Patents by Inventor Shinji Abe

Shinji 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).

  • Patent number: 8019890
    Abstract: In a network switch including a user network port connectable to a user network, a plurality of down link ports each connectable to one server unit, a server unit management network port connectable to a server unit management network for managing the server unit, a store-and-forward switching unit connected to the user network port, the down link ports and the server unit management network port, and a control unit connected to the store-and-forward switching unit, when a packet that has arrived at one of the down link ports is a dynamic host configuration protocol (DHCP) packet including a network boot option, the control unit operates the store-and-forward switching unit to transmit the packet to the server unit management network port.
    Type: Grant
    Filed: September 24, 2004
    Date of Patent: September 13, 2011
    Assignee: NEC Corporation
    Inventor: Shinji Abe
  • Publication number: 20110193126
    Abstract: A semiconductor light-emitting element comprises: a semiconductor substrate; a semiconductor laminated structure including a first conductivity-type semiconductor layer, an active layer, a second conductivity-type semiconductor layer, and a contact layer that are sequentially laminated on the semiconductor substrate; a ridge portion in an upper portion of the semiconductor laminated structure; a channel portion adjoining opposite sides of the ridge portion; a terrace portion adjoining opposite sides of the channel portion and, with the channel portion, sandwiching the ridge portion; a first insulating film covering the channel portion and having openings on the ridge portion and the terrace portion; a single-layer adhesive layer on the first insulating film; a Pd electrode on the ridge portion and a part of the single-layer adhesive layer and electrically connected to the contact layer of the ridge portion; and a second insulating layer covering a portion not covered by the Pd electrode of the single-layer ad
    Type: Application
    Filed: October 26, 2010
    Publication date: August 11, 2011
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Takafumi Oka, Shinji Abe, Kazushige Kawasaki, Hitoshi Sakuma
  • Patent number: 7981704
    Abstract: After a metal cap layer is laminated on a semiconductor laminated structure, a waveguide ridge is formed, the waveguide ridge is coated with an SiO2 film, and a resist is applied; then, a resist pattern is formed, the resist pattern exposing the surface of the SiO2 film on the top of the waveguide ridge, and burying the SiO2 film in channels with a resist film having a surface higher than the surface of the metal cap layer of the waveguide ridge and lower than the surface of the SiO2 film of the waveguide ridge; the SiO2 film is removed by dry etching, using the resist pattern as a mask. The metal cap layer is removed by wet etching, and a p-GaN layer of the waveguide ridge is exposed to form the electrode layer.
    Type: Grant
    Filed: October 8, 2007
    Date of Patent: July 19, 2011
    Assignee: Mitsubishi Electric Corporation
    Inventors: Shinji Abe, Kazushige Kawasaki
  • Patent number: 7964424
    Abstract: A method for manufacturing a nitride semiconductor light-emitting element comprises: forming a semiconductor laminated structure wherein an n-type nitride semiconductor epitaxial layer, an active layer, and a p-type nitride semiconductor epitaxial layer are laminated on a substrate; forming a p-type electrode having a first electrode layer containing Pd and a second electrode layer containing Ta on the p-type nitride semiconductor epitaxial layer; heat treating at a temperature between 400° C. and 600° C. in ambient containing oxygen after forming the p-type electrode; and forming a pad electrode containing Au on the p-type electrode after the heat treating.
    Type: Grant
    Filed: November 5, 2008
    Date of Patent: June 21, 2011
    Assignee: Mitsubishi Electric Corporation
    Inventors: Kyozo Kanamoto, Katsuomi Shiozawa, Kazushige Kawasaki, Shinji Abe, Hitoshi Sakuma
  • Publication number: 20110128986
    Abstract: A semiconductor laser device can suppress electrode-to-electrode resonance of laser light emitted from an active layer, increasing electrical conversion efficiency. The semiconductor laser device has a substrate and an active layer. The energy of the laser light emitted from the active layer is smaller than the band gap energy of the substrate, and the carrier concentration of the substrate is at least 2.2×1018 cm?3.
    Type: Application
    Filed: May 19, 2010
    Publication date: June 2, 2011
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Kimio Shigihara, Akihito Ono, Shinji Abe
  • Patent number: 7901966
    Abstract: A method for manufacturing a nitride semiconductor device, comprises: epitaxially growing a semiconductor layer of a GaN-based material on the Ga surface of a GaN substrate while the GaN substrate is mounted on a substrate holder the substrate warping during the epitaxial growth so that a epitaxial deposit is deposited on the N surface of the substrate; and subjecting the N surface of the GaN substrate to vacuum suction after the epitaxial growth of the semiconductor layer; removing the epitaxial deposit from the N side of the GaN substrate after the semiconductor layer has been epitaxially grown, and before the N surface of the n-type GaN substrate is subjected to vacuum suction.
