Patents by Inventor Akihito Kamei
Akihito Kamei 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: 8399259Abstract: The measuring device of the invention includes: a first container and a second container for holding a sample; and an optical measurement part for carrying out an optical measurement. The first container has a first sample supply inlet for supplying a sample containing an analyte to the first container and at least one electrode. The second container has a second sample supply inlet for supplying the sample to the second container and a reagent holding part for holding a reagent for the optical measurement.Type: GrantFiled: April 28, 2010Date of Patent: March 19, 2013Assignee: Panasonic CorporationInventors: Atsushi Fukunaga, Takahiro Nakaminami, Akihito Kamei
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Patent number: 8343776Abstract: Provided is an immunoassay method that can reduce the effort of establishing an immunoassay system due to not needing two or more antibodies, and that is applicable to not only high molecular weight antigens but also to low molecular weight antigens such as hapten. The method is for releasing, from a surface of a base plate, immunoglobulin G antibody bound to the surface via protein A. The method includes the following steps (A) and (B): (A) a step of preparing the base plate having the surface to which immunoglobulin G antibody produced by a producer cell line of deposit No. FERM BP-10459 is bound via protein A; and (B) a step of providing a solution (from pH 6 to pH 8.9; preferably, from pH 7.4 to pH 8.9) containing human serum albumin onto the surface so as to release the immunoglobulin G antibody from the protein A.Type: GrantFiled: August 31, 2011Date of Patent: January 1, 2013Assignee: Panasonic CorporationInventors: Junko Wakai, Akihito Kamei, Jin Muraoka
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Patent number: 8147406Abstract: In a vital data utilization system (100), measurement systems (110) include a measurement unit (111) measuring the vital data of subjects, a clock unit detecting each measurement time at which vital data is measured and a communication unit (112) sending the vital data including measurement time to a server (120). Further, a server (120) includes a communication unit (121) receiving pieces of vital data from measurement systems (110), a vital data storage unit (126) in which vital data is stored, a value-added information making unit (123) making the value-added information indicating the geographical distribution of the vital data or the changes over time of the geographical distributions of the vital data based on vital data stored in the vital data storage unit (126) and a communication unit (121) providing the made value-added information to the measurement systems (110) and the PCs of service destinations.Type: GrantFiled: June 10, 2004Date of Patent: April 3, 2012Assignee: Panasonic CorporationInventors: Tatsurou Kawamura, Akihito Kamei
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Publication number: 20110312104Abstract: Provided is an immunoassay method that can reduce the effort of establishing an immunoassay system due to not needing two or more antibodies, and that is applicable to not only high molecular weight antigens but also to low molecular weight antigens such as hapten. The method is for releasing, from a surface of a base plate, immunoglobulin G antibody bound to the surface via protein A. The method includes the following steps (A) and (B): (A) a step of preparing the base plate having the surface to which immunoglobulin G antibody produced by a producer cell line of deposit No. FERM BP-10459 is bound via protein A; and (B) a step of providing a solution (from pH 6 to pH 8.9; preferably, from pH 7.4 to pH 8.9) containing human serum albumin onto the surface so as to release the immunoglobulin G antibody from the protein A.Type: ApplicationFiled: August 31, 2011Publication date: December 22, 2011Applicant: Panasonic CorporationInventors: Junko WAKAI, Akihito Kamei, Jin Muraoka
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Publication number: 20100273270Abstract: The measuring device of the invention includes: a first container and a second container for holding a sample; and an optical measurement part for carrying out an optical measurement. The first container has a first sample supply inlet for supplying a sample containing an analyte to the first container and at least one electrode. The second container has a second sample supply inlet for supplying the sample to the second container and a reagent holding part for holding a reagent for the optical measurement.Type: ApplicationFiled: April 28, 2010Publication date: October 28, 2010Applicant: Panasonic CorporationInventors: Atsushi FUKUNAGA, Takahiro NAKAMINAMI, Akihito KAMEI
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Patent number: 7790470Abstract: A method capable of stirring a liquid sample and a reagent promptly and easily includes the following steps (A) and (B). In step (A), using a cell including: a liquid sample retaining section having a plurality of particles; and a liquid sample supply inlet, a liquid sample containing an analyte is supplied from the liquid sample supply inlet to the liquid sample retaining section. In step (B), the liquid sample and a specific binding substance capable of specifically binding to the analyte are stirred by the movement of the particles caused by the flow of the liquid sample in the cell resulting from the supply of the liquid sample, to obtain a liquid mixture. The electric charge of at least the surface of the particles and the electric charge of the specific binding substance have the same polarity in the liquid mixture.Type: GrantFiled: March 23, 2005Date of Patent: September 7, 2010Assignee: Panasonic CorporationInventors: Akihito Kamei, Fumihisa Kitawaki, Tatsurou Kawamura, Hiroshi Nakayama, Nobuyuki Shigetou
