Patents by Inventor Takafumi Ito
Takafumi Ito 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: 20240266807Abstract: Discharge device includes voltage application circuit that applies output voltage to load including discharge electrode holding liquid to generate discharge in discharge electrode. Voltage application circuit includes a function of varying a magnitude of output voltage, and a function of switching a discharge period that is a period for varying the magnitude of output voltage to any one of a plurality of periods having different lengths with a lapse of time.Type: ApplicationFiled: April 21, 2022Publication date: August 8, 2024Inventors: Makoto IMAI, Hidetoshi HATA, Yohei ISHIGAMI, Takafumi OMORI, Yuki TAKIGAWA, Tetsunori AONO, Yutaka URATANI, Mikio ITO
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Publication number: 20240257490Abstract: A focal position estimation method is a method of estimating a focal position when in focus corresponding to an estimation target image, and includes: an estimation target image acquisition step for acquiring an estimation target image; and a focal position estimation step for estimating a focal position when in focus corresponding to the estimation target image and according to a position in the estimation target image, from the estimation target image acquired in the estimation target image acquisition step, by using a focal position estimation model that is generated through machine learning training and that receives information based on an image as its input and outputs information indicating a focal position when in focus according to a position in the image.Type: ApplicationFiled: January 10, 2024Publication date: August 1, 2024Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Tomochika TAKESHIMA, Akari Ito, Takafumi Higuchi, Yoshinori Hashimoto
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Publication number: 20240238848Abstract: A substrate processing apparatus includes a support unit, a supply unit, an annular member, a rotation unit, a cover member, and an annular flow regulation member disposed above the cover member. The annular member includes an inclined surface inclined downward toward a center of the annular member in a radial direction. The flow regulation member includes a base portion and a protrusion which faces a circumferential portion of the substrate supported on the support unit and protrudes from the base portion toward the circumferential portion of the substrate. The protrusion overlaps the support unit when viewed in a vertical direction. A lower surface of the protrusion is positioned above an upper surface of the substrate supported on the support unit and positioned below an upper surface of the annular member. An inner circumferential surface of the protrusion is inclined radially outward from an upper side to a lower side.Type: ApplicationFiled: January 11, 2024Publication date: July 18, 2024Inventors: Takafumi KINOSHITA, Yuki ITO, Daisuke SAIKI, Tomoyuki HASHIMOTO, Yoshifumi AMANO, Kazuhiro AIURA, Akira FUJITA, Shuhei TAKAHASHI
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Patent number: 12011742Abstract: In an optical sorter that includes an optical detection unit to detect a to-be-sorted material at a detection position, a determining unit to determine a to-be-sorted material to be removed, based on a detection result by the optical detection unit, and an air-jetting unit to blow off and remove the to-be-sorted material to be removed using jet air of a compressed gas, based on a determination result by the determining unit, the air-jetting unit includes a piezoelectric valve to perform valve opening and closing by driving a valve disc utilizing displacement of a piezoelectric element, and a valve driving unit to apply a drive voltage to the piezoelectric element, and the valve driving unit controls the drive voltage applied to the piezoelectric element in accordance with the to-be-sorted material to be removed to thus control a jet-air pressure of the compressed gas for removing the to-be-sorted material.Type: GrantFiled: November 9, 2021Date of Patent: June 18, 2024Assignee: SATAKE CORPORATIONInventors: Takafumi Ito, Tomoyuki Miyamoto
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Patent number: 12004430Abstract: Provided is a piezoelectric valve in which the valve is opened/closed utilizing a displacement of a laminated piezoelectric element, including: a valve main body having a gas pressure chamber that receives compressed gas supplied externally; and an actuator having a valving element, the laminated piezoelectric element that generates a driving force required for operating the valving element as the displacement, and a displacement enlarging mechanism that enlarges the displacement of the laminated piezoelectric element to be acted on the valving element, the actuator being disposed in the valve main body, in which a surface of the laminated piezoelectric element is coated with silicone in a state in which the laminated piezoelectric element is integrated into the actuator.Type: GrantFiled: January 22, 2020Date of Patent: June 4, 2024Assignees: SATAKE CORPORATION, MECHANO TRANSFORMER CORPORATIONInventors: Takafumi Ito, Tadashi Matsushita, Toshiro Higuchi, Sze Keat Chee, Yoshinobu Mizuno
