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).
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Publication number: 20240244732Abstract: Provided is a novel light adjustment program that can make a human feel at ease. Provided is the light adjustment program that includes the steps of obtaining basic data having 1/f fluctuation characteristics; generating first smoothed data and second smoothed data by performing moving average processing with different periods on the basic data having 1/f fluctuation characteristics; generating light adjustment data by subjecting the first smoothed data and the second smoothed data to arithmetic processing; and changing luminance of a light-emitting device in time series in accordance with the light adjustment data.Type: ApplicationFiled: May 11, 2022Publication date: July 18, 2024Inventors: Takashi SHINGU, Tsunenori SUZUKI, Satoshi SEO, Haruki KATAGIRI, Noboru INOUE, Kazuhiko FUJITA, Toshiki SASAKI, Hideko YOSHIZUMI
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Patent number: 12019483Abstract: 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: GrantFiled: December 24, 2020Date of Patent: June 25, 2024Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Taiki Nonaka, Kazuhiko Fujita, Akio Endo, Yuta Ishikawa
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Publication number: 20240187720Abstract: 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: ApplicationFiled: December 12, 2023Publication date: June 6, 2024Applicant: Semiconductor Energy Laboratory Co., Ltd.Inventors: Yoshiharu HIRAKATA, Nobuharu OHSAWA, Hisao IKEDA, Kazuhiko FUJITA, Akihiro KAITA
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Publication number: 20240155933Abstract: 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: ApplicationFiled: November 13, 2023Publication date: May 9, 2024Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.Inventors: Daiki NAKAMURA, Kazuhiko FUJITA
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Publication number: 20240143035Abstract: 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: ApplicationFiled: January 11, 2024Publication date: May 2, 2024Applicant: Semiconductor Energy Laboratory Co., Ltd.Inventors: Daiki NAKAMURA, Kazuhiko FUJITA
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Publication number: 20240121497Abstract: 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: ApplicationFiled: December 1, 2023Publication date: April 11, 2024Applicant: Semiconductor Energy Laboratory Co., Ltd.Inventors: Yoshiharu HIRAKATA, Nobuharu OHSAWA, Hisao IKEDA, Kazuhiko FUJITA, Akihiro KAITA
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Publication number: 20240096243Abstract: 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: ApplicationFiled: November 21, 2023Publication date: March 21, 2024Inventors: Shingo EGUCHI, Taiki NONAKA, Daiki NAKAMURA, Nozomu SUGISAWA, Kazuhiko FUJITA, Shunpei YAMAZAKI
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Patent number: 11928988Abstract: 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: GrantFiled: June 2, 2022Date of Patent: March 12, 2024Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Yosuke Tsukamoto, Daiki Nakamura, Daisuke Furumatsu, Kazuhiko Fujita, Kyoichi Mukao, Junya Maruyama
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Publication number: 20240060498Abstract: 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: ApplicationFiled: February 18, 2022Publication date: February 22, 2024Inventor: Kazuhiko FUJITA
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Patent number: 11907017Abstract: 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: GrantFiled: August 21, 2019Date of Patent: February 20, 2024Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Daiki Nakamura, Kazuhiko Fujita
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Patent number: 11830391Abstract: 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: GrantFiled: December 6, 2019Date of Patent: November 28, 2023Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shingo Eguchi, Taiki Nonaka, Daiki Nakamura, Nozomu Sugisawa, Kazuhiko Fujita, Shunpei Yamazaki
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Publication number: 20230324962Abstract: 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: ApplicationFiled: December 24, 2020Publication date: October 12, 2023Inventors: Taiki NONAKA, Kazuhiko FUJITA, Akio ENDO, Yuta ISHIKAWA
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Publication number: 20230269987Abstract: 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: ApplicationFiled: April 25, 2023Publication date: August 24, 2023Applicant: Semiconductor Energy Laboratory Co., Ltd.Inventors: Daiki Nakamura, Shingo EGUCHI, Tomoya AOYAMA, Nozomu SUGISAWA, Junya MARUYAMA, Kazuhiko FUJITA, Masataka SATO, Susumu KAWASHIMA
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Patent number: 11672152Abstract: 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: GrantFiled: November 19, 2018Date of Patent: June 6, 2023Inventors: Daiki Nakamura, Shingo Eguchi, Tomoya Aoyama, Nozomu Sugisawa, Junya Maruyama, Kazuhiko Fujita, Masataka Sato, Susumu Kawashima
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Publication number: 20230004207Abstract: 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: ApplicationFiled: November 25, 2020Publication date: January 5, 2023Inventors: Haruki KATAGIRI, Kyoichi MUKAO, Taiki NONAKA, Kazuhiko FUJITA, Yuta ISHIKAWA
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Publication number: 20220301461Abstract: 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: ApplicationFiled: June 2, 2022Publication date: September 22, 2022Inventors: Yosuke TSUKAMOTO, Daiki NAKAMURA, Daisuke FURUMATSU, Kazuhiko FUJITA, Kyoichi MUKAO, Junya MARUYAMA
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Patent number: 11380218Abstract: 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: GrantFiled: February 22, 2018Date of Patent: July 5, 2022Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.Inventors: Yosuke Tsukamoto, Daiki Nakamura, Daisuke Furumatsu, Kazuhiko Fujita, Kyoichi Mukao, Junya Maruyama
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Publication number: 20220051594Abstract: 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: ApplicationFiled: December 6, 2019Publication date: February 17, 2022Inventors: Shingo EGUCHI, Taiki NONAKA, Daiki NAKAMURA, Nozomu SUGISAWA, Kazuhiko FUJITA, Shunpei YAMAZAKI
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Patent number: 11221015Abstract: 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: GrantFiled: February 20, 2019Date of Patent: January 11, 2022Assignee: MINEBEA MITSUMI INC.Inventor: Kazuhiko Fujita
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Patent number: D954703Type: GrantFiled: August 30, 2019Date of Patent: June 14, 2022Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Yosuke Tsukamoto, Shunpei Yamazaki, Kazuhiko Fujita, Akio Endo