Patents by Inventor Teruhisa Akashi

Teruhisa Akashi 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: 20130049212
    Abstract: Technology is provided in which, when forming a trench of a narrow width in a thick semiconductor layer, a trench can be formed without the occurrence of semiconductor residue. In this Specification, a semiconductor device in which a trench is formed in a semiconductor layer is disclosed. In the semiconductor layer of the semiconductor device, a compensation pattern which compensates for sudden changes in the width of the trench is formed at a place at which the width of the trench changes suddenly. In the semiconductor layer of the above-described semiconductor device, since a compensation pattern is formed at a place at which the trench width changes suddenly, in the case where forming the trench using a deep RIE method, the occurrence of steep inclined portions arising from semiconductor residue can be prevented. Consequently, when forming, a trench of a narrow width in a thick semiconductor layer, the occurrence of semiconductor residue can be prevented.
    Type: Application
    Filed: August 28, 2012
    Publication date: February 28, 2013
    Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Yoshiyuki HATA, Yutaka NONOMURA, Teruhisa AKASHI, Hirofumi FUNABASHI, Motohiro FUJIYOSHI, Yoshiteru OMURA
  • Patent number: 8368196
    Abstract: The micro device includes a support substrate, and a movable structure configured to move with respect to the support substrate. At least one of the support substrate and the movable structure is provided with at least one protrusion protruding towards the other of the support substrate and the movable structure. Further, a base portion extending into the one of the support substrate and the movable structure is provided integrally with the at least one protrusion. With this configuration, the protrusion is securely held by the base portion, and the detachment of the protrusion can therefore be prevented even after repeated collisions between the support substrate and the movable structure via the protrusion.
    Type: Grant
    Filed: February 23, 2010
    Date of Patent: February 5, 2013
    Assignee: Kabushiki Kaisha Toyota Chuo Kenkyusho
    Inventors: Teruhisa Akashi, Hirofumi Funabashi, Motohiro Fujiyoshi, Yutaka Nonomura
  • Patent number: 8365597
    Abstract: An apparatus with a second movable portion that moves along an x-axis direction and a z-axis direction and a first movable portion that only moves along the z-axis direction is disclosed. The apparatus is provided with a fixed portion fixed to a support portion, a plurality of first spring portions connected to the fixed portion, a first movable portion connected to the plurality of first spring portions, a second spring portion connected to the first movable portion, and a second movable portion connected to the second spring portion. A spring constant of each of the plurality of first spring portions in the z-axis direction is lower than spring constants of each of the plurality of first spring portions in the x-axis and a y-axis directions respectively, and a spring constant of the second spring portion in the x-axis direction is lower than spring constants of the second spring portion in the y-axis and the z-axis directions respectively.
    Type: Grant
    Filed: March 15, 2010
    Date of Patent: February 5, 2013
    Assignee: Kabushiki Kaisha Toyota Chuo Kenkyusho
    Inventors: Teruhisa Akashi, Yutaka Nonomura, Motohiro Fujiyoshi, Hirofumi Funabashi
  • Publication number: 20110232384
    Abstract: A structure having a first movable portion that is displaced perpendicular to a substrate surface and a second movable portion that is displaced parallel to the substrate surface is realized by a laminated structure, and manufacturing cost is reduced by employing a nested structure for the first movable portion and the second movable portion. The laminated structure is provided with a frame-like outer movable portion and an inner movable portion housed within the frame of the outer movable portion. A y spring is connected to the outer movable portion, and the outer movable portion is displaceably supported in a y-axis direction by the y spring at a height apart from an outer substrate. A z spring is connected to the inner movable portion, and the inner movable portion is displaceably supported in a z-axis direction by the z spring at a height apart from the outer substrate.
    Type: Application
    Filed: March 14, 2011
    Publication date: September 29, 2011
    Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Teruhisa AKASHI, Yutaka NONOMURA, Motohiro FUJIYOSHI, Hirofumi FUNABASHI, Yoshiyuki HATA, Yoshiteru OMURA
  • Publication number: 20110215428
    Abstract: In a MEMS structure, a first trench which penetrates the first layer, the second layer and the third layer is formed, and a second trench which penetrates the fifth layer, the forth layer and the third layer is formed. The first trench forms a first part of an outline of the movable portion in a view along the stacked direction. The second trench forms a second part of the outline of the movable portion in the view along the stacked direction. At least a part of the first trench overlaps with the first extending portion in the view along the stacked direction.
