Patents by Inventor Kazuhiko Amano
Kazuhiko Amano 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: 10872020Abstract: A storage apparatus includes, a determination circuit that determines a path between one of a plurality of backup power sources and one of a plurality of backup target circuits each of the plurality of backup power sources including a memory based on configuration information, state information of the storage apparatus, and setting information of performance request for the storage apparatus, a plurality of switches arranged between the plurality of backup target circuits and the plurality of backup power sources, and a control circuit that controls the switches to couple the backup target circuit to the backup power source via the path determined by the determination circuit.Type: GrantFiled: October 16, 2018Date of Patent: December 22, 2020Assignee: FUJITSU LIMITEDInventor: Kazuhiko Amano
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Publication number: 20190121708Abstract: A storage apparatus includes, a determination circuit that determines a path between one of a plurality of backup power sources and one of a plurality of backup target circuits each of the plurality of backup power sources including a memory based on configuration information, state information of the storage apparatus, and setting information of performance request for the storage apparatus, a plurality of switches arranged between the plurality of backup target circuits and the plurality of backup power sources, and a control circuit that controls the switches to couple the backup target circuit to the backup power source via the path determined by the determination circuit.Type: ApplicationFiled: October 16, 2018Publication date: April 25, 2019Applicant: FUJITSU LIMITEDInventor: KAZUHIKO AMANO
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Patent number: 10027532Abstract: A storage system includes a storage apparatus and a server apparatus. The storage apparatus includes a switching unit, a first storage control apparatus, and a second storage control apparatus. The first storage control apparatus includes a storage unit and a control unit. The storage unit stores path connection information. On detecting a restart condition of the second storage control apparatus, the control unit switches a second port from being connected at the switching unit to the second storage control apparatus on a second path to being connected to the first storage control apparatus on a third path, based on the path connection information, and then instructs the second storage control apparatus to restart.Type: GrantFiled: June 17, 2016Date of Patent: July 17, 2018Assignee: FUJITSU LIMITEDInventor: Kazuhiko Amano
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Publication number: 20160380804Abstract: A storage system includes a storage apparatus and a server apparatus. The storage apparatus includes a switching unit, a first storage control apparatus, and a second storage control apparatus. The first storage control apparatus includes a storage unit and a control unit. The storage unit stores path connection information. On detecting a restart condition of the second storage control apparatus, the control unit switches a second port from being connected at the switching unit to the second storage control apparatus on a second path to being connected to the first storage control apparatus on a third path, based on the path connection information, and then instructs the second storage control apparatus to restart.Type: ApplicationFiled: June 17, 2016Publication date: December 29, 2016Applicant: FUJITSU LIMITEDInventor: KAZUHIKO AMANO
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Patent number: 9464983Abstract: A concentration determination apparatus may determine a concentration of a target component in an arbitrary layer of an observed object including a plurality of light scattering medium layers. The concentration determination apparatus may include an irradiation unit, light scattering medium layer selection unit, a light receiving unit, a light intensity acquisition unit, an optical absorption coefficient calculation unit, and a concentration calculation unit.Type: GrantFiled: July 5, 2011Date of Patent: October 11, 2016Assignees: SEIKO EPSON CORPORATION, NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITYInventors: Kazuhiko Amano, Koichi Shimizu
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Patent number: 9370323Abstract: A concentration determination apparatus may include: an irradiation unit that irradiates short-pulsed light to an observed object; a light receiving unit that receives light backscattered from the observed object; a light intensity acquisition unit that acquires an intensity distribution of the light; an optical path length distribution storage unit that stores a model of an optical path length distribution in each layer of the plurality of layers of the short-pulsed light; an optical path length acquisition unit that acquires the optical path length distribution of each layer; a time-resolved waveform storage unit that stores a model of a time-resolved waveform; a light intensity model acquisition unit that acquires a light intensity model; an integral interval calculation unit that calculates a time range of an area; an optical absorption coefficient calculation and acquisition unit that calculates and acquires an optical absorption coefficient; and a concentration calculation unit that calculates the conceType: GrantFiled: October 17, 2011Date of Patent: June 21, 2016Assignees: SEIKO EPSON CORPORATION, NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITYInventors: Kazuhiko Amano, Koichi Shimizu
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Patent number: 9332936Abstract: A concentration determination apparatus in accordance with exemplary embodiments has a storage body and a temperature control plate. The concentration determination apparatus may also have a first and second input light guide and a first and second light receiving light guide, and an operational unit that contains an absorbance calculation device for calculating an absorbance of liquid and living body tissue and a concentration calculation device for comparing the absorbance of the liquid and the living body tissue.Type: GrantFiled: March 24, 2015Date of Patent: May 10, 2016Assignee: SEIKO EPSON CORPORATIONInventors: Kazuhiro Nishida, Kazuhiko Amano, Koichi Shimizu
