Patents by Inventor Hiroaki Kawaguchi

Hiroaki Kawaguchi 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: 20110176249
    Abstract: A switching apparatus includes a DC voltage output unit, a switching element to supply the DC voltage to a load, a power detection unit to detect power supplied from the switching element to the load, a drive unit to control the switching element in PWM manner according to an output from the power detection unit, and a stop unit to stop the PWM control if a value of the DC voltage is lower than a first threshold value. The first threshold value is lower than a minimum operation voltage value of the power detection unit.
    Type: Application
    Filed: March 24, 2010
    Publication date: July 21, 2011
    Applicant: SANKEN ELECTRIC CO., LTD.
    Inventors: Akihiro Shinoda, Kiyokatsu Satoh, Hiroaki Kawaguchi
  • Patent number: 7525124
    Abstract: A submount for a light emitting diode and its manufacturing method, the submount including a reflector and having a compact size. The submount for the light emitting diode comprises a Si base substrate having input/output terminals formed on a front side thereof, and a Si reflector having a sloped through hole and a reflecting film formed at least on a slope defining the through hole. The Si reflector is mounted on the Si base substrate and is fixedly joined to the Si base substrate. The Si reflector and the Si base substrate are joined to each other by a thin film solder.
    Type: Grant
    Filed: September 9, 2005
    Date of Patent: April 28, 2009
    Assignees: Hitachi Kyowa Engineering Co., Ltd., Toyoda Gosei Co., Ltd.
    Inventors: Hideaki Takemori, Satoshi Higashiyama, Kenji Mori, Ryoichi Tohmon, Minoru Hirose, Hiroaki Kawaguchi
  • Patent number: 7489076
    Abstract: In a light emitting diode package or a light emitting diode, a cover body having an opening with a reflecting surface is attached on an upper portion of a base body on which a light emitting diode element is mounted. The base body is formed of alumina ceramics having a pore diameter of 0.10 to 1.25 ?m or a porosity of 10% or more, and a thermal via is formed in the base body. Accordingly, it is possible to improve luminance and heat radiating characteristics of the light emitting diode package and the light emitting diode which uses alumina ceramics.
    Type: Grant
    Filed: March 29, 2006
    Date of Patent: February 10, 2009
    Assignees: Kyoritsu Elex Co., Ltd., Toyoda Gosei Co., Ltd.
    Inventors: Kazuma Mitsuyama, Itsuki Yamamoto, Kouji Kudo, Nario Fukumoto, Hiroyuki Fukae, Kengo Nishiyama, Takumi Narita, Hiroaki Kawaguchi, Toshimasa Hayashi
  • Publication number: 20070120463
    Abstract: A phosphor plate has a wavelength conversion plate member formed of a base material with a phosphor included therein. The phosphor is operable to radiate a wavelength-converted light by being excited by a light emitted from a light emitting element. The base material further has a converter of light travel direction.
    Type: Application
    Filed: October 17, 2006
    Publication date: May 31, 2007
    Applicant: TOYODA GOSEI, CO., LTD
    Inventors: Toshimasa Hayashi, Hideaki Kato, Hiroaki Kawaguchi, Takumi Narita
  • Publication number: 20070075306
    Abstract: A light emitting device having an emitting element and an element mounting portion on which the emitting element is mounted. The element mounting portion is formed of aluminum nitride.
    Type: Application
    Filed: September 21, 2006
    Publication date: April 5, 2007
    Applicants: TOYODA GOSEI CO., LTD., LEXEDIS LIGHTING GMBH, TRIDONIC OPTOELECTRONICS GESELLSCHAFT MIT BESCHRANKTER-HAFTUNG
    Inventors: Toshimasa Hayashi, Takumi Narita, Hiroaki Kawaguchi, Peter Pachler, Christian Hochfilzer, Stefan Tasch
  • Patent number: 7180035
    Abstract: A steam generator 40? provided in a substrate processing apparatus includes a tank 301 having a hollow cylindrical member 302 formed of a composite of PTFE and PFA and a pair of side wall plates 303 connected to the opposite ends of the cylindrical member 302. The tank 301 is surrounded by a shell 305 of an aluminum alloy to prevent deformation of the tank due to internal pressure of the tank. A heater 308 is attached to the outer surfaces of the plate members 307 of the shell 305. The shell 305 restrains the tank 301 and compresses elastic sealing members 305 to sealingly engage the cylindrical member 302 and the side wall plate 303 with each other.
