Patents by Inventor Tatsuya Saito
Tatsuya Saito 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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Patent number: 11968820Abstract: A novel semiconductor device is provided. The semiconductor device includes a driver circuit and a first transistor layer to a third transistor layer. The first transistor layer includes a first memory cell including a first transistor and a first capacitor. The second transistor layer includes a second memory cell including a second transistor and a second capacitor. The third transistor layer includes a switching circuit and an amplifier circuit. The first transistor is electrically connected to a first local bit line. The second transistor is electrically connected to a second local bit line. The switching circuit has a function of selecting the first local bit line or the second local bit line and electrically connecting the selected local bit line to the amplifier circuit. The first transistor layer to the third transistor layer are provided over the silicon substrate. The third transistor layer is provided between the first transistor layer and the second transistor layer.Type: GrantFiled: February 11, 2020Date of Patent: April 23, 2024Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Tatsuya Onuki, Yuto Yakubo, Seiya Saito
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Patent number: 11948626Abstract: A novel semiconductor device is provided. The semiconductor device includes a driver circuit including a plurality of transistors using a silicon substrate for channels, and a first transistor layer and a second transistor layer including a plurality of transistors using a metal oxide for channels. The first transistor layer and the second transistor layer are provided over the silicon substrate layer. The first transistor layer includes a first memory cell including a first transistor and a first capacitor. The first transistor is electrically connected to a first local bit line. The second transistor layer includes a second transistor whose gate is electrically connected to the first local bit line and a first correction circuit electrically connected to the second transistor. The first correction circuit is electrically connected to a first global bit line.Type: GrantFiled: March 16, 2020Date of Patent: April 2, 2024Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Seiya Saito, Yuto Yakubo, Tatsuya Onuki, Shuhei Nagatsuka
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Publication number: 20240096973Abstract: A semiconductor device includes: a first electrode; a semiconductor part located on the first electrode; a second electrode located in a first region on the semiconductor part; a third electrode located in a second region on the semiconductor part; an insulating member located in the semiconductor part in the first and second regions; a fourth electrode located in the insulating member in the first and second regions; a fifth electrode located in the insulating member between the first electrode and the fourth electrode in the first and second regions; and a conductive member located at least in the second region. The conductive member is connected to the third, fourth, and fifth electrodes.Type: ApplicationFiled: December 19, 2022Publication date: March 21, 2024Inventors: Keita SAITO, Kouta TOMITA, Tatsuya NISHIWAKI, Yasunobu SAITO
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Patent number: 11932666Abstract: Provided is a polymerizable compound represented by a Formula E-1 or Formula E-2 shown in the description. In Formula E-1 or Formula E-2, R1 represents an alkoxy group, —NRN2, a hydroxy group, an aryl group, or an alkyl group, wherein RN each independently represents a hydrogen atom or an alkyl group having 1 to 10 carbon atoms; n represents an integer from 1 to 5; R3 represents a hydrogen atom, an acetyl group, a phenoxyacetyl group, a pivaloyl group, a benzyl group, a 4-methoxybenzyl group, a benzoyl group, a triphenylmethyl group, a 4,4?-dimethoxytrityl (DMTr) group, a 4-methoxytrityl (MMTr) group, a 9-phenylxanthenyl group, a trimethylsilyl group, a cyanomethoxymethyl group, a 2-(cyanoethoxy)ethyl group, or a cyanoethoxymethyl group; and X represents a structure represented by any one of Formula B-1 to Formula B-5 shown in the description.Type: GrantFiled: October 13, 2022Date of Patent: March 19, 2024Assignee: TOKYO UNIVERSITY OF SCIENCE FOUNDATIONInventors: Takeshi Wada, Tatsuya Saito, Yuka Ishii, Yohei Nukaga
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Patent number: 11923726Abstract: This stator core is a stator core for a rotating electric machine of an axial gap type and includes a body portion formed by a compaction-molded body of soft magnetic powder whose surfaces are coated with insulating films, wherein the body portion is provided with one or a plurality of through holes.Type: GrantFiled: September 5, 2019Date of Patent: March 5, 2024Assignees: SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO ELECTRIC SINTERED ALLOY, LTD.Inventors: Yuuichi Nakamura, Tomoyuki Ueno, Tatsuya Saito
