Patents by Inventor Akira Hashimoto

Akira Hashimoto 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: 20070107611
    Abstract: In a print area provided on a peripheral surface of a gravure roll, a plurality of cells are defined by printing-direction walls and perpendicular walls, and each perpendicular wall has a plurality of cuts. In a center portion of the print area, most intersections of the printing-direction walls and the perpendicular walls are defined by T-shaped intersections where the perpendicular walls do not cross the printing-direction walls, but meet the printing-direction walls in a T-shaped arrangement. Preferably, round chamfers are provided at corners where a portion of each printing-direction wall and a portion of each perpendicular wall intersect, and at leading ends of the perpendicular walls pointing toward the cuts.
    Type: Application
    Filed: January 3, 2007
    Publication date: May 17, 2007
    Applicant: MURATA MANUFACTURING CO., LTD.
    Inventors: Hiroyoshi TAKASHIMA, Akira HASHIMOTO, Kazuhiro TABATA, Yoshihiro KANAYAMA, Takashige TANABE
  • Publication number: 20070095456
    Abstract: A method for manufacturing a multilayer ceramic electronic element includes the steps of forming ceramic green sheets having superior surface smoothness and small variations in thickness at a high speed, in which defects such as pinholes are prevented from occurring, and providing internal electrodes and step-smoothing ceramic paste on the ceramic green sheets with high accuracy. The method includes the steps of applying ceramic slurry to a base film by a die coater followed by drying performed in a drying furnace for forming the ceramic green sheets, and performing gravure printing of conductive paste and ceramic paste onto the ceramic green sheets by using a first and a second gravure printing apparatus, respectively. Accordingly, the internal electrodes are formed, and the step-smoothing ceramic paste is provided in regions other than those in which the internal electrodes are formed.
    Type: Application
    Filed: December 15, 2006
    Publication date: May 3, 2007
    Applicant: MURATA MANUFACTURING CO., LTD.
    Inventors: Shingo OKUYAMA, Hiroyoshi TAKASHIMA, Akira HASHIMOTO, Shinichi KOKAWA
  • Publication number: 20070089808
    Abstract: The object of the present invention is to provide a method for forming a coating on the surface of an aluminium or aluminium alloy using a trivalent chromate solution which dose not contain any harmful hexavalent chromium, in which the coating has an excellent corrosion resistance and adhesion with paints. The present invention provides a hexavalent chromium free trivalent chromate solution for an aluminium or aluminium alloy, in which the concentration of a trivalent chromium is in the range of from 0.01 to 100 g/L, the concentration of a metal selected from the group consisting of zinc, cobalt, nickel and a combination thereof is in the range of from 0.01 to 100 g/L and the concentration of a fluorine is in the range of from 0.01 to 50 g/L.
    Type: Application
    Filed: June 9, 2006
    Publication date: April 26, 2007
    Inventor: Akira Hashimoto
  • Patent number: 7199492
    Abstract: An armature of a linear motor includes a plurality of first magnetic teeth and a plurality of second magnetic teeth, each of the magnetic teeth being formed by laminating multiple tooth elements made of electromagnetic steel sheets. The first magnetic teeth are arranged side by side in a linear form while the second magnetic teeth are located one each between the successive first magnetic teeth. Each of the second magnetic teeth interconnects the two adjacent first magnetic teeth located on both sides.
    Type: Grant
    Filed: June 18, 2004
    Date of Patent: April 3, 2007
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Akira Hashimoto, Yasuki Kimura, Satoshi Yamashiro, Yuji Nakahara, Akira Watarai, Michio Nakamoto
  • Patent number: 7196898
    Abstract: A capacitor capable of being incorporated into a packaging substrate, which capacitor includes a high-dielectric-constant layer, and an upper electrode layer and a lower electrode layer sandwiching the high-dielectric-constant layer from the upper side and the lower side. A packaging substrate containing the capacitor, and a method for producing the same are also provided.
    Type: Grant
    Filed: October 28, 2004
    Date of Patent: March 27, 2007
    Assignees: Waseda University, Oki Electric Industry Co., Ltd., Tokyo Ohka Kogyo Co., Ltd.
