Patents by Inventor Kenichi Yamazaki

Kenichi Yamazaki 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: 20240192558
    Abstract: To suppress a variation in characteristics of a transistor due to a released gas from an organic insulating film so that reliability of a display device is increased. The display device includes a transistor, an organic insulating film which is provided over the transistor in order to reduce unevenness due to the transistor, and a capacitor over the organic insulating film. An entire surface of the organic insulating film is not covered with components (a transparent conductive layer and an inorganic insulating film) of the capacitor, and a released gas from the organic insulating film can be released to the outside from exposed part of an upper surface of the organic insulating film.
    Type: Application
    Filed: December 4, 2023
    Publication date: June 13, 2024
    Inventors: Masatoshi YOKOYAMA, Shigeki KOMORI, Manabu SATO, Kenichi OKAZAKI, Shunpei YAMAZAKI
  • Publication number: 20240196712
    Abstract: A display apparatus with high display quality is provided. A highly reliable display apparatus is provided. A display apparatus with low power consumption is provided. A display apparatus with a high resolution is provided. A display apparatus with high contrast is provided. The display apparatus includes a plurality of pixels over a first insulating layer. Each of the plurality of pixels includes a first conductive layer provided along an opening portion of the first insulating layer, a second insulating layer over the first conductive layer, an EL layer over the first conductive layer and the second insulating layer, and a common electrode over the EL layer. The second insulating layer is over and in contact with the first conductive layer and placed below the EL layer. The first conductive layers of adjacent pixels are separated by a third insulating layer containing an inorganic material and a fourth insulating layer containing an organic material.
    Type: Application
    Filed: February 10, 2022
    Publication date: June 13, 2024
    Inventors: Shunpei YAMAZAKI, Kenichi OKAZAKI, Daiki NAKAMURA, Rai SATO
  • Publication number: 20240196657
    Abstract: A display apparatus with a wide viewing angle is provided. The display apparatus includes a first light-emitting element and a second light-emitting element over a substrate. The first light-emitting element includes a first pixel electrode, a first organic layer, and a common electrode, and the second light-emitting element includes a second pixel electrode, a second organic layer, and the common electrode. In a top view of the substrate, the first light-emitting element includes a first side and a second side that is shorter than the first side. An absolute value of a difference between a chromaticity difference between a chromaticity in a front direction and a chromaticity in a first direction and a chromaticity difference between the chromaticity in the front direction and a chromaticity in a second direction is less than or equal to 0.05.
    Type: Application
    Filed: April 13, 2022
    Publication date: June 13, 2024
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Daiki NAKAMURA, Ryo YAMAUCHI, Kenichi OKAZAKI, Shingo EGUCHI
  • Patent number: 12007712
    Abstract: Provided is an image forming apparatus in which, while image formation is prevented from being performed, scattered toner that has dropped from a filter and adhered to an outer peripheral surface of a developer carrying member is recovered by a cleaning unit through intermediation of an image bearing member. An absolute value of a perpendicular-magnetic-force gradient of a fixed magnet of the developer carrying member is 4.0 mT/° or less at a position where the fixed magnet faces a central portion of the filter in a rotation direction of a developing sleeve.
    Type: Grant
    Filed: June 9, 2023
    Date of Patent: June 11, 2024
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Junichi Nakagawa, Tamotsu Shimizu, Hiroshi Yamazaki, Kenichi Tamaki, Takuji Watanabe
  • Publication number: 20240188404
    Abstract: A display apparatus with a novel structure is provided. The display apparatus includes a display surface, a flexible non-rectangular substrate over which part of the display surface is formed, and a light-emitting device formed over the flexible substrate. The light-emitting device includes pixel regions formed in a matrix. The display surface has a convex or concave region when part of the flexible non-rectangular substrate is bent. A novel light-emitting apparatus, a novel display apparatus, a novel input/output apparatus, or a novel semiconductor apparatus can be achieved. The display apparatus enables the degree of design flexibility of a display apparatus to be increased and design of the display apparatus to be improved.
    Type: Application
    Filed: March 29, 2022
    Publication date: June 6, 2024
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Kenichi OKAZAKI, Koji KUSUNOKI, Hideaki KUWABARA, Yoshiaki OIKAWA
  • Publication number: 20240188378
    Abstract: A high-resolution or high-definition display device is provided.