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Patent number: 9183433Abstract: A biometric authentication system includes: an image acquisition unit for acquiring an image of a living body; a light source with a predetermined wavelength band; an authentication information storage unit for, if light is emitted by the light source, setting a predetermined distance for a first distance to a first image acquired by the image acquisition unit in a depth direction so that quality of the first image is improved, extracting a first feature to be used to perform biometric authentication from the first image whose quality has been improved, and storing authentication information regarding the first feature; a feature extraction unit for, if light is emitted by the light source when performing authentication, setting the predetermined distance for a second distance to a second image acquired by the image acquisition unit in the depth direction so that quality of the second image is improved, and extracting a second feature for biometric authentication from the second image whose quality has been iType: GrantFiled: April 16, 2014Date of Patent: November 10, 2015Assignee: Seiko Epson CorporationInventor: Kazuhiko Amano
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Publication number: 20150196234Abstract: A first temperature sensor is formed in a first measurement area so that a measurement surface thereof is exposed to an inner surface of a liquid tank (a storage body). The first temperature sensor can detect a temperature of liquid injected into the liquid tank. Further, a first input part is formed in the first measurement area so that an output surface thereof is exposed to the inner surface of the liquid tank.Type: ApplicationFiled: March 24, 2015Publication date: July 16, 2015Inventors: Kazuhiro NISHIDA, Kazuhiko AMANO, Koichi SHIMIZU
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Patent number: 9030654Abstract: A first temperature sensor is formed in a first measurement area. A first input part is formed in the first measurement area so that an output surface thereof is exposed to the inner surface of the liquid tank. A first light receiving part receives a reference light through the liquid from the first input part. A second input part causes a second incident light to be incident on a living body. A second light receiving part receives a measurement light from the second input part. Based on the light intensity of the reference light and the measurement light, an absorbance calculation device can detect the absorbance of the liquid and living body tissue. A concentration calculation device compares the absorbance of the liquid with the absorbance of the living body tissue and calculates a concentration of a measured component contained in the living body tissue.Type: GrantFiled: June 11, 2012Date of Patent: May 12, 2015Assignees: Seiko Epson Corporation, National University Corporation Hokkaido UniversityInventors: Kazuhiro Nishida, Kazuhiko Amano, Koichi Shimizu
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Patent number: 8995726Abstract: A biometric authentication system includes: an image acquisition unit for acquiring an image of a living body; a light source with a predetermined wavelength band; an authentication information storage unit for, if light is emitted by the light source, setting a predetermined distance for a first distance to a first image acquired by the image acquisition unit in a depth direction so that quality of the first image is improved, extracting a first feature to be used to perform biometric authentication from the first image whose quality has been improved, and storing authentication information regarding the first feature; a feature extraction unit for, if light is emitted by the light source when performing authentication, setting the predetermined distance for a second distance to a second image acquired by the image acquisition unit in the depth direction so that quality of the second image is improved, and extracting a second feature for biometric authentication from the second image whose quality has been iType: GrantFiled: April 3, 2008Date of Patent: March 31, 2015Assignee: Seiko Epson CorporationInventor: Kazuhiko Amano
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Patent number: 8933404Abstract: A concentration measurement method by an absorptiometric method which measures a concentration of a first solute component dissolved in a solution, in which the first solute component interacts with a solvent, includes: referring to an absorption coefficient (?aw(?)) of the solvent; measuring an absorption coefficient (?a(?)) of a first sample material, after an interaction between the solvent and the first solute component has occurred; and obtaining an unknown volume fraction (vg) of the first solute component and a volume fraction (vw) of the solvent, based on the absorption coefficient (?aw(?)) of the solvent, a apparent absorption coefficient (??ag(?)) of the first solute component, and the absorption coefficient (?a(?)) of the first sample material.Type: GrantFiled: March 21, 2012Date of Patent: January 13, 2015Assignees: Seiko Epson Corporation, National University Corporation Hokkaido UniversityInventors: Kazuhiro Nishida, Kazuhiko Amano, Koichi Shimizu
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Publication number: 20140226872Abstract: A biometric authentication system includes: an image acquisition unit for acquiring an image of a living body; a light source with a predetermined wavelength band; an authentication information storage unit for, if light is emitted by the light source, setting a predetermined distance for a first distance to a first image acquired by the image acquisition unit in a depth direction so that quality of the first image is improved, extracting a first feature to be used to perform biometric authentication from the first image whose quality has been improved, and storing authentication information regarding the first feature; a feature extraction unit for, if light is emitted by the light source when performing authentication, setting the predetermined distance for a second distance to a second image acquired by the image acquisition unit in the depth direction so that quality of the second image is improved, and extracting a second feature for biometric authentication from the second image whose quality has been iType: ApplicationFiled: April 16, 2014Publication date: August 14, 2014Applicant: SEIKO EPSON CORPORATIONInventor: Kazuhiko Amano
