Patents by Inventor Takaaki Fujita
Takaaki Fujita 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: 20240074462Abstract: An ethyl glucoside-containing composition containing ethyl glucoside; and at least one of an acid or its salt selected from the group consisting of phosphoric acid, ascorbic acid, lactic acid, and their salts, wherein the composition has an ethyl glucoside content of 0.4 wt % or more.Type: ApplicationFiled: December 21, 2021Publication date: March 7, 2024Applicant: SUNTORY HOLDINGS LIMITEDInventors: Yohei Fujita, Takaaki Yoshii
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Patent number: 11821879Abstract: An autosampler for a chromatograph includes a first injection port through which a sample is injected into a first analysis flow path of the chromatograph, a second injection port through which a sample is injected into a second analysis flow path of the chromatograph, a needle that is movable to both of the first injection port and the second injection port, and injects a sample into the first injection port and the second injection port, a first sample loop that stores a sample to be injected into the first analysis flow path, a second sample loop that stores a sample to be injected into the second analysis flow path, and a metering pump that loads a sample in the first sample loop and the second sample loop.Type: GrantFiled: March 13, 2019Date of Patent: November 21, 2023Assignee: SHIMADZU CORPORATIONInventor: Takaaki Fujita
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Patent number: 11519886Abstract: An autosampler is switched selectively between an injecting mode where a sampling flow path is incorporated into an analysis flow path of a liquid chromatograph and a loading mode where the sampling flow path is not incorporated into the analysis flow path and injects a sample into the analysis flow path at a position farther upstream than a separation column by being switched to the injecting mode with the sample held in the sampling flow path, and includes a clog determiner configured to acquire a sending liquid pressure of a liquid sending pump that sends a mobile phase in the analysis flow path, obtain a variation value of the liquid sending pressure when the injecting mode and the loading mode are switched and determine presence or absence of a clog in a system incorporated into the analysis flow path in the injecting mode based on the obtained variation value.Type: GrantFiled: January 16, 2019Date of Patent: December 6, 2022Assignee: Shimadzu CorporationInventors: Yusuke Yokoi, Takaaki Fujita, Takashi Inoue, Kenichi Yasunaga
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Publication number: 20220170955Abstract: A plate changer that supplies a plate storing a sample to an autosampler included in an analyzer includes a storage that stores the plate, and a plate transporter that transports the plate by holding the plate, the plate transporter receiving the plate from a first plate changer provided at one side of the plate changer and also transferring the plate received from the first plate changer to a second plate changer or the autosampler provided at another side of the plate changer or transferring the plate stored in the storage to the second plate changer or the autosampler.Type: ApplicationFiled: March 13, 2019Publication date: June 2, 2022Inventor: Takaaki FUJITA
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Publication number: 20220128521Abstract: An autosampler for a chromatograph includes a first injection port through which a sample is injected into a first analysis flow path of the chromatograph, a second injection port through which a sample is injected into a second analysis flow path of the chromatograph, a needle that is movable to both of the first injection port and the second injection port, and injects a sample into the first injection port and the second injection port, a first sample loop that stores a sample to be injected into the first analysis flow path, a second sample loop that stores a sample to be injected into the second analysis flow path, and a metering pump that loads a sample in the first sample loop and the second sample loop.Type: ApplicationFiled: March 13, 2019Publication date: April 28, 2022Inventor: Takaaki FUJITA
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Publication number: 20210148869Abstract: An autosampler is switched selectively between an injecting mode where a sampling flow path is incorporated into an analysis flow path of a liquid chromatograph and a loading mode where the sampling flow path is not incorporated into the analysis flow path and injects a sample into the analysis flow path at a position farther upstream than a separation column by being switched to the injecting mode with the sample held in the sampling flow path, and includes a clog determiner configured to acquire a sending liquid pressure of a liquid sending pump that sends a mobile phase in the analysis flow path, obtain a variation value of the liquid sending pressure when the injecting mode and the loading mode are switched and determine presence or absence of a clog in a system incorporated into the analysis flow path in the injecting mode based on the obtained variation value.Type: ApplicationFiled: January 16, 2019Publication date: May 20, 2021Inventors: Yusuke YOKOI, Takaaki FUJITA, Takashi INOUE, Kenichi YASUNAGA
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Patent number: 10955390Abstract: An autosampler sucks cleaning liquid from a tip side of a sampling needle and holds the cleaning liquid in the sampling channel before sucking analysis liquid from the tip of the sampling needle, and, after dispensing of the analysis liquid is finished, discharges the cleaning liquid from the tip of the sampling needle, so as to clean the inside of the sampling needle and the sampling channel.Type: GrantFiled: September 1, 2017Date of Patent: March 23, 2021Assignee: Shimadzu CorporationInventors: Hiroyuki Minato, Takaaki Fujita
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Publication number: 20200200717Abstract: An autosampler sucks cleaning liquid from a tip side of a sampling needle and holds the cleaning liquid in the sampling channel before sucking analysis liquid from the tip of the sampling needle, and, after dispensing of the analysis liquid is finished, discharges the cleaning liquid from the tip of the sampling needle, so as to clean the inside of the sampling needle and the sampling channel.Type: ApplicationFiled: September 1, 2017Publication date: June 25, 2020Inventors: Hiroyuki MINATO, Takaaki FUJITA
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Patent number: 9983177Abstract: An autosampler according to an embodiment includes a sampling channel including a movable needle at a tip, and a switching valve, including a plurality of ports, for switching the connection state between the ports by switching the position of a rotor by rotating the rotor. The rotor of the switching valve includes an injecting position in which a delivery port and a sampling port are communicated and an injection port and an analysis port are communicated, a purging position in which the delivery port and the sampling port are communicated and the injection port and a drain port are communicated, and a loading position in which the delivery port and the analysis port are communicated.Type: GrantFiled: March 7, 2016Date of Patent: May 29, 2018Assignee: SHIMADZU CORPORATIONInventor: Takaaki Fujita
