Patents by Inventor Kazuhiko Fujita

Kazuhiko Fujita 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).

  • Publication number: 20240187720
    Abstract: A small light-emitting device is provided. A light-emitting device which is less likely to produce a shadow is provided. A structure including a switching circuit for supplying a pulsed constant current and a light-emitting panel supplied with the pulsed constant current has been conceived.
    Type: Application
    Filed: December 12, 2023
    Publication date: June 6, 2024
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yoshiharu HIRAKATA, Nobuharu OHSAWA, Hisao IKEDA, Kazuhiko FUJITA, Akihiro KAITA
  • Publication number: 20240155933
    Abstract: When a base film used in a flexible display panel is bonded to a resin member for fixing the base film that is curved, the base film has creases by an environmental change such as temperature due to difference in linear expansion coefficient before and after a thermal shock. A buffer plate that is thin enough to be bent is provided between the base film used in a flexible display panel and the resin member. With the use of heat dissipation effect and heat equalization effect of the buffer plate, a structure around the panel capable of resisting the environmental change can be provided.
    Type: Application
    Filed: November 13, 2023
    Publication date: May 9, 2024
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Daiki NAKAMURA, Kazuhiko FUJITA
  • Publication number: 20240143035
    Abstract: Damage to a flexible display can be prevented. A display device having improved mechanical strength can be provided. A display device (10) includes a display panel (11) and a protection cover (12). The display panel (11) includes a first portion having flexibility. The protection cover (12) has a light-transmitting property and flexibility and is provided to overlap with a display surface side of the display panel (11). The display device (10) has a function of being reversibly changed in shape to a first mode in which the display panel (11) and the protection cover (12) are each substantially flat and a second mode in which the first portion of the display panel (11) is curved such that the display surface side becomes a concave surface and part of the protection cover (12) is curved in the same direction as the first portion. In the second mode, there is a gap between the first portion and the protection cover.
    Type: Application
    Filed: January 11, 2024
    Publication date: May 2, 2024
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Daiki NAKAMURA, Kazuhiko FUJITA
  • Publication number: 20240121497
    Abstract: A small light-emitting device is provided. A light-emitting device which is less likely to produce a shadow is provided. A structure including a switching circuit for supplying a pulsed constant current and a light-emitting panel supplied with the pulsed constant current has been conceived.
    Type: Application
    Filed: December 1, 2023
    Publication date: April 11, 2024
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yoshiharu HIRAKATA, Nobuharu OHSAWA, Hisao IKEDA, Kazuhiko FUJITA, Akihiro KAITA
  • Publication number: 20240096243
    Abstract: A novel display panel that is highly convenient, useful, or reliable is provided. The display panel includes a display region, a first support, and a second support, the display region includes a first region, a second region, and a third region, the first region and the second region each have a belt-like shape extending in one direction, and the third region is sandwiched between the first region and the second region. The first support overlaps with the first region and is less likely to be warped than the third region, and the second support overlaps with the second region and is less likely to be warped than the third region. The second support can pivot on an axis extending in the one direction with respect to the first support.
    Type: Application
    Filed: November 21, 2023
    Publication date: March 21, 2024
    Inventors: Shingo EGUCHI, Taiki NONAKA, Daiki NAKAMURA, Nozomu SUGISAWA, Kazuhiko FUJITA, Shunpei YAMAZAKI
  • Publication number: 20240088051
    Abstract: A method for manufacturing a semiconductor device is disclosed. The method for manufacturing a semiconductor device includes preparing a base material, preparing a plurality of semiconductor elements each having a connection terminal, preparing a wiring board provided with a first wiring, arranging the plurality of semiconductor elements on the base material, covering the plurality of semiconductor elements on the base material with an insulating material, arranging the wiring board on at least one of the plurality of semiconductor elements so that the first wiring is connected to at least some of the connection terminals of the plurality of semiconductor elements covered with the insulating material, and forming a second wiring around the first wiring. The first wiring has finer wiring than the second wiring.
    Type: Application
    Filed: January 12, 2022
    Publication date: March 14, 2024
    Inventors: Kazuyuki MITSUKURA, Shunsuke OTAKE, Hiroaki FUJITA, Shinji SHIMAOKA, Takashi MASUKO, Kazuhiko KURAFUCHI
  • Patent number: 11928988
    Abstract: A plurality of display panels having a curved surface are placed in a limited space. Two, or three or more display panels are combined to form one display region having a T-shaped outer edge as one screen, and a driver can curve part of the display panel as appropriate so that the driver can see the screen easily. A first display panel or a second display panel has flexibility and includes a position adjustment function of curving an end portion. That is, by curving part of the display panel, the user can see the display panel easily. The in-car design can also be varied.
