Patents by Inventor Keita KOJIMA
Keita KOJIMA 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: 20230296882Abstract: A motorized correction collar system includes: an attachment portion; a control unit that controls transmission of force to a correction collar ring of a first objective lens attached to the attachment portion; and a storage unit that stores calibration information at least for each type of objective lens with a correction collar. The control unit acquires calibration information corresponding to the first objective lens from among the calibration information stored in the storage unit, and calibrates the correction collar of the first objective lens based on the calibration information.Type: ApplicationFiled: December 20, 2022Publication date: September 21, 2023Applicant: EVIDENT CORPORATIONInventors: Noriyuki SUZUKI, Takuma KIMURA, Takehiko HAYASHI, Keita KOJIMA
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Patent number: 11611722Abstract: A microscope system is provided with a microscope that acquires images at least at a first magnification and a second magnification higher than the first magnification, and a processor. The processor is configured to specify a type of a container in which a specimen is placed, and when starting observation of the specimen placed in the container at the second magnification, the processor is configured to specify a map region corresponding to a map image constructed by stitching together a plurality of second images acquired by the microscope at a higher magnification than the first magnification by performing object detection according to the type of the container on a first image that includes the container acquired by the microscope at the first magnification, and cause a display unit to display the first image and a range of the map region on the first image.Type: GrantFiled: May 19, 2021Date of Patent: March 21, 2023Assignee: Evident CorporationInventors: Keita Kojima, Motohiro Shibata, Takehiko Hayashi, Keigo Mori
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Patent number: 11555995Abstract: A microscope system is provided with a microscope that acquires images at least at a first magnification and a second magnification higher than the first magnification, and a processor. The processor is configured to specify a type of a container in which a specimen is placed, and when starting observation of the specimen placed in the container at the second magnification, the processor is configured to specify an observation start position by performing object detection according to the type of container on a first image that includes the container acquired by the microscope at the first magnification, and control a relative position of the microscope with respect to the specimen such that the observation start position is contained in a field of view at the second magnification of the microscope.Type: GrantFiled: May 19, 2021Date of Patent: January 17, 2023Assignee: Evident CorporationInventors: Motohiro Shibata, Takehiko Hayashi, Keita Kojima, Keigo Mori
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Patent number: 11384121Abstract: An object of the present invention is to provide an echinomycin derivative that has anti-cancer activity equal to or greater than that of echinomycin, and a production method therefor based on a chemical procedure. Provided are an echinomycin derivative represented by formula (I), and a production method therefor based on a chemical procedure.Type: GrantFiled: January 31, 2019Date of Patent: July 12, 2022Assignee: National University Corporation Hokkaido UniversityInventors: Satoshi Ichikawa, Keita Kojima, Mikihiro Fujiya, Hiroaki Konishi
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Publication number: 20210364774Abstract: A microscope system is provided with a microscope that acquires images at least at a first magnification and a second magnification higher than the first magnification, and a processor. The processor is configured to specify a type of a container in which a specimen is placed, and when starting observation of the specimen placed in the container at the second magnification, the processor is configured to specify an observation start position by performing object detection according to the type of container on a first image that includes the container acquired by the microscope at the first magnification, and control a relative position of the microscope with respect to the specimen such that the observation start position is contained in a field of view at the second magnification of the microscope.Type: ApplicationFiled: May 19, 2021Publication date: November 25, 2021Applicant: OLYMPUS CORPORATIONInventors: Motohiro SHIBATA, Takehiko HAYASHI, Keita KOJIMA, Keigo MORI
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Publication number: 20210368138Abstract: A microscope system is provided with a microscope that acquires images at least at a first magnification and a second magnification higher than the first magnification, and a processor. The processor is configured to specify a type of a container in which a specimen is placed, and when starting observation of the specimen placed in the container at the second magnification, the processor is configured to specify a map region corresponding to a map image constructed by stitching together a plurality of second images acquired by the microscope at a higher magnification than the first magnification by performing object detection according to the type of the container on a first image that includes the container acquired by the microscope at the first magnification, and cause a display unit to display the first image and a range of the map region on the first image.Type: ApplicationFiled: May 19, 2021Publication date: November 25, 2021Applicant: OLYMPUS CORPORATIONInventors: Keita KOJIMA, Motohiro SHIBATA, Takehiko HAYASHI, Keigo MORI
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Publication number: 20210017232Abstract: An object of the present invention is to provide an echinomycin derivative that has anti-cancer activity equal to or greater than that of echinomycin, and a production method therefor based on a chemical procedure. Provided are an echinomycin derivative represented by formula (I), and a production method therefor based on a chemical procedure.Type: ApplicationFiled: January 31, 2019Publication date: January 21, 2021Applicant: National University Corporation Hokkaido UniversityInventors: Satoshi ICHIKAWA, Keita KOJIMA, Mikihiro FUJIYA, Hiroaki KONISHI
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Patent number: 9476330Abstract: An electromagnetic valve driver, in normal operation, supplies peak current from a capacitor to a coil of an injector by turning ON a transistor on a downstream side of the coil and a discharge transistor that discharges electricity from the capacitor to the coil. Thereafter, the driver supplies constant current to the coil by an ON-OFF control of a transistor disposed between a battery and an upstream side of the coil until an end of the electricity supply period. When an open failure of the discharge transistor is detected, the driver controls the current to prevent a voltage rise of the capacitor to reduce flyback energy collected from a downstream side of the coil by the capacitor based on a transistor OFF timing delay scheme, in which an OFF timing of a transistor is delayed by a preset delay time from a normal OFF timing thereof.Type: GrantFiled: November 24, 2014Date of Patent: October 25, 2016Assignee: DENSO CORPORATIONInventor: Keita Kojima
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Publication number: 20150152820Abstract: An electromagnetic valve driver, in normal operation, supplies peak current from a capacitor to a coil of an injector by turning ON a transistor on a downstream side of the coil and a discharge transistor that discharges electricity from the capacitor to the coil. Thereafter, the driver supplies constant current to the coil by an ON-OFF control of a transistor disposed between a battery and an upstream side of the coil until an end of the electricity supply period. When an open failure of the discharge transistor is detected, the driver controls the current to prevent a voltage rise of the capacitor to reduce flyback energy collected from a downstream side of the coil by the capacitor based on a transistor OFF timing delay scheme, in which an OFF timing of a transistor is delayed by a preset delay time from a normal OFF timing thereof.Type: ApplicationFiled: November 24, 2014Publication date: June 4, 2015Inventor: Keita KOJIMA