Patents by Inventor Hiroshi Mitsumaki
Hiroshi Mitsumaki 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: 20120177536Abstract: Ion concentration measurement requires a calibration before the start of the measurement, and thus the start of the measurement is delayed for the calibration period. Hence, the calibration is made unnecessary by reading an electrode slope value specific to an ion selective electrode for measuring the concentration of particular ions dissolved in a test solution, from an information presenting unit of an ion selective electrode cartridge including the ion selective electrode.Type: ApplicationFiled: September 17, 2010Publication date: July 12, 2012Inventors: Chiki Sakai, Osamu Nozawa, Hiroshi Mitsumaki
-
Patent number: 8066959Abstract: An automatic analyzer capable of performing analysis in terms of a number of analysis items with high reliability through a simple operation. The automatic analyzer comprises a probe adapted to be moved on a circular arc path and capable of sucking or discharging a sample or reagent, a plurality of sample containers disposed at different positions on the path of the probe and containing different analyte samples, and a rotor capable of carrying a plurality of reagent cartridges. Each of the reagent cartridges comprises a photometric cuvette that is empty when not in use, and a reagent cuvette in which a reagent used for a particular analysis item is hermetically sealed. A two-dimensional code with information regarding the analyte type and analysis conditions, for example, is affixed to the reagent cartridge. The two-dimensional code information is read by a reading unit.Type: GrantFiled: May 19, 2005Date of Patent: November 29, 2011Assignee: Hitachi Chemical Company, Ltd.Inventors: Katsumi Ouchi, Hiroshi Mitsumaki
-
Patent number: 7700043Abstract: A plurality of analyzer units for serum, a plurality of analyzer units for blood plasma and a plurality of analyzer units for urine are arranged along a main transfer line for transferring a sample rack from a rack providing portion to a rack storage portion. A reagent bottle for inspecting liver function is contained in each reagent delivery mechanism of two analyzer units among the plurality of analyzer units for serum. When the reagent for inspecting liver function in one of the two analyzer units is to be short, analysis for the liver function analysis item to samples can be continued by transferring a sample rack from the rack providing portion to the other analyzer unit.Type: GrantFiled: March 26, 2008Date of Patent: April 20, 2010Assignee: Hitachi, Ltd.Inventors: Tomonori Mimura, Hiroshi Mitsumaki, Tadashi Ohishi, Taku Sakazume
-
Patent number: 7674430Abstract: The performance of an analyzer is checked on by use of a performance check cartridge which has the same external shape as a reagent cartridge for analyzing samples has; the performance check cartridge holds reagents for checking on the performance of the analyzer, and concurrently holds process conditions and determination conditions for checking on the performance of the analyzer in the form of two-dimensional dot codes; in accordance with the process conditions recorded in the performance check cartridge, the automated analyzer determines the absorbance by use of the reagents filled in the performance check cartridge, and compares a result of the determination with the determination conditions recorded in the performance check cartridge, thereby checking on the performance of the analyzer.Type: GrantFiled: June 6, 2006Date of Patent: March 9, 2010Assignee: Hitachi, Ltd.Inventors: Katsumi Ouchi, Hiroshi Mitsumaki
-
Publication number: 20080181817Abstract: A plurality of analyzer units for serum, a plurality of analyzer units for blood plasma and a plurality of analyzer units for urine are arranged along a main transfer line for transferring a sample rack from a rack providing portion to a rack storage portion. A reagent bottle for inspecting liver function is contained in each reagent delivery mechanism of two analyzer units among the plurality of analyzer units for serum. When the reagent for inspecting liver function in one of the two analyzer units is to be short, analysis for the liver function analysis item to samples can be continued by transferring a sample rack from the rack providing portion to the other analyzer unit.Type: ApplicationFiled: March 26, 2008Publication date: July 31, 2008Inventors: Tomonori MIMURA, Hiroshi Mitsumaki, Tadashi Ohishi, Taku Sakazume
-
