Patents by Inventor Youhei Ogawa

Youhei Ogawa 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: 9269903
    Abstract: [Object] To provide a method and an apparatus for manufacturing a variable resistance element by which a metal oxide layer having a desired resistivity can be precisely formed. [Solving Means] The method of manufacturing the variable resistance element according to an embodiment of the present invention includes a step of forming a first metal oxide having a first resistivity and a step of forming a second metal oxide having a second resistivity different from the first resistivity. The first metal oxide is formed on a substrate by sputtering, while sputtering a first target made of an oxide of metal, a second target made of the metal with a first power. The second metal oxide layer is formed on the first metal oxide layer by sputtering the second target with a second power different from the first power while sputtering the first target.
    Type: Grant
    Filed: June 7, 2012
    Date of Patent: February 23, 2016
    Assignee: ULVAC, INC.
    Inventors: Yutaka Nishioka, Kazumasa Horita, Natsuki Fukuda, Shin Kikuchi, Youhei Ogawa, Koukou Suu
  • Publication number: 20140102879
    Abstract: [Object] To provide a method and an apparatus for manufacturing a variable resistance element by which a metal oxide layer having a desired resistivity can be precisely formed. [Solving Means] The method of manufacturing the variable resistance element according to an embodiment of the present invention includes a step of forming a first metal oxide having a first resistivity and a step of forming a second metal oxide having a second resistivity different from the first resistivity. The first metal oxide is formed on a substrate by sputtering, while sputtering a first target made of an oxide of metal, a second target made of the metal with a first power. The second metal oxide layer is formed on the first metal oxide layer by sputtering the second target with a second power different from the first power while sputtering the first target.
    Type: Application
    Filed: June 7, 2012
    Publication date: April 17, 2014
    Applicant: ULVAC, INC.
    Inventors: Yutaka Nishioka, Kazumasa Horita, Natsuki Fukuda, Shin Kikuchi, Youhei Ogawa, Koukou Suu
  • Patent number: 8696049
    Abstract: A vehicle body structure includes a cowl extending in a vehicle transverse direction at an upper rear section of an engine compartment, an air inlet to introduce outside air into a vehicle cabin from the cowl, a fluid discharge channel provided at the bottom of the cowl, the fluid discharge channel inclined to guide fluid entering the cowl to a drain opening disposed at a transverse end of the cowl, a one-way valve disposed inside the cowl at a position corresponding to the drain opening, the one-way valve including a flapper operable to open and close the drain opening in response to a differential pressure generated when air flows through the air inlet and a frame comprising a valve opening corresponding to the drain opening, wherein the one-way valve covers the drain opening.
    Type: Grant
    Filed: March 25, 2008
    Date of Patent: April 15, 2014
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Katsuya Hagino, Youhei Ogawa, Michio Kudou
  • Patent number: 8668245
    Abstract: A front underfloor structure of a vehicle (EV) includes a protruding member protruding downward from a front underfloor surface of the vehicle, and redirects a flow of traveling air that flows around a front underfloor while traveling. The protruding member is configured as a protruding member with curved surface (31) disposed at a position closer to the vehicle front than front tires (1L, 1R) and in a central portion of the front underfloor straddling a vehicle center line (CL). The protruding member with curved surface (31) has a circumference of protrusion in a vehicle longitudinal direction that is longest at the position of the vehicle center line (CL), and the circumference of protrusion in the vehicle longitudinal direction becomes gradually shorter with increasing distance from the vehicle center line (CL) on both sides in a vehicle width direction.
    Type: Grant
    Filed: April 7, 2011
    Date of Patent: March 11, 2014
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Takeshi Kakiuchi, Masahiro Ataka, Youhei Ogawa, Kazuaki Nakajima, Yuji Ishihara
  • Patent number: 8517451
    Abstract: A front underfloor structure of a vehicle includes front deflectors disposed forward of front tires, respectively. The front deflectors each include a front apex portion disposed at a position closer to the vehicle front than a leading edge surface of each of the front tires when straight, and disposed at a position closer to a vehicle center line than an inner surface of each of the front tires when straight; an outer end portion disposed at a position closer to the vehicle rear than the front apex portion, and disposed at a position outward in the vehicle width direction of the front apex portion; and a second flow redirection surface connecting the front apex portion and the outer end portion, and being configured such that, when struck by air traveling from the vehicle front, the second flow redirection surface redirects a flow of the traveling air outward in the vehicle.
    Type: Grant
    Filed: April 7, 2011
    Date of Patent: August 27, 2013
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Takeshi Kakiuchi, Masahiro Ataka, Youhei Ogawa, Kazuaki Nakajima, Yuji Ishihara
  • Publication number: 20130026783
    Abstract: A front underfloor structure of a vehicle includes front deflectors disposed forward of front tires, respectively. The front deflectors each include a front apex portion disposed at a position closer to the vehicle front than a leading edge surface of each of the front tires when straight, and disposed at a position closer to a vehicle center line than an inner surface of each of the front tires when straight; an outer end portion disposed at a position closer to the vehicle rear than the front apex portion, and disposed at a position outward in the vehicle width direction of the front apex portion; and a second flow redirection surface connecting the front apex portion and the outer end portion, and being configured such that, when struck by air traveling from the vehicle front, the second flow redirection surface redirects a flow of the traveling air outward in the vehicle.
    Type: Application
    Filed: April 7, 2011
    Publication date: January 31, 2013
    Inventors: Takeshi Kakiuchi, Masahiro Ataka, Youhei Ogawa, Kazuaki Nakajima, Yuji Ishihara
  • Publication number: 20080246311
    Abstract: A vehicle body structure includes a cowl extending in a vehicle transverse direction at an upper rear section of an engine compartment, an air inlet to introduce outside air into a vehicle cabin from the cowl, a fluid discharge channel provided at the bottom of the cowl, the fluid discharge channel inclined to guide fluid entering the cowl to a drain opening disposed at a transverse end of the cowl, a one-way valve disposed inside the cowl at a position corresponding to the drain opening, the one-way valve including a flapper operable to open and close the drain opening in response to a differential pressure generated when air flows through the air inlet and a frame comprising a valve opening corresponding to the drain opening, wherein the one-way valve covers the drain opening.
    Type: Application
    Filed: March 25, 2008
    Publication date: October 9, 2008
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Katsuya Hagino, Youhei Ogawa, Michio Kudou
  • Patent number: 5638220
    Abstract: The present invention relates to a projector using laser light, and more particularly to a ring-shaped laser spot capable of forming a projected image having a ring-shaped projected image formed from a diffraction fringe, by interposing a diaphragm between a collimator lens and a target. The collimator lens transmits laser light emitted from a laser light source to the target to form a first projected image on the target. The diaphragm shapes the laser light transmitted through the collimator lens to form a ring-shaped second projected image as a diffraction fringe on the target.
    Type: Grant
    Filed: June 21, 1995
    Date of Patent: June 10, 1997
    Assignee: Kabushiki Kaisha Topcon
    Inventors: Fumio Ohtomo, Hiroo Sugai, Youhei Ogawa, Yoshiyuki Enomoto