Patents by Inventor Kazuyuki Maeda

Kazuyuki Maeda 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: 8625063
    Abstract: A display capable of obtaining high contrast and an electronic unit including the display are provided. The display includes: a liquid crystal display panel including a liquid crystal layer and a light reflective layer; and an optical laminate disposed on the liquid crystal display panel, in which the optical laminate includes a first retardation layer, a light diffuser layer, a second retardation layer, and a polarization layer in order from a side closer to the liquid crystal display panel, the first retardation layer is a negative C-plate, and the second retardation layer is a ?/4 plate or a combination of a ?/4 plate and a ?/2 plate arranged in order from a side closer to the liquid crystal display panel.
    Type: Grant
    Filed: February 29, 2012
    Date of Patent: January 7, 2014
    Assignee: Japan Display West Inc.
    Inventors: Masaya Tamaki, Kazuyuki Maeda, Masaaki Kabe
  • Patent number: 8557333
    Abstract: The invention is directed to an electroluminescent display device in which a first planarization insulating film need not be used so that a manufacturing cost reduces, and a display defect caused by a cut in an organic EL layer or moisture absorption at a step portion is prevented. An R color filter layer, a G color filter layer, and a B color filter layer are so formed that end portions of the adjacent R, G, and B color filter layers overlap each other. The R color filter layer, the G color filter layer, and the B color filter layer serve as a first planarization insulating film. For planarization, the end portions of the color filter layers overlap each other. For reducing a step height of an overlapping portion, the end portions of the color filters are formed in a tapered shape.
    Type: Grant
    Filed: April 29, 2009
    Date of Patent: October 15, 2013
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Ryuji Nishikawa, Kazuyuki Maeda
  • Patent number: 8537316
    Abstract: A vertical alignment liquid crystal layer is sealed between a first substrate having a first electrode and a second substrate having a second electrode, each pixel region has a reflective region and a transmissive region, and a gap adjusting section is provided on one of sides of the first substrate and the second substrate which sets a thickness (gap) d of the liquid crystal layer which controls a phase difference of incident light to the liquid crystal layer so that a gap dr in the reflective region is smaller than a gap dt in the transmissive region. An alignment controller which divides alignment of the liquid crystal within a pixel region is provided in the pixel region on at least one of the sides of the first substrate and the second substrate. It is also possible to optimize by changing the gap in red, green, and blue.
    Type: Grant
    Filed: November 28, 2012
    Date of Patent: September 17, 2013
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Norio Koma, Kazuyuki Maeda, Masayuki Kametani, Kazuhiro Inoue, Masaaki Aota
  • Publication number: 20130088676
    Abstract: A vertical alignment liquid crystal layer is sealed between a first substrate having a first electrode and a second substrate having a second electrode, each pixel region has a reflective region and a transmissive region, and a gap adjusting section is provided on one of sides of the first substrate and the second substrate which sets a thickness (gap) d of the liquid crystal layer which controls a phase difference of incident light to the liquid crystal layer so that a gap dr in the reflective region is smaller than a gap dt in the transmissive region. An alignment controller which divides alignment of the liquid crystal within a pixel region is provided in the pixel region on at least one of the sides of the first substrate and the second substrate. It is also possible to optimize by changing the gap in red, green, and blue.
    Type: Application
    Filed: November 28, 2012
    Publication date: April 11, 2013
    Inventors: Norio KOMA, Kazuyuki MAEDA, Masayuki KAMETANI, Kazuhiro INOUE, Masaaki AOTA
  • Patent number: 8345198
    Abstract: A vertical alignment liquid crystal layer is sealed between a first substrate having a first electrode and a second substrate having a second electrode, each pixel region has a reflective region and a transmissive region, and a gap adjusting section is provided on one of sides of the first substrate and the second substrate which sets a thickness (gap) d of the liquid crystal layer which controls a phase difference of incident light to the liquid crystal layer so that a gap dr in the reflective region is smaller than a gap dt in the transmissive region. An alignment controller which divides alignment of the liquid crystal within a pixel region is provided in the pixel region on at least one of the sides of the first substrate and the second substrate. It is also possible to optimize by changing the gap in red, green, and blue.
