Patents by Inventor Atsuya Ito
Atsuya Ito 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).
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Patent number: 11529078Abstract: This fluid evaluation device is provided with an irradiation unit for irradiating a fluid with light, a light reception unit for receiving scattered light from the fluid and outputting a light reception signal, and an estimation unit for estimating at least one from among flow rate and density by mapping input points, which are on a first plane defined by flow rate and frequency and are expressed by light amount information indicating the amount of scattered light included in the light reception signal and frequency information indicating a frequency for a beat signal resulting from the Doppler shifting of the light included in the light reception signal, onto a second plane defined by fluid flow rate and fluid density.Type: GrantFiled: December 5, 2016Date of Patent: December 20, 2022Assignees: AIR WATER BIODESIGN INC., NIKKISO COMPANY LIMITEDInventors: Kiyoshi Tateishi, Wataru Onodera, Atsuya Ito, Tomoya Murakami, Akari Agata, Genki Adachi
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Patent number: 11486892Abstract: This fluid measuring device is provided with: an irradiation unit that irradiates a fluid with light; a light receiving unit that receives light scattered by the fluid; a detecting unit that detects a backflow of the fluid on the basis of a light reception signal from the light receiving unit; and a calculating unit that calculates, on the basis of the detection result by the detection unit and the light reception signal from the light receiving unit, estimated fluid information indicating the flow rate or flow speed of the fluid. Accordingly, even when a backflow of the fluid temporarily occurs, the flow speed of the fluid can be precisely measured.Type: GrantFiled: October 25, 2016Date of Patent: November 1, 2022Assignees: AIR WATER BIODESIGN INC., NIKKISO COMPANY LIMITEDInventors: Kiyoshi Tateishi, Wataru Onodera, Atsuya Ito, Tomoya Murakami, Akari Agata, Genki Adachi
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Publication number: 20220099696Abstract: A flow velocity determining apparatus (10) includes an irradiating unit (20) that emits irradiation light (L1) toward a liquid mixture (BL) which contains a non-spherical solid (BC) and a liquid (BP) and flows through a flow path (TB), a detecting unit (30) that detects reflected light (L2) emitted by the irradiating unit (20) and reflected by the liquid mixture (BL) flowing through the flow path (TB), the detecting unit (32) being disposed on at least one side of an optical axis (L2A) of the reflected light (L2) when seen in a plan view of an imaginary plane including an optical axis (L1A) of the irradiation light (L1) and the optical axis (L2A) of the reflected light (L2), and a determining unit (40) that determines a flow velocity of the liquid mixture (BL) by using a light amount of the reflected light (L2) detected by the detecting unit (32).Type: ApplicationFiled: January 31, 2019Publication date: March 31, 2022Inventors: Ikuya KIKUCHI, Atsuya ITO, Ryohei KAGAWA
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Patent number: 11209359Abstract: A measuring apparatus is provided with: an irradiator configured to irradiate fluid with light; a first light receiver configured to receive a forward scatter component of scattered light scattered by the fluid; a second light receiver configured to receive a backscatter component of the scattered light; a third light receiver configured to receive a side scatter component of the scattered light; and an outputting device configured to output fluid information about the fluid, which is obtained on the basis of light receiving signals of the first light receiver, the second light receiver, and the third light receiver. According to this measuring apparatus, it is possible to output accurate fluid information because of the use of the forward scatter component, the backscatter component, and the side scatter component of the scattered light.Type: GrantFiled: September 29, 2017Date of Patent: December 28, 2021Assignees: PIONEER CORPORATION, NIKKISO COMPANY LIMITEDInventors: Ikuya Kikuchi, Atsuya Ito, Ryohei Kagawa, Tomoya Murakami, Akari Agata, Genki Adachi
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Publication number: 20200264100Abstract: A measuring apparatus is provided with: an irradiator configured to irradiate fluid with light; a first light receiver configured to receive a forward scatter component of scattered light scattered by the fluid; a second light receiver configured to receive a backscatter component of the scattered light; a third light receiver configured to receive a side scatter component of the scattered light; and an outputting device configured to output fluid information about the fluid, which is obtained on the basis of light receiving signals of the first light receiver, the second light receiver, and the third light receiver. According to this measuring apparatus, it is possible to output accurate fluid information because of the use of the forward scatter component, the backscatter component, and the side scatter component of the scattered light.Type: ApplicationFiled: September 29, 2017Publication date: August 20, 2020Inventors: Ikuya KIKUCHI, Atsuya ITO, Ryohei KAGAWA, Tomoya MURAKAMI, Akari AGATA, Genki ADACHI
