Patents by Inventor Masaaki Yamamoto

Masaaki Yamamoto 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).

  • Publication number: 20160033206
    Abstract: The invention provides a flattened heat pipe whose vapor flowing passage is not clogged and which has an excellent capillary force. The flattened heat pipe has a closed container formed by flattening a tubular container, a plurality of wick structures arrayed within the container in a longitudinal direction so as to form an acute-angled portion where a capillary force is large at least partially within the container, a hollow portion formed of an outer peripheral surface of the wick structure and an inner wall surface of the container and a working fluid sealed into the container.
    Type: Application
    Filed: October 9, 2015
    Publication date: February 4, 2016
    Applicant: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Hideaki KAMEOKA, Masanobu SUGIMURA, Tatsuro MIURA, Yasumi SASAKI, Hiroshi OKADA, Shinichi FURUMOTO, Masaaki YAMAMOTO
  • Publication number: 20160027833
    Abstract: According to one embodiment, a semiconductor device includes a semiconductor layer including a first plane and a second plane facing the first plane. A semiconductor element is formed in the semiconductor layer. The semiconductor layer includes a separation region formed to extend from the first plane to the second plane. The separation region surrounds a region where the semiconductor element is formed. The separation region includes a first separation region formed from the first plane of the semiconductor layer toward an interior of the semiconductor layer, and a second separation region formed from the second plane of the semiconductor layer to the first separation region.
    Type: Application
    Filed: March 6, 2015
    Publication date: January 28, 2016
    Inventors: Masaaki Yamamoto, Kentaro Imamizu, Mokuji Kageyama
  • Patent number: 9238730
    Abstract: Provided is a vibration-insulating rubber composition and a crosslinked vibration-insulating rubber composition which are excellent in low dynamic-to-static modulus ratio, elongation fatigue resistance, low temperature characteristics, and processability, and a vibration-insulating rubber using the vibration-insulating rubber composition and the crosslinked vibration-insulating rubber composition. The vibration-insulating rubber composition of the present invention includes: a rubber component having a conjugated diene compound/non-conjugated olefin copolymer, and a non-conjugated diene-based polymer; a vulcanizing agent having a bismaleimide compound; and N-phenyl-N-(trichloromethylthio)benzenesulfonamide.
    Type: Grant
    Filed: January 30, 2013
    Date of Patent: January 19, 2016
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Masaaki Yamamoto
  • Patent number: 9197840
    Abstract: Disclosed is a head mount display including: a display section displaying video pictures for the left and right eyes; an audio output section outputting sound accompanying the video pictures; a user operation section operated by the user to adjust the volume of the sound outputted by the audio output section; a mounting sensor detecting whether or not the user has worn the head mount display; and a control section controlling the operation to adjust the volume requested by the user by operating the user operation section in accordance with a detection result from the mounting sensor.
    Type: Grant
    Filed: October 17, 2012
    Date of Patent: November 24, 2015
    Assignee: SONY CORPORATION
    Inventors: Masaaki Yamamoto, Atsushi Sugama, Naomasa Takahashi, Ayataka Nishio
  • Patent number: 9188396
    Abstract: The invention provides a flattened heat pipe whose vapor flowing passage is not clogged and which has an excellent capillary force. The flattened heat pipe has a closed container formed by flattening a tubular container, a plurality of wick structures arrayed within the container in a longitudinal direction so as to form an acute-angled portion where a capillary force is large at least partially within the container, a hollow portion formed of an outer peripheral surface of the wick structure and an inner wall surface of the container and a working fluid sealed into the container.
    Type: Grant
    Filed: January 20, 2012
    Date of Patent: November 17, 2015
    Assignee: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Hideaki Kameoka, Masanobu Sugimura, Tatsuro Miura, Yasumi Sasaki, Hiroshi Okada, Shinichi Furumoto, Masaaki Yamamoto
  • Publication number: 20150299434
    Abstract: The present invention addresses the problem of providing: an antivibration rubber composition which can provide a hardened rubber product that has excellent antivibration properties (a low motion magnification), compression permanent strain and low-temperature properties and can keep strength properties (hardness, tensile elongation, tensile strength) and hot aging resistance thereof at good levels; and an antivibration rubber which is produced by hardening the rubber composition. An antivibration rubber composition characterized by comprising a rubber component, sulfur, a bismaleimide compound and N-phenyl-N-(trichloro-methylthio)benzenesulfoneamide, wherein the rubber component comprises a natural rubber and a polybutadiene rubber at a blend ratio of 60/40 to 90/10 by mass.