    Type: Grant
    Filed: November 23, 2011
    Date of Patent: January 1, 2013
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Norio Koma, Kazuyuki Maeda, Masayuki Kametani, Kazuhiro Inoue, Masaaki Aota
  • Publication number: 20120313906
    Abstract: A semi-transmissive display apparatus includes: a reflective electrode provided for each pixel, wherein the semi-transmissive display apparatus performs reflective display operation by using the reflective electrodes and transmissive display operation by using spaces between the reflective electrodes of the pixels.
    Type: Application
    Filed: June 2, 2012
    Publication date: December 13, 2012
    Applicant: SONY CORPORATION
    Inventors: Masaya Tamaki, Kazuyuki Maeda
  • Patent number: 8303884
    Abstract: A soft magnetic material includes a plurality of composite magnetic particles (40) each including a metal magnetic particle (10) and an insulation coating (20) covering the surface of the metal magnetic particle (10), wherein the insulation coating (20) contains Si (silicon), and 80% or more of Si contained in the insulation coating constitutes a silsesquioxane skeleton. Therefore, it is possible to effectively decrease a hysteresis loss while suppressing an increase in eddy-current loss.
    Type: Grant
    Filed: October 9, 2009
    Date of Patent: November 6, 2012
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Toru Maeda, Kazuyuki Maeda, Yasushi Mochida, Koji Mimura
  • Publication number: 20120249931
    Abstract: A display capable of obtaining high contrast and an electronic unit including the display are provided. The display includes: a liquid crystal display panel including a liquid crystal layer and a light reflective layer; and an optical laminate disposed on the liquid crystal display panel, in which the optical laminate includes a first retardation layer, a light diffuser layer, a second retardation layer, and a polarization layer in order from a side closer to the liquid crystal display panel, the first retardation layer is a negative C-plate, and the second retardation layer is a ?/4 plate or a combination of a ?/4 plate and a ?/2 plate arranged in order from a side closer to the liquid crystal display panel.
    Type: Application
    Filed: February 29, 2012
    Publication date: October 4, 2012
    Applicant: SONY CORPORATION
    Inventors: Masaya TAMAKI, Kazuyuki MAEDA, Masaaki KABE
  • Publication number: 20120199284
    Abstract: A substrate may include a plurality of wirings arranged side by side to extend in a predetermined direction, and a protective insulating layer formed between adjoining pixels and formed as a rib protruding from the substrate. An emissive layer formation method for transferring, to the substrate, an emissive layer provided on a transfer element may include pressing the emissive layer on the transfer element onto the protective insulating layer and affixing it through pressure to a top surface of the rib. Thereby the emissive layer transferred to the substrate is confined to an area which is surrounded by the rib of the protective insulating layer, the substrate and the transfer element, and diffusion of the emissive layer is controlled by the area, thereby transferring the emissive layer in the area.
    Type: Application
    Filed: February 27, 2012
    Publication date: August 9, 2012
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Hideki Matsuoka, Kazuyuki Maeda
  • Patent number: 8192579
    Abstract: After a gate line (11), a TFT (1), and a data line (30) are formed, a riblike protective insulation layer (32) which coats the data line is formed on a substrate (10) serving as the element substrate of an active matrix type color liquid crystal display device or an organic EL display device. A color filter layer (42) on a transfer film (40) is press-bonded on this substrate (10) with a roller (46) moving in the extensional direction (columnar direction) of the protecting insulation layer (32). The advancement of the transfer of a color filter in the columnar direction makes it possible to bring the substrate and the color filter in contact without gaps while expelling the gas out of a pixel space in the advancement direction. During the step of forming a color filter, the protecting insulation layer (32) protects the data line (30) from the treatment liquid etc. An organic light emitting element layer is arranged in the pixel space to form an organic EL display device.