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Publication number: 20200077934Abstract: This fluid evaluation device is provided with an irradiation unit for irradiating a fluid with light, a light reception unit for receiving scattered light from the fluid and outputting a light reception signal, and an estimation unit for estimating at least one from among flow rate and density by mapping input points, which are on a first plane defined by flow rate and frequency and are expressed by light amount information indicating the amount of scattered light included in the light reception signal and frequency information indicating a frequency for a beat signal resulting from the Doppler shifting of the light included in the light reception signal, onto a second plane defined by fluid flow rate and fluid density.Type: ApplicationFiled: December 5, 2016Publication date: March 12, 2020Inventors: Kiyoshi TATEISHI, Wataru ONODERA, Atsuya ITO, Tomoya MURAKAMI, Akari AGATA, Genki ADACHI
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Patent number: 10578553Abstract: These measurement devices are each provided with: irradiation unit that irradiate a fluid with light; a light-receiving unit that receives light scattered by the fluid; an acquiring unit that acquires fluid information which indicates the flow rate or the flow velocity of the fluid; and a control unit that controls the irradiation unit on the basis of the fluid information.Type: GrantFiled: November 29, 2016Date of Patent: March 3, 2020Assignees: PIONEER CORPORATION, NIKKISO COMPANY LIMITEDInventors: Mitsuru Sato, Kiyoshi Tateishi, Wataru Onodera, Atsuya Ito, Tomoya Murakami, Akari Agata, Genki Adachi
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Publication number: 20190293557Abstract: These measurement devices are each provided with: irradiation unit that irradiate a fluid with light; a light-receiving unit that receives light scattered by the fluid; an acquiring unit that acquires fluid information which indicates the flow rate or the flow velocity of the fluid; and a control unit that controls the irradiation unit on the basis of the fluid information.Type: ApplicationFiled: November 29, 2016Publication date: September 26, 2019Inventors: Mitsuru SATO, Kiyoshi TATEISHI, Wataru ONODERA, Atsuya ITO, Tomoya MURAKAMI, Akari AGATA, Genki ADACHI
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Publication number: 20190277875Abstract: This fluid measuring device is provided with: an irradiation unit that irradiates a fluid with light; a light receiving unit that receives light scattered by the fluid; a detecting unit that detects a backflow of the fluid on the basis of a light reception signal from the light receiving unit; and a calculating unit that calculates, on the basis of the detection result by the detection unit and the light reception signal from the light receiving unit, estimated fluid information indicating the flow rate or flow speed of the fluid. Accordingly, even when a backflow of the fluid temporarily occurs, the flow speed of the fluid can be precisely measured.Type: ApplicationFiled: October 25, 2016Publication date: September 12, 2019Applicants: PIONEER CORPORATION, NIKKISO COMPANY LIMITEDInventors: Kiyoshi TATEISHI, Wataru ONODERA, Atsuya ITO, Tomoya MURAKAMI, Akari AGATA, Genki ADACHI
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Patent number: 9237856Abstract: A light detecting apparatus includes: a first photoelectric conversion element unit (110) and a second photoelectric conversion element unit (120) each of which converts input light to an electric current and output it; an optical current transducer unit (100) for outputting, as a detected current, a differential current between an electric current outputted by the first photoelectric conversion element unit and an electric current outputted by the second photoelectric conversion element unit; and a first current/voltage converting unit (200) for amplifying the detected current outputted from the optical current transducer unit, converting it to a voltage signal, and outputting the voltage signal.Type: GrantFiled: June 24, 2010Date of Patent: January 19, 2016Assignee: PIONEER CORPORATIONInventors: Kiyoshi Tateishi, Atsuya Ito, Yoshinori Kimura
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Publication number: 20150080673Abstract: A blood pressure estimation apparatus (1) is provided with: a blood pressure measuring device (11) which measures a blood pressure (BPm) of a living body every first period; a blood flow measuring device (12) which measures a blood flow volume (BF) of the living body every second period which is shorter than the first period; and a blood pressure estimating device (13) which estimates the blood pressure (BPc) every third period which is shorter than the first period, on the basis of the blood pressure which is measured by the blood pressure measuring device and the blood flow volume which is measured by the blood flow measuring device.Type: ApplicationFiled: April 20, 2012Publication date: March 19, 2015Applicant: PIONEER CORPORATIONInventors: Shinya Hashimoto, Kiyoshi Tateishi, Atsuya Ito, Hiroyuki Ishihara, Masaki Goma