    Type: Grant
    Filed: August 4, 2009
    Date of Patent: March 8, 2011
    Assignee: Mitsubishi Electric Corporation
    Inventors: Shinji Abe, Kazushige Kawasaki
  • Patent number: 7897418
    Abstract: A method for manufacturing a semiconductor light emitting device includes forming an insulating film on a semiconductor substrate, the insulating film having an opening therein, forming a Pd electrode in the opening and on the insulating film, and removing the portion of the Pd electrode on the insulating film by the application of a physical force to the portion, while leaving the Pd electrode in the opening.
    Type: Grant
    Filed: December 10, 2008
    Date of Patent: March 1, 2011
    Assignee: Mitsubishi Electric Corporation
    Inventors: Takafumi Oka, Masatsugu Kusunoki, Kazushige Kawasaki, Shinji Abe, Hitoshi Sakuma
  • Patent number: 7879684
    Abstract: A semiconductor light-emitting device comprises: a semiconductor substrate; a semiconductor layer structure on the semiconductor substrate, including an active layer and a waveguide ridge; an electrode in contact with all of a top surface of the waveguide ridge; and an insulating film coating side faces of the waveguide ridge, side faces of the electrode, and ends, but not a center portion, of an upper face of the electrode.
    Type: Grant
    Filed: February 24, 2010
    Date of Patent: February 1, 2011
    Assignee: Mitsubishi Electric Corporation
    Inventors: Takafumi Oka, Masatsugu Kusunoki, Shinji Abe
  • Publication number: 20100265702
    Abstract: A multi-wavelength semiconductor laser device includes a plate stem; a prism shaped submount with a bottom face on a face of the stem; laser diodes having emission wavelengths different from each other are mounted on lateral sides of the submount so that their respective emission points are positioned at substantially the same distance from a center axis of the stem; and lead pins penetrating the stem are located along and opposite edge lines between adjacent pairs of the lateral sides of the submount.
    Type: Application
    Filed: April 2, 2010
    Publication date: October 21, 2010
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventor: Shinji Abe
  • Publication number: 20100244074
    Abstract: A semiconductor light-emitting device and a manufacturing method are provided, in which a metal film is deposited with positional differences between edges of an insulating film and the metal film, opposite a ridge waveguide top face, utilizing an overhanging-shaped resist pattern. An opening through the insulating film is extended in width without another masking step by etching the insulation film on the ridge waveguide top face, using the metal film as a mask. The contact area between a p-side electrode and a p-type contact layer is increased and operating voltage of the semiconductor light-emitting device is reduced.
    Type: Application
    Filed: March 3, 2010
    Publication date: September 30, 2010
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Takafumi Oka, Shinji Abe, Kazushige Kawasaki, Junichi Horie, Hitoshi Sakuma
  • Publication number: 20100219382
    Abstract: The present invention provides a coated conductive powder in which the aggregation of conductive particles is suppressed and which is also excellent in electrical reliability, and a conductive adhesive using the same that can provide connection with high electrical reliability even for the connection of the electrodes of miniaturized electronic parts, such as IC chips, and circuit boards. The coated conductive powder of the present invention is a coated conductive powder obtained by coating the surfaces of conductive particles with insulating inorganic fine particles, wherein the volume resistivity value of the coated conductive powder is 1 ?·cm or less, the specific gravity of the insulating inorganic fine particles is 5.
    Type: Application
    Filed: October 21, 2008
    Publication date: September 2, 2010
    Applicant: NIPPON CHEMICAL INDUSTRIAL CO., LTD
    Inventor: Shinji Abe
  • Publication number: 20100221545
    Abstract: It is an object of the present invention to provide a coated conductive powder particularly useful as the conductive filler of an anisotropic conductive adhesive used for electrically interconnecting circuit boards, circuit parts, and the like, and a conductive adhesive that can provide connection with high electrical reliability even for the connection of the electrodes of miniaturized electronic parts, such as IC chips, and circuit boards. The coated conductive powder of the present invention is a coated conductive powder obtained by coating the surfaces of conductive particles with an insulating substance, wherein the insulating substance is a powdery, thermally latent curing agent. Also, in the present invention, the particle surfaces of the coated conductive powder are further coated with insulating inorganic fine particles.
    Type: Application
    Filed: October 21, 2008
    Publication date: September 2, 2010
    Applicant: NIPPON CHEMICAL INDUSTRIAL CO., LTD.
    Inventor: Shinji Abe
  • Publication number: 20100219438
    Abstract: A semiconductor light-emitting device comprises: a semiconductor substrate; a semiconductor layer structure on the semiconductor substrate, including an active layer and a waveguide ridge; an electrode in contact with all of a top surface of the waveguide ridge; and an insulating film coating side faces of the waveguide ridge, side faces of the electrode, and ends, but not a center portion, of an upper face of the electrode.
    Type: Application
    Filed: February 24, 2010
    Publication date: September 2, 2010
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Takafumi Oka, Masatsugu Kusunoki, Shinji Abe
  • Publication number: 20100151658
    Abstract: A method for manufacturing a nitride semiconductor device, comprises epitaxially growing a semiconductor layer of a GaN-based material on the Ga surface of a GaN substrate while the GaN substrate is mounted on a substrate holder the substrate warping during the epitaxial growth so that a epitaxial deposit is deposited on the N surface of the substrate; and subjecting the N surface of the GaN substrate to vacuum suction after the epitaxial growth of the semiconductor layer; removing the epitaxial deposit from the N side of the GaN substrate after the semiconductor layer has been epitaxially grown, and before the N surface of the n-type GaN substrate is subjected to vacuum suction.
