Patents by Inventor Akira Iizuka

Akira Iizuka 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).

  • Patent number: 10437142
    Abstract: A support frame for a pellicle includes a frame body made of an aluminum alloy. The frame body has: a top surface onto which a pellicle film is bonded; and an underside surface onto which a transparent substrate is bonded. A material of which the frame body is made has a Young's modulus larger than that of which the transparent substrate is made. The structure described above makes it possible to reduce deformation of the transparent substrate.
    Type: Grant
    Filed: March 2, 2016
    Date of Patent: October 8, 2019
    Assignee: NIPPON LIGHT METAL COMPANY, LTD.
    Inventors: Akira Iizuka, Koichi Nakano, Hayato Kiyomi, Kazuhiro Oda, Tomohiro Isobe
  • Patent number: 10415527
    Abstract: Recent exhaust gas regulation requires reduction of an amount and quantity of particulate matter included in an exhaust gas, and a normal maximum fuel pressure may be increased to approximately 35 MP. When the normal maximum fuel pressure is 35 MPa, a fuel injection valve is required to work for example at a pressure up to 45 MPa. In such a condition, a fluid force may exceed a valve opening force depending on a seat diameter, and a needle valve cannot be kept open and closed, when opening thereof is required.
    Type: Grant
    Filed: January 12, 2016
    Date of Patent: September 17, 2019
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Takao Miyake, Atsushi Nakai, Kiyotaka Ogura, Akira Iizuka
  • Publication number: 20190257264
    Abstract: A fuel injection device including a valve body having an injection hole-formed part having a plurality of injection holes on the leading end side of the valve body. An injection hole comprises a crossing angle, ?1, between a central axis of the injection hole-formed part and an injection hole axis, and another injection hole comprises a crossing angle, ?2, between the central axis and another injection hole axis. ?2 is larger than ?1. The injection holes are formed such that a distance between the central axis and an inlet surface center of the injection hole is longer than a distance between the central axis and another inlet surface center of the another injection hole. A straight line beyond an outlet surface in the injection hole axis does not intersect with another straight line beyond another outlet surface in the another injection hole axis.
    Type: Application
    Filed: November 21, 2017
    Publication date: August 22, 2019
    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Akira IIZUKA, Tohru ISHIKAWA, Takao MIYAKE, Kazuki YOSHIMURA
  • Patent number: 10384163
    Abstract: The object of the present invention is to provide an exhaust gas purifying catalyst that can achieve high purification performance while suppressing H2S emissions. The object is solved by an exhaust gas purifying catalyst in which the lower layer of the catalyst coating layer comprises a ceria-zirconia composite oxide having a pyrochlore-type ordered array structure, in which the ceria-zirconia composite oxide contains at least one additional element selected from the group consisting of praseodymium, lanthanum, and yttrium at 0.5 to 5.0 mol % in relation to the total cation amount, and the molar ratio of (cerium+additional element):(zirconium) is within the range from 43:57 to 48:52.
    Type: Grant
    Filed: December 11, 2015
    Date of Patent: August 20, 2019
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, CATALER CORPORATION
    Inventors: Isao Chinzei, Hiromasa Suzuki, Takeru Yoshida, Masahide Miura, Yuki Aoki, Mitsuyoshi Okada, Toshitaka Tanabe, Akihiko Suda, Yoshinori Saito, Hirotaka Ori, Kosuke Iizuka, Akira Morikawa
  • Patent number: 10378496
    Abstract: An object of the present invention is to provide a fuel injection valve configured to suppress bouncing of a valve element that is caused as a result of the valve element being rendered elastic when the valve element collides with a valve seat. The fuel injection valve of the present invention includes the valve element configured to come into contact with the valve seat for closing an injection hole and to separate from the valve seat for unclosing the injection hole, an elastic member urging the valve element toward the valve seat, a movable iron core disposed to be in and out of contact with the valve element, a fixed iron core disposed to be opposed to the movable iron core, and a coil configured to generate electromagnetic force for moving the movable iron core.