    Type: Grant
    Filed: March 10, 2008
    Date of Patent: June 5, 2012
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Hideki Matsuoka, Kazuyuki Maeda
  • Publication number: 20120069285
    Abstract: A vertical alignment liquid crystal layer is sealed between a first substrate having a first electrode and a second substrate having a second electrode, each pixel region has a reflective region and a transmissive region, and a gap adjusting section is provided on one of sides of the first substrate and the second substrate which sets a thickness (gap) d of the liquid crystal layer which controls a phase difference of incident light to the liquid crystal layer so that a gap dr in the reflective region is smaller than a gap dt in the transmissive region. An alignment controller which divides alignment of the liquid crystal within a pixel region is provided in the pixel region on at least one of the sides of the first substrate and the second substrate. It is also possible to optimize by changing the gap in red, green, and blue.
    Type: Application
    Filed: November 23, 2011
    Publication date: March 22, 2012
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Norio KOMA, Kazuhiro INOUE, Kazuyuki MAEDA, Masaaki AOTA, Masayuki KAMETANI
  • Patent number: 8089596
    Abstract: A vertical alignment liquid crystal layer is sealed between a first substrate having a first electrode and a second substrate having a second electrode, each pixel region has a reflective region and a transmissive region, and a gap adjusting section is provided on one of sides of the first substrate and the second substrate which sets a thickness (gap) of the liquid crystal layer which controls a phase difference of incident light to the liquid crystal layer so that a gap in the reflective region is smaller than a gap in the transmissive region. An alignment controller which divides alignment of the liquid crystal within a pixel region is provided in the pixel region on at least one of the sides of the first substrate and the second substrate. It is also possible to optimize by changing the gap in red, green, and blue.
    Type: Grant
    Filed: December 10, 2010
    Date of Patent: January 3, 2012
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Norio Koma, Kazuhiro Inoue, Kazuyuki Maeda, Masaaki Aota, Masayuki Kametani
  • Publication number: 20110221792
    Abstract: A liquid crystal device includes: a pixel for outputting a specified color light, which is provided with liquid crystals and an electrode for driving the liquid crystals and outputs light of the specified color; a pixel for controlling luminance and color purity, which outputs a control light for controlling the luminance and the color purity of the output light of the specified color; and a driving unit driving the pixel for outputting a specified color light, and the pixel for controlling luminance and color purity based on brightness information that indicates the brightness of an external environmental light.
    Type: Application
    Filed: March 8, 2011
    Publication date: September 15, 2011
    Applicant: SONY CORPORATION
    Inventors: Kazuyuki Maeda, Norio Koma, Masashi Mitsui, Kenji Tanase, Yoshihiro Watanabe
  • Publication number: 20110090442
    Abstract: A vertical alignment liquid crystal layer is sealed between a first substrate having a first electrode and a second substrate having a second electrode, each pixel region has a reflective region and a transmissive region, and a gap adjusting section is provided on one of sides of the first substrate and the second substrate which sets a thickness (gap) of the liquid crystal layer which controls a phase difference of incident light to the liquid crystal layer so that a gap in the reflective region is smaller than a gap in the transmissive region. An alignment controller which divides alignment of the liquid crystal within a pixel region is provided in the pixel region on at least one of the sides of the first substrate and the second substrate. It is also possible to optimize by changing the gap in red, green, and blue.
    Type: Application
    Filed: December 10, 2010
    Publication date: April 21, 2011
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Norio KOMA, Kazuhiro INOUE, Kazuyuki MAEDA, Masaaki AOTA, Masayuki KAMETANI
  • Patent number: 7887663
    Abstract: After a gate line (11), a TFT (1), and a data line (30) are formed, a riblike protective insulation layer (32) which coats the data line is formed on a substrate (10) serving as the element substrate of an active matrix type color liquid crystal display device or an organic EL display device. A color filter layer (42) on a transfer film (40) is press-bonded on this substrate (10) with a roller (46) moving in the extensional direction (columnar direction) of the protecting insulation layer (32). The advancement of the transfer of a color filter in the columnar direction makes it possible to bring the substrate and the color filter in contact without gaps while expelling the gas out of a pixel space in the advancement direction. During the step of forming a color filter, the protecting insulation layer (32) protects the data line (30) from the treatment liquid etc. An organic light emitting element layer is arranged in the pixel space to form an organic EL display device.