    Type: Grant
    Filed: June 2, 2022
    Date of Patent: March 12, 2024
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yosuke Tsukamoto, Daiki Nakamura, Daisuke Furumatsu, Kazuhiko Fujita, Kyoichi Mukao, Junya Maruyama
  • Publication number: 20240060498
    Abstract: The centrifugal blower includes an impeller, a motor for rotating the impeller, and a circuit board for driving and controlling the motor, the impeller, the motor, and the circuit board being accommodated in the centrifugal blower, at the inner side of a lower casing. The motor is arranged at a first end portion side in the shaft direction of the circuit board, an end cap is provided at the second end portion side in the shaft direction of the circuit board. The end cap is provided with an inner annular portion extending in the shaft direction and a pocket portion protruding inward in a radial direction from an inner circumferential surface of the inner annular portion. The motor is a three-phase brushless motor, and includes a common line coupling portion with three-phase coils wound around in a star connection. The common line coupling portion protrudes from the circuit board toward the second end portion side in the shaft direction to be accommodated in the pocket portion of the end cap.
    Type: Application
    Filed: February 18, 2022
    Publication date: February 22, 2024
    Inventor: Kazuhiko FUJITA
  • Patent number: 11907017
    Abstract: Damage to a flexible display can be prevented. A display device having improved mechanical strength can be provided. A display device (10) includes a display panel (11) and a protection cover (12). The display panel (11) includes a first portion having flexibility. The protection cover (12) has a light-transmitting property and flexibility and is provided to overlap with a display surface side of the display panel (11). The display device (10) has a function of being reversibly changed in shape to a first mode in which the display panel (11) and the protection cover (12) are each substantially flat and a second mode in which the first portion of the display panel (11) is curved such that the display surface side becomes a concave surface and part of the protection cover (12) is curved in the same direction as the first portion. In the second mode, there is a gap between the first portion and the protection cover.
    Type: Grant
    Filed: August 21, 2019
    Date of Patent: February 20, 2024
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Daiki Nakamura, Kazuhiko Fujita
  • Patent number: 11830391
    Abstract: A novel display panel that is highly convenient, useful, or reliable is provided. The display panel includes a display region, a first support, and a second support, the display region includes a first region, a second region, and a third region, the first region and the second region each have a belt-like shape extending in one direction, and the third region is sandwiched between the first region and the second region. The first support overlaps with the first region and is less likely to be warped than the third region, and the second support overlaps with the second region and is less likely to be warped than the third region. The second support can pivot on an axis extending in the one direction with respect to the first support.
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: November 28, 2023
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shingo Eguchi, Taiki Nonaka, Daiki Nakamura, Nozomu Sugisawa, Kazuhiko Fujita, Shunpei Yamazaki
  • Publication number: 20230324962
    Abstract: An angle adjustment device capable of being kept at a desired angle is provided. The angle adjustment device can fix and keep the relative positions of the first base component and the second base component, and a support with a combination of the angle adjustment device and components such as a flat plate can keep the entire body in a shape opened on a plane, a folded shape, a shape kept at a desired angle, or the like. In addition, the angle adjustment device can make a bending movement in one direction, which prevents bending in a reverse direction. Therefore, it is possible to prevent an accidental bending movement of an apparatus including the angle adjustment device to prevent breakage or the like of the apparatus.
    Type: Application
    Filed: December 24, 2020
    Publication date: October 12, 2023
    Inventors: Taiki NONAKA, Kazuhiko FUJITA, Akio ENDO, Yuta ISHIKAWA
  • Publication number: 20230269987
    Abstract: Display unevenness in a display panel is suppressed. A display panel with a high aperture ratio of a pixel is provided. The display panel includes a first pixel electrode, a second pixel electrode, a third pixel electrode, a first light-emitting layer, a second light-emitting layer, a third light-emitting layer, a first common layer, a second common layer, a common electrode, and an auxiliary wiring. The first common layer is positioned over the first pixel electrode and the second pixel electrode. The first common layer has a portion overlapping with the first light-emitting layer and a portion overlapping with the second light-emitting layer. The second common layer is positioned over the third pixel electrode. The second common layer has a portion overlapping with the third light-emitting layer.
    Type: Application
    Filed: April 25, 2023
    Publication date: August 24, 2023
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Daiki Nakamura, Shingo EGUCHI, Tomoya AOYAMA, Nozomu SUGISAWA, Junya MARUYAMA, Kazuhiko FUJITA, Masataka SATO, Susumu KAWASHIMA
  • Patent number: 11672152
    Abstract: Display unevenness in a display panel is suppressed. A display panel with a high aperture ratio of a pixel is provided. The display panel includes a first pixel electrode, a second pixel electrode, a third pixel electrode, a first light-emitting layer, a second light-emitting layer, a third light-emitting layer, a first common layer, a second common layer, a common electrode, and an auxiliary wiring. The first common layer is positioned over the first pixel electrode and the second pixel electrode. The first common layer has a portion overlapping with the first light-emitting layer and a portion overlapping with the second light-emitting layer. The second common layer is positioned over the third pixel electrode. The second common layer has a portion overlapping with the third light-emitting layer.
