Patents by Inventor Yuichi Ogawa

Yuichi 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: 8573570
    Abstract: A fluid-filled vibration damping device including: a pressure-receiving chamber and an equilibrium chamber disposed on either side of a partition plate, while being connected through a first orifice passage; a moveable film arranged to either a pressure-receiving chamber side or an equilibrium chamber side of the partition plate while being spaced away therefrom to define therebetween an intermediate chamber; a second orifice passage connecting the intermediate chamber and one of the pressure-receiving and the equilibrium chambers while being tuned to higher frequency than the first orifice passage; and a flow straightening plate arranged in opposition to the moveable film at least at one of the intermediate chamber side and an opposite side thereof, the flow straightening plate having a plurality of flow straightening apertures opening towards the moveable film and furnished with a flow limiting member.
    Type: Grant
    Filed: February 18, 2010
    Date of Patent: November 5, 2013
    Assignees: Tokai Rubber Industries, Ltd., Toyota Jidosha Kabushiki Kaisha
    Inventors: Hiroyuki Ichikawa, Yuichi Ogawa, Naoki Furumachi, Katsuhiro Sakurai, Nobuya Yoshida
  • Publication number: 20130272728
    Abstract: An apparatus includes an image formation unit including a photosensitive drum and a motor for driving the image formation unit. The apparatus acquires a frequency generator signal, which is phase information output from the motor as the motor rotates. In addition, the apparatus corrects unevenness of the density that may occur due to the rotation of the motor according to the acquired phase information.
    Type: Application
    Filed: June 11, 2013
    Publication date: October 17, 2013
    Inventors: Takayuki Fukutani, Yuuji Takayama, Tomoyuki Saiki, Tae Mutsuo, Yuichi Ogawa
  • Patent number: 8514403
    Abstract: A sample analysis method is provided for analyzing a sample having a permeability to terahertz radiation and accurately measure the composition, physical properties, mass and dimensions of a very small sample or a minute amount of sample by irradiating the sample with terahertz radiation. In the method, a reflective member is provided adjoining a first principal surface of the sample, an entrance member is provided adjoining a second principal surface of the sample, terahertz radiation is delivered from outside of entrance member towards the sample, and the sample is analyzed using an interference wave generated from a first-surface reflected wave at the interface between the first principal surface of the sample and the reflective member and a second-surface reflected wave at the interface between the second principal surface of the sample and the entrance member.
    Type: Grant
    Filed: April 14, 2011
    Date of Patent: August 20, 2013
    Assignees: Tohoku University, Murata Manufacturing Co., Ltd.
    Inventors: Yuichi Ogawa, Shinichiro Hayashi, Seiji Kamba, Takashi Kondo
  • Patent number: 8492718
    Abstract: There is provided a measuring apparatus including a space arrangement structure that includes space regions surrounded by conductors in a plane, an electromagnetic wave emitter that emits electromagnetic waves towards an object held by the space arrangement structure, and an electromagnetic wave detector that measures the electromagnetic waves that have passed through the space arrangement structure. Here, characteristics of the object are measured by measuring the electromagnetic waves that have passed through the space arrangement structure. The electromagnetic waves emitted from the electromagnetic wave emitter towards the space arrangement structure are incident on the plane containing the space regions at an angle, and the electromagnetic waves that have passed through the space arrangement structure are measured.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: July 23, 2013
    Assignee: Advantest Corporation
    Inventors: Yuichi Ogawa, Shinichiro Hayashi, Eiji Kato
  • Patent number: 8483587
    Abstract: An apparatus includes an image formation unit including a photosensitive drum and a motor for driving the image formation unit. The apparatus acquires a frequency generator signal, which is phase information output from the motor as the motor rotates. In addition, the apparatus corrects unevenness of the density that may occur due to the rotation of the motor according to the acquired phase information.
    Type: Grant
    Filed: June 28, 2010
    Date of Patent: July 9, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takayuki Fukutani, Yuuji Takayama, Tomoyuki Saiki, Tae Mutsuo, Yuichi Ogawa
  • Patent number: 8424854
    Abstract: A fluid-filled type vibration damping device wherein a low-frequency orifice passage and at least one high-frequency orifice passage are formed in a partition member, which is supported by a second mounting member; a valve body is disposed at least at one opening of the high-frequency orifice passage and is provided with a spring member that in a nonloaded state positions the valve body away from the opening of the high-frequency orifice passage to hold the high-frequency orifice passage in an open state; and, at times of vibration input, the valve body is adapted to block the high-frequency orifice passage in opposition to a holding force of the spring member.
