidehiko Kando, Makoto Miyamoto
  • Polyphenylene ether oligomer compound, derivatives thereof and use thereof
    Patent number: 7276563
    Abstract: The present invention provides a bifunctional phenylene ether oligomer compound having a thermosetting functional group at each terminal, an epoxy resin containing the above oligomer compound and a use thereof. That is, it provides a sealing epoxy resin composition for sealing an electric part, an epoxy resin composition for laminates, a laminate, a printed wiring board, a curable resin composition and a photosensitive resin composition. The resins and resin compositions of the present invention are used in electronics fields in which a low dielectric constant, a low dielectric loss tangent and high toughness are required and also used for various uses such as coating, bonding and molding.
    Type: Grant
    Filed: November 4, 2004
    Date of Patent: October 2, 2007
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Kenji Ishii, Yasumasa Norisue, Kiyonari Hiramatsu, Makoto Miyamoto, Makoto Yamazaki, Daisuke Ohno
  • OPTICAL TAPE MEDIA, MARKING, SYSTEMS, AND APPARATUS AND PROCESS FOR PRODUCING THEREOF
    Publication number: 20070206477
    Abstract: Disclosed herein are aspects of optical tape technology, tape manufacturing, and tape usage.
    Type: Application
    Filed: February 2, 2007
    Publication date: September 6, 2007
    Inventors: George Raniuk, Tzuo-Chang Lee, Michael Kearnan, Paul Coles, Faramarz Mahnad, Joseph Panish, Carl Maietta, John Ritter, Satya Mallick, Timothy Frey, Dennis Lauze, Makoto Miyamoto
  • Opening and closing device
    Publication number: 20070180652
    Abstract: An opening and closing device includes springs to be held by a fixed body and a movable body which are slidable relative to each other. Each of the springs has a plurality of turns, and an inner turn is smaller in diameter than the outer turns. At least one of the outer turns is overlapped with the inner turn. The plurality of turns enables the springs to produce a predetermined pushing force. The opening and closing device can prevent an increase in its height by the height of the inner turn, thereby being compact and ensuring precise operation.
    Type: Application
    Filed: January 11, 2007
    Publication date: August 9, 2007
    Inventor: Makoto Miyamoto
  • Bifunctional phenylene ether oligomer, its derivatives, its use and process for the production thereof
    Patent number: 7247682
    Abstract: A bifunctional phenylene ether oligomer of the formula (1), obtained by oxidation polymerization of a bivalent phenol of the formula (2) and a monovalent phenol of the formula (3), wherein —X— is represented by the formula (2?), and Y—O— is represented by the formula (3), R2, R3, R4, R8, R9, R10 and R11 in the formula (2?) and the formula (3?) being required not to be a hydrogen atom, and its use.
    Type: Grant
    Filed: April 21, 2005
    Date of Patent: July 24, 2007
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Akikazu Amagai, Kenzi Ishii, Kiyonari Hiramatsu, Makoto Miyamoto, Daisuke Ohno, Katsutoshi Yamazaki, Yasumasa Norisue
  • Head support device and disk device having the same
    Publication number: 20070139822
    Abstract: A head support device of self-balancing type and a disk drive are disclosed. The head support device reduces manufacturing variation in a load and the number of components, and has stability and reliability, while being inexpensive. In this head support device, a flange and a nut cramp, via a collar, a head support arm having a reinforcing plate fixed thereto. The head support arm is supported rotatably about a line provided between contact points at which pivots contact the flange and in a direction perpendicular to a recording medium. A spring as an elastic member provides an urging force toward the recording medium, and is provided unitarily with the head support arm. Bent portions are provided on both sides of the arm composing the head support arm to a tab.
    Type: Application
    Filed: December 9, 2005
    Publication date: June 21, 2007
    Inventors: Hideyuki Hashi, Yoshihiro Ueno, Makoto Miyamoto