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Patent number: 11901773Abstract: This axial gap motor includes: a stator; and a rotor provided so as to be opposed to the stator in an axial direction. The rotor includes an annular rotor yoke, and a plurality of magnets provided to contact one surface of the rotor yoke so as to be arranged at predetermined intervals along a circumferential direction with magnetic poles thereof being different alternately. The one surface includes a plurality of facing areas facing and contacting the plurality of magnets, and a non-facing area not facing the plurality of magnets. The non-facing area includes partial areas each located between a pair of the facing areas adjacent to each other in the circumferential direction among the plurality of facing areas. The partial areas are formed to be recesses recessed in the axial direction relative to the facing areas.Type: GrantFiled: September 5, 2019Date of Patent: February 13, 2024Assignees: SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO ELECTRIC SINTERED ALLOY, LTD.Inventors: Yuuichi Nakamura, Tomoyuki Ueno, Tatsuya Saito
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Patent number: 11894720Abstract: A core used in an axial gap type rotating electrical machine includes an annular yoke having a plurality of through-holes disposed in a circumferential direction, and a plurality of columnar teeth disposed in the circumferential direction of the yoke, each of the plurality of columnar teeth including one end inserted into each of the plurality of through-holes. The yoke and each of the teeth are composed of a powder compact separate from each other, and the one end of each of the teeth is off-center in the through-hole.Type: GrantFiled: December 11, 2019Date of Patent: February 6, 2024Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Tatsuya Saito, Yuichi Nakamura, Tomoyuki Ueno
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Patent number: 11888351Abstract: A core that is used in an axial-gap rotary electric machine and that includes a body, and frame-shaped flange portions. The body includes an annular yoke and columnar teeth that are arranged in a circumferential direction of the yoke. The flange portions are fixed to end portions of the respective teeth. The yoke and the teeth are composed of a single powder compact. Each of the flange portions is composed of a powder compact that has a through-hole. The end portion of each of the teeth is inserted in the through-hole, and an end surface of each of the teeth is exposed from the through-hole. A ratio of an area of the end surface of each of the teeth to an area within an outer circumferential edge of each of the flange portions is 7.5% or more in a plan view in an axial direction of the yoke.Type: GrantFiled: September 5, 2019Date of Patent: January 30, 2024Assignees: SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO ELECTRIC SINTERED ALLOY, LTD.Inventors: Tatsuya Saito, Yuichi Nakamura, Tomoyuki Ueno
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Patent number: 11888347Abstract: A core for use in an axial-gap rotary electric machine is annular and includes a plurality of core pieces into which the core is divided in a circumferential direction. Each core piece includes a yoke portion and a tooth portion that is formed integrally with the yoke portion and that projects from the yoke portion in an axial direction. Each yoke portion includes a plurality of protrusions provided on one side surface connected to the yoke portion of an adjacent one of the core pieces, and a plurality of recesses provided on other side surface connected to the yoke portion of another adjacent one of the core pieces, the recesses corresponding to the protrusions. An interval between the protrusions is 80% or less of a length of the one side surface of the yoke portion, the length being a direct distance between inner and outer peripheries of the yoke portion.Type: GrantFiled: October 17, 2019Date of Patent: January 30, 2024Assignees: SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO ELECTRIC SINTERED ALLOY, LTD.Inventors: Tatsuya Saito, Tomoyuki Ueno
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Patent number: 11869691Abstract: A powder magnetic core includes a compact including soft magnetic powder, and an insulating-resin coating that covers a portion of a surface of the compact. A ratio of an area of the insulating-resin coating to a surface area of the compact is lower than or equal to 85%, and a maximum depth of unevenness on a surface of the insulating-resin coating is smaller than or equal to 20 ?m.Type: GrantFiled: July 23, 2018Date of Patent: January 9, 2024Assignees: SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO ELECTRIC SINTERED ALLOY, LTD.Inventors: Tatsuya Saito, Asako Watanabe, Tomoyuki Ueno