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Publication number: 20240159208Abstract: The present invention suppresses wear of a rod or a component with which the rod is in contact. An electromagnetic suction valve mechanism (electromagnetic valve mechanism) includes a suction valve (valve body), a rod engaged with the suction valve, and a magnetic attraction force generation unit that generates a magnetic attraction force for moving the rod in an axial direction. The rod is provided with a low friction portion. The low friction portion is set to a friction coefficient such that a frictional force generated between the rod and the rod contact component with which the rod is in contact is smaller than a rotational propulsive force of the rod.Type: ApplicationFiled: February 2, 2022Publication date: May 16, 2024Inventors: Takafumi ITO, Kiyotaka OGURA, Masashi NEMOTO, Kenichiro TOKUO
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Publication number: 20240158607Abstract: Infrared absorbing particles include composite tungsten oxide particles, wherein the composite tungsten oxide particles have a hexagonal crystal structure, and wherein the composite tungsten oxide particles are represented by a general formula MxWyOz (where M is one or more elements selected from Cs, Rb, K, Tl, Ba, Ca, Sr, and Fe, W is tungsten, 0 is oxygen, 0.25?x/y?0.39, and 2.70?z/y?2.90).Type: ApplicationFiled: March 10, 2022Publication date: May 16, 2024Inventors: Akinari NOSHITA, Takeshi CHONAN, Takafumi ITO
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Patent number: 11982368Abstract: Provided is a piezoelectric actuator that can reduce a risk of air leakage due to weakening of pressing force of a valve element against a valve seat surface and airtightness. The piezoelectric actuator is used for a piezoelectric valve that opens and closes a valve utilizing displacement of a laminated piezoelectric element. The piezoelectric actuator includes: a valve element; a laminated piezoelectric element that generates a driving force, required for operation of the valve element, as a displacement; and a displacement enlargement mechanism that enlarges a displacement of a laminated piezoelectric element and causes the enlarged displacement to act on the valve element. In the piezoelectric actuator, a surface of the valve element to be in contact with a valve seat of the piezoelectric valve is made flat and smooth in a state in which a tensile load is applied to the laminated piezoelectric element.Type: GrantFiled: March 6, 2020Date of Patent: May 14, 2024Assignees: SATAKE CORPORATION, MECHANO TRANSFORMER CORPORATIONInventors: Takafumi Ito, Tadashi Matsushita, Toshiro Higuchi, Sze Keat Chee, Kunio Ebihara, Toshitada Hirata
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Publication number: 20240102511Abstract: One aspect of the present disclosure provides a first bearing including an inner ring, an outer ring, and cylindrical rollers. The inner ring includes: an insertion groove formed in a lower surface for inserting the cylindrical rollers between an inner raceway surface and an outer raceway surface; a blocking plug configured to block the insertion groove, the blocking plug having a part of the inner raceway surface formed thereon; and a bolt for securing the blocking plug in the insertion groove. In the mating surface of the blocking plug contacted with the bottom surface of the insertion groove, when the shortest length between the bolt insertion hole and the inner raceway surface is shown as La, and the shortest length between the bolt insertion hole and the inner peripheral surface is shown as Lb, the shortest lengths La and Lb satisfy the following formula: La/Lb>0.65.Type: ApplicationFiled: September 21, 2023Publication date: March 28, 2024Inventors: Yuichi ASAKAWA, Takafumi ITO