Patent number: 7361305Abstract: A plurality of analyzer units for serum, a plurality of analyzer units for blood plasma and a plurality of analyzer units for urine are arranged along a main transfer line for transferring a sample rack from a rack providing portion to a rack storage portion. A reagent bottle for inspecting liver function is contained in each reagent delivery mechanism of two analyzer units among the plurality of analyzer units for serum. When the reagent for inspecting liver function in one of the two analyzer units is to be short, analysis for the liver function analysis item to samples can be continued by transferring a sample rack from the rack providing portion to the other analyzer unit.Type: GrantFiled: January 4, 2006Date of Patent: April 22, 2008Assignee: Hitachi, Ltd.Inventors: Tomonori Mimura, Hiroshi Mitsumaki, Tadashi Ohishi, Taku Sakazume
-
Publication number: 20070224083Abstract: The performance of an analyzer is checked on by use of a performance check cartridge which has the same external shape as a reagent cartridge for analyzing samples has; the performance check cartridge holds reagents for checking on the performance of the analyzer, and concurrently holds process conditions and determination conditions for checking on the performance of the analyzer in the form of two-dimensional dot codes; in accordance with the process conditions recorded in the performance check cartridge, the automated analyzer determines the absorbance by use of the reagents filled in the performance check cartridge, and compares a result of the determination with the determination conditions recorded in the performance check cartridge, thereby checking on the performance of the analyzer.Type: ApplicationFiled: June 6, 2006Publication date: September 27, 2007Inventors: Katsumi Ouchi, Hiroshi Mitsumaki
-
Patent number: 7254428Abstract: Blood sugar levels are measured non-invasively based on temperature measurement. Non-invasively measured blood sugar level values obtained by a temperature measurement scheme are corrected by blood oxygen saturation and blood flow volume, thereby stabilizing the measurement data. A guide is provided for guiding an analyte to a measurement portion.Type: GrantFiled: March 31, 2004Date of Patent: August 7, 2007Assignee: Hitachi, Ltd.Inventors: Ok-Kyung Cho, Yoon-Ok Kim, Nobuhiko Sato, Hiroshi Mitsumaki
-
Patent number: 7251514Abstract: Blood sugar levels are measured non-invasively based on temperature measurement. Non-invasively measured blood sugar level values obtained by a temperature measurement scheme are corrected by blood oxygen saturation and blood flow volume, thereby stabilizing the measurement data. If the measured blood sugar level is larger than a warning value, a warning is issued.Type: GrantFiled: March 31, 2004Date of Patent: July 31, 2007Assignee: Hitachi, Ltd.Inventors: Ok-Kyung Cho, Yoon-Ok Kim, Katsumi Ouchi, Hiroshi Mitsumaki
-
Patent number: 7251515Abstract: Blood sugar levels are measured non-invasively based on temperature measurement. Non-invasively measured blood sugar level values obtained by a temperature measurement scheme are corrected by blood oxygen saturation and blood flow volume, thereby stabilizing the measurement data. The shape or color of control buttons for controlling measurement are associated with the function of each button such that the buttons can be identified either visually or by touch.Type: GrantFiled: March 31, 2004Date of Patent: July 31, 2007Assignee: Hitachi, Ltd.Inventors: Ok-Kyung Cho, Yoon-Ok Kim, Koji Nagata, Hiroshi Mitsumaki
-
Patent number: 7251517Abstract: Blood sugar levels are measured non-invasively based on temperature measurement. Non-invasively measured blood sugar level values obtained by a temperature measurement scheme are corrected by blood oxygen saturation and blood flow volume, thereby stabilizing the measurement data.Type: GrantFiled: June 30, 2004Date of Patent: July 31, 2007Assignee: Hitachi, Ltd.Inventors: Ok-Kyung Cho, Yoon-Ok Kim, Kurazo Maruoka, Hiroshi Mitsumaki
-
Publication number: 20070106139Abstract: Measurement of blood flow rate in a convenient manner has been enabled by using a simple device constitution and a simple signal processing technique. A measurement mechanism having both the function of measuring temperature of the measurement site and the function of applying a thermal load to the measurement site is used, and a process of extracting temperature change associated with the recovery of the surface temperature by the blood flow is conducted from the measurement results obtained by the measurement mechanism.Type: ApplicationFiled: December 27, 2005Publication date: May 10, 2007Inventors: Koji Nagata, Hiroshi Mitsumaki, Tsuyoshi Uchida, Rinichi Asano, Masashi Kiguchi
-
