Patents by Inventor Takahiro Yamamoto
Takahiro Yamamoto 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: 20210271551Abstract: A first node group including at least three nodes is predefined in a distributed storage system. Each node of the first node group is configured to send data blocks stored in storage devices managed by the node to other nodes belonging to the first node group. A first node is configured to receive data blocks from two or more other nodes in the first node group. The first node is configured to create a redundant code using a combination of data blocks received from the two or more other nodes and store the created redundant code to a storage device different from storage devices holding the data blocks used to create the redundant code. Combinations of data blocks used to create at least two redundant codes in redundant codes created by the first node are different in combination of logical addresses of constituent data blocks.Type: ApplicationFiled: May 21, 2021Publication date: September 2, 2021Inventors: Hiroaki AKUTSU, Shunji KAWAMURA, Kota YASUNAGA, Takahiro YAMAMOTO, Atsushi KAWAMURA
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Patent number: 11103933Abstract: A step drill and a manufacturing method for a step drill in which cutting performance of a cutting edge of a step portion can be enhanced are provided. A groove includes a first ground portion forming an area embracing a second cutting edge of the step portion and a second ground portion forming an area on the heel side of the step portion relative to the first ground portion. Therefore, a convex blade part can be formed on a first cutting edge by performing grinding with the first ground portion and the second ground portion intersecting with each other. That is, it is possible to form the second cutting edge into a desired shape during grinding of the first ground portion. Therefore, cutting performance of the second cutting edge can be enhanced.Type: GrantFiled: January 22, 2018Date of Patent: August 31, 2021Assignee: OSG CORPORATIONInventor: Takahiro Yamamoto
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Publication number: 20210261830Abstract: The present invention provides a polymer compound peeling agent usable for peeling as many types of polymer compounds as possible and capable of reducing a burden required for a peeling treatment when a polymer compound having adhered to an adhesion object is peeled. The polymer compound peeling agent for peeling a polymer compound having adhered to an adhesion object contains a photoresponsive liquid crystal material having a phase structure reversibly transitioning between an isotropic phase and a liquid crystal phase due to photoisomerization based on irradiation lights of different wavelengths. When the polymer compound is adhered to the adhesion object, the photoresponsive liquid crystal material is contained in the polymer compound with the phase structure set to the isotropic phase, and the phase structure of the photoresponsive liquid crystal material is allowed to transition from the isotropic phase to the liquid crystal phase by photoisomerization based on the light irradiation.Type: ApplicationFiled: May 8, 2020Publication date: August 26, 2021Applicants: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY, TAT INC.Inventors: Takahiro YAMAMOTO, Kyohei TAKUNO, Keita HIROKAWA
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Patent number: 11102391Abstract: A medical image acquisition system includes an imaging device and an image processing device. The imaging device includes: an imaging unit configured to receive light and convert the light into an electric signal so as to generate the imaging signal; an optical unit including a focus mechanism moving one or a plurality of lenses so as to adjust a focal point position, and configured to form an optical image on the imaging unit; a memory configured to store therein unique information of the imaging device; and an auto focus controller configured to totally control the imaging device. The image processing device includes an auto focus evaluation unit configured to perform focusing evaluation based on the imaging signal, and the auto focus controller controls driving of the focus mechanism by referring to the unique information in accordance with an evaluation result by the auto focus evaluation unit.Type: GrantFiled: September 26, 2019Date of Patent: August 24, 2021Assignee: SONY OLYMPUS MEDICAL SOLUTIONS INC.Inventor: Takahiro Yamamoto