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Publication number: 20230417620Abstract: The gas permeation amount of each of a plurality of rubber sealing components manufactured according to the same specifications is measured by helium leak testing, and for each sealing component, sample data is acquired which is formed of a pair of a measurement value at a criterion time CT in an unstable period A, during which the permeation amount increases, and a measurement value in a stable period B, during which the permeation amount is stable (sample acquisition). The relationship between the measurement value at the criterion time CT and the measurement value in the stable period is defined by a linear function on the basis of the plurality of acquired sample data (function definition).Type: ApplicationFiled: December 15, 2021Publication date: December 28, 2023Inventors: Tatsuya SAITO, Tomohiro KAWAI
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Patent number: 11835562Abstract: A detector that detects or oscillates an electromagnetic wave, the detector including a plurality of antennas having a rectifying element, wherein the plurality of arranged antennas at least include: a first antenna having a first resonant frequency; and a second antenna having a second resonant frequency that differs from the first resonant frequency.Type: GrantFiled: September 23, 2021Date of Patent: December 5, 2023Assignee: CANON KABUSHIKI KAISHAInventors: Tatsuya Saito, Takahiro Yajima, Takahiro Sato
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Patent number: 11794244Abstract: A method for manufacturing a dust core, including: a step of preparing a raw material powder including a coated pure iron powder composed of a plurality of pure iron particles each having an insulating coating layer, a coated iron alloy powder composed of a plurality of iron alloy particles each having an insulating coating layer, and a metal soap; a step of manufacturing a molded article by performing a compression molding of the raw material powder filled in a mold; and a step of performing a heat treatment of the molded article to eliminate distortions in the coated pure iron powder and the coated iron alloy powder, wherein a difference Tm?Td between a melting point Tm of the metal soap and a temperature Td of the mold in the step of manufacturing the molded article is greater than or equal to 90° C.Type: GrantFiled: August 10, 2018Date of Patent: October 24, 2023Assignees: Sumitomo Electric Industries, Ltd., SUMITOMO ELECTRIC SINTERED ALLOY, LTD.Inventors: Tatsuya Saito, Asako Watanabe, Tomoyuki Ueno, Hijiri Tsuruta
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Patent number: 11791672Abstract: A core for use in an axial gap rotating electric machine, the core including: a yoke having an annular plate shape; and a plurality of teeth having a columnar shape arranged at intervals in a circumferential direction of the yoke, wherein the yoke has: an outer-circumferential face; an inner-circumferential face; a first face having a flat shape connecting the outer-circumferential face and the inner-circumferential face to each other; and a plurality of recessed portions connected to the first face, each of the plurality of teeth has an outer-circumferential face protruding in an axial direction of the yoke with respect to the first face, each of the plurality of recessed portions are connected to at least a portion of each one of the plurality of teeth in a circumferential direction of the outer-circumferential face, all shortest distances between at least one of an outer-circumferential edge of the first face and an inner-circumferential edge of the first face and the outer-circumferential faces of the pluType: GrantFiled: December 13, 2019Date of Patent: October 17, 2023Assignees: SUMITOMO ELECTRIC INDUSTRIES, LTD., Sumitomo Electric Sintered Alloy, Ltd.Inventors: Tatsuya Saito, Tomoyuki Ueno, Yuka Fukunaga, Hijiri Tsuruta, Shinichi Hirono
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Patent number: 11770034Abstract: A core is a core included in a rotor or a stator of an axial-gap rotating electrical machine, in which the core includes a block-shaped first member and a plate-shaped second member that are constituted by powder compacts; the first member includes a first surface that faces the second member, and a first coupling portion that is formed at the first surface; the second member includes a second surface that faces the first surface, and a second coupling portion that is formed at the second surface and that is coupled to the first coupling portion; one of the first coupling portion and the second coupling portion is constituted by a protrusion, and the other one is constituted by a recess having a shape corresponding to the protrusion.Type: GrantFiled: July 11, 2019Date of Patent: September 26, 2023Assignees: SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO ELECTRIC SINTERED ALLOY, LTD.Inventors: Tatsuya Saito, Yuichi Nakamura, Tomoyuki Ueno, Hijiri Tsuruta, Shinichi Hirono