    Inventors: Tetsuya Osaka, Ichiro Koiwa, Akira Hashimoto, Yoshimi Sato
  • Patent number: 7186307
    Abstract: By increasing the quantity of resin binder of at least one of conductive paste and ceramic green sheet, adhesion between conductive film and the ceramic green sheet is improved when an intaglio filled with the conductive paste is hot pressed on the ceramic green sheet. As a result, transfer failure at intaglio transfer is removed and internal fracture of the ceramic green sheet is suppressed. Also, by coating an adhesive layer on an intaglio filled with conductive paste, adhesion with ceramic green sheet is improved and transfer failure at intaglio transfer is suppressed.
    Type: Grant
    Filed: July 11, 2002
    Date of Patent: March 6, 2007
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Akira Hashimoto, Masaaki Katsumata
  • Patent number: 7185418
    Abstract: The present invention relates to a structure of a stacked stator core formed when rotary motors are manufactured and to a method of manufacturing the stacked stator core. It is possible to improve the workability in the winding process and the productivity of the stator and the rotary motor because the stacked stator core includes a plurality of stator cores 300, each of which is made up of a prescribed number of stacked sheet magnetic materials, a plurality of yoke members 301 forming each stator core, a bendable bent portion 304 provided between the yoke members, and an interconnecting portion 401 for connecting the plurality of stator cores 300 one another while providing a difference in level, by connecting the top end of one stator core with the bottom end of the other stator core.
    Type: Grant
    Filed: September 30, 2003
    Date of Patent: March 6, 2007
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Nobuaki Miyake, Akio Matsui, Yuji Nakahara, Yasuyuki Nakanishi, Akira Hashimoto, Masaya Motohashi
  • Publication number: 20070002578
    Abstract: An illuminating apparatus includes: a light source that emits a source light; and a light guiding module that has an overlap rod portion which can pass luminous fluxes traveling in different directions therethrough and has a returning member which returns the luminous fluxes having passed through the overlap rod portion at least once so that the luminous fluxes enter the overlap rod portion in directions different from the previous time, whereby the source light is made uniform.
    Type: Application
    Filed: July 3, 2006
    Publication date: January 4, 2007
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Makoto FURUSAWA, Akira HASHIMOTO
  • Publication number: 20070002280
    Abstract: An illuminator includes a polarization converter that converts source light into first polarized light, a polarization separation member that separates the first polarized light of from the polarization converter and second polarized light different from the first polarized light, by reflection and transmission, a polarization switch member that reflects the first polarized light passed through the polarization separation member and changes same into the second polarized light, and a light guide having a first rod arranged between the polarization converter and the polarization separation member, a second rod arranged between the polarization separation member and the polarization switch member, and a third rod arranged on an optical path of the second polarized light separated by the polarization separation member.
    Type: Application
    Filed: July 3, 2006
    Publication date: January 4, 2007
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Makoto FURUSAWA, Akira HASHIMOTO, Toru KURIHARA, Hiroyuki SHINDO
  • Publication number: 20060285086
    Abstract: A display unit includes: a light modulation unit that includes an effective area, and modulates an illumination light entering to the effective area; a light-emitting unit that includes a plurality of light-emitting areas that can be made to emit a light or stop emitting a light, and are substantially similar in outline shape to a plurality of effective image modulation areas set in the effective area; and a critical illumination system that guides, as the illumination light, a luminous flux as a result of light emission of the light-emitting unit onto the effective image modulation areas in the effective area of the light modulation unit.
    Type: Application
    Filed: June 20, 2006
    Publication date: December 21, 2006
    Applicant: Seiko Epson Corporation
    Inventors: Akira HASHIMOTO, Taisuke UEHARA
  • Patent number: 7121555
    Abstract: A seal assembly has simple assembly structures, and provides secure sealing effects. A crawler-track connection structure allows the seal assembly to be easily mounted, and securely prevents overflow of a lubricant and the like to the outside. A pair of seal rings (1) and (1) individually having lip portions (23) and (23) are disposed such that each of the lip portions (23) and (23) protrudes in a direction opposing an axial direction, and a load seal ring (2) is compressed and inserted between the pair of seal rings (1) and (1). The load seal ring (2) exerts reaction forces on the pair of lip portions (23) and (23) outwardly in the axial direction.
