Patents by Inventor Koma Sato
Koma Sato 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: 20240034060Abstract: A novel inkjet recording device that allows occurrence of scattering to be suppressed without limiting the size of a printed character (font size) is provided. The novel inkjet recording device is so configured that a deflection positive electrode, a deflection negative electrode, or both the deflection positive electrode and the deflection negative electrode constituting a print head can be moved along a direction of ejection of ink droplets in correspondence with the size of a printed character.Type: ApplicationFiled: December 6, 2021Publication date: February 1, 2024Applicant: Hitachi Industrial Equipment Systems Co., Ltd.Inventors: Shoichiro KISANUKI, Manabu KATO, Koma SATO, Taisuke SUGII
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Patent number: 11845273Abstract: The purpose of the present invention is to prevent the flow of air flowing from the outside of a cover part into the cover part via an ink droplet passing hole as air accompanying printing droplets outflows. An inkjet recording device is provided with: a recording mechanism (printing mechanism) having an ink room 101 that ejects an ink column 107, charging electrodes 103A and 103B that charge ink droplets 106 generated from the ink column 107, and deflection electrodes 105A and 105B that deflect charged ink droplets 106A; and a cover part 118 that has an ink droplet passing hole 117 through which the ink droplets 106A deflected by the deflection electrodes 105A and 105B pass and covers the recording mechanism. The inkjet recording device causes the ink droplets 106A to land onto a recording object 116 that moves relative to a recording head 100 to perform recording. A vent hole 130 is provided in a lateral surface of the cover part 118.Type: GrantFiled: August 31, 2020Date of Patent: December 19, 2023Assignee: Hitachi, Ltd.Inventors: Eiji Ishii, Koma Sato, Shoichiro Kisanuki
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Publication number: 20220363054Abstract: The purpose of the present invention is to prevent the flow of air flowing from the outside of a cover part into the cover part via an ink droplet passing hole as air accompanying printing droplets outflows. An inkjet recording device is provided with: a recording mechanism (printing mechanism) having an ink room 101 that ejects an ink column 107, charging electrodes 103A and 103B that charge ink droplets 106 generated from the ink column 107, and deflection electrodes 105A and 105B that deflect charged ink droplets 106A; and a cover part 118 that has an ink droplet passing hole 117 through which the ink droplets 106A deflected by the deflection electrodes 105A and 105B pass and covers the recording mechanism. The inkjet recording device causes the ink droplets 106A to land onto a recording object 116 that moves relative to a recording head 100 to perform recording. A vent hole 130 is provided in a lateral surface of the cover part 118.Type: ApplicationFiled: August 31, 2020Publication date: November 17, 2022Inventors: Eiji ISHII, Koma SATO, Shoichiro KISANUKI
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Publication number: 20220351925Abstract: A gas circuit breaker including: a cylindrical tank; a stator fixed inside the tank; and a mover disposed so as to face the stator. The mover is movable between a closing position and a cutoff position, the mover is in contact with the stator when located in the closing position, and the mover is out of contact with the stator when located in the cutoff position. The stator includes: a stator-side main contact fixed inside the tank; a stator-side resistance contact having a ring shape surrounding the stator-side main contact; and a spring and a dashpot supporting the stator-side resistance contact from a direction opposite to a direction in which the stator-side resistance contact faces the mover. The mover includes: a mover-side main contact disposed so as to face the stator-side main contact; and a mover-side resistance contact disposed in such a way as to face the stator-side resistance contact.Type: ApplicationFiled: January 17, 2020Publication date: November 3, 2022Applicant: Mitsubishi Electric CorporationInventors: Koma SATO, Yuji YOSHITOMO
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Publication number: 20220314633Abstract: There is provided a novel inkjet recording device capable of preventing an ink droplet from being attached to and firmly fixed to a bent pipe part formed at a gutter. The device has a configuration where separately from air flowing through an inflow opening 36 of a gutter 29, secondary air is supplied to a bent region 34bent of a bent pipe part 34, the secondary air flowing in the same direction as air flowing out from an outflow 34out side of the bent pipe part 34. The ink droplet is prevented from being attached and fixed to the bent pipe part 34 formed at the gutter 29 because the secondary air can increase a flow rate of an air flow in an inner peripheral surface region 40 on an inner side of the bent pipe part 34.Type: ApplicationFiled: February 13, 2020Publication date: October 6, 2022Inventors: Koma SATO, Eiji ISHII