Patent number: 7215983Abstract: Blood sugar levels are measured non-invasively based on temperature measurement. Non-invasively measured blood sugar level values obtained by a temperature measurement scheme are corrected by blood oxygen saturation and blood flow volume, thereby stabilizing the measurement data.Type: GrantFiled: June 30, 2004Date of Patent: May 8, 2007Assignee: Hitachi, Ltd.Inventors: Ok-Kyung Cho, Yoon-Ok Kim, Hideharu Hattori, Hiroshi Mitsumaki
-
Publication number: 20070088228Abstract: A metabolic rate measuring apparatus, which calculates metabolic rate based on the physiological parameters measurements. The apparatus measures the physiological parameters, and uses equations of metabolic rate calculates in consideration with thermal equilibrium of human body to facilitate the measurement of metabolic rate.Type: ApplicationFiled: December 28, 2005Publication date: April 19, 2007Inventors: Tsuyoshi Uchida, Hiroshi Mitsumaki, Masashi Kiguchi
-
Patent number: 7204961Abstract: Provided is a liquid feed apparatus for feeding liquid by operating a diaphragm at a high frequency, in which an inlet valve and an outlet valve are integrally incorporated with a liquid feed chamber, the positions of the valve are shifted into peripheral parts of the liquid feed chamber so as to allow fluid to smoothly flow from the inlet to the outlet in order to prevent air bubbles from causing pressure fluctuation during liquid feed, from remaining in the liquid feed chamber. Further, the valve has a center beam structure in which a protrusion having a height greater than several micron meters, is formed in the seat part of the valve so as to deform a center beam for pressurizing the valve in order to enhance the shut-off ability of the valve, and the center beam has a small surface area in the direction of displacement of the valve.Type: GrantFiled: March 1, 1999Date of Patent: April 17, 2007Assignee: Hitachi, Ltd.Inventors: Akira Koide, Ryo Miyake, Takao Terayama, Hiroshi Mitsumaki, Tomonari Morioka
-
Publication number: 20060177344Abstract: An automatic analyzer capable of performing analysis in terms of a number of analysis items with high reliability through a simple operation. The automatic analyzer comprises a probe adapted to be moved on a circular arc path and capable of sucking or discharging a sample or reagent, a plurality of sample containers disposed at different positions on the path of the probe and containing different analyte samples, and a rotor capable of carrying a plurality of reagent cartridges. Each of the reagent cartridges comprises a photometric cuvette that is empty when not in use, and a reagent cuvette in which a reagent used for a particular analysis item is hermetically sealed. A two-dimensional code with information regarding the analyte type and analysis conditions, for example, is affixed to the reagent cartridge. The two-dimensional code information is read by a reading unit.Type: ApplicationFiled: May 19, 2005Publication date: August 10, 2006Inventors: Katsumi Ouchi, Hiroshi Mitsumaki
-
Publication number: 20060110288Abstract: A plurality of analyzer units for serum, a plurality of analyzer units for blood plasma and a plurality of analyzer units for urine are arranged along a main transfer line for transferring a sample rack from a rack providing portion to a rack storage portion. A reagent bottle for inspecting liver function is contained in each reagent delivery mechanism of two analyzer units among the plurality of analyzer units for serum. When the reagent for inspecting liver function in one of the two analyzer units is to be short, analysis for the liver function analysis item to samples can be continued by transferring a sample rack from the rack providing portion to the other analyzer unit.Type: ApplicationFiled: January 4, 2006Publication date: May 25, 2006Inventors: Tomonori Mimura, Hiroshi Mitsumaki, Tadashi Ohishi, Taku Sakazume
-
Publication number: 20060094941Abstract: An apparatus for non-invasively measuring blood sugar levels based on temperature measurements. A blood sugar level non-invasively measured by a temperature measuring method is corrected by blood oxygen saturation and blood flow volume. Optical sensors detect scattered light, reflected light, and light exiting from a body surface after penetrating the skin, so that measurement data can be stabilized by taking into consideration the influence of the thickness of the skin on blood oxygen saturation.Type: ApplicationFiled: October 29, 2004Publication date: May 4, 2006Inventors: Ok-Kyung Cho, Yoon-Ok Kim, Nobuhiko Sato, Hiroshi Mitsumaki
-
Patent number: D544610Type: GrantFiled: March 18, 2005Date of Patent: June 12, 2007Assignee: Hitachi, Ltd.Inventors: Katsumi Ouchi, Hiroshi Mitsumaki
-
Patent number: D554551Type: GrantFiled: January 17, 2006Date of Patent: November 6, 2007Assignee: Hitachi, Ltd.Inventors: Katsumi Ouchi, Hiroshi Mitsumaki, Hironobu Nagano