Patents by Inventor Yuji Abe

Yuji Abe 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: 20100129991
    Abstract: A semiconductor device and a manufacturing method thereof are provided which enable reduction and enhanced stability of contact resistance between the back surface of a nitride substrate and an electrode formed thereover. A nitride semiconductor device includes an n-type Ga—N substrate (1) over which a semiconductor element is formed, and an n-electrode (10) as a metal electrode formed over the back surface of the GaN substrate (1). A connection layer (20) is formed between the GaN substrate (1) and the n-electrode (10), and the connection layer (2) is composed of a material that is other than nitride semiconductors and that contains silicon.
    Type: Application
    Filed: December 18, 2009
    Publication date: May 27, 2010
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Katsuomi SHIOZAWA, Kyozo Kanamoto, Kazushige Kawasaki, Hitoshi Sakuma, Yuji Abe
  • Publication number: 20100095708
    Abstract: Simple and small-sized equipment which continuously afford alternate twists to an optical fiber and a method using the apparatus are provided. The equipment includes: a guide roller for causing the fiber to roll; a roller supporting member for holding the roller in a manner allowing the roller to freely turn about an axial center X; and a driving unit to cause the roller to oscillate by making the supporting member to turn about an axial center Y that is inclined relative to the axial center X. The method includes: arranging a guide roller to intersect the fiber, the roller being held by a roller supporting member to freely turn about an axial center X; oscillating the roller by driving the supporting member to revolve about the axial center Y which is inclined relative to the axis center X; and causing the fiber to roll to afford alternate twists to the fiber.
    Type: Application
    Filed: October 13, 2009
    Publication date: April 22, 2010
    Inventors: Toshimi HABASAKI, Mitsuru Takagi, Yuji Abe, Hisashi Kasai
  • Patent number: 7699960
    Abstract: Methods for producing cast-coated papers showing a reduced level of curling and reduced curling or wavy deformation caused by moisture absorption or other reasons as well as showing a high surface quality in the cast-coated surface. The steps for producing cast-coated papers include applying a coating color based on a pigment and an adhesive on one side of a base paper, and pressing/drying the coated layer in the wet state against a casting drum mirror surface, where moisture is added to the coated paper by passing it through conditioned air at a high temperature and a high humidity (for 20 seconds or more) after pressing/drying the coated layer against a casting drum.
    Type: Grant
    Filed: March 31, 2004
    Date of Patent: April 20, 2010
    Assignee: Nippon Paper Industries Co., Ltd.
    Inventors: Katsumasa Ono, Hidenobu Todoroki, Yuji Abe
  • Patent number: 7683398
    Abstract: A semiconductor device and a manufacturing method thereof are provided which enable reduction and enhanced stability of contact resistance between the back surface of a nitride substrate and an electrode formed thereover. A nitride semiconductor device includes an n-type GaN substrate (1) over which a semiconductor element is formed, and an n-electrode (10) as a metal electrode formed over the back surface of the GaN substrate (1). A connection layer (20) is formed between the GaN substrate (1) and the n-electrode (10), and the connection layer (20) is composed of a material that is other than nitride semiconductors and that contains silicon.
    Type: Grant
    Filed: March 2, 2007
    Date of Patent: March 23, 2010
    Assignee: Mitsubishi Electric Corporation
    Inventors: Katsuomi Shiozawa, Kyozo Kanamoto, Kazushige Kawasaki, Hitoshi Sakuma, Yuji Abe
  • Patent number: 7529484
    Abstract: An optical triplexer transceiver that utilizes parallel signal detection for use in broadband passive optical networks (B-PONs). The triplexer transceiver includes an optical filter comprising a first port coupled to a laser for receiving upstream optical data signals, a second port for passing the upstream optical data signals to a network, and for receiving combined downstream optical data and video signals from the network, the video signals modulated by subcarrier modulation (SCM), and a third port for communicating the combined downstream optical data and video signals to a photodetector constructed and arranged for simultaneously receiving the combined downstream optical data and video signals and converting the optical data and video signals to electrical signals. A plurality of filters are coupled to the photodetector for separating the combined downstream data and video signals, including a low-pass filter for passing the downstream data signals, and a band-pass filter for passing the video signals.
    Type: Grant
    Filed: March 2, 2006
    Date of Patent: May 5, 2009
    Assignee: NEC Laboratories America, Inc.
    Inventors: Lei Xu, Lei Zong, Philip Nan Ji, Ting Wang, Yuji Abe
  • Publication number: 20090109212
    Abstract: A display device of the present invention includes a display unit and a display control unit. The display unit is configured to be installed in an electronic apparatus. The display unit is configured to display electrically an image. The display unit is configured to maintain display of the image even if a voltage application is stopped. The display control unit is configured to control the display unit to display an image as an emblem.