    Type: Application
    Filed: February 25, 2011
    Publication date: September 8, 2011
    Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Hirofumi FUNABASHI, Yutaka NONOMURA, Yoshiyuki HATA, Motohiro FUJIYOSHI, Teruhisa AKASHI, Yoshiteru OMURA
  • Patent number: 7905149
    Abstract: There is provided a physical sensor which ensures long-term reliability and can be miniaturized and increased in density, and a method of producing the same. A physical sensor includes a supporting substrate, an element substrate that includes a sensor element and is joined to the supporting substrate through an insulating layer, a glass cap that covers an area of the sensor element and is joined to the element substrate, and a built-in electrode that is electrically connected to the sensor element. The built-in electrode is formed in a through hole passing through the element substrate, the insulating layer and the supporting substrate. A portion of the glass cap that covers an area of the built-in electrode is anodically bonded to the element substrate.
    Type: Grant
    Filed: July 17, 2008
    Date of Patent: March 15, 2011
    Assignee: Hitachi, Ltd.
    Inventors: Kengo Suzuki, Takeshi Harada, Yasuo Osone, Masahide Hayashi, Teruhisa Akashi
  • Publication number: 20100236328
    Abstract: An apparatus with a second movable portion that moves along an x-axis direction and a z-axis direction and a first movable portion that only moves along the z-axis direction is disclosed. The apparatus is provided with a fixed portion fixed to a support portion, a plurality of first spring portions connected to the fixed portion, a first movable portion connected to the plurality of first spring portions, a second spring portion connected to the first movable portion, and a second movable portion connected to the second spring portion. A spring constant of each of the plurality of first spring portions in the z-axis direction is lower than spring constants of each of the plurality of first spring portions in the x-axis and a y-axis directions respectively, and a spring constant of the second spring portion in the x-axis direction is lower than spring constants of the second spring portion in the y-axis and the z-axis directions respectively.
    Type: Application
    Filed: March 15, 2010
    Publication date: September 23, 2010
    Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Teruhisa AKASHI, Yutaka NONOMURA, Motohiro FUJIYOSHI, Hirofumi FUNABASHI
  • Publication number: 20100219716
    Abstract: The micro device includes a support substrate, and a movable structure configured to move with respect to the support substrate. At least one of the support substrate and the movable structure is provided with at least one protrusion protruding towards the other of the support substrate and the movable structure. Further, a base portion extending into the one of the support substrate and the movable structure is provided integrally with the at least one protrusion. With this configuration, the protrusion is securely held by the base portion, and the detachment of the protrusion can therefore be prevented even after repeated collisions between the support substrate and the movable structure via the protrusion.
    Type: Application
    Filed: February 23, 2010
    Publication date: September 2, 2010
    Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Teruhisa AKASHI, Hirofumi FUNABASHI, Motohiro FUJIYOSHI, Yutaka NONOMURA
  • Patent number: 7662340
    Abstract: The invention is achieved by feeding a reagent using centrifugal force, without providing a valve for controlling the flow rate of the reagent in the reagent flow path. A chemical analyzer is used which comprises a structure that is supported so as to be rotatable, said structure comprising a capturing section for capturing specific chemical substances from a specimen, specimen containers and reagent containers including washing solution containers.
    Type: Grant
    Filed: December 28, 2001
    Date of Patent: February 16, 2010
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Yoshihiro Nagaoka, Naruo Watanabe, Teruhisa Akashi, Yuji Miyahara, Kei Takenaka, Tomoki Ohashi
  • Publication number: 20090020419
    Abstract: There is provided a physical sensor which ensures long-term reliability and can be miniaturized and increased in density, and a method of producing the same. A physical sensor includes a supporting substrate, an element substrate that includes a sensor element and is joined to the supporting substrate through an insulating layer, a glass cap that covers an area of the sensor element and is joined to the element substrate, and a built-in electrode that is electrically connected to the sensor element. The built-in electrode is formed in a through hole passing through the element substrate, the insulating layer and the supporting substrate. A portion of the glass cap that covers an area of the built-in electrode is anodically bonded to the element substrate.
    Type: Application
    Filed: July 17, 2008
    Publication date: January 22, 2009
    Applicant: Hitachi, Ltd.
