Patents by Inventor Takafumi Saito
Takafumi 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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Publication number: 20250095692Abstract: A semiconductor memory device includes: a first via-wiring extending in a first direction; first semiconductor layers arranged in the first direction and electrically connected to the first via-wiring; memory portions arranged in the first direction and electrically connected to the first semiconductor layers; first gate electrodes arranged in the first direction and opposed to the plurality of first semiconductor layers; first wirings arranged in the first direction and electrically connected to the plurality of first gate electrodes; second semiconductor layers arranged in the first direction and electrically connected to the first wirings; second gate electrodes arranged in the first direction and opposed to the second semiconductor layers; a second via-wiring extending in the first direction and electrically connected to the plurality of second gate electrodes; and second wirings arranged in the first direction and electrically connected to the second semiconductor layers.Type: ApplicationFiled: September 13, 2024Publication date: March 20, 2025Applicant: Kioxia CorporationInventors: Takafumi MASUDA, Mutsumi OKAJIMA, Nobuyoshi SAITO, Keiji IKEDA
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Patent number: 12242194Abstract: A resist underlayer film-forming composition in which a coating film having high flattening properties is formed on a substrate. A resist underlayer film-forming composition including an epoxy adduct (C) obtained by reacting an epoxy group-containing compound (A) with an epoxy adduct-forming compound (B), wherein one or both of the epoxy group-containing compound (A) and the epoxy adduct-forming compound (B) contain an optionally branched alkyl group having a carbon atom number of three or more. The epoxy adduct-forming compound (B) is at least one compound selected from the group consisting of carboxylic acid (B1), carboxylic anhydride (B2), a phenol compound (B3), a hydroxyl group-containing compound (B4), a thiol compound (B5), an amino compound (B6), and an imide compound (B7). The optionally branched alkyl group having a carbon atom number of three or more is contained in the epoxy adduct-forming compound (B). The optionally branched alkyl group has a C3-19 alkyl group.Type: GrantFiled: June 20, 2016Date of Patent: March 4, 2025Assignee: NISSAN CHEMICAL INDUSTRIES, LTD.Inventors: Takafumi Endo, Daigo Saito, Ryo Karasawa, Rikimaru Sakamoto
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Publication number: 20250070024Abstract: A semiconductor memory device includes a substrate, first semiconductor layers stacked in a first direction intersecting the substrate, a first via wiring extending in the direction and connected to the layers, memory units stacked in the direction and connected to the layers, first gate electrodes stacked in the direction and facing the layers, first wirings stacked in the direction, extending in a second direction intersecting the first direction, and connected to the first electrodes, second semiconductor layers stacked in the first direction and connected to the first electrodes via the first wirings, a second via wiring extending in the first direction and connected to the second layers, and second gate electrodes stacked in the first direction and facing the second layers. The second layers include a different material from the first layers, or a composition ratio of materials of the second layers is different from that of the first layers.Type: ApplicationFiled: August 21, 2024Publication date: February 27, 2025Inventors: Takafumi MASUDA, Mutsumi OKAJIMA, Nobuyoshi SAITO, Keiji IKEDA
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Patent number: 11946431Abstract: Provided is an electronically controlled throttle device configured to reduce size of a motor and concurrently to enhance reduction of a noise of the motor. The electronically controlled throttle device includes: a body including a throttle valve; a motor provided with a brush, the motor configured to drive the throttle valve; a bracket (20F) configured to attach the motor to the body; a pigtail connected electrically to the brush, and arranged on a surface of the bracket (20F), the surface facing the motor; and a filter circuit (an inductor (31), a capacitor (32), and a resistor (33)) connected electrically to the pigtail and configured to reduce the noise of the motor. The filter circuit is arranged on a surface of the bracket (20F), the surface opposite the motor.Type: GrantFiled: July 6, 2021Date of Patent: April 2, 2024Assignee: HITACHI ASTEMO, LTD.Inventors: Hidefumi Hatsuzawa, Takuya Tanaka, Takafumi Saito