    Type: Application
    Filed: October 28, 2008
    Publication date: April 30, 2009
    Applicant: KYOCERA MITA CORPORATION
    Inventors: Hiroshi KINOSHITA, Shinzo Okajima, Tadakazu Ogiri, Yuji Abe, Shuji Fujisawa
  • Publication number: 20090088442
    Abstract: The present invention provides a pharmaceutical agent for the treatment and/or prophylaxis of abnormal blood glucose and lipid metabolism associated with eating, for which a sufficient treatment method or a therapeutic drug has not been found.
    Type: Application
    Filed: April 26, 2006
    Publication date: April 2, 2009
    Applicant: MITSUBISHI TANABE PHARMA CORPORATION
    Inventors: Yuji Abe, Aki Kusunoki, Yoshiharu Hayashi, Fumihiko Akahoshi
  • Publication number: 20090082256
    Abstract: A concomitant agent to be used simultaneously or separately, comprising a combination of (a) 3-{(2S,4S)-4-[4-(3-methyl-1-phenyl-1H-pyrazol-5-yl)piperazin-1-yl]pyrrolidin-2-ylcarbonyl}thiazolidine, a salt of the compound with an organic or inorganic and mono- or di-basic acid or a solvate thereof, and (b) at least one kind of active ingredient selected from the group consisting of an active ingredient of a pharmaceutical agent selected from (i) an antidiabetic drug, (ii) a lipid lowering drug, (iii) an antihypertensive drug, (iv) a therapeutic drug for diabetic complications, (v) an antiobesity drug, (vi) an antiplatelet drug and (vii) an anticoagulant, a pharmaceutically acceptable salt thereof and a solvate thereof.
    Type: Application
    Filed: June 2, 2006
    Publication date: March 26, 2009
    Applicant: MITSUBISHI TANABE PHARMA CORPORATION
    Inventors: Yuji Abe, Jun Anabuki, Fumihiko Akahoshi
  • Publication number: 20080237639
    Abstract: The objective of the present invention is to provide a semiconductor device of a hetero-junction field effect transistor that is capable of obtaining a high output and a high breakdown voltage and a manufacturing method of the same. The present invention is a semiconductor device of a hetero-junction field effect transistor provided with an AlxGa1-xN channel layer with a composition ratio of Al being x (0<x<1) formed on a substrate, an AlyGa1-yN barrier layer with a composition of Al being y (0<y?1) formed on the channel layer, and source/drain electrodes and a gate electrode formed on the barrier layer, wherein the composition ratio y is larger than the composition ratio x.
    Type: Application
    Filed: March 25, 2008
    Publication date: October 2, 2008
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Takuma NANJO, Muneyoshi Suita, Yuji Abe, Toshiyuki Oishi, Yasunori Tokuda
  • Publication number: 20080211062
    Abstract: A semiconductor device and a manufacturing method thereof are provided which enable reduction and enhanced stability of contact resistance between the back surface of a nitride substrate and an electrode formed thereover. A nitride semiconductor device includes an n-type GaN substrate (1) over which a semiconductor element is formed, and an n-electrode (10) as a metal electrode formed over the back surface of the GaN substrate (1). A connection layer (20) is formed between the GaN substrate (1) and the n-electrode (10), and the connection layer (20) is composed of a material that is other than nitride semiconductors and that contains silicon.
    Type: Application
    Filed: March 2, 2007
    Publication date: September 4, 2008
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Katsuomi SHIOZAWA, Kyozo Kanamoto, Kazushige Kawasaki, Hitoshi Sakuma, Yuji Abe
  • Patent number: 7393481
    Abstract: Disclosed is a method for electric clamping, which performs a clamping process in parallel with a core-drawing-in process, avoiding damages of molds and core mechanisms and enabling secure clamping.
    Type: Grant
    Filed: April 7, 2006
    Date of Patent: July 1, 2008
    Assignee: Toshiba Kikai Kabushiki Kaisha
    Inventors: Yuji Abe, Shinya Itani
  • Patent number: 7378351
    Abstract: A nitride semiconductor device is manufactured by the step of forming a nitride semiconductor layer form on a GaN substrate main surface, the step of polishing a back surface of the GaN substrate formed with the above-mentioned nitride semiconductor layer, the step of dry etching the back surface of the GaN substrate subjected to the above-mentioned polishing by using a gas mixture of chlorine and oxygen, and the step of forming an n-type electrode on the back surface of the GaN substrate subjected to the above-mentioned dry etching.