    Type: Application
    Filed: November 12, 2013
    Publication date: October 22, 2015
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Takeshi Nagata, Masaaki Yamamoto
  • Patent number: 9162551
    Abstract: A register has a narrow and long air blow outlet long in the longitudinal direction and short in the shorter-side direction, and is provided with a front movable louver along the longitudinal direction inside the air blow outlet. The front movable louver has one vertical fin having an annular fin portion at the center. The annular fin portion is formed so as to have a substantially rectangular opening in an air blowing direction in a front view, and has flat plate portions on both side portions. Upper shaft portions are provided on both end portions of the annular fin portion via upper fin portions, and lower shaft portions are provided via lower fin portions. The upper shaft portions and lower shaft portions are supported turnably on bearing portions of fixed walls.
    Type: Grant
    Filed: March 25, 2010
    Date of Patent: October 20, 2015
    Assignee: HOWA PLASTICS CO., LTD.
    Inventors: Masaaki Yamamoto, Hidekazu Makimura, Takamitsu Murohashi
  • Patent number: 9153403
    Abstract: The present invention provides an electromagnet device including a horizontal portion of a yoke arranged near one end portion of an iron core, a movable iron piece which pivotably supported on a leading end edge portion of a vertical portion of the yoke which serves as a fulcrum, an end portion of the movable iron piece adapted to be attracted to a magnetic pole portion by a main magnetic circuit, the magnetic pole portion is arranged in the other end portion of the iron core. The main magnetic circuit is formed by applying a voltage to a coil wound around a periphery of the iron core and an auxiliary magnetic circuit formed in parallel with the main magnetic circuit, the auxiliary circuit including a permanent magnet is arranged near the one end portion of the iron core and a magnetic resistance portion, in which a magnetic flux of the permanent magnet is magnetically saturated.
    Type: Grant
    Filed: July 30, 2013
    Date of Patent: October 6, 2015
    Assignee: OMRON Corporation
    Inventors: Toshifumi Sumino, Masaaki Yamamoto, Ichinori Sakai, Mitsuhiro Kawai, Shinichi Furusho
  • Patent number: 9136080
    Abstract: The present invention provides an electromagnet device including: an electromagnet block having a spool around which a coil is wound and an iron core inserted in a central hole of the spool; a yoke connected to an end portion of the iron core via a permanent magnet; a movable iron piece pivotably supported on a pivoting shaft center located at an end face edge portion of the yoke, the movable iron piece is adapted to pivot on a basis of magnetization and demagnetization of the electromagnet block, and a protrusion having a linear edge portion which extends in parallel to the pivoting shaft center and the protrusion protrudes from at least either the movable iron piece or the iron core, the protrusion protrudes in a facing direction in which the movable iron piece and the iron core face each other.
    Type: Grant
    Filed: July 31, 2013
    Date of Patent: September 15, 2015
    Assignee: OMRON Corporation
    Inventors: Toshifumi Sumino, Masaaki Yamamoto, Ichinori Sakai, Tatsuro Kato, Kazuya Murakami
  • Publication number: 20150240054
    Abstract: The purpose of the present invention is to provide a rubber composition that can achieve improved ozone resistance and processing properties (scorch properties) in the rubber composition and that can be favorably used as an antivibration rubber material. A method for manufacturing a rubber composition by adding (A) N-phenyl-N-(trichloromethyl-thio)benzenesulfonamide and (B) an amine antioxidant to a rubber component primarily containing diene-based rubber, wherein the method for manufacturing a rubber composition is characterized in being separately provided with a step of mixing component raw materials containing component (A) and a step of mixing component raw materials containing component (B), whereby the mixing steps comprise at least two stages.
    Type: Application
    Filed: August 6, 2013
    Publication date: August 27, 2015
    Applicant: BRIDGESTONE CORPORATION
    Inventor: Masaaki Yamamoto
  • Publication number: 20150221593
    Abstract: According to one embodiment, in a semiconductor device, a plurality of first wiring lines is provided in a first insulating film on a semiconductor substrate and is adjacent in a direction parallel to the semiconductor substrate. A second insulating film is provided on the first wiring lines and the first insulating film. A plurality of vias is provided in the second insulating film and is electrically connected to the first wiring lines. A third insulating film is provided on the vias and the second insulating film. Adjacent second wiring lines are provided in the third insulating film and are electrically connected to the vias. A fourth insulating film is provided on a sidewall of each of the adjacent second wiring lines, the sidewalls face each other. A conductive film abuts on the adjacent second wiring lines with the fourth insulating film interposed therebetween.
