Patents by Inventor Tetsu IN

Tetsu IN 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: 7696469
    Abstract: The present invention can be used in a multi-optical axis photoelectric sensor indicating an operating status thereof to a non-safety control device. The present invention allows the multi-optical axis photoelectric sensor so as to become a easier operation. The multi-optical axis photoelectric sensor has a control unit to providing a safety control signal representing a result of a distinguish portion in a normal operating status, a safety control signal representing operation non-allowable in an abnormal status and a safety control signal representing operation allowable in a special operating status. The multi-optical axis photoelectric sensor also has an operating status indication portion for determining an operating status of the multi-optical axis photoelectric sensor from the normal operating status, the abnormal status and the special operating status, and providing the operating status to an external device via the same output line regardless of the result of the determination.
    Type: Grant
    Filed: January 23, 2008
    Date of Patent: April 13, 2010
    Assignee: Keyence Corporation
    Inventors: Tetsu Inoue, Koji Fukumura
  • Patent number: 7692630
    Abstract: An information processing apparatus includes the following elements. An image data acquisition unit acquires image data of a captured image including a code having a fixed area in which a predetermined fixed area code is formed and a variable area in which a variable area code formed by a combination of a plurality of codes is formed. A fixed area code recognition unit analyzes the captured image to recognize the predetermined fixed area code of the fixed area. A variable area code default value setting unit sets the default value of the variable area code based on the predetermined fixed area code. A variable area code recognition unit analyzes the captured image to recognize the variable area code. A comparator compares the variable area code with the default value to determine the difference therebetween. A command designation unit designates a command to be executed based on the difference.
    Type: Grant
    Filed: December 8, 2005
    Date of Patent: April 6, 2010
    Assignee: Sony Corporation
    Inventors: Tetsu Natsume, Yuji Ayatsuka, Junichi Rekimoto
  • Patent number: 7692575
    Abstract: A radar target detection method in which an azimuth at which a target is located is detected on the basis of reception signals obtained through antenna elements of an array antenna by detecting a change in levels of spectrum peaks in an azimuth spectrum of reception signal intensities, calculating a level of correlation between the level change of each spectrum peak and a directivity pattern of the array antenna in an azimuth range corresponding to the spectrum peak, and determining an azimuth corresponding to one of the spectrum peaks having the highest corresponding correlation level to be the azimuth at which the target is located.
    Type: Grant
    Filed: October 24, 2007
    Date of Patent: April 6, 2010
    Assignee: Murata Manufacturing Co., Ltd.
    Inventor: Tetsu Nishimura
  • Publication number: 20100078924
    Abstract: A passenger seat airbag apparatus includes: an airbag which is housed in a folded state inside an instrument panel, and which inflates toward a passenger with a supply of gas during a frontal collision of a vehicle, and which has a vent hole that can be opened and closed; a tether whose first end is linked to a periphery of the vent hole in the airbag, and which closes the vent hole due to tension that is caused when the airbag inflates; an actuator which has a first hole that a second end of the tether is passed through, and which discontinues a linked state of the tether by cutting the tether if a predetermined condition is satisfied; and a protective member that is attached to the actuator so as to cover at least an edge portion of the first hole, and that is interposed between the edge portion and the tether.
    Type: Application
    Filed: September 15, 2009
    Publication date: April 1, 2010
    Applicants: Toyota Jidosha Kabushiki Kaisha, Autoliv Development AB
    Inventors: Tetsu Mitsuo, Akiyoshi Sanada, Naoki Tamura, Hideaki Tanaka
  • Patent number: 7689078
    Abstract: An optical device including (a) a substrate having an electro-optic effect; (b) a modulating optical waveguide formed on a surface layer portion of said substrate and forming an interference optical modulator for modulating input light; (c) an output optical waveguide formed on said surface layer portion of said substrate and connected to a downstream side portion of said modulating optical waveguide; and (d) a branching monitoring section for monitoring branched light of light propagated along said output optical waveguide and emitted from an outgoing end face of said substrate. The output waveguide has a reduced width region in which the waveguide width is reduced.
    Type: Grant
    Filed: February 22, 2008
    Date of Patent: March 30, 2010
    Assignee: Fujitsu Limited
    Inventors: Akira Ishii, Takehito Tanaka, Masaharu Doi, Tetsu Hasegawa
  • Publication number: 20100074277
    Abstract: A generation device generates a frame to be transmitted to a destination communication apparatus. The frame includes a first separation field, a first MAC protocol data unit (MPDU) following the first separation field, a second separation field following the first MPDU, a third separation field following the second separation field, and a third MPDU following the third separation field. The second separation field includes length information set to a value of zero to indicate no second MPDU directly follows the second separation field. The first MPDU includes a first MAC header, a first data field, and a first frame check sequence (FCS). The first FCS is for detecting an error occurred in at least the first data field. The third MPDU includes a third MAC header, a third data field, and a third FCS. The third FCS is for detecting an error occurred in at least the third data field.