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Publication number: 20230243312Abstract: Provided is an electronically controlled throttle device configured to reduce size of a motor and concurrently to enhance reduction of a noise of the motor. The electronically controlled throttle device includes: a body including a throttle valve; a motor provided with a brush, the motor configured to drive the throttle valve; a bracket (20F) configured to attach the motor to the body; a pigtail connected electrically to the brush, and arranged on a surface of the bracket (20F), the surface facing the motor; and a filter circuit (an inductor (31), a capacitor (32), and a resistor (33)) connected electrically to the pigtail and configured to reduce the noise of the motor. The filter circuit is arranged on a surface of the bracket (20F), the surface opposite the motor.Type: ApplicationFiled: July 6, 2021Publication date: August 3, 2023Applicant: HITACHI ASTEMO, LTD.Inventors: Hidefumi HATSUZAWA, Takuya TANAKA, Takafumi SAITO
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Patent number: 11715997Abstract: An object of the present invention is to provide a structure capable of stably removing noise. A DC motor includes: a brush in sliding contact with a commutator; a brush holder base holding the brush; a flexible wiring connected to the brush; and a choke coil connected to the brush via the wiring, wherein the brush holder base has a clamping portion restraining the wiring to extend along a direction parallel to a direction of a magnetic flux generated in the choke coil.Type: GrantFiled: July 10, 2020Date of Patent: August 1, 2023Assignee: HITACHI ASTEMO, LTD.Inventors: Takafumi Saito, Yasuo Saito, Daisuke Yamashita, Keijirou Okabe
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Publication number: 20220255405Abstract: An object of the present invention is to provide a structure capable of stably removing noise. A DC motor includes: a brush in sliding contact with a commutator; a brush holder base holding the brush; a flexible wiring connected to the brush; and a choke coil connected to the brush via the wiring, wherein the brush holder base has a clamping portion restraining the wiring to extend along a direction parallel to a direction of a magnetic flux generated in the choke coil.Type: ApplicationFiled: July 10, 2020Publication date: August 11, 2022Applicant: HITACHI ASTEMO, LTD.Inventors: Takafumi SAITO, Yasuo SAITO, Daisuke YAMASHITA, Keijirou OKABE
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Publication number: 20210058059Abstract: A pedestal for a vibration element, a vibrator, and an oscillator are provided, which can improve vibration resistance by suppressing the influence of vibration from the outside and can improve phase noise characteristics. The pedestal includes connection parts 14 connected to a substrate of a package 3 along the long side of a main body, gap parts 10c and 10d formed inside the connection parts 14 along the long side, a mounting part 11 for a crystal piece 2 sandwiched between the gap parts 10c and 10d, and arc-shaped curved arm parts 13 connecting the mounting part 11 and the connection parts 14 at the four corners of the main body. The vibrator and the oscillator each include the pedestal.Type: ApplicationFiled: November 5, 2020Publication date: February 25, 2021Inventors: Takayuki ISHIKAWA, Takashi MATSUMOTO, Kazumasa IKOMA, Takafumi SAITO
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Publication number: 20190043684Abstract: Provided are a rotary operating element which is rotated about an axis of a rotation shaft with an operator's finger when operating or stopping vehicle-mounted equipment mounted on a vehicle, a rotary encoder which detects displacement of rotation of the rotary operating element about the axis; and a housing which accommodates the rotary operating element and the rotary encoder and holds the rotary operating element so as to be relatively rotatable about the axis. The rotary operating element has an accommodating chamber in which the rotary encoder is accommodated.Type: ApplicationFiled: July 2, 2018Publication date: February 7, 2019Applicant: Yazaki CorporationInventors: Yoshiyuki MIZUNO, Takafumi SAITO
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Publication number: 20190042063Abstract: A vehicle-mounted equipment operating device includes an operation unit allowing an operator to perform an operation with a finger, an operation mode detection unit detecting an operation mode of the operator, a display device, and a control device capable of performing display control of the operation-related information on the display device and shifting a screen from a current level screen to a level screen of a level according to an output signal of the operation mode detection unit, and the control device displays a home screen icon, which is an icon representing an operation mode with respect to the operation unit for a guide to a home screen in a lower level screen and expresses both a house and an arrow by joining an upper side of a rectangle and a base side of a triangle, on the lower level screen as the operation-related information.Type: ApplicationFiled: June 27, 2018Publication date: February 7, 2019Applicant: Yazaki CorporationInventors: Yoshiyuki MIZUNO, Takafumi SAITO, Hideaki MORI