    Type: Grant
    Filed: November 19, 2018
    Date of Patent: June 6, 2023
    Inventors: Daiki Nakamura, Shingo Eguchi, Tomoya Aoyama, Nozomu Sugisawa, Junya Maruyama, Kazuhiko Fujita, Masataka Sato, Susumu Kawashima
  • Publication number: 20230004207
    Abstract: The power consumption of a control device or a data processing system is reduced. Safety is enhanced. An electronic device is operated in a simple way. A control device includes an arithmetic circuit, an input unit, and a power management unit. The input unit includes a sensor element. The power management unit has a function of controlling supply and shutdown of power to the arithmetic circuit. The power management unit has a function of supplying power to the arithmetic circuit in response to a detection signal output from the sensor element. The sensor element includes one or more selected from an acceleration sensor, an angular velocity sensor, and a magnetic sensor. The arithmetic circuit includes a register. The register includes a first circuit and a second circuit.
    Type: Application
    Filed: November 25, 2020
    Publication date: January 5, 2023
    Inventors: Haruki KATAGIRI, Kyoichi MUKAO, Taiki NONAKA, Kazuhiko FUJITA, Yuta ISHIKAWA
  • Publication number: 20220301461
    Abstract: A plurality of display panels having a curved surface are placed in a limited space. Two, or three or more display panels are combined to form one display region having a T-shaped outer edge as one screen, and a driver can curve part of the display panel as appropriate so that the driver can see the screen easily. A first display panel or a second display panel has flexibility and includes a position adjustment function of curving an end portion. That is, by curving part of the display panel, the user can see the display panel easily. The in-car design can also be varied.
    Type: Application
    Filed: June 2, 2022
    Publication date: September 22, 2022
    Inventors: Yosuke TSUKAMOTO, Daiki NAKAMURA, Daisuke FURUMATSU, Kazuhiko FUJITA, Kyoichi MUKAO, Junya MARUYAMA
  • Patent number: 11380218
    Abstract: A plurality of display panels having a curved surface are placed in a limited space. Two, or three or more display panels are combined to form one display region having a T-shaped outer edge as one screen, and a driver can curve part of the display panel as appropriate so that the driver can see the screen easily. A first display panel or a second display panel has flexibility and includes a position adjustment function of curving an end portion. That is, by curving part of the display panel, the user can see the display panel easily. The in-car design can also be varied.
    Type: Grant
    Filed: February 22, 2018
    Date of Patent: July 5, 2022
    Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Yosuke Tsukamoto, Daiki Nakamura, Daisuke Furumatsu, Kazuhiko Fujita, Kyoichi Mukao, Junya Maruyama
  • Publication number: 20220051594
    Abstract: A novel display panel that is highly convenient, useful, or reliable is provided. The display panel includes a display region, a first support, and a second support, the display region includes a first region, a second region, and a third region, the first region and the second region each have a belt-like shape extending in one direction, and the third region is sandwiched between the first region and the second region. The first support overlaps with the first region and is less likely to be warped than the third region, and the second support overlaps with the second region and is less likely to be warped than the third region. The second support can pivot on an axis extending in the one direction with respect to the first support.
    Type: Application
    Filed: December 6, 2019
    Publication date: February 17, 2022
    Inventors: Shingo EGUCHI, Taiki NONAKA, Daiki NAKAMURA, Nozomu SUGISAWA, Kazuhiko FUJITA, Shunpei YAMAZAKI
  • Patent number: 11221015
    Abstract: It is possible to provide a blower device which can be attached to a target having various kinds of shapes at low cost. A blower device 1 including a blower casing 2 having a structure in which an impeller 7 is housed in a primary casing 5 and a secondary casing 6, and then the casings are assembled together, and fixing member 3 which is attached on an outer circumference of the blower casing 2 and which is to fix the blower device 1 to an attachment target, in which the fixing member 3 can be selectively attached among the attachment positions on the blower casing 2.
    Type: Grant
    Filed: February 20, 2019
    Date of Patent: January 11, 2022
    Assignee: MINEBEA MITSUMI INC.
    Inventor: Kazuhiko Fujita
  • Patent number: 11193501
    Abstract: A blower device has a fixing position which is easily changed and the increase in cost is greatly suppressed. A blower device in which a flange having a fixing attaching foot is attached to rails formed on an outer circumferential surface of a casing, and a retaining block is attached to the flange to secure the flange to the casing, the retaining block includes a first block, a second block, and a connecting portion having smaller width and connecting the first block and the second block, the first block and the second block each include a retaining leg portion and a latching leg portion, and a projecting portion is formed on a side surface of the retaining leg portion and ribs are formed at both sides of the projecting portion.
    Type: Grant
    Filed: May 15, 2020
    Date of Patent: December 7, 2021
    Assignees: MINEBEA MITSUMI INC., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kazuhiko Fujita, Shuhei Kimpara, Seiya Yoshitome, Hideaki Goda, Makoto Hidaka
  • Patent number: D954703
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: June 14, 2022
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yosuke Tsukamoto, Shunpei Yamazaki, Kazuhiko Fujita, Akio Endo