    Type: Application
    Filed: November 14, 2014
    Publication date: August 6, 2015
    Inventors: Masaaki YAMAMOTO, Takeshi SUNADA, Mokuji KAGEYAMA, Kazuhiro TAKIMOTO
  • Patent number: 9070501
    Abstract: The present invention provides an electromagnet device which can obtain a desirable attraction force (retention force) between an iron core and a movable iron piece, a method of assembling the electromagnet device and an electromagnetic relay using the electromagnet device, the electromagnet device including an electromagnet block having the iron core being wound by a coil and an auxiliary yoke fixed to one end portion of the iron core, a yoke connected to the one end portion of the iron core via a permanent magnet, the movable iron piece pivotably supported on a pivoting shaft center (serving as a fulcrum) located in an end face edge portion of the yoke so that the movable iron piece pivots on a basis of magnetization and demagnetization of the electromagnet block, where the permanent magnet is located on an extension line of an axial center of the iron core and is interposed between the auxiliary yoke and the yoke.
    Type: Grant
    Filed: July 30, 2013
    Date of Patent: June 30, 2015
    Assignee: OMRON Corporation
    Inventors: Toshifumi Sumino, Masaaki Yamamoto, Tatsuro Kato, Kazuya Murakami, Harumichi Kitaguchi, Shinichi Furusho
  • Publication number: 20150071813
    Abstract: A brass alloy is provided having good mechanical properties and castability, and excellent general-purpose properties, while its dezincification corrosion is inhibited. The brass alloy contains 0.4% by mass or more and 3.2% by mass or less of Al; 0.001% by mass or more and 0.3% by mass or less of P; 0.1% by mass or more and 4.5% by mass or less of Bi; 0% by mass or more and 5.5% by mass or less of Ni; 0% by mass or more and 0.5% by mass or less of Mn, Fe, Pb, Sn, Si, Mg, and Cd, respectively; and Zn; the balance being Cu and a trace element or elements. The zinc equivalent (Zneq) calculated from the content of Zn and other elements, and the content of Al (% by mass) satisfy the following Equations (1) and (2): Zneq+1.7×Al?35.0??(1) Zneq?0.45×Al?37.0??(2).
    Type: Application
    Filed: February 21, 2013
    Publication date: March 12, 2015
    Inventors: Hiroshi Yamada, Masaaki Yamamoto
  • Publication number: 20150054603
    Abstract: An electromagnet device has a spool having a guard portion at at least one end thereof, a coil wound around a body portion of the spool, and a coil terminal press-fitted in the guard portion. A lead wire of the coil is tied up to a tying-up portion of the coil terminal projected from the guard portion. The tying-up portion is folded toward the guard portion of the spool after the lead wire of the coil is tied up to the tying-up portion of the coil terminal extending in a direction receding from the spool.
    Type: Application
    Filed: July 17, 2014
    Publication date: February 26, 2015
    Inventors: Tatsuro Kato, Masaaki Yamamoto, Kazuya Murakami, Kazuki Tsujikawa, Daisuke Narimatsu, Shinya Matsuo, Harumichi Kitaguchi, Toshifumi Sumino
  • Patent number: 8963544
    Abstract: A magnetic detection element includes a magnetoresistance effect portion composed of a magnetoresistance effect material and a pair of yoke portions. The pair of yoke portions is composed of a soft magnetic material and are respectively arranged so as to be electrically connected to both sides of the magnetoresistance effect portion. The pair of yoke portions guides magnetic flux into the magnetoresistance effect portion. The magnetic detection element also includes a bypass portion, which is composed of a soft magnetic material and is saturated with magnetic flux at lower magnetic field intensity than the yoke portions, and which guides a part of the magnetic flux generated in the yoke portions so as to divert the magnetic flux from the magnetoresistance effect portion.
