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).

  • Patent number: 11974432
    Abstract: According to one embodiment, a semiconductor storage device includes a plurality of electrode films on a substrate, spaced from one another in a first direction. A charge storage film is provided on a side face the electrode films via a first insulating film. A semiconductor film is provided on a side face of the charge storage film via a second insulating film. The charge storage film includes a plurality of insulator regions contacting the first insulating film, a plurality of semiconductor or conductor regions provided between the insulator regions and another insulator region.
    Type: Grant
    Filed: August 26, 2021
    Date of Patent: April 30, 2024
    Assignee: Kioxia Corporation
    Inventors: Hiroyuki Yamashita, Yuta Saito, Keiichi Sawa, Kazuhiro Matsuo, Yuta Kamiya, Shinji Mori, Kota Takahashi, Junichi Kaneyama, Tomoki Ishimaru, Kenichiro Toratani, Ha Hoang, Shouji Honda, Takafumi Ochiai
  • Patent number: 11946431
    Abstract: 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: Grant
    Filed: July 6, 2021
    Date of Patent: April 2, 2024
    Assignee: HITACHI ASTEMO, LTD.
    Inventors: Hidefumi Hatsuzawa, Takuya Tanaka, Takafumi Saito
  • Publication number: 20240087616
    Abstract: A semiconductor memory device comprises: memory layers arranged in a first direction; and a first and a second via wirings having different positions in a second direction. The memory layer comprises: a first transistor electrically connected to the first via wiring; a memory portion electrically connected to the first transistor; a wiring electrically connected to the first transistor; a second transistor electrically connected to the second via wiring; and an electrode provided in a current path between the second transistor and the wiring. The second transistor comprises: a semiconductor layer electrically connected to the electrode and the second via wiring; and a gate electrode facing the semiconductor layer. The semiconductor layer faces at least one of surfaces on one side or the other side in the first direction of the gate electrode. The electrode includes a portion arranged with the second via wiring in a third direction.
    Type: Application
    Filed: September 8, 2023
    Publication date: March 14, 2024
    Applicant: Kioxia Corporation
    Inventors: Takafumi MASUDA, Nobuyoshi SAITO, Mutsumi OKAJIMA, Keiji IKEDA
  • Publication number: 20240087911
    Abstract: The present invention addresses the issue of providing a method for removing a transition metal oxide adhered to a transition metal film in a process for manufacturing a semiconductor element, and of providing a treatment liquid. Specifically, the present invention provides a method for treating a semiconductor of a transition metal, the method including, in a semiconductor formation process, a step of removing a transition metal oxide and a step of removing the transition metal. The present invention also provides a reducing agent-containing treatment liquid for a transition metal oxide, wherein the concentration of the reducing agent contained in the reducing agent-containing treatment liquid is 0.01 mass % or more and 50 mass % or less.
    Type: Application
    Filed: December 13, 2021
    Publication date: March 14, 2024
    Applicant: TOKUYAMA CORPORATION
    Inventors: Kohei SAITO, Tomoaki SATO, Yuki KIKKAWA, Takafumi SHIMODA, Takayuki NEGISHI
  • Publication number: 20240081042
    Abstract: A semiconductor memory device comprises: a first memory layer; and a first via wiring and a second via wiring extending in a first direction, and having different positions from each other in a second direction. The first memory layer comprises: a first transistor electrically connected to the first via wiring; a memory portion electrically connected to the first transistor; a first wiring electrically connected to the first transistor; a second transistor electrically connected to the second via wiring and the first wiring; a first electrode electrically connected to the second transistor; and a second electrode electrically connected to the first wiring and first electrode. A length of the second electrode in the first direction is larger than one or both of a length of the first wiring in the first direction and a length of the first conductive layer in the first direction.