    Type: Grant
    Filed: November 4, 2009
    Date of Patent: April 23, 2013
    Assignee: Tokai Rubber Industries, Ltd.
    Inventors: Hiroyuki Ichikawa, Yuichi Ogawa, Naoki Furumachi
  • Publication number: 20130076912
    Abstract: In order to generate a two-dimensional image of a sample in a short time using THz waves, provided is a reflective imaging device including a sample holder, a THz wave light source, a THz wave camera, a rotation mechanism for rotating the holder and the camera, and a processing unit. A sample unit includes an incidence member, a sample, and a reflection member. The sample includes a first region of only a membrane and a second region including a biopolymer. The camera detects, with regard to respective incident angles, a THz wave in which interference occurs between a component reflected at an interface between the incidence member and the sample and a component reflected at an interface between the sample and the reflection member, of each portion of the sample unit, and outputs a signal.
    Type: Application
    Filed: May 20, 2011
    Publication date: March 28, 2013
    Applicants: National Institute of Information and Communications Technology, NEC CORPORATION
    Inventors: Naoki Oda, Yuichi Ogawa, Iwao Hosako, Norihiko Sekine
  • Publication number: 20130001844
    Abstract: An anti-vibration rubber device is capable of advantageously preventing cracks from occurring in a constricted portion because of a long time use in a high-temperature environment. A rubber ring having higher resistance to gas permeability than a main rubber portion is externally inserted in a tension-deformed state to a stress concentration portion of a constricted portion in the main rubber portion that connects a first attachment member and a second attachment member. Due to a restoring force from the tension-deformed state, the rubber ring is tightly attached without being bonded to an outer peripheral surface of the stress concentration portion.
    Type: Application
    Filed: September 10, 2012
    Publication date: January 3, 2013
    Applicant: TOKAI RUBBER INDUSTRIES, LTD.
    Inventors: Ryota ISHIKAWA, Yuichi OGAWA, Yorishige SHIMIZU
  • Publication number: 20120235043
    Abstract: There is provided a measuring apparatus including a space arrangement structure that includes space regions surrounded by conductors in a plane, an electromagnetic wave emitter that emits electromagnetic waves towards an object held by the space arrangement structure, and an electromagnetic wave detector that measures the electromagnetic waves that have passed through the space arrangement structure. Here, characteristics of the object are measured by measuring the electromagnetic waves that have passed through the space arrangement structure. The electromagnetic waves emitted from the electromagnetic wave emitter towards the space arrangement structure are incident on the plane containing the space regions at an angle, and the electromagnetic waves that have passed through the space arrangement structure are measured.
    Type: Application
    Filed: May 31, 2012
    Publication date: September 20, 2012
    Applicant: ADVANTEST CORPORATION
    Inventors: Yuichi OGAWA, Shinichiro HAYASHI, Eiji KATO
  • Publication number: 20120239968
    Abstract: In a storage apparatus a control section writes, at the time of updating at least a part of first data stored in a first storage area by at least a part of second data, the second data to a second storage area other than the first storage area. In addition, the control section determines whether or not a write error occurs. When the write error does not occur, the control section combines the first data and the second data.
    Type: Application
    Filed: March 6, 2012
    Publication date: September 20, 2012
    Applicant: FUJITSU LIMITED
    Inventor: Yuichi OGAWA
  • Patent number: 8269967
    Abstract: A method of attaching an object to be measured to a structure causing a diffraction phenomenon; irradiating the structure to which the object to be measured is attached and which causes the diffraction phenomenon with an electromagnetic wave; detecting the electromagnetic wave scattered by the structure causing the diffraction phenomenon; and measuring a characteristic of the object to be measured from the frequency characteristic of the detected electromagnetic wave. The object to be measured is attached directly to the surface of the structure causing the diffraction phenomenon. Thus, the method for measuring the characteristic of an object to be measured exhibits an improved measurement sensitivity and high reproducibility. A structure causing a diffraction phenomenon and used for the method, and a measuring device are provided.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: September 18, 2012
    Assignees: Murata Manufacturing Co., Ltd., National University Corporation Tohoku University
    Inventors: Seiji Kamba, Takashi Kondo, Koji Tanaka, Kazuhiro Takigawa, Yuichi Ogawa
  • Patent number: 8253103
    Abstract: There is provided a measuring apparatus including a space arrangement structure that includes space regions surrounded by conductors in a plane, an electromagnetic wave emitter that emits electromagnetic waves towards an object held by the space arrangement structure, and an electromagnetic wave detector that measures the electromagnetic waves that have passed through the space arrangement structure. Here, characteristics of the object are measured by measuring the electromagnetic waves that have passed through the space arrangement structure. The electromagnetic waves emitted from the electromagnetic wave emitter towards the space arrangement structure are incident on the plane containing the space regions at an angle, and the electromagnetic waves that have passed through the space arrangement structure are measured.