    Type: Application
    Filed: January 11, 2022
    Publication date: June 6, 2024
    Inventors: Shunpei YAMAZAKI, Takayuki IKEDA, Kenichi OKAZAKI, Yasumasa YAMANE, Hajime KIMURA, Tatsuya ONUKI
  • Publication number: 20240186160
    Abstract: Manufacturing equipment in which processes from processing to sealing of an organic compound film can be successively performed is provided. A patterning process of a light-emitting device and a sealing process that is performed to prevent the surface and side surface of an organic layer from being exposed to the air can be performed successively, whereby a minute light-emitting device with high luminance and high reliability can be formed. Moreover, the manufacturing equipment can be incorporated in in-line manufacturing equipment where apparatuses are arranged in the order of processes for a light-emitting device, resulting in high throughput manufacturing.
    Type: Application
    Filed: March 28, 2022
    Publication date: June 6, 2024
    Inventors: Shunpei YAMAZAKI, Ryota HODO, Yasuhiro JINBO, Kenichi OKAZAKI
  • Patent number: 12002876
    Abstract: In a transistor including an oxide semiconductor, a change in electrical characteristics is suppressed and reliability is improved. The transistor includes an oxide semiconductor film over a first insulating film; a second insulating film over the oxide semiconductor film; a metal oxide film over the second insulating film; a gate electrode over the metal oxide film; and a third insulating film over the oxide semiconductor film and the gate electrode. The oxide semiconductor film includes a channel region overlapping with the gate electrode, a source region in contact with the third insulating film, and a drain region in contact with the third insulating film. The source region and the drain region contain one or more of hydrogen, boron, carbon, nitrogen, fluorine, phosphorus, sulfur, chlorine, titanium, and a rare gas.
    Type: Grant
    Filed: December 20, 2022
    Date of Patent: June 4, 2024
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Kenichi Okazaki, Junichi Koezuka, Tomonori Nakayama, Motoki Nakashima
  • Publication number: 20240176262
    Abstract: The developing device includes a development container, a developer carrier, and a toner trapping mechanism. The development container includes a first conveyance chamber and a second conveyance chamber placed in parallel juxtaposition and communicated with each other at their longitudinal both end portions, and the development container contains a toner-containing developer to be fed to an image carrier. The toner trapping mechanism includes a duct, an air inlet port, a trapping filter, and a fan. The duct is connected to the second conveyance chamber, and allows air present in the second conveyance chamber to flow therethrough. The development container has an air vent opened in the first conveyance chamber and communicated with outside of the development container.
    Type: Application
    Filed: November 22, 2023
    Publication date: May 30, 2024
    Applicant: KYOCERA Document Solutions Inc.
    Inventors: Tamotsu SHIMIZU, Kenichi TAMAKI, Hiroshi YAMAZAKI, Junichi NAKAGAWA, Takuji WATANABE
  • Publication number: 20240176289
    Abstract: A developing device includes a developer container and a developer carrying member. The developer carrying member includes a shaft, a sleeve that rotates while carrying toner on its outer circumferential face, and a magnet that extends along the axis of the developer carrying member. The developer container includes a duct, an intake port which opens above the developer carrying member and through which the inside of the developer container and the inside of the duct communicate with each other, and a first filter that covers the intake port. The edges of the first filter at one side and at the other side in the axial direction of the developer carrying member are both located within a range opposite the magnet as seen from the direction perpendicular to the axial direction.
    Type: Application
    Filed: November 22, 2023
    Publication date: May 30, 2024
    Applicant: KYOCERA Document Solutions Inc.
    Inventors: Kenichi TAMAKI, Tamotsu SHIMIZU, Hiroshi YAMAZAKI, Junichi NAKAGAWA, Takuji WATANABE
  • Publication number: 20240176270
    Abstract: The developing device includes a development container, a developer carrier, and a toner trapping mechanism. The development container includes a first conveyance chamber and a second conveyance chamber placed in parallel juxtaposition and communicated with each other at their longitudinal both end portions, and the development container contains a toner-containing developer to be fed to an image carrier. The toner trapping mechanism includes a duct, an air inlet port, an air exhaust port, a filter, and a fan. The air inlet port is placed at a connecting portion between the duct and the second conveyance chamber, and opened along the longitudinal direction of the second conveyance chamber so as to allow air present in the second conveyance chamber to flow into the duct. The air exhaust port is placed downstream of the air inlet port as viewed in a developer conveyance direction of the second conveyance chamber.