    Type: Grant
    Filed: June 25, 2003
    Date of Patent: February 20, 2007
    Assignee: Tokyo Electron Limited
    Inventors: Norihiro Ito, Hiroaki Kawaguchi, Yasuhiro Chouno
  • Publication number: 20060110143
    Abstract: A steam generator 40? provided in a substrate processing apparatus includes a tank 301 having a hollow cylindrical member 302 formed of a composite of PTFE and PFA and a pair of side wall plates 303 connected to the opposite ends of the cylindrical member 302. The tank 301 is surrounded by a shell 305 of an aluminum alloy to prevent deformation of the tank due to internal pressure of the tank. A heater 308 is attached to the outer surfaces of the plate members 307 of the shell 305. The shell 305 restrains the tank 301 and compresses elastic sealing members 305 to sealingly engage the cylindrical member 302 and the side wall plate 303 with each other.
    Type: Application
    Filed: June 25, 2003
    Publication date: May 25, 2006
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Norihiro Ito, Hiroaki Kawaguchi, Yasuhiro Chouno
  • Publication number: 20060054910
    Abstract: A submount for a light emitting diode and its manufacturing method, the submount including a reflector and having a compact size. The submount for the light emitting diode comprises a Si base substrate having input/output terminals formed on a front side thereof, and a Si reflector having a sloped through hole and a reflecting film formed at least on a slope defining the through hole. The Si reflector is mounted on the Si base substrate and is fixedly joined to the Si base substrate. The Si reflector and the Si base substrate are joined to each other by a thin film solder.
    Type: Application
    Filed: September 9, 2005
    Publication date: March 16, 2006
    Inventors: Hideaki Takemori, Satoshi Higashiyama, Kenji Mori, Ryoichi Tohmon, Minoru Hirose, Hiroaki Kawaguchi
  • Patent number: 6806447
    Abstract: A spatula heating apparatus with excellent usability which overcomes drawbacks inherent to conventional gas burner type and electro-thermal type apparatuses. A spatula heating apparatus for heating spatulas 9, 9a for wax molding includes a heating coil 8 for induction-heating of spatulas 9, 9a, a heating amount setting switch 5, and an inverter control circuit 21 for supplying high frequency current to the heating coil 8 to perform heating at a preset heating amount. When high frequency current is applied to the heating coil 8, the spatulas 9, 9a are heated at the preset heating amount through electromagnetic induction.
    Type: Grant
    Filed: September 27, 2002
    Date of Patent: October 19, 2004
    Assignee: Toshiba Home Technology Corporation
    Inventors: Hiroaki Kawaguchi, Osamu Hommura, Yoshinori Watanabe, Yoshio Kato
  • Publication number: 20040016750
    Abstract: A spatula heating apparatus with excellent usability which overcomes drawbacks inherent to conventional gas burner type and electro-thermal type apparatuses. A spatula heating apparatus for heating spatulas 9, 9a for wax molding includes a heating coil 8 for induction-heating of spatulas 9, 9a, a heating amount setting switch 5, and an inverter control circuit 21 for supplying high frequency current to the heating coil 8 to perform heating at a preset heating amount. When high frequency current is applied to the heating coil 8, the spatulas 9, 9a are heated at the preset heating amount through electromagnetic induction.
    Type: Application
    Filed: September 27, 2002
    Publication date: January 29, 2004
    Inventors: Hiroaki Kawaguchi, Osamu Hommura, Yoshinori Watanabe, Yoshio Kato
  • Patent number: 5745083
    Abstract: A slotted leaky waveguide array antenna comprises a flat, thin bottom plate made of a metallic material; a flat, thin slotted plate made of a metallic material, and disposed parallel with the bottom plate at a predetermined distance from the bottom plate to form a space between the slotted plate and the bottom plate, the slotted plate being formed with a plurality of slots arranged in substantially parallel rows extending in a predetermined guide axial direction; a plurality of flat, thin side walls made of a metallic material and arranged in the space so as to partition the space between the bottom plate and the slotted plate into a plurality of waveguides communicating with each other and including radiation waveguides extending in parallel in the guide axial direction, a lower surface of each of the side walls being fixed to the bottom plate and an upper surface thereof being fixed to the slotted plate; and an electrically conductive adhesive agent layer between the upper surface of each of the side walls
    Type: Grant
    Filed: April 29, 1997
    Date of Patent: April 28, 1998
    Assignees: Nippon Steel Corporation, Mikuni Corporation
    Inventors: Masahiro Uematsu, Nobuharu Takahashi, Takashi Ojima, Hiroaki Kawaguchi, Yutaka Arai, Yoshikazu Takahashi, Seiji Koyama