    Type: Grant
    Filed: July 28, 2009
    Date of Patent: August 28, 2012
    Assignee: Advantest Corporation
    Inventors: Yuichi Ogawa, Shinichiro Hayashi, Eiji Kato
  • Publication number: 20120195650
    Abstract: An image forming apparatus corrects, for uneven density caused by uneven rotation of a rotation speed of a rotation member, and diffuses so as to reduce the uneven density, for a pixel of interest whose density exceeds the upper limit of the output density out of the pixels of the corrected image data, the excess of the density more than the upper limit to a plurality of peripheral pixels while maintaining the center of gravity of the density.
    Type: Application
    Filed: January 20, 2012
    Publication date: August 2, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Yuichi Ogawa, Yuuji Takayama
  • Publication number: 20120137755
    Abstract: A measurement method that includes irradiating a void-arranged structure on which an analyte has been held with an electromagnetic wave, detecting an electromagnetic wave scattered on the void-arranged structure, and determining a property of the analyte on the basis of at least one parameter, the parameter including the amount of change in the ratio of the detected electromagnetic wave to the irradiated electromagnetic wave at a specific frequency between the presence and the absence of the analyte.
    Type: Application
    Filed: February 16, 2012
    Publication date: June 7, 2012
    Inventors: Kazuhiro Takigawa, Takashi Kondo, Seiji Kamba, Yuichi Ogawa
  • Patent number: 8195847
    Abstract: A storage control apparatus for transmitting data to and receiving data from a plurality of storage devices connected to the same interface, the storage control apparatus includes a memory configured to store a management table registering a burst transfer length of each of the plurality of storage devices, the plurality of storage devices including a first storage device having a first burst transfer length that is a minimum in the management table and a second device having a second burst transfer length; an adjusting controller configured to adjust the second burst transfer length in input and/or output processing if the second burst transfer length registered in the management table is different from the first burst transfer length; and a data transfer controller configured to issue a command for a data transfer to the second storage device on the basis of the adjusted second burst transfer length.
    Type: Grant
    Filed: March 16, 2011
    Date of Patent: June 5, 2012
    Assignee: Fujitsu Limited
    Inventors: Yuichi Ogawa, Tsukasa Makino, Tomoaki Tsuruta, Hiroaki Ochi, Marie Abe, Naohiro Takeda
  • Patent number: 8156260
    Abstract: A data transfer device for performing direct memory access (DMA) transfer of data stored in a storage unit to a plurality of other devices includes: a plurality of channel units arranged to correspond to the other devices, the channel units retaining DMA transfer instructions, and outputting number of the DMA transfer instructions retained; a plurality of priority controllers for determining priorities of the channel units on the basis of the number of the DMA transfer instructions retained in the channel units, respectively; an arbiter for selecting one of the DMA transfer instructions retained in one of the channel units on the basis of the priorities determined by the priority controller; and a data transfer processor for performing DMA transfer of data stored in the storage unit to one of the other devices in accordance with the DMA transfer instruction selected by the arbiter.
    Type: Grant
    Filed: July 14, 2009
    Date of Patent: April 10, 2012
    Assignee: Fujitsu Limited
    Inventor: Yuichi Ogawa
  • Publication number: 20120062351
    Abstract: A ferromagnetic amorphous alloy ribbon includes an alloy having a composition represented by FeaSibBcCd where 80.5?a?83 at. %, 0.5?b?6 at. %, 12?c?16.5 at. %, 0.01?d?1 at. % with a+b+c+d=100 and incidental impurities, the ribbon being cast from a molten state of the alloy with a molten alloy surface tension of greater than or equal to 1.1 N/m on a chill body surface; the ribbon having a ribbon length, a ribbon thickness, and a ribbon surface facing the chill body surface; the ribbon having ribbon surface protrusions being formed on the ribbon surface facing the chill body surface; the ribbon surface protrusions being measured in terms of a protrusion height and a number of protrusions; the protrusion height exceeding 3 ?m and less than four times the ribbon thickness, and the number of protrusions being less than 10 within 1.5 m of the cast ribbon length; and the alloy ribbon in its annealed straight strip form having a saturation magnetic induction exceeding 1.