    Inventors: Kengo SUZUKI, Takeshi Harada, Yasuo Osone, Masahide Hayashi, Teruhisa Akashi
  • Patent number: 7400568
    Abstract: An optical device wherein an optical component and a plurality of light emitting elements are mounted on an identical substrate, a level of a surface on which the optical component is mounted is different from that of a surface on which the light emitting elements are mounted by a step provided on the substrate, at least one plane vertical to the surface on which the optical component is mounted and located on a periphery of the substrate is opened, a reflecting surface, a transmitting surface or a diffraction grating surface of the optical component is provided along sides generated by the step provided in the substrate, optical axes of the plurality of light emitting elements of which polarization axes are in parallel with each other intersect with each other on the surface, and an exit light beam of the light emitting elements is emitted from the opened plane.
    Type: Grant
    Filed: November 28, 2003
    Date of Patent: July 15, 2008
    Assignees: Hitachi, Ltd., Hitachi Media Electronics Co., Ltd.
    Inventors: Seiichi Katou, Katsuhiko Kimura, Teruhisa Akashi, Kazuyuki Fukuda, Ryoji Okada, Hiromitsu Imamiya, Toshio Sugiyama, Hideo Suenaga
  • Patent number: 7273702
    Abstract: A nucleic acid refining apparatus, being ease in automation thereof, keeping high in contacting frequency between nucleic acid within a sample and a solid phase during nucleic acid capture processing, thereby proving high capturing rate, comprises: means for separating a liquid containing the nucleic acid therein from said sample through centrifugal force; means for transferring a reagent through the centrifugal force; means for producing a mixture liquid of said reagent transferred through the centrifugal force and a solution containing said nucleic acid therein; a carrier for capturing said nucleic acid; means for transferring said mixture liquid to said carrier through the centrifugal force; heating means for heating said carrier; and a holding means for separating and holding the reagent containing said nucleic acid eluting from said carrier, separating from other reagent, through different centrifugal.
    Type: Grant
    Filed: May 24, 2002
    Date of Patent: September 25, 2007
    Assignee: Hitachi, Ltd.
    Inventors: Teruhisa Akashi, Yukiko Ikeda, Yoshihiro Nagaoka, Naruo Watanabe, Yuji Miyahara
  • Publication number: 20070062282
    Abstract: A sensor structure using vibrating sensor elements which can detect an angular rate and accelerations in two axes at the same time is provided. 2 sets of vibration units which vibrate in out-of-phase mode (tunning-fork vibration) and include four vibrating sensor elements of the approximately same shape supported on a substrate in a vibratile state are provided and the vibrating sensor elements are disposed so that vibration axes of the vibration units cross each other at right angles. Each of the vibrating sensor elements includes a pair of detection units and adjustment units for adjusting a vibration frequency. The vibrating sensor elements constitute a combined sensor having supporting structure for supporting the vibrating sensor elements independently so that the vibrating sensor elements do not interfere with each other.
    Type: Application
    Filed: September 6, 2006
    Publication date: March 22, 2007
    Applicant: Hitachi, Ltd.
    Inventors: Teruhisa Akashi, Ryoji Okada, Masahide Hayashi, Kengo Suzuki
  • Patent number: 7119362
    Abstract: In an electric characteristic testing process corresponding to a process of the semiconductor apparatus manufacturing processes, in order to test a large area of the electrode pad of the body to be tested in a lump, an electric characteristic testing is performed by pressing a testing structure provided with electrically independent projections having a number equal to a number of conductor portions to be tested formed on an area to be tested of a body to be tested to the body to be tested.
    Type: Grant
    Filed: December 23, 2002
    Date of Patent: October 10, 2006
    Assignee: Renesas Technology Corp.
    Inventors: Ryuji Kono, Makoto Kitano, Hideo Miura, Hiroyuki Ota, Yoshishige Endo, Takeshi Harada, Masatoshi Kanamaru, Teruhisa Akashi, Atsushi Hosogane, Akihiko Ariga, Naoto Ban
  • Patent number: 6934448
    Abstract: An optical element-mounting substrate that makes it easy to optically couple the optical semiconductor element to the optical fiber or to the lens and that can be highly integrated while suppressing deterioration in the high-frequency signals. The optical element-mounting substrate for optically coupling the optical semiconductor element to the optical fiber through the lens, comprises an insulating film formed on the surface of the optical element-mounting substrate, grooves formed on the substrate for installing the optical fiber and the lens, a thin-film electrode formed on the insulating film, a thin-film capacitor and a thin-film temperature sensor arranged maintaining a distance from the thin-film electrode, and a solder film formed on the insulating film in a region where the optical semiconductor element is mounted so as to be electrically connected to the thin-film electrode.
