Patents by Inventor Akira Itoh

Akira Itoh 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: 20150246402
    Abstract: In an electrical discharge machine that applies a voltage between an electrode and a workpiece to generate electrical discharge, an electrode holder holds the electrode. An ultrasonic motor has a fingertip that comes into contact with electrode holder, and moves electrode holder in a driving direction by moving the fingertip in an annular manner at an ultrasonic-range frequency. A roller bearing guides the movement of the electrode holder in the driving direction. A control circuit controls a position of the electrode in the driving direction by driving the ultrasonic motor, and moves the electrode holder based on an abnormality occurring in resistance against the movement of the electrode holder in the driving direction such that the electrode holder is moved by a movement distance equivalent to when the largest roller element among a plurality of roller elements of the roller bearing rolls and rotates once without sliding or longer.
    Type: Application
    Filed: March 2, 2015
    Publication date: September 3, 2015
    Inventors: Kouichirou YASUDA, Yasuji INOBE, Akira ITOH, Nobuhiko NAGAI, Tetsuji YAMAGUCHI, Hiroyuki OOTANI
  • Patent number: 8950213
    Abstract: A receiver includes a cylindrical main tank; a cylindrical internal thread component having an internal thread; a cap having a male thread threaded with the internal thread; a sealing attached to the cap; and a filter portion arranged in the cap. The internal thread component is coaxially arranged to an inner circumference face of the tank. The filter portion includes an internal passage extending inside of the cap, and a net that collects a foreign matter contained in refrigerant flowing through the internal passage.
    Type: Grant
    Filed: November 1, 2011
    Date of Patent: February 10, 2015
    Assignee: Denso Corporation
    Inventors: Takuya Mitsuhashi, Ken Muto, Akira Itoh, Kazuhisa Naito, Wei Chen, Hiroyasu Shimanuki
  • Patent number: 8525064
    Abstract: An electric discharge machine to process a work piece includes a plurality of electrodes, and a plurality of discharge power supply units. The plurality of electrodes generate a plurality of discharges with the work piece, respectively. The plurality of discharge power supply units apply voltages for the plurality of electrodes, respectively and independently.
    Type: Grant
    Filed: November 10, 2010
    Date of Patent: September 3, 2013
    Assignee: Denso Corporation
    Inventors: Akira Itoh, Yasuji Inobe, Hiroshi Adachi, Takeshi Oochi, Kazuhisa Ikuta, Michio Kameyama
  • Patent number: 8448698
    Abstract: A tube for a heat exchanger includes a first and a second plate portions disposed opposite each other. At least the first plate portion includes a base plate portion bonded to the second plate portion by brazing and multiple protruding portions, which protrude from the base plate portion toward an opposite side from the second plate portion, having a first and a second protruding portions. A protruding dimension of the first protruding portion is larger than that of the second protruding portion. The base plate portion and the protruding portions extend straightly in a tube longitudinal direction. The second plate portion and the protruding portions have a clearance therebetween defining an internal fluid passage. The second protruding portion and the base plate portion are configured to define an external fluid passage extending in a tube width direction.
    Type: Grant
    Filed: January 7, 2009
    Date of Patent: May 28, 2013
    Assignee: Denso Corporation
    Inventors: Hiroyuki Genda, Ryoichi Sanada, Akira Itoh, Masahiro Omae
  • Patent number: 8215127
    Abstract: An ornamental diamond is provided as an extremely bright diamond with numerous reflection patterns when viewed from above its table facet and crown facets. The diamond has the same crown as the round brilliant cut and its pavilion consists of a first pavilion and a second pavilion separated by a horizontal division plane. The second pavilion is an octagonal pyramid and its side faces form second pavilion main facets. The first pavilion is a hexadecagonal frustum with a top face on the horizontal division plane and its side faces form first lower girdle facets. First pavilion main facets extend from the girdle and between the first lower girdle facets, into between the second pavilion main facets. The ornamental diamond having the two-stage pavilion is much more brilliant than and has twice as many reflection patterns as the conventional round brilliant cut.
    Type: Grant
    Filed: January 9, 2008
    Date of Patent: July 10, 2012
    Assignee: Hohoemi Brains, Inc.