    Type: Grant
    Filed: April 4, 2008
    Date of Patent: February 15, 2011
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Hideki Matsuoka, Kazuyuki Maeda
  • Patent number: 7876407
    Abstract: A vertical alignment liquid crystal layer is sealed between a first substrate having a first electrode and a second substrate having a second electrode, each pixel region has a reflective region and a transmissive region, and a gap adjusting section is provided on one of sides of the first substrate and the second substrate which sets a thickness (gap) d of the liquid crystal layer which controls a phase difference of incident light to the liquid crystal layer so that a gap dr in the reflective region is smaller than a gap dt in the transmissive region. An alignment controller which divides alignment of the liquid crystal within a pixel region is provided in the pixel region on at least one of the sides of the first substrate and the second substrate. It is also possible to optimize by changing the gap in red, green, and blue.
    Type: Grant
    Filed: June 25, 2009
    Date of Patent: January 25, 2011
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Norio Koma, Kazuhiro Inoue, Kazuyuki Maeda, Masaaki Aota, Masayuki Kametani
  • Patent number: 7714959
    Abstract: A liquid crystal panel includes a first substrate having pixels defining a pixel region, and pixel electrodes and a common electrode disposed in the pixel region on the first substrate. The pixel electrodes are disposed for the respective pixels. The liquid crystal panel also includes a second substrate opposing the first substrate and a light-shielding film disposed on the second substrate. The light-shielding film includes a frame portion surrounding the pixel region and a middle portion disposed at least in the pixel region. The middle portion is made of a material having a higher specific resistance than the frame portion. The frame portion is made of a material having a higher light-shielding property than the middle portion.
    Type: Grant
    Filed: January 30, 2008
    Date of Patent: May 11, 2010
    Assignee: Epson Imaging Devices Corporation
    Inventor: Kazuyuki Maeda
  • Publication number: 20100044094
    Abstract: The printed wiring board 1 includes the metallic substrate 2, the insulating layer 3 provided on the surface of the metallic substrate 2, and the conductive layer 4 formed on the surface of the insulating layer 3. The conductive layer 4 is electrically connected to the metallic substrate 2. A bottomed via hole or a through hole 6 is formed in the insulating layer 3 and the conducive layer 4. The via hole has a bottom in the metallic substrate 2, and has a wall surface in the insulating layer 3 and in the conductive layer 4. The through hole 6 extends through the insulating layer 3, the conductive layer 4, and the metallic substrate 2. Conductive paste 7 fills the bottomed via hole or the through hole 6 to electrically connect the metallic substrate 2 and the conductive layer 4 with each other. The printed wiring board 1 is subjected to a process in which current is applied to the interface between the metallic substrate 2 and the conductive paste 7.
    Type: Application
    Filed: January 16, 2008
    Publication date: February 25, 2010
    Applicants: SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO ELECTRIC PRINTED CIRCUITS, INC.
    Inventors: Yoshio Oka, Jinjoo Park, Kazuyuki Maeda, Narito Yagi, Tetsuya Shimomura, Junichiro Nishikawa
  • Publication number: 20100028195
    Abstract: A soft magnetic material includes a plurality of composite magnetic particles (40) each including a metal magnetic particle (10) and an insulation coating (20) covering the surface of the metal magnetic particle (10), wherein the insulation coating (20) contains Si (silicon), and 80% or more of Si contained in the insulation coating constitutes a silsesquioxane skeleton. Therefore, it is possible to effectively decrease a hysteresis loss while suppressing an increase in eddy-current loss.
    Type: Application
    Filed: October 9, 2009
    Publication date: February 4, 2010
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Toru Maeda, Kazuyuki Maeda, Yasushi Mochida, Koji Mimura
  • Patent number: 7622202
    Abstract: A soft magnetic material includes a plurality of composite magnetic particles (40) each including a metal magnetic particle (10) and an insulation coating (20) covering the surface of the metal magnetic particle (10), wherein the insulation coating (20) contains Si (silicon), and 80% or more of Si contained in the insulation coating constitutes a silsesquioxane skeleton. Therefore, it is possible to effectively decrease a hysteresis loss while suppressing an increase in eddy-current loss.
    Type: Grant
    Filed: July 19, 2006
    Date of Patent: November 24, 2009
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Toru Maeda, Kazuyuki Maeda, Yasushi Mochida, Koji Mimura