    Type: Application
    Filed: September 1, 2023
    Publication date: March 7, 2024
    Applicant: Kioxia Corporation
    Inventors: Takafumi MASUDA, Mutsumi OKAJIMA, Nobuyoshi SAITO, Keiji IKEDA
  • Publication number: 20240068470
    Abstract: An electric compressor includes: a compression part; an electric motor; an inverter; a housing including a plurality of housing forming members made of metal; a seal member that has an insulation property and is provided between the housing forming members adjacent to each other; and a potential equalization member that is made of metal and is in contact with both the adjacent housing forming members to equalize potentials of the adjacent housing forming members. The adjacent housing forming members include mating surfaces, respectively. An insertion hole is formed in one of the mating surfaces of the adjacent housing forming members, at a position in which the seal member is not provided. The potential equalization member includes an insertion portion inserted into the insertion hole, and a contact portion that is a plate portion extending in a gap between the mating surfaces and is in contact with both the mating surfaces.
    Type: Application
    Filed: July 25, 2023
    Publication date: February 29, 2024
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Ken NAMIKI, Takuro Yamashita, Takumi Maeda, Akinori Tanabe, Takafumi Konishi, Takahiro Suzuki, Yoshitaka Saito
  • Publication number: 20230243312
    Abstract: 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: Application
    Filed: July 6, 2021
    Publication date: August 3, 2023
    Applicant: HITACHI ASTEMO, LTD.
    Inventors: Hidefumi HATSUZAWA, Takuya TANAKA, Takafumi SAITO
  • Patent number: 11715997
    Abstract: 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: Grant
    Filed: July 10, 2020
    Date of Patent: August 1, 2023
    Assignee: HITACHI ASTEMO, LTD.
    Inventors: Takafumi Saito, Yasuo Saito, Daisuke Yamashita, Keijirou Okabe
  • Publication number: 20220255405
    Abstract: 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: Application
    Filed: July 10, 2020
    Publication date: August 11, 2022
    Applicant: HITACHI ASTEMO, LTD.
    Inventors: Takafumi SAITO, Yasuo SAITO, Daisuke YAMASHITA, Keijirou OKABE
  • Publication number: 20210058059
    Abstract: 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: Application
    Filed: November 5, 2020
    Publication date: February 25, 2021
    Inventors: Takayuki ISHIKAWA, Takashi MATSUMOTO, Kazumasa IKOMA, Takafumi SAITO
  • Publication number: 20190042063
    Abstract: 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: Application
    Filed: June 27, 2018
    Publication date: February 7, 2019
    Applicant: Yazaki Corporation
    Inventors: Yoshiyuki MIZUNO, Takafumi SAITO, Hideaki MORI
  • Publication number: 20190043684
    Abstract: 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: Application
    Filed: July 2, 2018
    Publication date: February 7, 2019
    Applicant: Yazaki Corporation
    Inventors: Yoshiyuki MIZUNO, Takafumi SAITO
  • Publication number: 20190006918
    Abstract: 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: Application
    Filed: December 2, 2016
    Publication date: January 3, 2019
    Inventors: Kenji KUNIYA, Yasuo SAITO, Takafumi SAITO, Keijirou OKABE
  • Publication number: 20180086289
    Abstract: 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: Application
    Filed: September 26, 2017
    Publication date: March 29, 2018
    Applicant: Yazaki Corporation
    Inventors: Yoshiyuki MIZUNO, Takafumi SAITO
  • Publication number: 20170123626
    Abstract: 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: Application
    Filed: November 1, 2016
    Publication date: May 4, 2017
    Inventors: Takafumi SAITO, Yoshiyuki MIZUNO
  • Publication number: 20160264070
    Abstract: 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: Application
    Filed: March 8, 2016
    Publication date: September 15, 2016
    Inventors: Shuhei Urakami, Takafumi Saito
  • Publication number: 20130328339
    Abstract: 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: Application
    Filed: June 10, 2013
    Publication date: December 12, 2013
    Inventors: Takehiro HAMADA, Masakazu IWATSUKI, Koichi HARUTA, Takafumi SAITO, Kengo OKAMOTO, Shinobu CHIBA
  • Publication number: 20130116148
    Abstract: 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: Application
    Filed: May 17, 2011
    Publication date: May 9, 2013
    Applicant: KEIO UNIVERSITY
    Inventors: Tomoyoshi Soga, Masahiro Sugimoto, Makoto Suematsu, Takafumi Saito, Sumio Kawata