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Patent number: 11099240Abstract: According to one embodiment, a device for evaluating an energy storage device includes first processing circuitry and second processing circuitry. The first processing circuitry detects a plurality of times at which an amount of charge of the energy storage device satisfies a threshold condition, based on measurement data on the energy storage device in operation, selects a plurality of time intervals, calculates a charge-discharge efficiency in each of the time intervals based on charge-discharge command values belonging to the time interval, and divides a set of the charge-discharge efficiencies into a plurality of clusters and generates characteristic information on the clusters based on at least one of the measurement data and the charge-discharge command values. The second processing circuitry generates output data for displaying: transition data indicating transition of the charge-discharge efficiency belonging to the cluster; and characteristic information on the cluster.Type: GrantFiled: September 11, 2019Date of Patent: August 24, 2021Assignees: Kabushiki Kaisha Toshiba, Toshiba Energy Systems & Solutions CorporationInventors: Hisaaki Hatano, Takahiro Yamamoto, Kenichi Fujiwara, Masatake Sakuma, Takenori Kobayashi, Yasuhiro Ogura, Kenji Mitsumoto
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Publication number: 20210247934Abstract: In a storage system including a plurality of nodes that provide a storage area and a drive that physically stores data, a parity group is configured with a plurality of data including user data stored in the storage area and redundant data for protecting the user data, a plurality of data in the parity group are stored in a storage area within one predetermined range across a plurality of nodes, and processing for dividing the predetermined range or processing for merging a plurality of predetermined ranges is performed based on a state of the predetermined range.Type: ApplicationFiled: September 11, 2020Publication date: August 12, 2021Applicant: Hitachi, Ltd.Inventors: Takahiro Yamamoto, Hiroto Ebara, Takeru Chiba, Yoshinori Ohira, Masakuni Agetsuma, Mikio Fukuoka
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Publication number: 20210229189Abstract: A step drill and a manufacturing method for a step drill in which cutting performance of a cutting edge of a step portion can be enhanced are provided. A groove includes a first ground portion forming an area embracing a second cutting edge of the step portion and a second ground portion forming an area on the heel side of the step portion relative to the first ground portion. Therefore, a convex blade part can be formed on a first cutting edge by performing grinding with the first ground portion and the second ground portion intersecting with each other. That is, it is possible to form the second cutting edge into a desired shape during grinding of the first ground portion. Therefore, cutting performance of the second cutting edge can be enhanced.Type: ApplicationFiled: January 22, 2018Publication date: July 29, 2021Applicant: OSG CorporationInventor: Takahiro YAMAMOTO
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Publication number: 20210229190Abstract: A three-flute drill includes a body, discharge grooves, cutting edges, thinning edges and gash portions. The discharge grooves are provided in an outer peripheral surface of the body. The cutting edges are provided on ridge sections between inner faces of the discharge grooves and flanks of the body. The thinning edge extends from an end of the cutting edge toward a radially inner side. The gash portion includes an R portion and a straight portion. A first ridge line between the R portion and the flank extends while curving toward a rotation direction, from an end of the thinning edge toward a radially outer side. A second ridge line between the straight portion and the flank extends linearly from an end of the first ridge line toward the radially outer side, and connects to the discharge groove further to the radially inner side than the outer peripheral surface.Type: ApplicationFiled: August 30, 2019Publication date: July 29, 2021Inventors: Takahiro YAMAMOTO, Hiroyasu MAKINO
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Publication number: 20210220903Abstract: A green sand treatment equipment monitoring system that detects that the condition of green sand treatment equipment is deteriorating before the green sand treatment equipment fails, or detects that the quality of green sand treated by the green sand treatment equipment and kneaded sand produced from the green sand is deteriorating before it becomes clear that the green sand and the kneaded sand are defective products. The system including: an information collecting device that collects, in real time, data measured by equipment within green sand treatment equipment; and a diagnostic device that compares, in real time, the collected data with a control value, and displays a diagnosis result if the diagnostic device determines that the collected data has deviated from the control value.Type: ApplicationFiled: October 4, 2018Publication date: July 22, 2021Applicant: SINTOKOGIO, LTD.Inventors: Toshiyuki ISHIKAWA, Hideki MORIMOTO, Koji YAMAGUCHI, Takahiro YAMAMOTO