    Type: Grant
    Filed: December 4, 2002
    Date of Patent: August 23, 2005
    Assignee: Hitachi, Ltd.
    Inventors: Teruhisa Akashi, Yoshishige Endou, Hideaki Takemori, Masatoshi Seki, Kazuhiro Hirose, Satoshi Higashiyama
  • Publication number: 20050095172
    Abstract: The invention is achieved by feeding a reagent using centrifugal force, without providing a valve for controlling the flow rate of the reagent in the reagent flow path. A chemical analyzer is used which comprises a structure that is supported so as to be rotatable, said structure comprising a capturing section for capturing specific chemical substances from a specimen, specimen containers and reagent containers including washing solution containers.
    Type: Application
    Filed: December 28, 2001
    Publication date: May 5, 2005
    Inventors: Yoshihiro Nagaoka, Naruo Watanabe, Teruhisa Akashi, Yuji Miyahara, Kei Takenaka, Tomoki Ohashi
  • Publication number: 20050084201
    Abstract: An optical bench for mounting an optical element includes a silicon substrate, a first dielectric substrate and a second dielectric substrate which are arranged on the silicon substrate, on the first substrate, there are arranged mounting sections of a laser diode, a wiring, and a mounting section of the photodiode, and on the silicon substrate, there is arranged a mounting section of a lens or an optical fiber, obtaining an optical bench, which is not easily curved with temperature, for mounting an optical element.
    Type: Application
    Filed: June 29, 2004
    Publication date: April 21, 2005
    Applicant: Hitachi, Ltd.
    Inventors: Teruhisa Akashi, Satoshi Higashiyama, Hideaki Takemori, Kazuhiro Hirose
  • Publication number: 20040116686
    Abstract: A nucleic acid refining apparatus, being ease in automation thereof, keeping high in contacting frequency between nucleic acid within a sample and a solid phase during nucleic acid capture processing, thereby proving high capturing rate, comprises: means for separating a liquid containing the nucleic acid therein from said sample through centrifugal force; means for transferring a reagent through the centrifugal force; means for producing a mixture liquid of said reagent transferred through the centrifugal force and a solution containing said nucleic acid therein; a carrier for capturing said nucleic acid; means for transferring said mixture liquid to said carrier through the centrifugal force; heating means for heating said carrier; and a holding means for separating and holding the reagent containing said nucleic acid eluting from said carrier, separating from other reagent, through different centrifugal.
    Type: Application
    Filed: November 19, 2003
    Publication date: June 17, 2004
    Inventors: Teruhisa Akashi, Yukiko Ikeda, Yoshihiro Nagaoka, Naruo Watanabe, Yuji Miyahara
  • Publication number: 20040105378
    Abstract: An optical device wherein an optical component and a plurality of light emitting elements are mounted on an identical substrate, a level of a surface on which the optical component is mounted is different from that of a surface on which the light emitting elements are mounted by a step provided on the substrate, at least one plane vertical to the surface on which the optical component is mounted and located on a periphery of the substrate is opened, a reflecting surface, a transmitting surface or a diffraction grating surface of the optical component is provided along sides generated by the step provided in the substrate, optical axes of the plurality of light emitting elements of which polarization axes are in parallel with each other intersect with each other on the surface, and an exit light beam of the light emitting elements is emitted from the opened plane.
    Type: Application
    Filed: November 28, 2003
    Publication date: June 3, 2004
    Inventors: Seiichi Katou, Katsuhiko Kimura, Teruhisa Akashi, Kazuyuki Fukuda, Ryoji Okada, Hiromitsu Imamiya, Toshio Sugiyama, Hideo Suenaga
  • Publication number: 20040005111
    Abstract: The present invention provides a collimator lens array with an accurate optical axis direction and a high positional accuracy. According to the present invention, a collimator lens array is formed by mounting fiber collimators in respective concaves formed on a bench at appropriate positions to form a collimator row and by stacking up a plurality of such benches. Concaves for engagement with positioning members are formed in each of the front and back surfaces of each bench. The bench positioning concaves are engaged with the corresponding positioning members to accurately position the benches. Thus, a collimator lens array is formed which has a high two-dimensional accuracy.
    Type: Application
    Filed: June 20, 2003
    Publication date: January 8, 2004
    Applicant: HITACHI, LTD.
    Inventors: Tadaaki Ishikawa, Ryoji Okada, Teruhisa Akashi, Takeshi Harada, Atsushi Kazama