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Patent number: 11769754Abstract: A manufacturing method for a semiconductor apparatus sequentially includes bonding a first chip and a second chip together using an adhesive. The first chip includes a first electrode and has a protrusion, and the second chip has a recess. In the bonding, the first chip and the second chip are bonded together in such a manner that the protrusion is positioned into the recess. Further, the method includes forming a through hole in the second chip to expose the first electrode, the first surface being opposite to a second surface having the recess, and forming the second electrode which is electrically connected to the first electrode, in the through hole.Type: GrantFiled: November 25, 2019Date of Patent: September 26, 2023Assignee: Canon Kabushiki KaishaInventors: Tatsuya Saito, Takayuki Sumida
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Publication number: 20230143036Abstract: A core piece includes a first member in a column form and a second member in a plate form, the first member and the second member being configured by a green compact in which the first member and the second member are integrally formed, the green compact includes a plurality of soft magnetic particles having a flat shape, a first average aspect ratio of the soft magnetic particles is greater than or equal to 1.2 in a first cross section of the first member, a second average aspect ratio of the soft magnetic particles is greater than or equal to 1.2 in a second cross section of the second member, each of the first average aspect ratio and the second average aspect ratio is related to an average of lengths of soft magnetic particles in a direction of the stator core.Type: ApplicationFiled: March 31, 2021Publication date: May 11, 2023Applicants: Sumitomo Electric Industries, Ltd., SUMITOMO ELECTRIC SINTERED ALLOY, LTD.Inventors: Tatsuya SAITO, Tomoyuki UENO, Tomoyuki ISHIMINE
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Publication number: 20230134477Abstract: A core piece that is circularly arranged to construct a stator core of an axial gap type rotary electric machine includes: a first member in a column form extending in an axial direction of the stator core; a second member in a plate form disposed on a first end side of the axial direction in the first member; and a third member in a plate form disposed on a second end side of the axial direction in the first member, the first member has a peripheral surface connecting with the second member and the third member, the second member has a protruding portion projecting outwardly from the peripheral surface of the first member, the third member has a protruding portion projecting outwardly from the peripheral surface of the first member, and the first member, the second member, and the third member are configured by an integrally molded green compact.Type: ApplicationFiled: December 27, 2022Publication date: May 4, 2023Applicants: Sumitomo Electric Industries, Ltd., Sumitomo Electric Sintered Alloy, Ltd.Inventors: Tatsuya SAITO, Tomoyuki UENO
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Patent number: 11636963Abstract: A method for manufacturing a powder magnetic core, including a step of compacting a raw material powder to form a compact, a step of performing a first heat treatment on the compact to obtain a first heat-treated body, and a step of performing a second heat treatment on the first heat-treated body to obtain a second heat-treated body, wherein the raw material powder contains a soft magnetic powder and a lubricant that has a melting point Tm, the first heat treatment is performed in a temperature range from Tm to Tm+50° C. inclusive for a time longer than 10 minutes, and the second heat treatment is performed in a temperature range from 400° C. to 900° C. inclusive for a time of 3 minutes to 90 minutes inclusive, the temperature range of the second heat treatment being higher than the temperature range of the first heat treatment.Type: GrantFiled: June 18, 2019Date of Patent: April 25, 2023Assignees: SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO ELECTRIC SINTERED ALLOY, LTD.Inventors: Tatsuya Saito, Hijiri Tsuruta, Tomoyuki Ueno
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Publication number: 20230108357Abstract: Provided is a polymerizable compound represented by a Formula E-1 or Formula E-2 shown in the description. In Formula E-1 or Formula E-2, R1 represents an alkoxy group, —NRN2, a hydroxy group, an aryl group, or an alkyl group, wherein RN each independently represents a hydrogen atom or an alkyl group having 1 to 10 carbon atoms; n represents an integer from 1 to 5; R3 represents a hydrogen atom, an acetyl group, a phenoxyacetyl group, a pivaloyl group, a benzyl group, a 4-methoxybenzyl group, a benzoyl group, a triphenylmethyl group, a 4,4?-dimethoxytrityl (DMTr) group, a 4-methoxytrityl (MMTr) group, a 9-phenylxanthenyl group, a trimethylsilyl group, a cyanomethoxymethyl group, a 2-(cyanoethoxy)ethyl group, or a cyanoethoxymethyl group; and X represents a structure represented by any one of Formula B-1 to Formula B-5 shown in the description.Type: ApplicationFiled: October 13, 2022Publication date: April 6, 2023Inventors: Takeshi Wada, Tatsuya Saito, Yuka Ishii, Yohei Nukaga