    Type: Grant
    Filed: January 8, 2016
    Date of Patent: August 13, 2019
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Akiyasu Miyamoto, Motoyuki Abe, Yoshihito Yasukawa, Takao Miyake, Akira Iizuka, Kiyotaka Ogura
  • Publication number: 20190242845
    Abstract: A sensor device (30) includes an oscillation unit formed in a semiconductor integrated circuit (40) and having an oscillation frequency which changes in accordance with a physical property of an analyte which comes into contact with the oscillation unit; an oscillation frequency detection unit configured to detect the oscillation frequency, and one or more electrode pairs (36) configured to move a specific analyte dispersed in liquid to an arbitrary location.
    Type: Application
    Filed: May 31, 2017
    Publication date: August 8, 2019
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: AKIRA SAITO, DAIKI SATO, TAKESHI MITSUNAKA, KUNIHIKO IIZUKA
  • Publication number: 20190211791
    Abstract: Provided is a structure capable of reducing dribbling of fuel generated when a valve body is closed. In order to achieve the above object, a fuel injection device includes: a valve body; and a seat member having a seat portion on which the valve body is seated and having a fuel injection hole formed on a downstream side of the seat portion. The seat member is formed such that a gap between the seat member and the opposing valve body in the whole region on the downstream side of the fuel injection hole is smaller than a diameter of the fuel injection hole.
    Type: Application
    Filed: April 13, 2017
    Publication date: July 11, 2019
    Applicant: Hitachi Automotive Systems, Ltd.
    Inventors: Yoshihito YASUKAWA, Kiyotaka OGURA, Takao MIYAKE, Akira IIZUKA, Kazuki YOSHIMURA, Akiyasu MIYAMOTO
  • Publication number: 20190169349
    Abstract: A thermosetting polyurethane composition is provided for forming a belt to be used in an environment where the belt comes into contact with an oil including an unsaturated fatty acid and with a metal. The thermosetting polyurethane composition includes an isocyanate-group-terminated urethane prepolymer (A) having a polyester unit and/or a polycarbonate unit, a hydrolysis inhibitor (B), and a hardener (C).
    Type: Application
    Filed: July 27, 2017
    Publication date: June 6, 2019
    Applicant: Mitsuboshi Belting Ltd.
    Inventors: Kentaro Arimachi, Shingo Iizuka, Akira Takenaka, Takahide Okazawa
  • Publication number: 20190003436
    Abstract: An object of the present invention is to provide a fuel injection device in which variations in an injection flow rate for each injection is suppressed and an injection amount is stabilized. The fuel injection device according to the present invention includes: a valve element that is seated on or unseated from a valve seat; a plurality of guide parts (302a, 302b, 302c) that slidably guide the valve element; and flow paths (306a, 306b, 306c) sandwiched between the guide parts in a circumferential direction. In the fuel injection device, one guide part (302a) among the plurality of guide parts is formed to have a longer circumferential length than that of other guide parts (302b, 302c).
    Type: Application
    Filed: November 14, 2016
    Publication date: January 3, 2019
    Applicant: Hitachi Automotive Systems, Ltd.
    Inventors: Yoshihito YASUKAWA, Kiyotaka OGURA, Takao MIYAKE, Akira IIZUKA, Akiyasu MIYAMOTO, Kazuki YOSHIMURA
  • Publication number: 20180149965
    Abstract: A support frame for a pellicle includes a frame body made of an aluminum alloy. The frame body has: a top surface onto which a pellicle film is bonded; and an underside surface onto which a transparent substrate is bonded. A material of which the frame body is made has a Young's modulus larger than that of which the transparent substrate is made. The structure described above makes it possible to reduce deformation of the transparent substrate.
    Type: Application
    Filed: March 2, 2016
    Publication date: May 31, 2018
    Inventors: Akira IIZUKA, Koichi NAKANO, Hayato KIYOMI, Kazuhiro ODA, Tomohiro ISOBE
  • Publication number: 20180010564
    Abstract: Recent exhaust gas regulation requires reduction of an amount and quantity of particulate matter included in an exhaust gas, and a normal maximum fuel pressure may be increased to approximately 35 MP. When the normal maximum fuel pressure is 35 MPa, a fuel injection valve is required to work for example at a pressure up to 45 MPa. In such a condition, a fluid force may exceed a valve opening force depending on a seat diameter, and a needle valve cannot be kept open and closed, when opening thereof is required.
