Patents by Inventor Akihiko Souda

Akihiko Souda 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: 20170287651
    Abstract: An object of the present invention is to provide a capacitor and a capacitor module having a long life and capable of a stable action. Therefore, an electrolytic solution L obtained by dissolving an electrolyte salt having a lower hydrolyzability and a higher reaction potential in an electrode than an amidine salt containing a cation which is an imidazolium in a solvent and a sub solvent that reduces resistance of the electrolytic solution is packed in a cell. The electrolyte salt is a quaternary ammonium salt, the solvent is propylene carbonate, and the sub solvent is dimethyl carbonate. The quaternary ammonium salt is triethylmethylammonium tetrafluoroborate or azacyclobutane-1-spiro-1?-azacyclobutyl tetrafluoroborate. A pressure regulating valve 6 for regulating an inner pressure in the cell is disposed. A portion of the electrolytic solution L to be vaporized during use is packed in the cell as an excessive electrolytic solution in advance.
    Type: Application
    Filed: March 31, 2016
    Publication date: October 5, 2017
    Inventors: Koji Maeda, Yutaka Itou, Go Sakuma, Takuji Okumura, Akihiko Souda, Takayoshi Endou
  • Publication number: 20160324039
    Abstract: A cooling case for an electronic device includes: a floor portion defining a cooling channel where a coolant flows; a first arrangement section, in which a first electronic component is disposed, defined in one of top and bottom surfaces of the floor portion; a second arrangement section, in which a second electronic component is disposed, defined in the other of the top and bottom surfaces; and a third arrangement section being in communication with the first and second arrangement sections through an opening of the floor portion. A smoothing capacitor unit is disposed in the third arrangement section to face both the top and bottom surfaces of the floor portion and includes first power storage portion for a circuit of the first electronic component and second power storage portion for a circuit of the second electronic component, which are integral with each other.
    Type: Application
    Filed: April 28, 2015
    Publication date: November 3, 2016
    Inventors: Akihiko Souda, Junichirou Tsuchiya
  • Patent number: 9478362
    Abstract: A plurality of electrical storage elements (11) are electrically connected to each other, and parts of the peripheral surfaces of the electrical storage elements (11) contained in concave surfaces (29) are joined to the concave surfaces (29) with double-sided adhesive tape (35), so that the electrical storage elements (11) can be firmly fixed to a holder (27), and heat can be efficiently transferred from the electrical storage elements (11) to the holder (27) through the double-sided adhesive tape (35).
    Type: Grant
    Filed: February 24, 2010
    Date of Patent: October 25, 2016
    Assignees: PANASONIC CORPORATION, KOMATSU LTD.
    Inventors: Tooru Ninomiya, Susumu Nishimoto, Akihiko Souda
  • Patent number: 9129735
    Abstract: A transformer includes an input-side primary coil, an output-side secondary coil, a core around which the primary and secondary coils are coiled, a casting case housing a transformer body provided by the primary and secondary coils and the core, and a mold resin filling a clearance between the case and the transformer body. The case includes a bottom portion attached with the transformer body, a side wall surrounding the bottom portion, and an opening provided opposite to the bottom portion, the transformer body being housed and the mold resin being filled through the opening. A thickness of a mold layer provided in the clearance between an inner wall surface of the side wall and an outer surface of the transformer body opposed to the inner wall surface is constant for a predetermined length from a point at or near the opening of the case toward the bottom portion.
    Type: Grant
    Filed: October 18, 2012
    Date of Patent: September 8, 2015
    Assignee: Komatsu Ltd.
    Inventors: Junichirou Tsuchiya, Akihiko Souda
  • Patent number: 9107286
    Abstract: An electric storage device includes a plurality of capacitor cells (electric-power storage cells) and a casing that houses the capacitor cells. The casing includes an inspection window through which a condition display unit provided inside the casing is visually checkable. The inspection window includes a through hole that penetrates the casing, a resin plate that closes the through hole from an inside of the casing, and a seal member that is interposed between the resin plate and an inner surface of the casing around the through hole.
    Type: Grant
    Filed: March 19, 2012
    Date of Patent: August 11, 2015
    Assignee: Komatsu Ltd.
    Inventors: Junichirou Tsuchiya, Akihiko Souda
  • Publication number: 20140327507
    Abstract: A transformer (1) includes: an input-side primary coil (21); an output-side secondary coil (22); a core (20) around which the primary and secondary coils (21, 22) are coiled; a casting case (3) housing a transformer body (2) provided by the primary and secondary coils (21, 22) and the core (20); and a mold resin (4) filling a clearance between the case (3) and the transformer body (2). The case (3) includes: a bottom portion (31) attached with the transformer body (2); a side wall (32) surrounding the bottom portion (31); and an opening (30) provided opposite to the bottom portion (31), the transformer body (2) being housed and the mold resin (4) being filled through the opening (30).
    Type: Application
    Filed: October 18, 2012
    Publication date: November 6, 2014
    Applicant: KOMATSU LTD.
    Inventors: Junichirou Tsuchiya, Akihiko Souda
  • Publication number: 20130141889
    Abstract: An electric storage device includes a plurality of capacitor cells (electric-power storage cells) and a casing that houses the capacitor cells. The casing includes an inspection window through which a condition display unit provided inside the casing is visually checkable. The inspection window includes a through hole that penetrates the casing, a resin plate that closes the through hole from an inside of the casing, and a seal member that is interposed between the resin plate and an inner surface of the casing around the through hole.