    Type: Application
    Filed: November 27, 2023
    Publication date: May 30, 2024
    Applicant: KYOCERA Document Solutions Inc.
    Inventors: Tamotsu SHIMIZU, Hiroshi YAMAZAKI, Kenichi TAMAKI, Junichi NAKAGAWA, Takuji WATANABE
  • Publication number: 20240176271
    Abstract: The image forming apparatus includes a developing part and a vibration generating part. The vibration generating part vibrates a filter provided in the developing part. The developing part includes a development container, a developer carrier, and a toner trapping mechanism. The development container includes a first conveyance chamber and a second conveyance chamber placed in parallel juxtaposition. The toner trapping mechanism has a duct, an air inlet port, an air exhaust port, and a filter. The air inlet port is opened along the longitudinal direction of the second conveyance chamber so as to allow air present in the second conveyance chamber to flow into the duct. The vibration generating part is placed outside the developing part so as to be opposed to the development container and positioned on a downstream side in a developer conveyance direction of the second conveyance chamber.
    Type: Application
    Filed: November 28, 2023
    Publication date: May 30, 2024
    Applicant: KYOCERA Document Solutions Inc.
    Inventors: Tamotsu SHIMIZU, Hiroshi YAMAZAKI, Kenichi TAMAKI, Junichi NAKAGAWA, Takuji WATANABE
  • Publication number: 20240179935
    Abstract: A display device with high display quality and high reliability is provided. The display device includes a first light-emitting element, a second light-emitting element positioned to be adjacent to the first light-emitting element, a first protective layer, a second protective layer, and an insulating layer. The first light-emitting element includes a first pixel electrode, a first EL layer, and a common electrode. The second light-emitting element includes a second pixel electrode, a second EL layer, and the common electrode. The first EL layer is provided over the first pixel electrode, and the second EL layer is provided over the second pixel electrode. The first protective layer includes a region overlapping with a side surface of the first pixel electrode, a side surface of the second pixel electrode, a side surface of the first EL layer, and a side surface of the second EL layer.
    Type: Application
    Filed: March 30, 2022
    Publication date: May 30, 2024
    Inventors: Shunpei YAMAZAKI, Ryota HODO, Yasuhiro JINBO, Kenichi OKAZAKI
  • Publication number: 20240169914
    Abstract: A display device that has high display quality is provided. A highly reliable display device is provided. A display device with low power consumption is provided. A light-emitting element is electrically connected to one of a source and a drain of a first transistor. The other of the source and the drain of the first transistor is electrically connected to one of a source and a drain of a second transistor. A gate electrode of the second transistor is electrically connected to one of a source and a drain of a third transistor. A semiconductor layer of the second transistor and a semiconductor layer of the third transistor each include indium, zinc and a third metal. The ratio of the number of indium atoms to the total number of the indium atoms, zinc atoms, and atoms of the third metal in the semiconductor layer of the second transistor is higher than or equal to 30 atomic % and lower than or equal to 100 atomic %.
    Type: Application
    Filed: April 11, 2022
    Publication date: May 23, 2024
    Inventors: Shunpei YAMAZAKI, Kenichi OKAZAKI, Koji KUSUNOKI
  • Publication number: 20240164175
    Abstract: A display apparatus having an image capturing function is provided. A display apparatus or an imaging device with a high aperture ratio is provided. The display apparatus includes a first light-emitting element and a light-receiving element. The first light-emitting element is formed by stacking a first pixel electrode, a first organic layer, and a common electrode in this order. The light-receiving element is formed by stacking a second pixel electrode, a second organic layer, and the common electrode in this order. The first organic layer includes a first light-emitting layer, and the second organic layer includes a photoelectric conversion layer. A first layer and a second layer are included in a region between the first light-emitting element and the light-receiving element. The first layer overlaps with the second organic layer and contains the same material as the first organic layer. The second layer overlaps with the first organic layer and contains the same material as the second organic layer.