    Type: Application
    Filed: January 12, 2016
    Publication date: January 11, 2018
    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Takao MIYAKE, Atsushi NAKAI, Kiyotaka OGURA, Akira IIZUKA
  • Publication number: 20170370337
    Abstract: An object of the present invention is to provide a fuel injection valve configured to suppress bouncing of a valve element that is caused as a result of the valve element being rendered elastic when the valve element collides with a valve seat. The fuel injection valve of the present invention includes the valve element configured to come into contact with the valve seat for closing an injection hole and to separate from the valve seat for unclosing the injection hole, an elastic member urging the valve element toward the valve seat, a movable iron core disposed to be in and out of contact with the valve element, a fixed iron core disposed to be opposed to the movable iron core, and a coil configured to generate electromagnetic force for moving the movable iron core.
    Type: Application
    Filed: January 8, 2016
    Publication date: December 28, 2017
    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Akiyasu MIYAMOTO, Motoyuki ABE, Yoshihito YASUKAWA, Takao MIYAKE, Akira IIZUKA, Kiyotaka OGURA
  • Patent number: 9598790
    Abstract: Provided is a pellicle frame that can prevent generation of haze and reduces a surface glittering defect under irradiation with collected light, and a method of manufacturing the same. The pellicle frame is obtained by using an aluminum frame material having a structure satisfying predetermined conditions on the circle-equivalent diameters of a Mg2Si crystallized product, an AlCuMg crystallized product, an Al—Fe-based crystallized product (AlmFe or Al7Cu2Fe), and an Al2CuMg crystallized product and on the area ratios of those crystallized products each having a circle-equivalent diameter of 1 ?m or more, and in addition, subjecting the aluminum frame material to anodic oxidation processing using an alkaline electrolytic solution containing as an electrolyte a predetermined organic acid salt.
    Type: Grant
    Filed: November 27, 2013
    Date of Patent: March 21, 2017
    Assignee: NIPPON LIGHT METAL COMPANY, LTD.
    Inventors: Yoshihiro Taguchi, Takayuki Yamaguchi, Shingo Koizumi, Akira Iizuka, Kiyokazu Koga, Masato Yatsukura
  • Patent number: 9599889
    Abstract: Provided are a method of manufacturing a support frame for a pellicle, capable of forming a sufficiently blackened anodic oxide film through anodic oxidation treatment and providing a support frame for a pellicle industrially inexpensively with ease, a support frame for a pellicle obtained by the method, and a pellicle. Specifically, provided are a method of manufacturing a support frame for a pellicle to be used as a pellicle including an optical thin film, the method including: annealing an aluminum material formed of an Al—Zn—Mg based aluminum alloy; and subjecting the aluminum material to anodic oxidation treatment in an alkaline solution to form an anodic oxide film having a lightness index L* value of 40 or less, a support frame for a pellicle obtained by the method, and a pellicle including the support frame for a pellicle and an optical thin film.
    Type: Grant
    Filed: July 11, 2013
    Date of Patent: March 21, 2017
    Assignee: NIPPON LIGHT METAL COMPANY, LTD.
    Inventors: Takayuki Yamaguchi, Yoshihiro Taguchi, Akira Iizuka
  • Publication number: 20150316842
    Abstract: Provided is a pellicle frame that can prevent generation of haze and reduces a surface glittering defect under irradiation with collected light, and a method of manufacturing the same. The pellicle frame is obtained by using an aluminum frame material having a structure satisfying predetermined conditions on the circle-equivalent diameters of a Mg2Si crystallized product, an AlCuMg crystallized product, an Al—Fe-based crystallized product (AlmFe or Al7Cu2Fe), and an Al2CuMg crystallized product and on the area ratios of those crystallized products each having a circle-equivalent diameter of 1 ?m or more, and in addition, subjecting the aluminum frame material to anodic oxidation processing using an alkaline electrolytic solution containing as an electrolyte a predetermined organic acid salt.
    Type: Application
    Filed: November 27, 2013
    Publication date: November 5, 2015
    Applicant: NIPPON LIGHT METAL COMPANY, LTD.