    Type: Grant
    Filed: March 22, 2001
    Date of Patent: October 17, 2006
    Assignee: Komatsu Ltd.
    Inventors: Teiji Yamamoto, Akira Hashimoto, Hiroyuki Nakaishi
  • Publication number: 20060214526
    Abstract: A variable-speed rotating electric machine includes at least two armatures having respective armature coils for multiple phases, and a rotor having permanent magnets. The armatures are arranged concentrically with each other in such a manner that electrical angular positions of the individual armatures can be relatively varied in a circumferential direction. The armature coils of each phase are series-connected and the rotor is arranged concentrically with the armatures on the inside thereof.
    Type: Application
    Filed: November 29, 2005
    Publication date: September 28, 2006
    Applicant: MITSUBISHI DENKI KABUSHIKI KAISHA
    Inventors: Masao Morita, Kouki Naka, Masaya Inoue, Akira Hashimoto
  • Publication number: 20060210408
    Abstract: A hermetically sealed rotary compressor 100 including an electrically-driven element 2, a rotary compressing element 4 equipped with a cylinder 41 having a compression chamber 43 and a hermetically sealed container 1 in which oil 8 is stocked, is equipped with and oil path 62 for injecting the oil 8 into the compression chamber 43 when refrigerant is sucked into the compression chamber 43, and an opening/closing valve 80 for opening/closing the oil path 62 in accordance with the discharge pressure of the rotary compressing element 4 of the pressure of the compressed refrigerant compressed by the rotary compressing element 4.
    Type: Application
    Filed: March 16, 2006
    Publication date: September 21, 2006
    Applicant: Sanyo Electric Co., Ltd.
    Inventors: Hirotsugu Ogasawara, Takahiro Nishikawa, Masayuki Hara, Hiroyuki Yoshida, Yoshihisa Kogure, Akira Hashimoto
  • Publication number: 20060197916
    Abstract: A projector which projects an image, includes: an optical configuration section which includes: a light source which emits light; an optical conversion section which includes a conversion section which converts the light emitted from the light source into an image based on image data; and a projection lens which enlarges and projects the image converted by the optical conversion section; a circuit configuration section which operates the optical configuration section; a housing which is included in the exterior of the projector and includes, in its outer surface portion, a heat releasing section; and a heat transfer member which transfers, to the housing, heat emitted by heat emitting components of the circuit configuration section and the optical configuration section.
    Type: Application
    Filed: February 24, 2006
    Publication date: September 7, 2006
    Applicant: Seiko Epson Corporation
    Inventor: Akira Hashimoto
  • Patent number: 7073640
    Abstract: A brake structure of a traction machine includes a brake drum which is made rotatable about a shaft disposed on a rotary axis of the traction machine, and an electromagnetic brake unit built in an inner space of the brake drum. The electromagnetic brake unit includes a plurality of movable iron cores, a plurality of brake shoes located on the outside of the individual movable iron cores and joined thereto by connecting members, the brake shoes having curved outer surfaces facing a curved inner surface of the brake drum, and a one-piece formed stationary iron core block. The one-piece formed stationary iron core block has a plurality of stationary iron core portions joined to the individual movable iron cores via compression springs for forcing the individual brake shoes against the curved inner surface of the brake drum via the movable iron cores and the connecting members.
    Type: Grant
    Filed: June 14, 2004
    Date of Patent: July 11, 2006
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Hitoshi Ota, Akira Hashimoto, Kazuhiro Shono, Naoki Kajita, Hisanori Uozumi, Naoki Hashiguchi
  • Patent number: 7073639
    Abstract: A rotational machine includes a shaft, a rotary member rotatably mounted on the shaft with a bearing fitted between the shaft and the rotary member, an oil seal for sealing the bearing to prevent leakage of lubricant from inside the bearing through its axial end onto a surface of the rotary member, a brake which comes into sliding contact with a contact surface area formed on the surface of the rotary member for arresting rotation of the rotary member, a supporting member fixedly mounted on the shaft face to face with the rotary member forming a gap therebetween, the gap serving as a fluid path through which the lubricant which has leaked over the oil seal is allowed to flow, and an oil stop portion formed at a location in the gap between the oil seal and the contact surface area for impeding flow of the leaked lubricant.