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Patent number: 11922022Abstract: A method of controlling a storage device including a command terminal, a plurality of data terminals, and a clock terminal, including receiving a clock signal through the clock terminal; outputting a first status data through the data terminals in accordance with only one of a rising edge and a falling edge of the clock signal in a first transfer mode; outputting data through the data terminals in accordance with both the rising edge and the falling edge of the clock signal in a second transfer mode; and receiving and responding to commands via the command terminal in accordance with only one of a rising edge and a falling edge of the clock signal while outputting data through the data terminals in accordance with both the rising edge and the falling edge of the clock signal in the second transfer mode.Type: GrantFiled: December 7, 2022Date of Patent: March 5, 2024Assignee: Kioxia CorporationInventor: Takafumi Ito
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Publication number: 20240058764Abstract: A gas separation membrane module includes at least one hollow fiber membrane element and a casing. The hollow fiber membrane element includes hollow fiber membranes and a cylindrical body. The cylindrical body extends in a longitudinal direction of the hollow fiber membranes, and accommodates the hollow fiber membranes. The hollow fiber membrane element includes sweep gas introduction ports and mixed gas discharge ports. A first supply chamber, a first discharge chamber, a second supply chamber, and a second discharge chamber are positioned between the casing and the hollow fiber membrane element. The first supply chamber, the first discharge chamber, the second supply chamber, and the second discharge chamber are partitioned off from each other.Type: ApplicationFiled: September 29, 2020Publication date: February 22, 2024Applicants: KAWASAKI JUKOGYO KABUSHIKI KAISHA, KURARAY, CO., LTD.Inventors: Katsuya UMEMOTO, Takafumi ITO, Koji FUKUMOTO, Tomoaki UMEMURA, Koji MIYAKE, Kazuhiko EDA, Youhei YABUNO, Kensaku KOMATSU
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Publication number: 20240019040Abstract: A piezoelectric valve including actuators that are respectively adapted to drive valve elements, and a valve body including a gas inlet port, and a plurality of gas outlet ports, the piezoelectric valve is attachable to and detachable from a fluid device via a connector unit including an inlet passage that is communicable at one end with the gas inlet port, and is communicable at another end with an air supply passage of the fluid device, and a plurality of discharge passages that are respectively communicable at one end with the plurality of gas outlet ports, and are respectively communicable at another end with a plurality of gas outlet passages of the fluid device, and a pitch of openings of the plurality of discharge passages on the other end side is greater than a pitch of openings of the plurality of discharge passages on the one end side.Type: ApplicationFiled: November 30, 2021Publication date: January 18, 2024Applicants: SATAKE CORPORATION, MECHANO TRANSFORMER CORPORATIONInventors: Takafumi ITO, Sze Keat CHEE
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Publication number: 20240011573Abstract: A piezoelectric valve including an actuator that drives a valve body; a valve seat plate including a valve seat that is adapted to be positioned in contact with and away from the valve body, and a discharge passage; and a body case that houses the valve seat plate, in which the actuator includes a proximal portion fixed to the valve seat plate, a piezoelectric element having one end portion connected to an attachment face of the proximal portion and extending in a first longitudinal direction, a support portion integrally formed with the proximal portion, the support portion being arranged side-by-side with the piezoelectric element and extending in a second longitudinal direction crossing the first longitudinal direction, an operating portion connected to another end portion of the piezoelectric element and to a distal end portion of the support portion.Type: ApplicationFiled: September 10, 2021Publication date: January 11, 2024Applicants: SATAKE CORPORATION, MECHANO TRANSFORMER CORPORATIONInventors: Takafumi ITO, Sze Keat CHEE
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Patent number: 11858007Abstract: To provide an optical grain sorter that can reduce the proportion of non-defective grains blown off collaterally, and even in a case in which a plurality of defective grains or the like fall down in a state overlapping each other, can blow off all the defective grains or the like.Type: GrantFiled: April 13, 2020Date of Patent: January 2, 2024Assignee: SATAKE CORPORATIONInventors: Takafumi Ito, Tadashi Matsushita, Masaaki Sadamaru