    Inventors: Yoshihiro TAGUCHI, Takayuki YAMAGUCHI, Shingo KOIZUMI, Akira IIZUKA, Kiyokazu KOGA, Masato YATSUKURA
  • Publication number: 20150205195
    Abstract: Provided are a method of manufacturing a support frame for a pellicle, capable of forming a sufficiently blackened anodic oxide film through anodic oxidation treatment and providing a support frame for a pellicle industrially inexpensively with ease, a support frame for a pellicle obtained by the method, and a pellicle. Specifically, provided are a method of manufacturing a support frame for a pellicle to be used as a pellicle including an optical thin film, the method including: annealing an aluminum material formed of an Al—Zn—Mg based aluminum alloy; and subjecting the aluminum material to anodic oxidation treatment in an alkaline solution to form an anodic oxide film having a lightness index L* value of 40 or less, a support frame for a pellicle obtained by the method, and a pellicle including the support frame for a pellicle and an optical thin film.
    Type: Application
    Filed: July 11, 2013
    Publication date: July 23, 2015
    Applicant: NIPPON LIGHT METAL COMPANY, LTD.
    Inventors: Takayuki Yamaguchi, Yoshihiro Taguchi, Akira Iizuka
  • Patent number: 7896200
    Abstract: It is an object of the invention to provide a liquid substance supplying device exhibiting high operability in handling a container having a large capacity. A liquid substance supplying device for supplying a liquid substance reserved in a vertically elongated container 30 has a configuration in which a bottom part of a container holder 15 for holding the container inserted through an insertion hole provided on a top side of a holder main body 16 is pivoted on a base bracket 14 with a hinge portion 19 to support the container holder 15 such that it can assume either upright attitude or tilted attitude and in which the container holder 15 is fixed in the upright attitude by a holder fixing mechanism 20. As a result, the container holder 15 can be mounted and removed to and from the holder main body 16 in the tilted state at the time of a container replacing operation, which allows high operability to be maintained even in handling a large-capacity container having a great height dimension.
    Type: Grant
    Filed: June 8, 2006
    Date of Patent: March 1, 2011
    Assignee: Panasonic Corporation
    Inventors: Hachiro Nakatsuji, Akira Iizuka, Akira Kabeshita
  • Patent number: 7885718
    Abstract: A service receiving method for receiving a component library generated from mounted component data, including component size and mounting conditions, via a communication system that includes the Internet. The method includes the service provider receiving mounted component data having mounting conditions actually realized by a fabrication of non-defective products. The method also includes the service provider deriving a component library from a mounted component database.
    Type: Grant
    Filed: April 9, 2009
    Date of Patent: February 8, 2011
    Assignee: Panasonic Corporation
    Inventors: Toshio Yano, Hiroshi Okamura, Yoshihiko Misawa, Yoshinori Isobata, Ken Takahashi, Masuo Masui, Eigo Sarashina, Akira Iizuka
  • Patent number: 7823378
    Abstract: A method (1) of controlling an exhaust gas purification system has a DPF device (12), where a regeneration control means (35C) has a forced regeneration mode and an arbitrary regeneration mode. In the forced regeneration mode, when it is determined by a regeneration time determination means (34C) that it is time to regenerate a filter (12b) and the temperature of exhaust gas is low, the exhaust gas temperature is raised by an exhaust gas temperature raising means (351C) to forcibly regenerate the filter (12b). In the arbitrary regeneration mode, the filter is arbitrary regenerated based on the result of detection by a collection amount detection means (32C). While the temperature of exhaust gas is raised in the arbitrary regeneration mode by the exhaust gas temperature raising means (351C), operation of a compressor (41) of a vehicle air conditioner is stopped.
    Type: Grant
    Filed: April 24, 2006
    Date of Patent: November 2, 2010
    Assignee: Isuzu Motors Limited
    Inventors: Akira Iizuka, Naomi Uchida, Minoru Tsuchida, Tatsuo Mashiko
  • Publication number: 20090259333
    Abstract: A service receiving method for receiving a component library generated from mounted component data, including component size and mounting conditions, via a communication system that includes the Internet. The method includes the service provider receiving mounted component data having mounting conditions actually realized by a fabrication of non-defective products. The method also includes the service provider deriving a component library from a mounted component database.
    Type: Application
    Filed: April 9, 2009
    Publication date: October 15, 2009
    Applicant: PANASONIC CORPORATION
    Inventors: Toshio YANO, Hiroshi OKAMURA, Yoshihiko MISAWA, Yoshinori ISOBATA, Ken TAKAHASHI, Masuo MASUI, Eigo SARASHINA, Akira IIZUKA