    Type: Application
    Filed: November 27, 2009
    Publication date: March 25, 2010
    Inventors: Yasuyuki NISHIBAYASHI, Masahiro TAKAGI, Tomoko ADACHI, Tetsu NAKAJIMA, Yoriko UTSUNOMIYA, Tomoya TANDAI
  • Publication number: 20100075046
    Abstract: An aqueous ink comprises water, a water-insoluble coloring material, and plurality of water-soluble organic solvents and the plurality of water-soluble organic solvents including a good medium or good mediums for the water-insoluble coloring material and a poor medium or poor mediums for the water-insoluble coloring material. The ratio of the content of the poor medium and the content of the good medium is in a specific range. A water-soluble organic solvent showing the maximum Ka value out of respective Ka values of the plurality of water-soluble organic solvents is the poor medium. When the aqueous ink is in contact with a specific reaction liquid, the dissolution state or dispersed state of the water-insoluble coloring material in the ink is made unstable. As a result, an image which has a sufficiently large area factor even with a small amount of ink droplets and is excellent in image density, bleeding resistance, and fixability can be obtained.
    Type: Application
    Filed: October 9, 2009
    Publication date: March 25, 2010
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Shinichi Hakamada, Takashi Imai, Mikio Sanada, Yasuhiro Nito, Tetsu Iwata, Sadayuki Sugama
  • Patent number: 7684903
    Abstract: A method for controlling a semiconductor manufacturing apparatus in a wait mode, including: obtaining information regarding a waiting time required for a product to arrive at the apparatus on a production line, the product being subjected to a predetermined process by the semiconductor manufacturing apparatus; obtaining information regarding a time required to control energy saving between lowering electric power and other energy used by the semiconductor manufacturing apparatus in the wait mode to a level at which the processing is not ready and raising the electric power and the other energy to a processable level at which the product processing is ready; and judging whether or not to execute the energy saving control of the semiconductor manufacturing apparatus based on results of comparison of the required time with the waiting time and of estimation on an effect of energy saving obtained by executing the energy saving control during the waiting time.
    Type: Grant
    Filed: March 30, 2007
    Date of Patent: March 23, 2010
    Assignee: Seiko Epson Corporation
    Inventor: Tetsu Tomine
  • Patent number: 7680148
    Abstract: A communication apparatus includes a receiving device configured to receive one physical frame in which a plurality of MAC frames are aggregated. This physical frame includes one acknowledgement request frame for the plurality of MAC frames. The apparatus includes an acknowledgement frame forming device configured to form an acknowledgement frame representing reception statuses of the plurality of MAC frames in response to the acknowledgement request frame. The apparatus also includes a transmitting device configured to transmit the acknowledgement frame. This acknowledgement frame includes a compressed acknowledgement frame representing an acknowledgement bitmap having a size equal to a maximum number of MSDUs (MAC Service Data Units) when one MPDU (MAC Protocol Data Unit) corresponds to one MSDU.
    Type: Grant
    Filed: March 25, 2008
    Date of Patent: March 16, 2010
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yasuyuki Nishibayashi, Masahiro Takagi, Tomoko Adachi, Tomoya Tandai, Tetsu Nakajima, Yoriko Utsunomiya
  • Patent number: 7677807
    Abstract: A hub unit for wheel is described, with an outer ring having two bearing tracks on its inner circumferential surface, and a hub having a wheel mount flange on the outer end side and an end portion on the axially vehicle center side. The hub has a first bearing track corresponding to the axially vehicle outer end side bearing track of the outer ring, and an inner ring element fitted on the end portion side of the hub. The inner ring element has on its outer circumference a second bearing track opposed to the axially vehicle center side bearing track of the outer ring, and is fixed on the end portion by plastically deforming the end portion of the hub radially outwardly. Rolling members are provided between the two bearing tracks of the outer ring and the first and second bearing tracks.
    Type: Grant
    Filed: March 3, 2005
    Date of Patent: March 16, 2010
    Assignee: NSK Ltd.