    Type: Grant
    Filed: June 3, 2005
    Date of Patent: May 27, 2008
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Katsuomi Shiozawa, Toshiyuki Oishi, Kazushige Kawasaki, Zempei Kawazu, Yuji Abe
  • Publication number: 20070133987
    Abstract: An optical triplexer transceiver that utilizes parallel signal detection for use in broadband passive optical networks (B-PONs). The triplexer transceiver includes an optical filter comprising a first port coupled to a laser for receiving upstream optical data signals, a second port for passing the upstream optical data signals to a network, and for receiving combined downstream optical data and video signals from the network, the video signals modulated by subcarrier modulation (SCM), and a third port for communicating the combined downstream optical data and video signals to a photodetector constructed and arranged for simultaneously receiving the combined downstream optical data and video signals and converting the optical data and video signals to electrical signals. A plurality of filters are coupled to the photodetector for separating the combined downstream data and video signals, including a low-pass filter for passing the downstream data signals, and a band-pass filter for passing the video signals.
    Type: Application
    Filed: March 2, 2006
    Publication date: June 14, 2007
    Applicants: NEC LABORATORIES AMERICA, INC., NEC CORPORATION
    Inventors: Lei Xu, Lei Zong, Philip Ji, Ting Wang, Yuji Abe
  • Publication number: 20070116468
    Abstract: A tunable asymmetric interleaver constructed from two symmetric interleavers in series, wherein either or both of the individual symmetric interleavers exhibit a wavelength shifting ability. Advantageously, tunable asymmetric interleavers so constructed provide continuous tunable interleaving ratios from 0:100 to 50:50 to 100:0 and provide attractive upgrade paths for existing and future DWDM networks and applications.
    Type: Application
    Filed: October 18, 2006
    Publication date: May 24, 2007
    Applicant: NEC LABORATORIES AMERICA
    Inventors: Philip Nan JI, Ting WANG, Arthur DOGARIU, Lei ZHONG, Osamu MATSUDA, Yuji ABE
  • Publication number: 20060254735
    Abstract: Processes for producing cast-coated papers showing a reduced level of curling after the preparation of the cast-coated papers and reduced curling or wavy deformation caused by moisture absorption or other reasons as well as showing a high surface quality in the cast-coated surface are provided. Thus, processes for producing cast-coated papers comprising the steps of applying a coating color based on a pigment and an adhesive on one side of a base paper, and pressing/drying the coated layer in the wet state against a casting drum mirror surface, wherein moisture is added to the coated paper by passing it through air at a high temperature and a high humidity (for 20 seconds or more) after pressing/drying the coated layer against a casting drum, as well as apparatuses therefor are provided.
    Type: Application
    Filed: March 31, 2004
    Publication date: November 16, 2006
    Inventors: Katsumasa Ono, Hidanobu Todoroki, Yuji Abe
  • Publication number: 20060228443
    Abstract: Disclosed is a method for electric clamping, which performs a clamping process in parallel with a core-drawing-in process, avoiding damages of molds and core mechanisms and enabling secure clamping.
    Type: Application
    Filed: April 7, 2006
    Publication date: October 12, 2006
    Applicant: Toshiba Kikai Kabushiki Kaisha
    Inventors: Yuji Abe, Shinya Itani
  • Publication number: 20060108596
    Abstract: A P-type electrode material is provided on a top surface of a P-type contact layer. The P-type electrode material is formed with an AuGa film, an Au film, a Pt film, and an Au film. The AuGa film is provided on the P-type contact layer. The Au film is provided on the AuGa film. The Pt film is provided on the Au film. The Au film is provided on the Pt film. With this, a nitride semiconductor device having a P-type electrode which can decrease a contact resistance between a P-type contact layer and the P-type electrode is obtained.
    Type: Application
    Filed: November 16, 2005
    Publication date: May 25, 2006
    Applicant: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Katsuomi Shiozawa, Toshiyuki Oishi, Kazushige Kawasaki, Yuji Abe
  • Patent number: D601688
    Type: Grant
    Filed: February 24, 2009
    Date of Patent: October 6, 2009
    Assignee: Sumitomo Metal Industries, Ltd.
    Inventors: Yuji Abe, Tomio Yoshino
  • Patent number: D615182
    Type: Grant
    Filed: February 26, 2009
    Date of Patent: May 4, 2010
    Assignee: S{dot over (u)}mitomo Metal Industries, Ltd.
    Inventors: Yuji Abe, Tomio Yoshino
  • Patent number: D615642
    Type: Grant
    Filed: December 8, 2009
    Date of Patent: May 11, 2010
    Assignee: Sumitomo Metal Industries, Ltd.
    Inventors: Yuji Abe, Tomio Yoshino