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Patent number: 11289291Abstract: A gas circuit breaker includes: a fixed arc contact disposed on an axis of motion, whose tip is directed to one side in a first direction that is parallel to the axis of motion; a movable arc contact that can reciprocate along the axis of motion between a position when in contact with the tip of the fixed arc contact and a position when separated from the tip of the fixed arc contact; and a first permanent magnet and a second permanent magnet as a permanent magnet whose magnetic poles are aligned in a second direction that is a direction perpendicular to the first direction. The fixed arc contact has a shape that is gradually widened in a direction away from the axis of motion from the tip toward another side in the first direction.Type: GrantFiled: June 25, 2018Date of Patent: March 29, 2022Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Daisaku Yamada, Koma Sato
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Publication number: 20210183600Abstract: A gas circuit breaker includes: a fixed arc contact disposed on an axis of motion, whose tip is directed to one side in a first direction that is parallel to the axis of motion; a movable arc contact that can reciprocate along the axis of motion between a position when in contact with the tip of the fixed arc contact and a position when separated from the tip of the fixed arc contact; and a first permanent magnet and a second permanent magnet as a permanent magnet whose magnetic poles are aligned in a second direction that is a direction perpendicular to the first direction. The fixed arc contact has a shape that is gradually widened in a direction away from the axis of motion from the tip toward another side in the first direction.Type: ApplicationFiled: June 25, 2018Publication date: June 17, 2021Applicant: Mitsubishi Electric CorporationInventors: Daisaku YAMADA, Koma SATO
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Publication number: 20180258959Abstract: Provided are a vaned diffuser and a blower, fluid machine, or electric blower provided with the same, which can achieve both low noise and high efficiency by suppressing mixing loss of standing waves occurring in overlapping sections formed by diffuser vanes, and the main flow in the overlapping sections. The vaned diffuser includes a partition plate, a plurality of vanes provided on one surface side of the partition plate, and a plurality of overlapping sections formed to be sandwiched between the partition plate and adjacent vanes among the plurality of vanes. The partition plate has two holes in a direction orthogonal to each of the overlapping sections, and is provided with a flow path that connects a hole on the inner side in the radial direction among the two holes with a hole on the outer side in the radial direction among the two holes in the adjacent overlapping section.Type: ApplicationFiled: August 26, 2015Publication date: September 13, 2018Inventors: Takeshi HONDA, Koma SATO
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Patent number: 9619591Abstract: A response surface can be built with reduced analysis time and shortened time for objective value calculation using the response surface. To achieve this, a connection information generating unit divides data of a machine structure constituting an analysis target into a plurality of parts via an input unit, and parameterizes a distribution of a physical quantity at a connection boundary thereof so as to be given and received as a parameter of a physical quantity of adjacent divided shape data. A response surface generating unit parameterizes a response surface based on the parameterized distribution of the attribute value.Type: GrantFiled: February 23, 2011Date of Patent: April 11, 2017Assignee: Hitachi, Ltd.Inventors: Norihiko Nonaka, Koma Sato
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Publication number: 20130325422Abstract: To enable a response surface to be built with reduced analysis time and to thereby shorten time for objective value calculation using the response surface. Provided are a connection information generating unit (13) which divides data of a machine structure which is an analysis target into a plurality of parts via an input unit (30), and parameterizes a distribution of a physical quantity at a connection boundary thereof so as to be given and received as a parameter of a physical quantity of adjacent divided shape data, and a response surface generating unit (14) which parameterizes a response surface based on the parameterized distribution of the attribute value.Type: ApplicationFiled: February 23, 2011Publication date: December 5, 2013Applicant: Hitachi, Ltd.Inventors: Norihiko Nonaka, Koma Sato