    Inventors: Taketoshi Chifu, Tetsu Takehara, Tomoharu Sugiman, Kinji Yukawa
  • Patent number: 7675679
    Abstract: A Fresnel lens sheet used for an image display device is disclosed. The Fresnel lens sheet is provided with a first prism group in an area of a light entrance plane of the Fresnel lens sheet where the incident angle of light is equal to or more than a predetermined incident angle and a second prism group in an area of a light entrance plane of the Fresnel lens sheet where the incident angle of light is less than the predetermined value.
    Type: Grant
    Filed: June 22, 2006
    Date of Patent: March 9, 2010
    Assignee: Hitachi, Ltd.
    Inventors: Hiroki Yoshikawa, Takanori Hisada, Tetsu Ohishi, Koji Hirata, Daisuke Imafuku
  • Patent number: 7673385
    Abstract: A laminated structure having an electrode hard to peel off and a method of manufacturing the laminated structure. The laminated structure has: a backing substrate; a lower electrode including an adhesive layer containing a metal oxide and a conductive layer formed on the backing substrate with the adhesive layer therebetween; a dielectric layer disposed on the lower electrode; and an upper electrode disposed on the dielectric layer. Further, the method includes the steps of: (a) disposing a lower electrode by forming a conductive layer on a backing substrate with an adhesive layer containing a metal oxide therebetween; (b) disposing a dielectric layer by spraying powder of a dielectric material to the lower electrode for deposition; (c) heat-treating the dielectric layer; and (d) forming an upper electrode on the dielectric layer before or after step (c).
    Type: Grant
    Filed: November 21, 2006
    Date of Patent: March 9, 2010
    Assignee: FUJIFILM Corporation
    Inventor: Tetsu Miyoshi
  • Patent number: 7671707
    Abstract: A bandstop filter where variation in characteristics is suppressed to minimum and which realizes an increased production yield. The physical length of a line joint portion between a main line and an oscillator can be enlarged by providing an impedance non-continuous structure portion in a strip conductor of the oscillator. In comparison to the case where the impedance non-continuous structure portion is not provided, the width of a joint slit required to obtain an equal joint amount can be enlarged. When the joint slit width is enlarged, variation in filter characteristics caused by pattern accuracy can be reduced because of the enlarged joint slip width, thus improving a filter yield. This means that pattern accuracy requirement for production is loosened. Freedom in selecting a dielectric substrate is increased, which also provides an advantage that a filter can be produced using a less expensive dielectric substrate with not very high pattern accuracy.
    Type: Grant
    Filed: July 30, 2003
    Date of Patent: March 2, 2010
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Tetsu Ohwada, Hiroshi Osakada, Hideyuki Oh-Hashi
  • Patent number: 7670007
    Abstract: A projection display is capable of suppressing both the trapezoidal distortion of an enlarged image projected on a screen by oblique projection and aberrations resulting from oblique projection and includes a projection optical system provided with lenses that can be easily manufactured and assembled. The projection optical system for obliquely projecting an image formed by a display device on the screen includes a free curved lens having a rotationally asymmetric free curved surface. The free curved lens has fringing parts having outlines of a shape coinciding with an arc of a circle having the center on the optical axis of the free curved lens.
    Type: Grant
    Filed: June 23, 2006
    Date of Patent: March 2, 2010
    Assignee: Hitachi, Ltd.
    Inventors: Takanori Hisada, Hiroki Yoshikawa, Tetsu Ohishi, Koji Hirata, Naoyuki Ogura
  • Patent number: 7671417
    Abstract: A memory cell array includes isolated semiconductor regions formed on a supporting insulating substrate, memory cells formed in the respective semiconductor regions, and insulating regions formed so as to insulate the memory cells. Each memory cell formed in a semiconductor region includes a source region, a drain region, a front gate region formed on a gate insulating film formed on one of side surfaces of the semiconductor region such that the source region and the drain region are separated from each other by the front gate region, and a back gate region formed on a gate insulating film formed on an opposite side surface of the semiconductor region such that the source region and the drain region are separated from each other by the back gate region. Each memory cell shares the back gate region with a memory cell adjacent in a row direction.