    Type: Application
    Filed: September 9, 2010
    Publication date: March 15, 2012
    Applicants: HITACHI METALS, LTD., METGLAS, INC.
    Inventors: Eric A. Theisen, James Perrozi, Yuichi Ogawa, Yuji Matsumoto, Daichi Azuma, Ryusuke Hasegawa
  • Publication number: 20120048428
    Abstract: A ferromagnetic amorphous alloy ribbon includes an alloy having a composition represented by FeaSibBcCd where 80.5?a?83 at. %, 0.5?b?6 at. %, 12?c?16.5 at. %, 0.01?d?1 at. % with a+b+c+d=100 and incidental impurities, the defect length along a direction of the ribbon's length being between 5 mm and 200 mm, the defect depth being less than 0.4×t ?m and the defect occurrence frequency being less than 0.05×w times within 1.5 m of ribbon length, where t and w are ribbon thickness and ribbon width, respectively, and the ribbon in its annealed state and straight strip form of the ribbon, has a saturation magnetic induction exceeding 1.60 T, and exhibits a magnetic core loss of less than 0.14 W/kg when measured at 60 Hz and at 1.3 T induction level. The ribbon is suitable for use in transformer cores, rotational machines, electrical chokes, magnetic sensors and pulse power devices.
    Type: Application
    Filed: August 31, 2010
    Publication date: March 1, 2012
    Applicants: HITACHI METALS, LTD., METGLAS, INC.
    Inventors: Yuichi Ogawa, Eric A. Theisen, Yuji Matsumoto, James Perrozi, Ryusuke Hasegawa
  • Publication number: 20120049423
    Abstract: A fluid-filled type vibration damping device including a partition member having a moveable film and a short passage interconnecting a pressure receiving chamber and an equilibrium chamber. A valve member that switches between a communicating state and a shut off state of the short passage projects from the moveable film. The valve member has a thick walled part and a thin walled part, the thin walled part being pressed on an inner wall surface of the short passage. A pressure of the pressure receiving chamber is applied through the short passage to a pressure receiving chamber side surface of the thick walled part, while an equilibrium chamber side surface thereof is supported by the partition member. The pressure of the pressure receiving chamber is applied to one side of the thin walled part and a pressure of the equilibrium chamber is applied to another side thereof through the short passage.
    Type: Application
    Filed: August 23, 2011
    Publication date: March 1, 2012
    Applicant: TOKAI RUBBER INDUSTRIES, LTD.
    Inventors: Ryota ISHIKAWA, Yuichi OGAWA, Yorishige SHIMIZU
  • Publication number: 20120049992
    Abstract: A ferromagnetic amorphous alloy ribbon includes an alloy having a composition represented by FeaSibBcCd where 80.5?a?83 at. %, 0.5?b?6 at. %, 12?c?16.5 at. %, 0.01?d?1 at. % with a+b+c+d=100 and incidental impurities; the ribbon being cast from a molten state of the alloy, with a molten alloy surface tension of greater than or equal to 1.1 N/m; the defect length along a direction of the ribbon's length being between 5 mm and 200 mm, the defect depth being less than 0.4×t ?m and the defect occurrence frequency being less than 0.05×w times within 1.5 m of ribbon length, where t is the ribbon thickness and w is the ribbon width, and the ribbon having a saturation magnetic induction exceeding 1.60 T and exhibiting a magnetic core loss of less than 0.14 W/kg when measured at 60 Hz and at 1.3 T induction level in an annealed straight strip form, and a core magnetic loss of less than 0.3 W/kg and an exciting power of less than 0.4 VA/kg in an annealed wound transformer core form.
    Type: Application
    Filed: August 31, 2010
    Publication date: March 1, 2012
    Applicants: HITACHI METALS, LTD., METGLAS, INC.
    Inventors: Daichi Azuma, Ryusuke Hasegawa, Yuichi Ogawa, Eric A. Theisen, Yuji Matsumoto