Patents by Inventor Hiroaki Ishizawa
Hiroaki Ishizawa 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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Publication number: 20240110898Abstract: An analyzer for a rubber composition includes an acquisition unit, a peak identification unit, and an estimation unit. The acquisition unit acquires data acquired by allowing a rubber composition to undergo component separation and mass separation, the data being plotted in a space defined by a time axis, a signal intensity axis, and a mass component axis. The peak identification unit identities peaks in signal intensity for mass chromatograms corresponding to positions on the mass component axis. The estimation unit estimates at least either of a physical property and an odor degree of the rubber composition based on the peaks identified for the mass chromatograms.Type: ApplicationFiled: September 14, 2023Publication date: April 4, 2024Applicants: SUMITOMO RUBBER INDUSTRIES, LTD., NEC CorporationInventors: Mio YOSHITANI, Yuma UNNO, Hiroaki YAMADA, Yoshio ISHIZAWA, Takashi KONDO, Junichiro KUSAKA
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Publication number: 20240016422Abstract: Provided is a biometric information computing system for improvement of evaluation accuracy. The biometric information computing system that outputs information relating to a feature of blood carbon dioxide of a user includes obtaining data, a database, and generating data. The system obtains evaluation data based on a pulse wave of the user. The database stores classification information generated using a plurality of training data, and the training data is a pair of input data based on a preliminarily obtained training pulse wave and reference data including the feature of blood carbon dioxide associated with the input data. The system further generates an evaluation result including the feature of blood carbon dioxide for the evaluation data.Type: ApplicationFiled: September 2, 2021Publication date: January 18, 2024Applicant: SSST CO., LTD.Inventors: Hiroaki ISHIZAWA, Shintaro KURASAWA, Shun CHINO
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Patent number: 10426386Abstract: A non-invasive blood glucose level measurement device (1) is provided with a pulse waveform measurement unit (2) having FBG sensors (4) for measuring an acceleration pulse wave of a test subject; and a data-processing unit (3) for calculating the blood glucose level of the test subject at the point in time of measurement of the acceleration pulse wave, from waveform information of the measured acceleration pulse wave, on the basis of a predetermined correlation. The correlation is a calibration curve constructed by carrying out a PLS regression analysis, using the blood glucose level measured by a non-invasive blood glucose method as the objective variable, and a simultaneously-measured acceleration pulse wave as the explanatory variable. A non-invasive blood glucose level measurement device capable of measuring a blood glucose level at about the same measurement accuracy as an invasive blood glucose measurement device can be achieved thereby.Type: GrantFiled: February 19, 2016Date of Patent: October 1, 2019Assignee: SHINSHU UNIVERSITYInventors: Hiroaki Ishizawa, Shouhei Koyama
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Patent number: 10376160Abstract: A blood pressure measurement method uses a pulse wave measurement unit (20) for measuring the pulse wave of a subject using an FBG sensor (10), and a blood pressure value calculation unit (30) for calculating a blood pressure value from waveform date of the measured pulse wave. The blood pressure calculation unit (30) uses a calibration model representing the correlation between measured waveform date of a previously measured pulse wave, and a measured blood pressure value measured by an automatic blood pressure gauge at each measurement point in time of the measured waveform date to estimate the blood pressure value of the subject from the measured waveform date of the pulse wave. It is possible to realize an easy-to-use blood pressure measurement method capable of estimating the blood pressure value with accuracy required for the automatic blood pressure gauge and continuously measuring the blood pressure.Type: GrantFiled: May 14, 2015Date of Patent: August 13, 2019Assignee: SHINSHU UNIVERSITYInventors: Hiroaki Ishizawa, Shouhei Koyama
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Publication number: 20180008175Abstract: The non-invasive blood glucose level measurement device (1) is provided with a pulse waveform measurement unit (2) having FBG sensors (4) for measuring an acceleration pulse wave of a test subject; and a data-processing unit (3) for calculating the blood glucose level of the test subject at the point in time of measurement of the acceleration pulse wave, from waveform information of the measured acceleration pulse wave, on the basis of a predetermined correlation. The correlation is a calibration curve constructed by carrying out a PLS regression analysis, using the blood glucose level measured by a non-invasive blood glucose method as the objective variable, and a simultaneously-measured acceleration pulse wave as the explanatory variable. A non-invasive blood glucose level measurement device capable of measuring blood glucose level at about the same measurement accuracy as an invasive blood glucose measurement device can be achieved thereby.Type: ApplicationFiled: February 19, 2016Publication date: January 11, 2018Inventors: Hiroaki ISHIZAWA, Shouhei KOYAMA