    Type: Grant
    Filed: September 29, 2009
    Date of Patent: February 24, 2015
    Assignee: The Research Institute for Electric and Magnetic Materials
    Inventors: Hirofumi Imatani, Masaaki Yamamoto, Mamiko Naka, Yasushi Kaneta, Kiwamu Shirakawa
  • Publication number: 20150042425
    Abstract: A contact mechanism with long contact lifetime comprises a base; a movable touch piece that comprises a movable contact and stands in the base; and a fixed touch piece that comprises a fixed contact and stands in the base, wherein the movable contact is opposed to the fixed contact and configured to come into contact with and separate from the fixed contact, an operation member configured to move reciprocally in a horizontal direction is configured to press and release an upper end edge of the movable touch piece, and the movable touch piece is configured to turn to cause the movable contact to come into contact with and separate from the fixed contact, and the movable contact is fixed to a turning tongue piece that is formed cut out by providing a curved cutout groove in the movable touch piece.
    Type: Application
    Filed: July 30, 2014
    Publication date: February 12, 2015
    Applicant: OMRON CORPORATION
    Inventors: Toshifumi Sumino, Masaaki Yamamoto, Tatsuro Kato, Kazuki Tsujikawa, Kazuya Murakami, Harumichi Kitaguchi, Shinya Matsuo, Daisuke Narimatsu
  • Patent number: 8949319
    Abstract: The user of a mobile station which is prepared to receive information providing services from unspecified IP (Information Providers) accesses a gateway server and performs a pre-registration procedure (S71). When an IP server has information to provide to users, it constructs the information in the form of electronic mail, appends user attribute data, and sends this to the gateway server (S72). Upon receiving electronic mail with attribute data, the gateway server stores the electronic mail in a third mailbox, makes a comparison of the user attributes, and calls the mobile stations of relevant users (S73). A user who has received a call requests a download of the electronic mail from the gateway server (S74). The gateway server sends electronic mail to the mobile station which made the request (S75, S76).
    Type: Grant
    Filed: July 20, 2012
    Date of Patent: February 3, 2015
    Assignee: NTT DOCOMO, INC.
    Inventors: Masaaki Yamamoto, Katsumi Sekiguchi, Masaharu Nakatsuchi, Norihito Sekizaki
  • Publication number: 20150031809
    Abstract: Provided is a vibration-insulating rubber composition and a crosslinked vibration-insulating rubber composition which are excellent in low dynamic-to-static modulus ratio, elongation fatigue resistance, low temperature characteristics, and processability, and a vibration-insulating rubber using the vibration-insulating rubber composition and the crosslinked vibration-insulating rubber composition. The vibration-insulating rubber composition of the present invention includes: a rubber component having a conjugated diene compound/non-conjugated olefin copolymer, and a non-conjugated diene-based polymer; a vulcanizing agent having a bismaleimide compound; and N-phenyl-N-(trichloromethylthio)benzenesulfonamide.
    Type: Application
    Filed: January 30, 2013
    Publication date: January 29, 2015
    Inventor: Masaaki Yamamoto
  • Publication number: 20140198193
    Abstract: To appropriately prevent a burn-in phenomenon when a still image such as an OSD screen is displayed on a display panel. When a menu screen is displayed on a video screen in a superimposed manner, a menu phrase in at least one of a left-eye video and a right-eye video is deleted on a menu background area. A time period in which a brightness difference between still pixels in a boundary between a menu background area and a menu phrase remains large is reduced, and thus the occurrence of the burn-in phenomenon can be prevented. However, the menu background area is constantly displayed without being deleted, so that screen flickering does not occur.
    Type: Application
    Filed: August 17, 2012
    Publication date: July 17, 2014
    Applicant: SONY CORPORATION
    Inventors: Masaaki Yamamoto, Masaomi Nabeta, Naomasa Takahashi, Yohsuke Kaji, Yoichi Hirota
  • Publication number: 20140198192
    Abstract: To appropriately prevent the occurrence of a burn-in phenomenon during a display of a video in which an OSD screen is superimposed on a video screen. By appropriately moving the position for displaying an OSD screen when the OSD screen is displayed on a video screen in a superimposed manner, a burn-in phenomenon is prevented from occurring in a menu background area of the OSD screen or a boundary portion between a menu background area and a menu phrase. For example, each time the OSD screen is displayed, the OSD screen is moved by one pixel and then displayed. Movement of the display position of the OSD screen is implemented by an instruction from an OSD display position control unit 215.
    Type: Application
    Filed: August 20, 2012
    Publication date: July 17, 2014
    Applicant: SONY CORPORATION
    Inventors: Masaaki Yamamoto, Naomasa Takahashi, Yohsuke Kaji, Yoichi Hirota