    Inventors: Tamotsu Matsumura, Yoshinori Kawabuchi, Akira Itoh
  • Publication number: 20120103007
    Abstract: A receiver includes a cylindrical main tank; a cylindrical internal thread component having an internal thread; a cap having a male thread threaded with the internal thread; a sealing attached to the cap; and a filter portion arranged in the cap. The internal thread component is coaxially arranged to an inner circumference face of the tank. The filter portion includes an internal passage extending inside of the cap, and a net that collects a foreign matter contained in refrigerant flowing through the internal passage.
    Type: Application
    Filed: November 1, 2011
    Publication date: May 3, 2012
    Applicant: DENSO CORPORATION
    Inventors: Takuya Mitsuhashi, Ken Muto, Akira Itoh, Kazuhisa Naito, Wei Chen, Hiroyasu Shimanuki
  • Patent number: 8075706
    Abstract: A paste composition for aluminum brazing of the invention contains 40 to 65% by weight of a metal powder for brazing (a), 5 to 35% by weight of a fluoride type flux (b), 1 to 10% by weight of a methacrylic acid ester type polymer (c), and 10 to 40% by weight of an organic solvent (d); and the component (d) is a hydrocarbon type organic solvent having no aromatic ring and no hydroxyl group and the composition is in a paste-like state having a viscosity of 6,000 to 200,000 mPa·s at 23° C. and accordingly, the storage stability and applicability (practically, discharge property and pressure stability by using a dispenser) and brazing property can be improved in good balance.
    Type: Grant
    Filed: December 19, 2008
    Date of Patent: December 13, 2011
    Assignees: Harima Chemicals, Inc., Denso Corporation
    Inventors: Tomoaki Akazawa, Masaki Teruse, Ichiro Taninaka, Shoei Teshima, Kinya Yamamoto, Akira Itoh, Ken Muto
  • Publication number: 20110239705
    Abstract: The color stone 1 is formed of a material with a refractive index n of 1.55 to 2.40, and is subjected to round brilliant-cutting. The pavilion angle p and the crown angle c satisfy the correlation of, ?A(n)×p+B(n)+K1?c??A(n)×p+B(n)+K2 where, A(n) is represented by A(n)=?1.122×n5+9.14×n4?26.752×n3+32.982×n2?12.842×n, B(n) is represented by B(n)=?22.323×n5+184.166×n4?527.616×n3+594.102×n2?128.68×n, K1 is represented by K1=+4, and K2 is represented by K2=?4.
    Type: Application
    Filed: September 24, 2009
    Publication date: October 6, 2011
    Applicant: HOHOEMI BRAINS, INC.
    Inventors: Tamotsu Matsumura, Yoshinori Kawabuchi, Akira Itoh
  • Publication number: 20110186551
    Abstract: An electric discharge machine to process a work piece includes a plurality of electrodes, and a plurality of discharge power supply units. The plurality of electrodes generate a plurality of discharges with the work piece, respectively. The plurality of discharge power supply units apply voltages for the plurality of electrodes, respectively and independently.
    Type: Application
    Filed: November 10, 2010
    Publication date: August 4, 2011
    Applicant: DENSO CORPORATION
    Inventors: Akira ITOH, Yasuji INOBE, Hiroshi ADACHI, Takeshi OOCHI, Kazuhisa IKUTA, Michio KAMEYAMA
  • Publication number: 20110016918
    Abstract: An ornamental diamond is provided as an extremely bright diamond with numerous reflection patterns when viewed from above its table facet and crown facets. The diamond has the same crown as the round brilliant cut and its pavilion consists of a first pavilion and a second pavilion separated by a horizontal division plane. Lower girdle facets and pavilion main facets are bent by the horizontal division plane between the first and second pavilions, and a first pavilion angle is larger than a second pavilion angle. The ornamental diamond having the two-stage pavilion is much more brilliant than and has twice as many reflection patterns as the conventional round brilliant cut.
    Type: Application
    Filed: January 9, 2008
    Publication date: January 27, 2011
    Applicant: Hohoemi Brains, Inc.