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Publication number: 20210200639Abstract: This invention provides a storage system enabling it to properly rebuild a storage device involved in failure. In the storage system, a controller repairs data for which an access request has been issued, returns a reply to the source of the access request, and stores the repaired data. As regards data for which access is not requested, the controller executes rebuilding of storage regions corresponding to rebuild management units in priority-based order and changes priority for executing the rebuilding, based on access frequencies for a first period and access frequencies for a second period that is shorter than the first period.Type: ApplicationFiled: September 11, 2020Publication date: July 1, 2021Applicant: Hitachi, Ltd.Inventors: Takahiro Yamamoto, Akira Yamamoto, Masakuni Agetsuma, Yoshinori Ohira, Hiroto Ebara
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Publication number: 20210178927Abstract: There is provided a rechargeable battery evaluation device including: a charging controller configured to switch charging current of a rechargeable battery being charged with first current to second current; and a first state estimator configured to estimate a state of the rechargeable battery based on a feature of change in at least one of a voltage and a charging amount of the rechargeable battery due to switching from the charging current to the second current.Type: ApplicationFiled: February 26, 2021Publication date: June 17, 2021Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Takahiro YAMAMOTO, Kaoru KOIWA, Hisaaki HATANO, Kenichi FUJIWARA, Kohei MARUCHI, Koji TAKAZAWA, Yoshiyuki ISOZAKI, Shun EGUSA, Tomokazu MORITA
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Patent number: 11036585Abstract: A first node group including at least three nodes is predefined in a distributed storage system. Each node of the first node group is configured to send data blocks stored in storage devices managed by the node to other nodes belonging to the first node group. A first node is configured to receive data blocks from two or more other nodes in the first node group. The first node is configured to create a redundant code using a combination of data blocks received from the two or more other nodes and store the created redundant code to a storage device different from storage devices holding the data blocks used to create the redundant code. Combinations of data blocks used to create at least two redundant codes in redundant codes created by the first node are different in combination of logical addresses of constituent data blocks.Type: GrantFiled: November 12, 2019Date of Patent: June 15, 2021Assignee: HITACHI, LTD.Inventors: Hiroaki Akutsu, Shunji Kawamura, Kota Yasunaga, Takahiro Yamamoto, Atsushi Kawamura
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Patent number: 11029850Abstract: A data rebalance control system determines instruction contents for an entity having a rebalance function, based on the capacity information including information indicating a plurality of physical capacities corresponding to a plurality of storing devices which include at least one storing device having a compression function, coupled to one and more computers included in a computer system. The rebalance function of the entity is a function of rebalancing data so that the distribution of the plural logical capacities recognized by the entity, corresponding to the plural storing devices, may be a predetermined distribution. The determined instruction contents include a definition about the logical capacity distribution. The data rebalance control system transmits, to the entity, a rebalance instruction as an instruction to rebalance the data according to the above instruction contents.Type: GrantFiled: December 13, 2016Date of Patent: June 8, 2021Assignee: HITACHI, LTD.Inventors: Sachie Tajima, Hiroaki Akutsu, Takahiro Yamamoto
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Publication number: 20210140378Abstract: A control device for an engine 1 including cylinders, and configured to perform a reduced-cylinder operation by idling some of cylinders. The control device includes a hydraulic valve-stopping mechanism 14b which closes the intake and exhaust valves 41, 51 of the cylinders in response to establishment of the reduced-cylinder operation execution condition, a hydraulic variable valve timing mechanism 19 capable of changing a phase of the exhaust valve 51 of the engine 1, and an ECU 110 which controls the valve-stopping mechanism 14b and the hydraulic variable valve timing mechanism 19. In response to establishment of the reduced-cylinder operation execution condition, the ECU 110 allows the hydraulic variable valve timing mechanism 19 to execute the phase change to the exhaust valve 51, and subsequently allows the valve-stopping mechanism 14b to bring the intake and exhaust valves 41, 51 of the cylinders into closed state.Type: ApplicationFiled: March 19, 2018Publication date: May 13, 2021Applicant: Mazda Motor CorporationInventors: Takahiro YAMAMOTO, Toshiaki NISHIMOTO, Takaya OKUGAWA, Takafumi NISHIO