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Publication number: 20190006918Abstract: Provided is a direct current (DC) motor in which downsizing of the DC motor is possible while a choke coil and a capacitor are mounted on a brush holder to reduce radio noise. A DC motor includes a brush holder, in which the brush holder includes: a brush holder base formed of an insulating material; at least a pair of brushes that supplies power to a commutator; a spring that brings the brush in sliding contact with an outer circumferential portion of the commutator; and a choke coil and a capacitor for reducing radio noise, and the capacitor is provided on a surface of the brush holder, the surface being different from a surface on which the choke coil is provided.Type: ApplicationFiled: December 2, 2016Publication date: January 3, 2019Inventors: Kenji KUNIYA, Yasuo SAITO, Takafumi SAITO, Keijirou OKABE
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Publication number: 20180086289Abstract: A vehicle-mounted equipment operating device includes a contact operating surface which is prepared at least as an operation unit when an operator operates or stops a vehicle-mounted equipment mounted on a vehicle and is arranged at a position that is closer to a vehicle front side than a steering wheel and enables an operation of the operator without taking off a hand from the steering wheel, and to which a plurality of contact operation modes where the operator performs a contact operation with a finger when operating or stopping the vehicle-mounted equipment are assigned.Type: ApplicationFiled: September 26, 2017Publication date: March 29, 2018Applicant: Yazaki CorporationInventors: Yoshiyuki MIZUNO, Takafumi SAITO
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Publication number: 20170123626Abstract: A contact operating region in an input device disposed on a vehicle front side than a steering wheel and at a position which is operable by an operator without releasing his hand from the steering wheel has at least one reference operation surface, and a three-dimensional operation surface. A virtual input section graphic and a plurality of selection icons are displayed on a display region of a display device, the virtual input section graphic having a virtual reference operation surface and a virtual three-dimensional operation surface, the plurality of selection icons being related to the operation of a vehicle onboard device disposed to be spaced apart from each other. A controller moves the virtual input section graphic and the selection icons in the direction in which the virtual reference operation surface and the virtual three-dimensional operation surface are alternately connected.Type: ApplicationFiled: November 1, 2016Publication date: May 4, 2017Inventors: Takafumi SAITO, Yoshiyuki MIZUNO
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Publication number: 20160264070Abstract: A vehicle operation system includes: a longitudinal member projected and extended from a steering column; an action detecting unit that is arranged at a distal end in a projecting direction of the longitudinal member, and detects an operation form of an operator in operating an onboard device at the distal end or in a sensing space with the distal end being a base point; and a controller that transmits a command to the onboard device based on an output signal from the action detecting unit in accordance with the operation form of the operator. The action detecting unit sets an operation direction along natural movement of a finger of the operator gripping a steering wheel, and allocates a function of the onboard device to the operation direction.Type: ApplicationFiled: March 8, 2016Publication date: September 15, 2016Inventors: Shuhei Urakami, Takafumi Saito
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Publication number: 20130328339Abstract: A back coat, a metal thin film and a top coat are applied to an outer surface of a base member of a visor cover of a vehicle door mirror device, and in particular the metal thin film is formed by vapor deposition. The film thickness of the metal thin film can accordingly be made thinner than a case of when forming a metal film by plating, and the thickness of the metal thin film is easily managed. Accordingly, unwanted deformation of the visor cover when forming the metal thin film to the outer surface of the visor cover is not occurred, or deformation occurring in the visor cover can be suppressed.Type: ApplicationFiled: June 10, 2013Publication date: December 12, 2013Inventors: Takehiro HAMADA, Masakazu IWATSUKI, Koichi HARUTA, Takafumi SAITO, Kengo OKAMOTO, Shinobu CHIBA
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Publication number: 20130116148Abstract: Disclosed is a method for promptly identifying a liver disease. A normal person or a liver disease such as drug-induced liver injury, asymptomatic hepatitis B carrier, chronic hepatitis B, hepatitis C with persistently normal ALT, chronic hepatitis C, cirrhosis type C, hepatocellular carcinoma, simple steatosis, or non-alcoholic steatohepatitis is identified by measuring the concentration of a ?-Glu-X (wherein X represents an amino acid or an amine) peptide or the level of AST or ALT in blood and carrying out, for example, a multiple logistic regression based on the measured value.Type: ApplicationFiled: May 17, 2011Publication date: May 9, 2013Applicant: KEIO UNIVERSITYInventors: Tomoyoshi Soga, Masahiro Sugimoto, Makoto Suematsu, Takafumi Saito, Sumio Kawata