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Patent number: 7691255Abstract: A sensor capable of measuring a plurality of measuring items quickly and accurately, a measuring device, and a measuring method are provided. The sensor includes a sample-holding unit for holding a sample containing an analyte; a sample-supplying port for supplying the sample to the sample-holding unit; a detecting unit for carrying out an electrochemical measurement, the unit being provided in the sample-holding unit; an optical measuring unit for carrying out an optical measurement, the unit being provided in the sample-holding unit; and a reagent-holding unit for holding a reagent for the optical measurement, the unit being provided in the sample-holding unit; wherein in the flowing direction of the sample supplied from the sample-supplying port in sample-holding unit, the sample-supplying port, the detecting unit, and the reagent-holding unit are positioned in the order recited.Type: GrantFiled: April 22, 2005Date of Patent: April 6, 2010Assignee: Panasonic CorporationInventors: Fumihisa Kitawaki, Akihito Kamei, Tatsurou Kawamura
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Patent number: 7646474Abstract: A measuring device for analyzing an analyte contained in a sample. The device includes a hollow housing, a sample holding part provided inside the housing for holding the sample, a sample supply inlet provided for the housing so as to communicate with the sample holding part, an optical measurement part provided for the sample holding part for making an optical measurement, a reagent holding part provided for the sample holding part for holding a reagent for the optical measurement, and at least one electrode provided on an outer surface of the housing.Type: GrantFiled: October 24, 2006Date of Patent: January 12, 2010Assignee: Panasonic CorporationInventors: Takahiro Nakaminami, Akihito Kamei, Atsushi Fukunaga
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Publication number: 20090219514Abstract: A measuring device for analyzing an analyte contained in a sample. The device includes a hollow housing, a sample holding part provided inside the housing for holding the sample, a sample supply inlet provided for the housing so as to communicate with the sample holding part, an optical measurement part provided for the sample holding part for making an optical measurement, a reagent holding part provided for the sample holding part for holding a reagent for the optical measurement, and at least one electrode provided on an outer surface of the housing.Type: ApplicationFiled: October 24, 2006Publication date: September 3, 2009Inventors: Takahiro Nakaminami, Akihito Kamei, Atsushi Fukunaga
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Publication number: 20090170210Abstract: The measuring device of the invention includes: a first container and a second container for holding a sample; and an optical measurement part for carrying out an optical measurement. The first container has a first sample supply inlet for supplying a sample containing an analyte to the first container and at least one electrode. The second container has a second sample supply inlet for supplying the sample to the second container and a reagent holding part for holding a reagent for the optical measurement.Type: ApplicationFiled: October 24, 2006Publication date: July 2, 2009Inventors: Atsushi Fukunaga, Takahiro Nakaminami, Akihito Kamei
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Patent number: 7553676Abstract: A specific coupling reaction measuring method of this invention for measuring a content of a subject substance in a sample includes the steps of (a) constructing a reaction system including the sample and a magnetic particle on which a specific coupling substance for specifically coupling with the subject substance is immobilized; (b) measuring an optical characteristic of the reaction system; and (c) removing, from the reaction system, an agglutination complex including the subject substance, the specific coupling substance and the magnetic particle by utilizing magnetic force.Type: GrantFiled: August 21, 2006Date of Patent: June 30, 2009Assignee: Panasonic CorporationInventors: Akihito Kamei, Nobuyuki Shigetoh, Tatsurou Kawamura
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Patent number: 7476544Abstract: It is intended to provide a method for determining homogenization and/or reaction completion, capable of making the measurement time necessary and sufficient and enhancing the measurement speed, and a method for measuring solution concentration using the same. According to the method for determining homogenization and/or reaction completion and the method for measuring solution concentration using the same, homogenization and reaction completion are determined based on the optical property of the liquid mixture of a test liquid and a reagent liquid.Type: GrantFiled: March 12, 2003Date of Patent: January 13, 2009Assignee: Panasonic CorporationInventors: Tatsurou Kawamura, Akihito Kamei
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Publication number: 20080108130Abstract: A sensor device enabling quick and uniform dissolution of reagents is provided. The sensor device includes a holding member having a liquid sample holding section for holding a liquid sample containing an analyte. A reagent that reacts or interacts with the analyte in the liquid sample and an effervescent agent that effervesces upon contact with the liquid sample are held at a position of the holding member where they are to come into contact with the liquid sample introduced into the liquid sample holding section.Type: ApplicationFiled: November 21, 2005Publication date: May 8, 2008Inventors: Takahiro Nakaminami, Akihito Kamei
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Publication number: 20080105566Abstract: A sensor capable of measuring a plurality of measuring items quickly and accurately, a measuring device, and a measuring method are provided. The sensor includes a sample-holding unit for holding a sample containing an analyte; a sample-supplying port for supplying the sample to the sample-holding unit; a detecting unit for carrying out an electrochemical measurement, the unit being provided in the sample-holding unit; an optical measuring unit for carrying out an optical measurement, the unit being provided in the sample-holding unit; and a reagent-holding unit for holding a reagent for the optical measurement, the unit being provided in the sample-holding unit; wherein in the flowing direction of the sample supplied from the sample-supplying port in sample-holding unit, the sample-supplying port, the detecting unit, and the reagent-holding unit are positioned in the order recited.Type: ApplicationFiled: April 22, 2005Publication date: May 8, 2008Inventors: Fumihisa Kitawaki, Akihito Kamei, Tatsurou Kawamura