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Patent number: 10995930Abstract: A rear light is a light disposed in a rear portion of a vehicle, and includes: a light source; a light-transmitting plate that guides incident light from the light source; and a dot portion that is disposed on the light-transmitting plate and reflects incident light to the outside of the vehicle with different reflection intensities depending on positions on the light-transmitting plate.Type: GrantFiled: November 14, 2019Date of Patent: May 4, 2021Assignee: MAZDA MOTOR CORPORATIONInventors: Naoki Yamamoto, Yoshiaki Nakaya, Toshiaki Wakabayashi, Takahiro Yamamoto
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Patent number: 10992852Abstract: [Object] To provide a medical observation device and a control method. [Solution] Provided is a medical observation device including: an imaging optical system including an objective optical system that condenses light from a subject and two image-forming optical systems which have optical axes different from an optical axis of the objective optical system and which cause light condensed by the objective optical system to form an image; and a control unit configured to cause an autofocus operation to be executed by causing a focusing optical member included in the objective optical system to move.Type: GrantFiled: October 6, 2017Date of Patent: April 27, 2021Assignees: SONY CORPORATION, SONY OLYMPUS MEDICAL SOLUTIONS INC.Inventors: Hirotaka Hirano, Tatsuya Ibuka, Takahiro Yamamoto
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Patent number: 10983720Abstract: A storage system is configured to include a plurality of storage nodes, and includes a selection unit which selects a storage node required for setting a data protection level after conversion from among the plurality of storage nodes on the basis of information related to the conversion of the data protection level. The storage node selected by the selection unit manages data using the data protection level after conversion.Type: GrantFiled: September 12, 2019Date of Patent: April 20, 2021Assignee: HITACHI, LTD.Inventors: Masakuni Agetsuma, Takahiro Yamamoto, Hideo Saito, Takaki Nakamura, Takeru Chiba, Hiroto Ebara
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Publication number: 20210102627Abstract: A seal member is disposed in a seal groove at a sliding gap between a shaft and a case. The seal member includes an outer periphery, a curved inner periphery, a mounting face, and an upper face. The mounting face is recessed toward the upper face. The upper face is recessed toward the mounting face. The relation of 0.755?h/H?0.Type: ApplicationFiled: May 11, 2017Publication date: April 8, 2021Inventors: Takahiro YAMAMOTO, Chao JING, Mitsuru MINAMI, Akira UEDA, Yuki NORIDUKI
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Publication number: 20210095566Abstract: An internal gear pump includes an outer rotor having internal teeth, an inner rotor rotatably disposed inside the outer rotor and having external teeth engaging with the internal teeth, and a pump housing. The pump housing includes: a holding recess rotatably holding the outer rotor and having a wall on which an outer peripheral face of the outer rotor is to slide; an inlet to take in a fluid into pump chambers defined between the inner rotor and the outer rotor; an outlet to discharge the fluid from the pump chambers; a case groove provided on the wall and to hold the fluid; and a joint groove provided on an upper land face defined between a trailing end of the inlet and a leading end of the outlet and on which the internal teeth and the external teeth are to slide.Type: ApplicationFiled: June 29, 2020Publication date: April 1, 2021Inventors: Hiroaki HIGASHIOKA, Yoshiaki YUZAWA, Kazuhiro TOEN, Yuichi SUZUKI, Takahiro YAMAMOTO, Takato OGASAWARA
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Patent number: 10945592Abstract: A medical imaging apparatus includes an imaging unit having plural pixels each converting received light into an electric signal, thereby outputting an imaging signal; a memory to record the imaging signal; an evaluation-value calculation unit to calculate an evaluation value of an image generated from the imaging signal; an imaging signal selector to select an imaging signal to be displayed on based on the calculated evaluation value when inputting an instruction signal for selecting the imaging signal to be displayed; a memory controller to extract the selected imaging signal from the memory; and an image processing unit to process the extracted imaging signal controller to generate a display image. The evaluation-value calculation unit calculates the evaluation value by detecting the electric signal generated by each of the plural pixels included in a detection area that is a part of an effective pixel area for generating the display image.Type: GrantFiled: February 12, 2019Date of Patent: March 16, 2021Assignee: SONY OLYMPUS MEDICAL SOLUTIONS INC.Inventors: Yusuke Takenouchi, Takahiro Yamamoto