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Publication number: 20170135591Abstract: A blood pressure measurement device (1) is provided with a pulse wave measurement unit (20) for measuring the pulse wave of a subject using an FBG sensor (10), and a blood pressure value calculation unit (30) for calculating a blood pressure value from waveform date of the measured pulse wave. The blood pressure calculation unit (30) uses a calibration model representing the correlation between measured waveform date of a previously measured pulse wave, and a measured blood pressure value measured by an automatic blood pressure gauge at each measurement point in time of the measured waveform date to estimate the blood pressure value of the subject from the measured waveform date of the pulse wave. It is possible to realize an easy-to-use blood pressure measurement device capable of estimating the blood pressure value with accuracy required for the automatic blood pressure gauge and continuously measuring blood pressure.Type: ApplicationFiled: May 14, 2015Publication date: May 18, 2017Inventors: Hiroaki ISHIZAWA, Shouhei KOYAMA
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Patent number: 9028770Abstract: This invention provides a cell made of polymers for spectra measurement while inhibiting a decrease in a molecular weight of resin caused by discharge treatment and having a stable hydrophilic modified surface. The hydrophilic resin cell is prepared by providing a polymeric resin cell between the two opposing electrodes, applying an electric field to a region between the above opposing electrodes under a nitrogen atmosphere with a pressure close to the atmospheric pressure to generate an electric discharge, and exposing the cell subjected to discharge treatment with a gas including oxygen.Type: GrantFiled: June 4, 2009Date of Patent: May 12, 2015Assignee: Hitachi High-Technologies CorporationInventors: Shinichi Taniguchi, Yukimune Takahashi, Takashi Inoue, Hiroaki Ishizawa
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Patent number: 8972659Abstract: There is provided a memory control device including a device driver that executes writing or reading of data to/from a main storage unit and temporary writing or reading of data to/from a cache unit including a plurality of cache blocks, and a control unit that issues an instruction for writing or reading of data of a file system to/from the main storage unit or the cache unit to the device driver. The control unit may notify priority information about a priority for data storage into a logical block to which the cache block is associated to the device driver.Type: GrantFiled: March 9, 2012Date of Patent: March 3, 2015Assignee: Sony CorporationInventors: Hiroaki Ishizawa, Nobuhiro Kaneko, Shusuke Saeki, Takashi Kida, Tomohiro Katori
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Patent number: 8936754Abstract: There is provided a high-accuracy automatic analysis device achieving both of measurement in a wide concentration range and high sensitivity at a low concentration. The signals of a plurality of wavelengths ?1 to ?12 where the sensitivity of light absorption caused by fine particles is high from a light source 40 are converted to absorbances by a spectroscopic optical system (detector) 41. The absorbances are converted to a secondary parameter from in which a noise component is cancelled by using a previously-defined conversion table 54, so that a concentration of a measured material (predetermined component) is calculated by an operation unit (calculating means) 53 based on the secondary parameter. Thus, analysis being resistant to the noise even at the low concentration can be achieved in a range up to a high concentration.Type: GrantFiled: November 12, 2009Date of Patent: January 20, 2015Assignee: Hitachi High-Technologies CorporationInventors: Isao Yamazaki, Hiroaki Ishizawa, Sakuichiro Adachi
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Patent number: 8790598Abstract: The present invention provides reaction cells capable of maintaining stable analytical performance by preventing bubble adhesion and reducing sample carryover even if the amount of sample liquid for a single test is further reduced in the future. The invention further provides an automatic analyzer that uses the reaction cells and a method for enhancing the hydrophilicity of the inner surfaces of the reaction cells. According to the invention, a reaction cell has a first electrode inserted thereinto and a second electrode disposed on the bottom side of the reaction cell. A voltage is applied between the first electrode and the second electrode to cause electric discharge between the electrodes. This allows for enhancing only the hydrophilicity of the bottom inner surface and the four bottom corners of the reaction cell to which large bubbles adhere easily.Type: GrantFiled: April 13, 2009Date of Patent: July 29, 2014Assignee: Hitachi High-Technologies CorporationInventors: Masashi Endo, Hiroaki Ishizawa, Hiroyuki Mishima
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Publication number: 20140149984Abstract: There is provided an information processing apparatus including circuitry configured to generate an instruction for running an application, and reserve a computer resource for running each of virtual machines corresponding to applications which are running instruction targets, in response to the generation of the running instruction.Type: ApplicationFiled: October 18, 2013Publication date: May 29, 2014Applicant: SONY CORPORATIONInventors: Ryo TAKAHASHI, Hiroki NAGAHAMA, Yasuhiro MATSUZAKI, Hiroaki ISHIZAWA
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Publication number: 20130332928Abstract: There is provided an information processing system including circuitry that acquires application definition information that defines a module used by an application, rewrites the application definition information depending on a circumstance of a device in which a process of the application is executed, and provides the rewritten application definition information to the device in which the process is executed.Type: ApplicationFiled: May 22, 2013Publication date: December 12, 2013Applicant: Sony CorporationInventors: Hiroaki Ishizawa, Seiya Ichimori