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Publication number: 20070172961Abstract: A method capable of stirring a liquid sample and a reagent promptly and easily includes the following steps (A) and (B). In step (A), using a cell including: a liquid sample retaining section having a plurality of particles; and a liquid sample supply inlet, a liquid sample containing an analyte is supplied from the liquid sample supply inlet to the liquid sample retaining section. In step (B), the liquid sample and a specific binding substance capable of specifically binding to the analyte are stirred by the movement of the particles caused by the flow of the liquid sample in the cell resulting from the supply of the liquid sample, to obtain a liquid mixture. The electric charge of at least the surface of the particles and the electric charge of the specific binding substance have the same polarity in the liquid mixture.Type: ApplicationFiled: March 23, 2005Publication date: July 26, 2007Inventors: Akihito Kamei, Fumihisa Kitawaki, Tatsurou Kawamura, Hiroshi Nakayama, Nobuyuki Shigetou
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Patent number: 7241578Abstract: The immunoassay method of this invention measures the content of a subject substance in a sample. The method includes the steps of: (a) preparing a mixed solution by mixing the sample and an antibody solution including a first monoclonal antibody and a second monoclonal antibody capable of specifically binding to the subject substance; and (b) measuring an optical property of the mixed solution. The first monoclonal antibody is capable of binding to a first epitope of the subject substance, and the second monoclonal antibody is capable of binding to a second epitope of the subject substance different from the first epitope. Each of the first and second epitopes exists singly in the subject substance.Type: GrantFiled: May 20, 2003Date of Patent: July 10, 2007Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Keiko Yugawa, Nobuyuki Shigetoh, Akihito Kamei, Tatsurou Kawamura
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Patent number: 7226777Abstract: According to the present invention, the expansion of measurable concentration range for an antigen in a sample solution can be achieved, without a step of dilution or the like. The concentration of an antigen contained in a sample solution is determined from the maximum value and/or minimum value of turbidity level detected in the observation of the transient phenomenon of turbidity, elapsed time when the maximum and/or minimum value is observed, and turbidity level.Type: GrantFiled: July 9, 2004Date of Patent: June 5, 2007Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Tatsurou Kawamura, Keiko Yugawa, Akihito Kamei
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Patent number: 7202041Abstract: The present invention relates to an immunoreaction measuring method for measuring an antigen or antibody contained as a subject substance in a sample, wherein the sample was mixed with at least one compound selected from the group consisting of dicarboxylic acids having a hydroxyl group, dicarboxylic acids having a double bond, straight-chain dicarboxylic acids expressed by the chemical formula (1): HOOC(CH2)nCOOH (n is an integer), and the salts of these dicarboxylic acids, and an antibody or antigen as a specifically binding substance capable of specifically binding to the subject substance, to obtain an acidic reaction solution, and then an antigen-antibody complex, generated by an antigen-antibody reaction of the subject substance with the specifically binding substance in the reaction solution was detected. This makes it possible to improve a measurement value and to relax a limitation of a measurement range due to a zone phenomenon that occurs in an antigen-excess region.Type: GrantFiled: December 9, 2003Date of Patent: April 10, 2007Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Akihito Kamei, Tatsurou Kawamura, Keiko Yugawa
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Publication number: 20060288253Abstract: In a vital data utilization system, measurement systems include a measurement unit for measuring the vital data of subjects, a clock unit for detecting each measurement time at which vital data is measured and a communication unit for sending the vital data including measurement time to a server, a server includes a communication unit for receiving sets of vital data from measurement systems, a vital data storage unit in which vital data are stored, a value-added information making unit for making the value-added information indicating the changes over time of average values of subjects' vital data in a predetermined geographical area based on the vital data stored in the vital data storage unit and a communication unit for providing the made value-added information to the measurement systems and the PCs of service destinations, and PCs output the provided value-added information.Type: ApplicationFiled: June 10, 2004Publication date: December 21, 2006Inventors: Tatsurou Kawamura, Akihito Kamei
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Patent number: RE40209Abstract: A cell potential measurement apparatus, which uses a planar electrode enabling a multi-point simultaneous measurement of potential change arising from cell activities, is provided which can conduct measurements accurately and efficiently as well as can improve convenience of arranging measurement results.Type: GrantFiled: October 13, 2000Date of Patent: April 1, 2008Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Hirokazu Sugihara, Akihito Kamei, Yasushi Kobayashi, Makoto Taketani, Tadayasu Mitsumata