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Publication number: 20130090564Abstract: A light detecting apparatus includes: a first photoelectric conversion element unit (110) and a second photoelectric conversion element unit(120) each of which converts input light to an electric current and output it; an optical current transducer unit (100) for outputting, as a detected current, a differential current between an electric current outputted by the first photoelectric conversion element unit and an electric current outputted by the second photoelectric conversion element unit; and a first current/voltage converting unit (200) for amplifying the detected current outputted from the optical current transducer unit, converting it to a voltage signal, and outputting the voltage signal.Type: ApplicationFiled: June 24, 2010Publication date: April 11, 2013Applicant: PIONEER CORPORATIONInventors: Kiyoshi Tateishi, Atsuya Ito, Yoshinori Kimura
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Publication number: 20080170003Abstract: The areas of the transparent electrodes of the row electrodes constituting each row electrode pair facing the required discharge cells vary in accordance with the positions of the corresponding discharge cells within the panel screen. Required column electrodes of a plurality of column electrodes, which are provided for allowing an opposing discharge to be initiated across the discharge space between the column electrode and a row electrode of each row electrode pair in each discharge cell of the PDP, have portions facing the transparent electrodes of the row electrodes and provided with widened portions. The areas of the widened portions vary in accordance with the positions of the corresponding discharge cells within the panel screen.Type: ApplicationFiled: November 28, 2007Publication date: July 17, 2008Inventors: Atsuya Ito, Yasuhiro Torisaki, Tetsuya Matsumoto
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Patent number: 7312468Abstract: The semiconductor light-emitting element uses a compound semiconductor quantum well structure comprising a well layer, and barrier layers between which the well layer is sandwiched, as an active layer. In the adjacent well layer and barrier layers of the semiconductor light-emitting element, the well layer has in part a doped well region to which an n-type impurity is added at the interface with the barrier layer on the electron injection side, and in the vicinity of this interface, and the barrier layer has a doped barrier region to which the n-type impurity is added at least at the interface and in the vicinity of this interface.Type: GrantFiled: November 12, 2003Date of Patent: December 25, 2007Assignee: Pioneer CorporationInventors: Atushi Watanabe, Atsuya Ito, Hirokazu Takahashi, Yoshinori Kimura, Mamoru Miyachi
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Publication number: 20060027814Abstract: The semiconductor light-emitting element uses a compound semiconductor quantum well structure comprising a well layer, and barrier layers between which the well layer is sandwiched, as an active layer. In the adjacent well layer and barrier layers of the semiconductor light-emitting element, the well layer has in part a doped well region to which an n-type impurity is added at the interface with the barrier layer on the electron injection side, and in the vicinity of this interface, and the barrier layer has a doped barrier region to which the n-type impurity is added at least at the interface and in the vicinity of this interface.Type: ApplicationFiled: November 12, 2003Publication date: February 9, 2006Inventors: Atsushi Watanabe, Atsuya Ito, Hirokazu Takahashi, Yoshinori Kimura, Mamoru Miyachi
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Patent number: 6795471Abstract: A nitride compound semiconductor laser, of which driving voltage is low and transverse mode of light is stable, having a plurality of crystal layers made of a group III nitride compound semiconductor expressed by the formula (AlGa1-x)1-yInyN (0≦x≦1, 0≦y≦1). The layers include an active layer-side guide layer which is adjacent to an active layer in the crystal layers of the group III nitride compound semiconductor and made of Alx′Ga1-x′-y′Iny′N (0≦x′≦1, 0≦y′≦1), a current constricting AlN layer deposited on said guide layer and having a stripe-shape aperture, an electrode-side guide layer made of Alx″Ga1-x″-y″Iny″N (0≦x″≦1, 0≦y″≦1) and deposited filling the aperture of the current constricting layer, and a clad layer made of AluGa1-u-vInvN (0≦u≦1, 0≦v≦1) and deposited on the electrode-side guide layer.Type: GrantFiled: April 8, 2002Date of Patent: September 21, 2004Assignee: Pioneer CorporationInventors: Atsushi Watanabe, Yoshinori Kimura, Hiroyuki Ota, Toshiyuki Tanaka, Hirokazu Takahashi, Mamoru Miyachi, Atsuya Ito
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Publication number: 20020150136Abstract: A nitride compound semiconductor laser, of which driving voltage is low and transverse mode of light is stable, having a plurality of crystal layers made of a group III nitride compound semiconductor expressed by the formula (AlxGa1-x)1-yInyN (0≦x≦1, 0≦y≦1). The layers include an active layer-side guide layer which is adjacent to an active layer in the crystal layers of the group III nitride compound semiconductor and made of Alx′Ga1-x′-y′Iny′N (0≦x′≦1, 0≦y′≦1), a current constricting AlN layer deposited on said guide layer and having a stripe-shape aperture, an electrode-side guide layer made of Alx″Ga1-x″-y″Iny″N (0≦x″≦1, 0≦y″≦1) and deposited filling the aperture of the current constricting layer, and a clad layer made of AluGa1-u-vInvN (0≦u≦1, 0≦v≦1) and deposited on the electrode-side guide layer.Type: ApplicationFiled: April 8, 2002Publication date: October 17, 2002Applicant: PIONEER CORPORATIONInventors: Atsushi Watanabe, Yoshinori Kimura, Hiroyuki Ota, Toshiyuki Tanaka, Hirokazu Takahashi, Mamoru Miyachi, Atsuya Ito