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Publication number: 20230398578Abstract: In an optical sorter that includes an optical detection unit to detect a to-be-sorted material at a detection position, a determining unit to determine a to-be-sorted material to be removed, based on a detection result by the optical detection unit, and an air-jetting unit to blow off and remove the to-be-sorted material to be removed using jet air of a compressed gas, based on a determination result by the determining unit, the air-jetting unit includes a piezoelectric valve to perform valve opening and closing by driving a valve disc utilizing displacement of a piezoelectric element, and a valve driving unit to apply a drive voltage to the piezoelectric element, and the valve driving unit controls the drive voltage applied to the piezoelectric element in accordance with the to-be-sorted material to be removed to thus control a jet-air pressure of the compressed gas for removing the to-be-sorted material.Type: ApplicationFiled: November 9, 2021Publication date: December 14, 2023Applicant: SATAKE CORPORATIONInventors: Takafumi ITO, Tomoyuki MIYAMOTO
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Patent number: 11808373Abstract: A piezoelectric valve includes: a valve main part including a gas pressure chamber receiving compressed gas supplied from outside; a plate inside the valve main part, and an actuator fixed to the plate and inside the valve main part, which is a case with an opening on a front surface. The plate includes a gas discharge path and a valve seat coming into contact with a valve element of the actuator opening and closing the gas discharge path. A lid member that closes the opening of the case has a gas discharge opening communicating with the gas discharge path of the plate; is welded and fixed to a front surface of the plate, where the gas discharge path opens, on an annular welded part surrounding the gas discharge opening; and is welded and fixed to an end surface of the case on an annular welded part on the outer peripheral part.Type: GrantFiled: February 28, 2020Date of Patent: November 7, 2023Assignees: SATAKE CORPORATION, MECHANO TRANSFORMER CORPORATIONInventors: Takafumi Ito, Tadashi Matsushita, Toshiro Higuchi, Sze Keat Chee, Yoshinobu Mizuno, Toshitada Hirata
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Patent number: 11780384Abstract: The present invention provides an automobile sound insulation panel which suitably implements a lightweight sound insulation panel with an expanded sound isolation-target frequency band and improved sound isolation performance. An automobile sound insulation panel includes a first panel member, a second panel member, and an elastic sheet member positioned between the first panel member and the elastic sheet member. The elastic sheet member includes a first projection-recess part. The first panel member abuts on respective upper opening edges of a plurality of recesses that form the first projection-recess part. Individual air layers exist between the second panel member and the elastic sheet member. A continuous air layer exists between the first panel member and the elastic sheet member.Type: GrantFiled: September 25, 2018Date of Patent: October 10, 2023Assignee: KASAI KOGYO CO., LTD.Inventors: Ichiro Fukumoto, Takafumi Ito
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Publication number: 20230283932Abstract: An air treatment apparatus for conditioning air or providing ventilation of air includes: a casing of an apparatus main body; a first sensor disposed outside the casing and configured to output a signal in conformity with a first communication standard; a conversion unit configured to convert the signal output from the first sensor into a signal conforming to a second communication standard higher in tolerance to noise than the first communication standard and to output the signal thus converted; and a main control unit disposed in the casing and configured to receive the signal output from the conversion unit.Type: ApplicationFiled: May 10, 2023Publication date: September 7, 2023Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Hiroaki JINNO, Takafumi ITO, Mitsuya UCHIDA
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Publication number: 20230272225Abstract: A dark powder dispersion liquid including a dark pigment, composite tungsten oxide particles and a solid medium, wherein a mass ratio of the dark pigment to the composite tungsten oxide particles (mass of dark-colored pigment/mass of composite tungsten oxide fine particles) is 0.01 or more and 5 or less.Type: ApplicationFiled: April 9, 2021Publication date: August 31, 2023Applicant: SUMITOMO METAL MINING CO., LTD.Inventors: Takafumi ITO, Keiichi SATO, Mika OKADA
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Publication number: 20230106495Abstract: A memory card is attached to a host device, and includes a data control circuit which transfers data with respect to the host device in synchronism with a rise edge and a fall edge of a clock signal.Type: ApplicationFiled: December 7, 2022Publication date: April 6, 2023Applicant: Kioxia CorporationInventor: Takafumi ITO