    Inventors: Tamotsu Matsumura, Yoshinori Kawabuchi, Akira Itoh
  • Publication number: 20100282234
    Abstract: An ornamental diamond is provided as an extremely bright diamond with numerous reflection patterns when viewed from above its table facet and crown facets. The diamond has the same crown as the round brilliant cut and its pavilion consists of a first pavilion and a second pavilion separated by a horizontal division plane. The second pavilion is an octagonal pyramid and its side faces form second pavilion main facets. The first pavilion is a hexadecagonal frustum with a top face on the horizontal division plane and its side faces form first lower girdle facets. First pavilion main facets extend from the girdle and between the first lower girdle facets, into between the second pavilion main facets. The ornamental diamond having the two-stage pavilion is much more brilliant than and has twice as many reflection patterns as the conventional round brilliant cut.
    Type: Application
    Filed: January 9, 2008
    Publication date: November 11, 2010
    Applicant: HOHOEMI BRAINS, INC.
    Inventors: Tamotsu Matsumura, Yoshinori Kawabuchi, Akira Itoh
  • Publication number: 20090183859
    Abstract: A tube for a heat exchanger includes a first and a second plate portions disposed opposite each other. At least the first plate portion includes a base plate portion bonded to the second plate portion by brazing and multiple protruding portions, which protrude from the base plate portion toward an opposite side from the second plate portion, having a first and a second protruding portions. A protruding dimension of the first protruding portion is larger than that of the second protruding portion. The base plate portion and the protruding portions extend straightly in a tube longitudinal direction. The second plate portion and the protruding portions have a clearance therebetween defining an internal fluid passage. The second protruding portion and the base plate portion are configured to define an external fluid passage extending in a tube width direction.
    Type: Application
    Filed: January 7, 2009
    Publication date: July 23, 2009
    Applicant: DENSO CORPORATION
    Inventors: Hiroyuki Genda, Ryoichi Sanada, Akira Itoh, Masahiro Omae
  • Publication number: 20090165893
    Abstract: A paste composition for aluminum brazing of the invention contains 40 to 65% by weight of a metal powder for brazing (a), 5 to 35% by weight of a fluoride type flux (b), 1 to 10% by weight of a methacrylic acid ester type polymer (c), and 10 to 40% by weight of an organic solvent (d); and the component (d) is a hydrocarbon type organic solvent having no aromatic ring and no hydroxyl group and the composition is in a paste-like state having a viscosity of 6,000 to 200,000 mPa·s at 23° C. and accordingly, the storage stability and applicability (practically, discharge property and pressure stability by using a dispenser) and brazing property can be improved in good balance.
    Type: Application
    Filed: December 19, 2008
    Publication date: July 2, 2009
    Applicants: Harima Chemicals, Inc., DENSO CORPORATION
    Inventors: Tomoaki AKAZAWA, Masaki Teruse, Ichiro Taninaka, Shoei Teshima, Kinya Yamamoto, Akira Itoh, Ken Muto
  • Publication number: 20090085238
    Abstract: By judging mold touch with good accuracy, a toggle support is stopped at a desired position with good accuracy. A toggle support (15) is moved forward in a mold closing direction and a detection value from a mold-clamping force sensor is monitored. When the detection value reaches a threshold value, the toggle support (15) is stopped. The mold-clamping force sensor is a tie-bar strain sensor (18) detecting strain of a tie-bar, a pressure sensor (40) detecting pressing force applied to a movable platen (13A), or a strain sensor (41) detecting strain of a component part of a toggle mechanism (20).
    Type: Application
    Filed: May 30, 2006
    Publication date: April 2, 2009
    Applicant: Sumitomo Heavy Industries, Ltd.
    Inventors: Akihisa Kobayashi, Akira Itoh
  • Patent number: 7468058
    Abstract: A suction fluid collector includes a transparent reservoir made of a resilient material with an upper opening positioned on one side of a flexible suction bag with at least one transparent side. A plate part made of a resilient material is positioned on another side of the suction bag opposite said reservoir. An urging means arranged between the reservoir and the plate part provides a force tending to expand a gap between the reservoir and the plate part. A suction tube is positioned partially inside the reservoir and extends through the suction bag.