    Type: Grant
    Filed: August 17, 2007
    Date of Patent: March 2, 2010
    Assignee: Fujitsu Microelectronics Limited
    Inventors: Eiji Yoshida, Tetsu Tanaka, Toshihiko Miyashita
  • Publication number: 20100044753
    Abstract: A nitride semiconductor device 2 comprises a nitride semiconductor layer 10. A gate insulating film 16 is formed on the surface of the nitride semiconductor layer 10. The gate insulating film 16 includes a portion composed of an aluminum nitride film 15 and a portion composed of an insulating material 14 that contains at least one of oxygen or silicon. A region W2 of the nitride semiconductor layer 10 facing the aluminum nitride film 15 is included in a region W1 of the nitride semiconductor layer 10 facing a gate electrode 18. The nitride semiconductor device 2 may further comprise a nitride semiconductor lower layer 8. The nitride semiconductor layer 10 may be stacked on the surface of the nitride semiconductor lower layer 8. The nitride semiconductor layer 10 may have a larger band gap than that of the nitride semiconductor lower layer 8 and have a heterojunction formed there between.
    Type: Application
    Filed: August 20, 2009
    Publication date: February 25, 2010
    Inventors: Masahiro SUGIMOTO, Hiroyuki Ueda, Tsutomu Uesugi, Masakazu Kanechika, Tetsu Kachi
  • Publication number: 20100046540
    Abstract: A communication apparatus includes a receiving device configured to receive one physical frame in which a plurality of MAC frames are aggregated. This physical frame includes one acknowledgement request frame for the plurality of MAC frames. The apparatus includes an acknowledgement frame forming device configured to form an acknowledgement frame representing reception statuses of the plurality of MAC frames in response to the acknowledgement request frame. The apparatus also includes a transmitting device configured to transmit the acknowledgement frame. This acknowledgement frame includes a compressed acknowledgement frame representing an acknowledgement bitmap having a size equal to a maximum number of MSDUs (MAC Service Data Units) when one MPDU (MAC Protocol Data Unit) corresponds to one MSDU.
    Type: Application
    Filed: October 27, 2009
    Publication date: February 25, 2010
    Inventors: Yasuyuki NISHIBAYASHI, Masahiro Takagi, Tomoko Adachi, Tomoya Tandai, Tetsu Nakajima, Yoriko Utsunomiya
  • Publication number: 20100046437
    Abstract: A communication apparatus includes a receiving device configured to receive one physical frame in which a plurality of MAC frames are aggregated. This physical frame includes one acknowledgement request frame for the plurality of MAC frames. The apparatus includes an acknowledgement frame forming device configured to form an acknowledgement frame representing reception statuses of the plurality of MAC frames in response to the acknowledgement request frame. The apparatus also includes a transmitting device configured to transmit the acknowledgement frame. This acknowledgement frame includes a compressed acknowledgement frame representing an acknowledgement bitmap having a size equal to a maximum number of MSDUs (MAC Service Data Units) when one MPDU (MAC Protocol Data Unit) corresponds to one MSDU.
    Type: Application
    Filed: October 27, 2009
    Publication date: February 25, 2010
    Inventors: Yasuyuki Nishibayashi, Masahiro Takagi, Tomoko Adachi, Tomoya Tandai, Tetsu Nakajima, Yoriko Utsunomiya
  • Patent number: 7662775
    Abstract: The invention relates to a convenient screening tool for identifying an agent for treating diabetes. The screening tool is a G protein-coupled receptor, a variant of the G protein-coupled receptor, or a homolog of the G protein-coupled receptor, which promotes insulin secretion under a high glucose concentration by activation. The invention also relates to cells transformed with an expression vector comprising a polynucleotide encoding and expressing the screening tool. The invention provides a convenient screening method for identifying an agent for treating diabetes, pharmaceutical compositions comprising the agent, and a process for manufacturing the pharmaceutical composition.
    Type: Grant
    Filed: October 29, 2004
    Date of Patent: February 16, 2010
    Assignee: Astellas Pharma Inc.
    Inventors: Takahide Ohishi, Jun Takasaki, Mitsuyuki Matsumoto, Tetsu Saito, Masazumi Kamohara, Takatoshi Soga
  • Patent number: 7664129
    Abstract: A wireless communication apparatus includes a carrier sense device which determines whether or not the first channel satisfies a specific condition of the determination of an idle state, and an occupation/release control device which performs control to make the first physical layer protocol processing device generate and transmit a first frame which declares that the first channel will be occupied for a first predetermined period by virtual carrier sense, when the specific condition of the determination of the idle state is satisfied, and perform control to make the second physical layer protocol processing device generate and transmit a second frame which declares that the second channel will be occupied for a second predetermined period by virtual carrier sense.
    Type: Grant
    Filed: March 4, 2005
    Date of Patent: February 16, 2010
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Masahiro Takagi, Tomoko Adachi, Tetsu Nakajima, Yoriko Utsunomiya, Yasuyuki Nishibayashi