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Publication number: 20160274069Abstract: An autosampler according to an embodiment includes a sampling channel including a movable needle at a tip, and a switching valve, including a plurality of ports, for switching the connection state between the ports by switching the position of a rotor by rotating the rotor. The rotor of the switching valve includes an injecting position in which a delivery port and a sampling port are communicated and an injection port and an analysis port are communicated, a purging position in which the delivery port and the sampling port are communicated and the injection port and a drain port are communicated, and a loading position in which the delivery port and the analysis port are communicated.Type: ApplicationFiled: March 7, 2016Publication date: September 22, 2016Applicant: SHIMADZU CORPORATIONInventor: Takaaki Fujita
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Patent number: 9236664Abstract: An antenna which reduces the number of end faces and perpendicular corners, and suffers from little deterioration of performance even if used for high frequency transmission/reception, in particular a microstrip patch antenna which is comprised of a dielectric substrate on the bottom surface of which a conductive ground plate is formed and on the top surface of which a patch antenna part formed by a conductor and a feeder circuit connected to the same are provided, wherein the feeder circuit is connected to the antenna part while offset by exactly a predetermined distance to either end side from a center of one side of said antennas part to which said feeder circuit is to be connected so that a transmission loss of the antenna becomes a predetermined value or less. The predetermined distance can be made 20 to 70% of the longitudinal side of the patch antenna part.Type: GrantFiled: October 18, 2011Date of Patent: January 12, 2016Assignees: FUJITSU TEN LIMITED, NIPPON PILLAR PACKING CO., LTD.Inventors: Eisuke Hayakawa, Takeshi Okunaga, Takaaki Fujita
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Publication number: 20140318275Abstract: The present invention is an auto-sampler having a casing whose inner space can be hermetically closed, including an opening provided in a wall of the casing and a gas discharger for discharging gas inside the casing through the opening to the outside of the casing.Type: ApplicationFiled: August 8, 2012Publication date: October 30, 2014Applicant: SHIMADZU CORPORATIONInventors: Takaaki Fujita, Takashi Inoue
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Publication number: 20130027259Abstract: An object is to suppress radiation of a cross polarized wave by a microstrip antenna to improve cross polarization discrimination of the traveling wave excitation antenna. A microstrip antenna wherein: a feed line 21 through which a traveling wave propagates, and a radiating element 22 that is excited by the traveling wave are formed on a dielectric substrate 1, and wherein: the radiating element 22 has a radiating part 22A for radiating a co-polarization wave, and an open stub 22B that has a stub length 22A substantially equal to ?g/4 and that extends from the radiating part toward a cross polarization direction. Therefore, without changing an element width Lb of the radiating element 22, radiation of a cross polarized wave by the radiating element 22 can be suppressed to improve cross polarization discrimination.Type: ApplicationFiled: July 27, 2012Publication date: January 31, 2013Applicants: FUJITSU TEN LIMITED, NIPPON PILLAR PACKING CO., LTD.Inventors: Takaaki Fujita, Takeshi Okunaga, Eisuke Hayakawa
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Patent number: 8266973Abstract: After a sampling needle is moved to a position above a sample container, the sampling needle is moved down so that the tip of the sampling needle penetrates a septum, and is then preferably moved down to a position at which the tip of the sampling needle is not brought into contact with a sample contained in the sample container, and then, the sampling needle is once elevated until the sampling needle is pulled out of the septum, and is then again moved down to penetrate the septum until the tip of the sampling needle is inserted into the sample to suck the sample through a suction port of the sampling needle, and then, the sampling needle is moved to a sample injection port of an analyzer to inject the sample into the analyzer.Type: GrantFiled: October 20, 2008Date of Patent: September 18, 2012Assignee: Shimadzu CorporationInventors: Yoshiaki Maeda, Takaaki Fujita
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Publication number: 20120112976Abstract: An antenna which reduces the number of end faces and perpendicular corners, and suffers from little deterioration of performance even if used for high frequency transmission/reception, in particular a microstrip patch antenna which is comprised of a dielectric substrate on the bottom surface of which a conductive ground plate is formed and on the top surface of which a patch antenna part formed by a conductor and a feeder circuit connected to the same are provided, wherein the feeder circuit is connected to the antenna part while offset by exactly a predetermined distance to either end side from a center of one side of said antennas part to which said feeder circuit is to be connected so that a transmission loss of the antenna becomes a predetermined value or less. The predetermined distance can be made 20 to 70% of the longitudinal side of the patch antenna part.Type: ApplicationFiled: October 18, 2011Publication date: May 10, 2012Applicants: NIPPON PILLAR PACKING CO., LTD, FUJITSU TEN LIMITEDInventors: Eisuke Hayakawa, Takeshi Okunaga, Takaaki Fujita
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Publication number: 20090100942Abstract: After a sampling needle is moved to a position above a sample container, the sampling needle is moved down so that the tip of the sampling needle penetrates a septum, and is then preferably moved down to a position at which the tip of the sampling needle is not brought into contact with a sample contained in the sample container, and then, the sampling needle is once elevated until the sampling needle is pulled out of the septum, and is then again moved down to penetrate the septum until the tip of the sampling needle is inserted into the sample to suck the sample through a suction port of the sampling needle, and then, the sampling needle is moved to a sample injection port of an analyzer to inject the sample into the analyzer.Type: ApplicationFiled: October 20, 2008Publication date: April 23, 2009Inventors: Yoshiaki Maeda, Takaaki Fujita