    Type: Application
    Filed: August 4, 2009
    Publication date: June 17, 2010
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Shinji Abe, Kazushige Kawasaki
  • Patent number: 7718454
    Abstract: A method of manufacturing semiconductor laser device including a GaN wafer includes forming a semiconductor layer on the GaN wafer and on which ridge portions are formed. Grooves are formed in the semiconductor layer such that each groove is disposed in line with the scribe marks, between each of the ridge portions and an upstream scribe mark. The grooves are curved and convex outwardly towards a downstream side, and each groove has an apex on a cleavage line. The side extending from the apex preferably does not form an angle of 60 degrees with respect to a cleavage direction or the cleavage line.
    Type: Grant
    Filed: February 12, 2008
    Date of Patent: May 18, 2010
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hitoshi Nakamura, Shinji Abe, Harumi Nishiguchi
  • Patent number: 7694213
    Abstract: A video content creating apparatus includes a computer. The computer registers photographic image data input from a photographic input device and meta-information set in relation to the data in a database. After retrieving photographs based on the meta-information, the apparatus selects the photographs to be used for a reminiscence video and decides the reproduction order of the photographs. After registering a BGM playlist, the apparatus reproduces the photographs and BGM for creating the reminiscence video. If there are any regions, the apparatus displays the regions on a monitor while aligning them in sequence according to the meta-information on them. Upon completion of generation (rendering) of a series of reminiscence video contents, the apparatus creates the reminiscence video by saving the rendering results in Flash movie format, for example.
    Type: Grant
    Filed: October 27, 2005
    Date of Patent: April 6, 2010
    Assignee: Advanced Telecommunications Research Institute International
    Inventors: Kazuhiro Kuwabara, Noriaki Kuwahara, Kiyoshi Yasuda, Shinji Abe, Nobuji Tetsutani
  • Patent number: 7687290
    Abstract: A method for manufacturing a semiconductor optical device includes: forming a laminated semiconductor structure of GaN-based materials on a semiconductor wafer, the laminated semiconductor structure forming a laser diode of GaN-based materials, including an active layer having a quantum well structure; cleaving the semiconductor wafer including the laminated semiconductor structure to expose a cleaved end face of the laminated semiconductor structure; and forming an SiO2 film on the cleaved end face and performing a heat treatment to cause Ga vacancy diffusion in the active layer to disorder the quantum well structure of the active layer.
    Type: Grant
    Filed: March 17, 2008
    Date of Patent: March 30, 2010
    Assignee: Mitsubishi Electric Corporation
    Inventor: Shinji Abe
  • Patent number: 7610509
    Abstract: A fault tolerant (FT) computer system includes a first system; and a second system configured to operate in synchronization with the first system. Each of the first and second systems includes a CPU; and a routing controller connected with the CPU. The first system includes a first I/O device as an activist I/O device, and the second system includes a second I/O device as a standby I/O device. The routing controller controls a routing between the CPU and the first I/O device and the second I/O device. When a fault has occurred in the first I/O device, the routing controller in said first system routes a request data a request data received from the CPU and destined to the first I/O device, to the second I/O device.
    Type: Grant
    Filed: December 16, 2005
    Date of Patent: October 27, 2009
    Assignee: NEC Corporation
    Inventor: Shinji Abe
  • Patent number: 7585688
    Abstract: A method for manufacturing a semiconductor optical device includes: forming a first resist pattern on a top surface of a laminated semiconductor structure; forming channels and a waveguide ridge by dry etching using the first resist pattern as a mask; forming an SiO2 film on the waveguide ridge and the channels, leaving the first resist pattern on a top surface of the waveguide ridge; forming a second resist pattern covering the SiO2 film on the channels, and exposing the top surface of the SiO2 film on top of the waveguide ridge; removing the SiO2 film by dry etching using the second resist pattern as a mask; removing the first and second resist patterns by a wet method; and forming a p-side electrode.
    Type: Grant
    Filed: February 28, 2008
    Date of Patent: September 8, 2009
    Assignee: Mitsubishi Electric Corporation
    Inventors: Takafumi Oka, Shinji Abe
  • Publication number: 20090184336
    Abstract: A semiconductor light emitting device includes: a semiconductor layer; an insulating film on the semiconductor layer and having an opening; a multilayer adhesive layer on the insulating film; and a Pd electrode in contact with the semiconductor layer through the opening and in contact with the multilayer adhesive layer. The multilayer adhesive layer includes an Au layer at the top and an alloy of Au and Pd at the interface between the Au layer and the Pd electrode.
    Type: Application
    Filed: July 10, 2008
    Publication date: July 23, 2009
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Takafumi Oka, Shinji Abe, Kazushige Kawasaki, Hitoshi Sakuma