    Type: Application
    Filed: April 8, 2022
    Publication date: May 16, 2024
    Inventors: Shunpei YAMAZAKI, Kenichi OKAZAKI, Daisuke KUBOTA
  • Publication number: 20240164168
    Abstract: A higher-definition or higher-resolution display apparatus is provided. The display apparatus includes a first light-emitting device, a second light-emitting device, a first insulating layer, a first coloring layer, and a second coloring layer. The first light-emitting device includes a first pixel electrode, a first light-emitting layer over the first pixel electrode, and a common electrode over the first light-emitting layer. The second light-emitting device includes a second pixel electrode, a second light-emitting layer over the second pixel electrode, and the common electrode over the second light-emitting layer. The first insulating layer covers side surfaces of the first pixel electrode, the second pixel electrode, the first light-emitting layer, and the second light-emitting layer. The first coloring layer is placed to overlap with the first light-emitting device. The second coloring layer is placed to overlap with the second light-emitting device.
    Type: Application
    Filed: February 25, 2022
    Publication date: May 16, 2024
    Inventors: Kenichi OKAZAKI, Daiki NAKAMURA, Rai SATO, Shunpei YAMAZAKI
  • Publication number: 20240155870
    Abstract: Manufacturing equipment in which processes from processing to sealing of an organic compound film can be successively performed is provided. A patterning process of a light-emitting device and a sealing process that is performed to prevent the surface and side surface of an organic layer from being exposed to the air can be performed successively, whereby a minute light-emitting device with high luminance and high reliability can be formed. Moreover, the manufacturing equipment can be incorporated in in-line manufacturing equipment where apparatuses are arranged in the order of processes for a light-emitting device, resulting in high throughput manufacturing.
    Type: Application
    Filed: March 11, 2022
    Publication date: May 9, 2024
    Inventors: Shunpei YAMAZAKI, Ryota HODO, Yasuhiro JINBO, Kenichi OKAZAKI
  • Publication number: 20240152012
    Abstract: The display device includes a first substrate provided with a driver circuit region that is located outside and adjacent to a pixel region and includes at least one second transistor which supplies a signal to the first transistor in each of the pixels in the pixel region, a second substrate facing the first substrate, a liquid crystal layer between the first substrate and the second substrate, a first interlayer insulating film including an inorganic insulating material over the first transistor and the second transistor, a second interlayer insulating film including an organic insulating material over the first interlayer insulating film, and a third interlayer insulating film including an inorganic insulating material over the second interlayer insulating film. The third interlayer insulating film is provided in part of an upper region of the pixel region, and has an edge portion on an inner side than the driver circuit region.
    Type: Application
    Filed: January 18, 2024
    Publication date: May 9, 2024
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Yasuharu HOSAKA, Yukinori SHIMA, Kenichi OKAZAKI, Shunpei YAMAZAKI
  • Publication number: 20240154041
    Abstract: A change in electrical characteristics in a semiconductor device including an oxide semiconductor film is inhibited, and the reliability is improved. The semiconductor device includes a gate electrode, a first insulating film over the gate electrode, an oxide semiconductor film over the first insulating film, a source electrode electrically connected to the oxide semiconductor film, a drain electrode electrically connected to the oxide semiconductor film, a second insulating film over the oxide semiconductor film, the source electrode, and the drain electrode, a first metal oxide film over the second insulating film, and a second metal oxide film over the first metal oxide film. The first metal oxide film contains at least one metal element that is the same as a metal element contained in the oxide semiconductor film. The second metal oxide film includes a region where the second metal oxide film and the first metal oxide film are mixed.
    Type: Application
    Filed: December 18, 2023
    Publication date: May 9, 2024
    Inventors: Shunpei YAMAZAKI, Junichi KOEZUKA, Kenichi OKAZAKI, Masami JINTYOU
  • Patent number: 11977351
    Abstract: An image forming apparatus includes a development device, and a control unit that controls the development device. The development device includes a toner collection mechanism having a duct, a filter, and an exhaust fan. The duct is connected to a conveyance chamber of the development container and allows air in the conveyance chamber to flow through. The filter is disposed at a connecting part between the duct and the conveyance chamber, and collects toner flowing into the duct from the conveyance chamber. The exhaust fan makes the air in the conveyance chamber flow to the outside via the duct. The control unit changes rotational frequency or operation frequency of the exhaust fan based on current detected by a current detection unit at non-image forming time.
    Type: Grant
    Filed: June 8, 2023
    Date of Patent: May 7, 2024
    Assignee: KYOCERA DOCUMENT SOLUTIONS INC.
    Inventors: Takuji Watanabe, Junichi Nakagawa, Kenichi Tamaki, Hiroshi Yamazaki, Tamotsu Shimizu