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: 20130049212Abstract: 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: ApplicationFiled: August 28, 2012Publication date: February 28, 2013Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Yoshiyuki HATA, Yutaka NONOMURA, Teruhisa AKASHI, Hirofumi FUNABASHI, Motohiro FUJIYOSHI, Yoshiteru OMURA
-
Patent number: 8368196Abstract: 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: GrantFiled: February 23, 2010Date of Patent: February 5, 2013Assignee: Kabushiki Kaisha Toyota Chuo KenkyushoInventors: Teruhisa Akashi, Hirofumi Funabashi, Motohiro Fujiyoshi, Yutaka Nonomura
-
Patent number: 8365597Abstract: 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: GrantFiled: March 15, 2010Date of Patent: February 5, 2013Assignee: Kabushiki Kaisha Toyota Chuo KenkyushoInventors: Teruhisa Akashi, Yutaka Nonomura, Motohiro Fujiyoshi, Hirofumi Funabashi
-
Publication number: 20110232384Abstract: 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: ApplicationFiled: March 14, 2011Publication date: September 29, 2011Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Teruhisa AKASHI, Yutaka NONOMURA, Motohiro FUJIYOSHI, Hirofumi FUNABASHI, Yoshiyuki HATA, Yoshiteru OMURA
-
Publication number: 20110215428Abstract: 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: ApplicationFiled: February 25, 2011Publication date: September 8, 2011Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Hirofumi FUNABASHI, Yutaka NONOMURA, Yoshiyuki HATA, Motohiro FUJIYOSHI, Teruhisa AKASHI, Yoshiteru OMURA
-
Patent number: 7905149Abstract: 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: GrantFiled: July 17, 2008Date of Patent: March 15, 2011Assignee: Hitachi, Ltd.Inventors: Kengo Suzuki, Takeshi Harada, Yasuo Osone, Masahide Hayashi, Teruhisa Akashi
-
Publication number: 20100236328Abstract: 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: ApplicationFiled: March 15, 2010Publication date: September 23, 2010Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Teruhisa AKASHI, Yutaka NONOMURA, Motohiro FUJIYOSHI, Hirofumi FUNABASHI
-
Publication number: 20100219716Abstract: 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: ApplicationFiled: February 23, 2010Publication date: September 2, 2010Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Teruhisa AKASHI, Hirofumi FUNABASHI, Motohiro FUJIYOSHI, Yutaka NONOMURA
-
Patent number: 7662340Abstract: 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: GrantFiled: December 28, 2001Date of Patent: February 16, 2010Assignee: Hitachi High-Technologies CorporationInventors: Yoshihiro Nagaoka, Naruo Watanabe, Teruhisa Akashi, Yuji Miyahara, Kei Takenaka, Tomoki Ohashi
-
Publication number: 20090020419Abstract: 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: ApplicationFiled: July 17, 2008Publication date: January 22, 2009Applicant: Hitachi, Ltd.Inventors: Kengo SUZUKI, Takeshi Harada, Yasuo Osone, Masahide Hayashi, Teruhisa Akashi
-
Patent number: 7400568Abstract: 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: GrantFiled: November 28, 2003Date of Patent: July 15, 2008Assignees: 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: 7273702Abstract: 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: GrantFiled: May 24, 2002Date of Patent: September 25, 2007Assignee: Hitachi, Ltd.Inventors: Teruhisa Akashi, Yukiko Ikeda, Yoshihiro Nagaoka, Naruo Watanabe, Yuji Miyahara
-
Publication number: 20070062282Abstract: 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: ApplicationFiled: September 6, 2006Publication date: March 22, 2007Applicant: Hitachi, Ltd.Inventors: Teruhisa Akashi, Ryoji Okada, Masahide Hayashi, Kengo Suzuki
-
Patent number: 7119362Abstract: 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: GrantFiled: December 23, 2002Date of Patent: October 10, 2006Assignee: 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: 6934448Abstract: 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: GrantFiled: December 4, 2002Date of Patent: August 23, 2005Assignee: Hitachi, Ltd.Inventors: Teruhisa Akashi, Yoshishige Endou, Hideaki Takemori, Masatoshi Seki, Kazuhiro Hirose, Satoshi Higashiyama
-
Publication number: 20050095172Abstract: 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: ApplicationFiled: December 28, 2001Publication date: May 5, 2005Inventors: Yoshihiro Nagaoka, Naruo Watanabe, Teruhisa Akashi, Yuji Miyahara, Kei Takenaka, Tomoki Ohashi
-
Publication number: 20050084201Abstract: 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: ApplicationFiled: June 29, 2004Publication date: April 21, 2005Applicant: Hitachi, Ltd.Inventors: Teruhisa Akashi, Satoshi Higashiyama, Hideaki Takemori, Kazuhiro Hirose
-
Publication number: 20040116686Abstract: 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: ApplicationFiled: November 19, 2003Publication date: June 17, 2004Inventors: Teruhisa Akashi, Yukiko Ikeda, Yoshihiro Nagaoka, Naruo Watanabe, Yuji Miyahara
-
Publication number: 20040105378Abstract: 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: ApplicationFiled: November 28, 2003Publication date: June 3, 2004Inventors: Seiichi Katou, Katsuhiko Kimura, Teruhisa Akashi, Kazuyuki Fukuda, Ryoji Okada, Hiromitsu Imamiya, Toshio Sugiyama, Hideo Suenaga
-
Publication number: 20040005111Abstract: 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: ApplicationFiled: June 20, 2003Publication date: January 8, 2004Applicant: HITACHI, LTD.Inventors: Tadaaki Ishikawa, Ryoji Okada, Teruhisa Akashi, Takeshi Harada, Atsushi Kazama