    Type: Grant
    Filed: July 19, 2004
    Date of Patent: July 11, 2006
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Hitoshi Ota, Akira Hashimoto, Shinichiro Yoshida, Yuji Nakahara, Hisanori Uozumi, Naoki Hashiguchi, Naoki Kajita
  • Patent number: 7070898
    Abstract: A toner having a favorable fixability, excelling in charge stability, and capable of forming a image of retaining a high image density and a high resolution in long-term use is provided. That is, the toner of the present invention is a toner obtained by polymerizing a polymerizable monomer composition comprising a polymerizable monomer and a colorant, in which the polymerizable monomer composition is polymerized using a polymerization initiator comprising a redox initiator which includes an organic peroxide with a 10-hour half-life temperature of 86° C. or higher and an reducing agent; the toner has a ratio of a weight-average particle diameter to a number-average particle diameter of 1.40 or less; and the toner has top of a main-peak in a molecular weight range of 5,000 to 50,000 in a molecular weight distribution measured using GPC of the THF-soluble part thereof, including t-butanol with a content of 0.1 to 1,000 ppm.
    Type: Grant
    Filed: December 4, 2003
    Date of Patent: July 4, 2006
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tatsuya Nakamura, Kenji Okado, Akira Hashimoto, Keiji Komoto
  • Publication number: 20060140802
    Abstract: In a multicylindrical rotary compressor constituted to be usable by urging an only first vane with respect to a first roller by means of a spring member to switch a first operation mode in which first and second rotary compression elements perform compression works and a second operation mode in which substantially the only first rotary compression element performs the compression work, an object is to reduce generation of collision noises due to collision of the second vane with the second roller at a time when the first operation mode is switched to the second operation mode, and a pressure in a back-pressure chamber of the second vane is discharged on a low-pressure chamber side in a second cylinder in a case where the first operation mode is switched to the second operation mode.
    Type: Application
    Filed: December 6, 2005
    Publication date: June 29, 2006
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Hirotsugu Ogasawara, Takahiro Nishikawa, Masayuki Hara, Hiroyuki Yoshida, Akira Hashimoto
  • Patent number: 7063014
    Abstract: A photogravure printing press includes plurality of cells defined by printing-direction walls and substantially perpendicular walls formed in each of image areas on the circumferential surface of a gravure roll. A plurality of substantially perpendicular cuts are formed in each of the substantially perpendicular walls. In the central portion of the image area, each of the substantially perpendicular cuts is formed so as to have a gap greater than the width of each of the printing-direction walls and the substantially perpendicular walls.
    Type: Grant
    Filed: April 16, 2004
    Date of Patent: June 20, 2006
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Akira Hashimoto, Hiroyoshi Takashima, Yoshihiro Kanayama, Kazuhiro Tabata, Takahiro Nishizawa
  • Publication number: 20060127793
    Abstract: In a carrier comprising carrier particles; each carrier particle comprising a carrier core and a coat layer for coating the carrier core, the carrier core has a ferrite component containing i) a metal oxide having at least one of metallic elements Mg, Li and Ca, the total-sum content of which is 10 to 40 mole % based on the whole ferrite component, and ii) a metal oxide having at least one of metallic elements Mn, Cu, Cr and Zn, the total-sum content of which is 50 to 4,000 ppm based on the whole ferrite component. The carrier has a volume distribution based 50% particle diameter (D50) of from 15.0 to 55.0 ?m and a degree of surface unevenness of from 1.05 to 1.30, and the coat layer contains particles; the particles having a number-average primary particle diameter of from 10 to 500 nm.
    Type: Application
    Filed: November 7, 2005
    Publication date: June 15, 2006
    Applicant: Canon Kabushiki Kaisha
    Inventors: Yojiro Hotta, Tetsuya Ida, Wakashi Iida, Akira Hashimoto, Nozomu Komatsu, Yoshinobu Baba