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Patent number: 8570148Abstract: A biological information acquiring apparatus includes light source units configured to irradiate light onto a living body, a light receiving unit including a light receiving element, the light receiving element including pixels, each of the pixels receiving at least one of a transmission light and a reflection light, and a nonuniform filter disposed on the light receiving unit and on a light path of at least one of the transmission light and the reflection light, the nonuniform filter having a light transmittance that varies with area of the nonuniform filter. The light source units are disposed around the light receiving unit discretely, and the light transmittance of the nonuniform filter is set so that a light intensity of at least one of the transmission light and the reflection light is uniform over an entire surface of the light receiving element.Type: GrantFiled: March 10, 2010Date of Patent: October 29, 2013Assignees: Seiko Epson Corporation, National University Corporation Hokkaido UniversityInventors: Kazuhiko Amano, Koichi Shimizu
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Publication number: 20130073220Abstract: A concentration measurement method of measuring at least including processes of: causing a set of lights having first and second different wavelengths in which change amounts of absorption coefficients of the water due to a change in water temperature are substantially the same to be incident on the solution, and measuring an absorption coefficient in the first wavelength and a absorption coefficient in the second wavelength in the solution; referencing an absorption coefficient of the water in the first wavelength and an absorption coefficient of the water in the second wavelength; referencing an absorption coefficient of the solute in the first wavelength and an absorption coefficient of the solute in the second wavelength; and applying a simultaneous equation to obtain a volume fraction of an unknown solute and a volume fraction of the water based on the above absorption coefficients.Type: ApplicationFiled: September 13, 2012Publication date: March 21, 2013Applicants: NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY, SEIKO EPSON CORPORATIONInventors: Kazuhiro NISHIDA, Kazuhiko AMANO, Koichi SHIMIZU
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Publication number: 20120330110Abstract: A first temperature sensor is formed in a first measurement area so that a measurement surface thereof is exposed to an inner surface of a liquid tank (a storage body). The first temperature sensor can detect a temperature of liquid injected into the liquid tank. Further, a first input part is formed in the first measurement area so that an output surface thereof is exposed to the inner surface of the liquid tank.Type: ApplicationFiled: June 11, 2012Publication date: December 27, 2012Applicants: NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY, SEIKO EPSON CORPORATIONInventors: Kazuhiro Nishida, Kazuhiko Amano, Koichi Shimizu
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Publication number: 20120242979Abstract: A concentration measurement method by an absorptiometric method which measures a concentration of a first solute component dissolved in a solution, in which the first solute component interacts with a solvent, includes: referring to an absorption coefficient (?aw(?)) of the solvent; measuring an absorption coefficient (?a(?)) of a first sample material, after an interaction between the solvent and the first solute component has occurred; and obtaining an unknown volume fraction (vg) of the first solute component and a volume fraction (vw) of the solvent, based on the absorption coefficient (?aw(?)) of the solvent, a apparent absorption coefficient (??ag(?)) of the first solute component, and the absorption coefficient (?a(?)) of the first sample material.Type: ApplicationFiled: March 21, 2012Publication date: September 27, 2012Applicants: NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY, SEIKO EPSON CORPORATIONInventors: Kazuhiro NISHIDA, Kazuhiko AMANO, Koichi SHIMIZU
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Publication number: 20120101347Abstract: A concentration determination apparatus may include: an irradiation unit that irradiates short-pulsed light to an observed object; a light receiving unit that receives light backscattered from the observed object; a light intensity acquisition unit that acquires an intensity distribution of the light; an optical path length distribution storage unit that stores a model of an optical path length distribution in each layer of the plurality of layers of the short-pulsed light; an optical path length acquisition unit that acquires the optical path length distribution of each layer; a time-resolved waveform storage unit that stores a model of a time-resolved waveform; a light intensity model acquisition unit that acquires a light intensity model; an integral interval calculation unit that calculates a time range of an area; an optical absorption coefficient calculation and acquisition unit that calculates and acquires an optical absorption coefficient; and a concentration calculation unit that calculates the conceType: ApplicationFiled: October 17, 2011Publication date: April 26, 2012Applicants: NATIONAL UNVERSITY CORPORATION HOKKAIDO UNIVERSITY, SEIKO EPSON CORPORATIONInventors: Kazuhiko AMANO, Koichi SHIMIZU
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Patent number: 8144938Abstract: A biological information acquisition device that acquires information from a biological body by irradiating the biological body with light, the device comprises: a light source irradiating the biological body with light; a plurality of light receiving elements receiving one of passed light and reflected light from the biological body irradiated with light by the light source; and an inhomogeneous neutral density filter disposed on the plurality of light receiving elements and in a light path of one of passed light and reflected light. An optical transmittance of the inhomogeneous neutral density filter is set so that intensity of each light component received by light receiving elements is evened out as a whole.Type: GrantFiled: May 15, 2007Date of Patent: March 27, 2012Assignees: Seiko Epson Corporation, Hokkaido UniversityInventors: Kazuhiko Amano, Koichi Shimizu
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Publication number: 20120010477Abstract: A concentration determination apparatus may determine a concentration of a target component in an arbitrary layer of an observed object including a plurality of light scattering medium layers. The concentration determination apparatus may include an irradiation unit, light scattering medium layer selection unit, a light receiving unit, a light intensity acquisition unit, an optical absorption coefficient calculation unit, and a concentration calculation unit.Type: ApplicationFiled: July 5, 2011Publication date: January 12, 2012Applicants: NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY, SEIKO EPSON CORPORATIONInventors: Kazuhiko AMANO, Koichi SHIMIZU