    Type: Grant
    Filed: March 7, 2007
    Date of Patent: December 23, 2008
    Assignee: Tyco Healthcare Group LP
    Inventors: Nobuatsu Kanie, Akira Itoh, Dai Sutoh
  • Publication number: 20080260264
    Abstract: The present invention relates to a method and system for generating aesthetic characters, and to a business model for commercially developing the method and system utilizing the Internet or the like. The present invention makes it possible to synthesize a variety of image patterns with arbitrary characters by adding stroke fonts. According to a first aspect, the present invention provides a method and system for generating aesthetic characters, in which an arbitrary image pattern is selected from a pattern database, and data on arbitrary characters constituting single lines are superposed on the selected image pattern, whereby the arbitrary image patterns are processed into various characters and generating aesthetic image patterns. Thus, it is possible to provide character bodies drawn with excellent aesthetic properties that are uniquely designed for attracting public attention, such as in the television broadcasts, Internet sites, headings of journals or newspapers, advertisements, and signboards.
    Type: Application
    Filed: April 18, 2007
    Publication date: October 23, 2008
    Inventors: Kohei Miura, Kouzaburou Furukawa, Atsumu Yokoishi, Akira Itoh, Yukiko Okada, Hajime Hasegawa
  • Publication number: 20080255522
    Abstract: To provide a medical needle puller that allows an easy pulling operation as well as safety improvement. The engaging stepped part 14 was formed at the back side of the puncture part 12 in the medical needle 10 in which the connection part 13 for connecting the drainage tube 16 was formed at the rear end part and the puncture part 12 was formed at the tip part. Furthermore, the puller 20 to which the medical needle 10 is attached was provided with the needlepoint coating part 21 coating the puncture part 12 and the engaging narrow part 25 engaging the engaging stepped part 14. In addition, the puller 20 was provided with the grippers 22a, 22b for pulling out the medical needle 10 together with the puller 20 from the wound site by hand.
    Type: Application
    Filed: October 5, 2007
    Publication date: October 16, 2008
    Applicant: TYCO HEALTHCARE GROUP LP
    Inventors: Akira Itoh, Yasuyuki Baba, Masanori Makino, Kazuhiro Koike
  • Publication number: 20080211126
    Abstract: Adjusting a mold-clamping force by moving a fixing position of a toggle support (15) of a mold-clamping apparatus (10) so as to be close to a target mold-clamping force. Changing a mold protection position in accordance with an amount of movement of the toggle support (10). The adjustment of the mold-clamping force is performed based on a first mold-clamping force setting value that is acquired from a relationship between a push-in amount and a corresponding mold-clamping force that has been obtained by attaching a reference mold-to the mold-clamping apparatus (10). The adjustment of the mold-clamping force may be performed based on a difference between a mold-clamping force detection value obtained by detecting an actual mold-clamping force and the target mold-clamping force by performing mold-clamping by using the first mold-clamping force setting value.
    Type: Application
    Filed: March 14, 2006
    Publication date: September 4, 2008
    Inventors: Akihisa Kobayashi, Akira Itoh
  • Publication number: 20080053188
    Abstract: A mold-clamping force is detected based on an output from a strain detection apparatus (30) provided to a mold-clamping apparatus of a molding machine. A first output value output from the strain detection apparatus (30) is detected when the mold-clamping apparatus is in a maximum mold open state. A second output value output from the strain detection apparatus (30) is corrected based on the first output value when a mold-clamping force is generated by the mold-clamping apparatus. The mold-clamping force is acquired based on the corrected second output value. A correction is made after converting an output from the strain detection apparatus (30) into a digital value, or a strain gauge (50) is used so as to change a reference voltage supplied to a comparison amplifier of the strain gauge using the strain gauge based on the first output value.
    Type: Application
    Filed: June 20, 2006
    Publication date: March 6, 2008
    Inventor: Akira Itoh
  • Publication number: 20080000627
    Abstract: A heat exchanger has tubes for performing heat exchange between an internal fluid flowing inside of the tubes and an external fluid flowing outside of the tubes and a tank connected to the tubes. Each of the tubes has projections projecting from an outer surface thereof. The projections are arranged in a longitudinal direction of the tube such that grooves are provided between the adjacent projections as external fluid passage portions. The tank has tube insertion portions defining openings into which ends of the tubes are inserted. Each of the tube insertion portions is configured such that a perimeter surface defining the opening thereof entirely covers at least one external fluid passage portion of the tube.
    Type: Application
    Filed: June 29, 2007
    Publication date: January 3, 2008
    Applicant: DENSO Corporation
    Inventors: Kazue Noguchi, Masahiro Shimoya, Akira Itoh, Hiroyuki Genda