    Type: Application
    Filed: March 19, 2012
    Publication date: June 6, 2013
    Inventors: Junichirou Tsuchiya, Akihiko Souda
  • Publication number: 20120082887
    Abstract: A plurality of electrical storage elements (11) are electrically connected to each other, and parts of the peripheral surfaces of the electrical storage elements (11) contained in concave surfaces (29) are joined to the concave surfaces (29) with double-sided adhesive tape (35), so that the electrical storage elements (11) can be firmly fixed to a holder (27), and heat can be efficiently transferred from the electrical storage elements (11) to the holder (27) through the double-sided adhesive tape (35).
    Type: Application
    Filed: February 24, 2010
    Publication date: April 5, 2012
    Applicants: KOMATSU LTD., PANASONIC CORPORATION
    Inventors: Tooru Ninomiya, Susumu Nishimoto, Akihiko Souda
  • Publication number: 20110007480
    Abstract: A capacitor module is provided with a plurality of capacitor cells each having a capacitor and a capacitor case provided with a first closed-bottomed screw hole with an opening on a bottom surface for housing the capacitor, a metallic cell-fixing body having a through-hole in communication with the first screw hole to which the capacitor cells are fixed by inserting a cell screw in the through-hole and the first screw hole, an insulator made of a thermally conductive insulating material and provided between the capacitor cells and the cell-fixing body for insulating the capacitor cells from the cell fixing body, and a metallic heat-dissipating body having a second closed-bottomed screw hole in which a cell-fixing body screw is inserted and having a flow passage for causing a cooling medium to flow on a rear surface side of a surface on which the second screw hole is provided.
    Type: Application
    Filed: February 25, 2009
    Publication date: January 13, 2011
    Applicant: KOMATSU LTD.
    Inventor: Akihiko Souda
  • Patent number: 6768964
    Abstract: Illumination light of an illumination device irradiates a part of a peripheral surface of a semiconductor wafer from a side of the semiconductor wafer. Then, a shape of a side surface of a rim of the wafer that is an area to be processed is picked up by a image-pickup device disposed in an irradiation direction so as to be opposed to the illumination device interposing the wafer. A difference of the shape of a contour of the wafer rim can be recognized visually/automatically, promptly and accurately, and a minute and local planar area to be processed on the wafer rim can be determined accurately.
    Type: Grant
    Filed: November 26, 2002
    Date of Patent: July 27, 2004
    Assignee: Komatsu Limited
    Inventor: Akihiko Souda
  • Patent number: 6683682
    Abstract: An electronic component inspection equipment effective to prevent reflection of a virtual image in which among side walls of a vessel for accommodating an electronic component, an image pick-up direction to a first side wall is set in a direction of Brewster angle &PSgr;B1 of the first side wall, a first prism and a first polarized light beam splitter are disposed on the image pick-up direction, an image pick-up direction of a second side wall is set in a direction of Brewster angle &PSgr;B2 of the second side wall, and a second prism and a second polarized light beam splitter are disposed on the image pick-up direction.
    Type: Grant
    Filed: March 17, 2000
    Date of Patent: January 27, 2004
    Assignee: Cognex Technology and Investment Corporation
    Inventors: Yasuyoshi Suzuki, Masashi Higashi, Akihiko Souda
  • Publication number: 20030105610
    Abstract: Light from an illumination device is irradiated toward a part of a peripheral surface of a semiconductor wafer. Then, a sectional shape of a peripheral portion of a dot-mark-forming position on the wafer is picked by an image-pickup device arranged in a direction different from an irradiation direction. A marking position on the wafer peripheral surface in a picked sectional image is determined. A positional shift length between the dot-mark-forming position on said sectional image and an image-forming position of a processing system is calculated, and these positions are mechanically coincided by relative and controllable movement. At that time, a focal point of the processing system is adjusted automatically and dot marks are formed on the dot-mark-forming position. A minute and local marking position on the wafer peripheral surface can be determined visually/automatically, promptly and accurately, and wafer peripheral surfaces with different outer shapes can be recognized correctly.
    Type: Application
    Filed: November 26, 2002
    Publication date: June 5, 2003
    Inventor: Akihiko Souda
  • Publication number: 20020057481
    Abstract: A beam scanning type laser marking device suitable for forming minute dot marks which can ensure the visibility is provided. In this beam scanning type laser marking device which performs a marking on a surface to be marked through a convergence lens system by scanning laser beams irradiated from a laser oscillator in a given pattern using a scanning mirror, the convergence lens system is comprised of three or more convergence lenses, a focal length of an f&thgr; lens which is arranged at a position closest to the scanning mirror side is set to a distance which prevents the f&thgr; lens from interfering with a first scanning mirror which is arranged to face the f&thgr; lens in an opposed manner, and the center of the first scanning mirror is arranged to coincide with a front-side focal position of the f&thgr; lens, and the convergence lens system has lenses thereof sequentially arranged in a telecentric relationship.
    Type: Application
    Filed: October 31, 2001
    Publication date: May 16, 2002
    Inventors: Akihiko Souda, Ryuusuke Komura, Teiichirou Chiba
  • Patent number: 6144397
    Abstract: A laser marking method and an apparatus thereof which realize stamp processing with a beautiful appearance and a high precision, without reducing the manufacturing efficiency. The laser marking method comprises a step of sequentially displaying divisional patterns each corresponding to one scanning line of a first deflector, a step of sequentially scanning the divisional patterns with a laser beam from a laser oscillator by the first deflector, and a step of moving a stamp position on a work surface for every one of scanning transmission beams respectively transmitted through the divisional patterns, in a direction perpendicular to a scanning direction, by a second deflector, thereby to synthesize and stamp the divisional patterns.
    Type: Grant
    Filed: December 2, 1997
    Date of Patent: November 7, 2000
    Assignee: Komatsu Limited
    Inventors: Teiichirou Chiba, Masato Moriya, Akihiko Souda