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Publication number: 20130332686Abstract: A computer-implemented information processing method, apparatus and computer-readable storage medium comprising computer-executable instructions that, when executed by at least one processor, perform an information processing method. Configuration management information is rewritten base based on a status of a first apparatus designated to execute a process. The configuration management information defines one or more relationships between one or more virtual devices and one or more physical devices. The rewritten configuration management information is provided to the first apparatus.Type: ApplicationFiled: May 22, 2013Publication date: December 12, 2013Applicant: Sony CorporationInventors: Hiroaki Ishizawa, Seiya Ichimori
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Publication number: 20130259745Abstract: The occurrence of splash of a sample or a reagent from a nozzle tip is prevented during shifting of a dispensing mechanism. An automatic analyzer includes a nozzle for sucking liquid to be dispensed; a pump for allowing suction of the liquid into the nozzle and generating pressure variations; a pipe line connecting the nozzle with the pump; and a shifting mechanism for shifting the nozzle in horizontal and vertical directions. In the automatic analyzer, the pipe line is at least partially composed of a flexible tube. The flexible tube has an upward or downward convex bending portion in the middle thereof. The convex bending portion changes in position and shifts along with the shifting mechanism at a nozzle side.Type: ApplicationFiled: October 25, 2011Publication date: October 3, 2013Inventors: Isao Yamazaki, Takamichi Mori, Hiroaki Ishizawa, Kazumi Kusano, Hidenobu Komatsu
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Publication number: 20130171025Abstract: In an autoanalyzer for analyzing a specimen such as urine and blood, protecting a measurement value of analysis from influence of a dispensing nozzle repeatedly used. For this purpose, a phosphonic acid derivative or a phosphoric acid derivative is chemically adsorbed on the surface of the dispensing nozzle. In this manner, a molecular layer for suppressing adsorption of biopolymers or adhesion of a specimen per se is formed on the nozzle surface to prevent accuracy of analysis from being influenced.Type: ApplicationFiled: July 11, 2011Publication date: July 4, 2013Applicant: Hitachi High-Technologies CorporationInventors: Akihiro Nojima, Shinichi Taniguchi, Hiroaki Ishizawa
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Patent number: 8444936Abstract: There is provided a highly reliable autoanalyzer less liable to sample and reagent carry-over and capable of preventing contamination and precisely pipetting samples and reagents. Using a sample pipetting nozzle 27 having water-repellent surfaces, a sample is pipetted from a sample cell 25 to a reaction cell 4 having a hydrophilic bottom face.Type: GrantFiled: January 5, 2010Date of Patent: May 21, 2013Assignee: Hitachi High-Technologies CorporationInventors: Shinichi Taniguchi, Akihiro Nojima, Takashi Inoue, Hiroaki Ishizawa
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Publication number: 20130064737Abstract: Disclosed is an automatic analyzer designed so that when it discharges a sample into an empty reaction vessel, the analyzer dispenses the sample without bringing a distal end of a sample probe into contact with a bottom surface of the reaction vessel and can thereby dispense the sample with stable dispensing accuracy in addition to extending lives of the sample probe and the reaction vessel.Type: ApplicationFiled: December 10, 2010Publication date: March 14, 2013Applicant: HITACHI HIGH-TECHNOLOGIES CORPORATIONInventors: Takamichi Mori, Hiroaki Ishizawa, Kazumi Kusano, Isao Yamazaki
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Patent number: 8288164Abstract: The present invention provides a highly reliable reaction cuvette in which air bubbles are adhered little and mutual contamination can be prevented among samples and reagents in adjoining reaction cuvettes, a method of surface treatment for a reaction cuvette, and an automatic analyzer with the reaction cuvette mounted therein. The reaction cuvette according to the present invention, in which a sample and a reagent are mixed with each other and its concentration is measured, has an area subjected to hydrophilic treatment by electric discharging on inner and outer surfaces of the reaction cuvette. Further the reaction cuvette has a container-like form with its upper portion opened to provide an opening and its lower portion closed to provide a bottom. The hydrophilic area is present from a bottom of the reaction cuvette up to a midway to the opening.Type: GrantFiled: May 14, 2008Date of Patent: October 16, 2012Assignee: Hitachi High-Technologies CorporationInventors: Hiroyuki Mishima, Hiroaki Ishizawa, Masashi Endo
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Publication number: 20120239884Abstract: There is provided a memory control device including a device driver that executes writing or reading of data to/from a main storage unit and temporary writing or reading of data to/from a cache unit including a plurality of cache blocks, and a control unit that issues an instruction for writing or reading of data of a file system to/from the main storage unit or the cache unit to the device driver. The control unit may notify priority information about a priority for data storage into a logical block to which the cache block is associated to the device driver.Type: ApplicationFiled: March 9, 2012Publication date: September 20, 2012Inventors: Hiroaki Ishizawa, Nobuhiro Kaneko, Shusuke Saeki, Takashi Kida, Tomohiro Katori
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Publication number: 20120020836Abstract: In an autoanalyzer for analyzing samples, such as urine and blood, analytical and measured values are prevented from being affected by carry-over caused by the repeated use of a pipetting nozzle. A molecular layer for inhibiting the adsorption of biological polymers is formed by coating surfaces of the pipetting nozzle with a polyethylene glycol derivative chemisorbed thereto, thereby reducing carry-over caused by the pipetting nozzle.Type: ApplicationFiled: January 5, 2010Publication date: January 26, 2012Inventors: Akihiro Nojima, Shinichi Taniguchi, Takashi Inoue, Hiroaki Ishizawa