Patents by Inventor Katsumi Kondo

Katsumi Kondo 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: 20190292614
    Abstract: Provided is a water-based quenching liquid composition which is slow in a cooling rate and is able to suppress quenching crack. The water-based quenching liquid composition is one containing water (A), a linear polyalkylene glycol compound (B), and a branched polyhydric alcohol alkylene oxide adduct (C), wherein the linear polyalkylene glycol compound (B) has a mass average molecular weight of 10,000 or more, and the branched polyhydric alcohol alkylene oxide adduct (C) is a mixed adduct of alkylene oxides having 2 to 3 carbon atoms and has a mass average molecular weight of 10,000 or more.
    Type: Application
    Filed: December 22, 2017
    Publication date: September 26, 2019
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Takashi KONDO, Rikki HOMMA, Katsumi ICHITANI
  • Publication number: 20190177107
    Abstract: A medium discharging device includes a discharge roller pair that discharges a medium, a discharge tray disposed below the discharge roller pair in a vertical direction and having a placement surface on which the discharged medium is placed, and a guide member that is advanced and retracted between an advanced position where the guide member is advanced inward in a width direction from opposite sides in the width direction intersecting a discharge direction of the medium and a retracted position where the guide member is retracted to an end portion position side in the width direction. When the guide member is disposed at the advanced position, an upstream side end portion of the guide member in the discharge direction is disposed between a discharge position by the discharge roller pair and a position of the placement surface of the discharge tray, in the vertical direction.
    Type: Application
    Filed: December 5, 2018
    Publication date: June 13, 2019
    Inventors: Katsuyuki KONDO, Masayoshi MIYAKAWA, Katsumi OKAMOTO
  • Publication number: 20160377925
    Abstract: A liquid crystal display is provided which is capable of reducing the occurrence of defective display due to variations in the initial alignment direction of a liquid crystal alignment control film in a liquid crystal display of an IPS scheme, realizing the stable liquid crystal alignment, providing excellent mass productivity, and having high image quality with a higher contrast ratio. The liquid crystal display has a liquid crystal layer disposed between a pair of substrates, at least one of the substrates being transparent, and an alignment control film formed between the liquid crystal layer and the substrate. At least one of the alignment control films 109 comprises photoreactive polyimide and/or polyamic acid provided with an alignment control ability by irradiation of substantially linearly polarized light.
    Type: Application
    Filed: June 27, 2016
    Publication date: December 29, 2016
    Inventors: Yasushi TOMIOKA, Hidetoshi ABE, Katsumi KONDO
  • Patent number: 9405152
    Abstract: A liquid crystal display is provided which is capable of reducing the occurrence of defective display due to variations in the initial alignment direction of a liquid crystal alignment control film in a liquid crystal display of an IPS scheme, realizing the stable liquid crystal alignment, providing excellent mass productivity, and having high image quality with a higher contrast ratio. The liquid crystal display has a liquid crystal layer disposed between a pair of substrates, at least one of the substrates being transparent, and an alignment control film formed between the liquid crystal layer and the substrate. At least one of the alignment control films 109 comprises photoreactive polyimide and/or polyamic acid provided with an alignment control ability by irradiation of substantially linearly polarized light.
    Type: Grant
    Filed: May 9, 2014
    Date of Patent: August 2, 2016
    Assignees: JAPAN DISPLAY INC., PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.
    Inventors: Yasushi Tomioka, Hidetoshi Abe, Katsumi Kondo
  • Patent number: 9285636
    Abstract: An image retention phenomenon and black unevenness generated after long-time operation in the liquid crystal device are prevented. By using a material having a polyamide acid ester as a precursor less likely to adsorb impurities on a boundary for an alignment film and a material having a dielectric constant anisotropy ?? of 5 or less for liquid crystals, adsorption of an antioxidant dispersed in the liquid crystals is suppressed to prevent oxidation of the liquid crystals. The extent that impurities are intruded into the liquid crystals is reduced by restricting the dielectric constant anisotropy ?? of the liquid crystals to 5 or less, thereby capable of preventing the image retention phenomenon and the black unevenness.
    Type: Grant
    Filed: May 27, 2009
    Date of Patent: March 15, 2016
    Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Noboru Kunimatsu, Chikae Matsui, Shigeru Matsuyama, Masaki Matsumori, Yasushi Tomioka, Katsumi Kondo
  • Patent number: 8879030
    Abstract: A transmitting liquid crystal display apparatus includes a liquid crystal panel including a pair of substrates, a pair of polarizers arranged adjacent to the pair of substrates respectively, a liquid crystal layer held between the pair of substrates, and electrodes arranged on at least one of the pair of substrates and serving to apply an electric field to the liquid crystal layer; and a light source unit arranged external to the pair of substrates, in which each of the pair of polarizers has an absorption axis along with an extraordinary wave axis of molecules constituting the polarizers. In this apparatus, a dye layer having a disc-form molecular structure is arranged between the polarizer and the substrate, or adjacent to the polarizer in proximity to the viewer. The dye layer has a transmission axis along with the extraordinary wave axis of the disc-form molecular structure.
    Type: Grant
    Filed: May 24, 2006
    Date of Patent: November 4, 2014
    Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Yuka Utsumi, Katsumi Kondo, Yasushi Tomioka
  • Publication number: 20140248445
    Abstract: A liquid crystal display is provided which is capable of reducing the occurrence of defective display due to variations in the initial alignment direction of a liquid crystal alignment control film in a liquid crystal display of an IPS scheme, realizing the stable liquid crystal alignment, providing excellent mass productivity, and having high image quality with a higher contrast ratio. The liquid crystal display has a liquid crystal layer disposed between a pair of substrates, at least one of the substrates being transparent, and an alignment control film formed between the liquid crystal layer and the substrate. At least one of the alignment control films 109 comprises photoreactive polyimide and/or polyamic acid provided with an alignment control ability by irradiation of substantially linearly polarized light.
    Type: Application
    Filed: May 9, 2014
    Publication date: September 4, 2014
    Applicants: JAPAN DISPLAY INC., PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.
    Inventors: Yasushi TOMIOKA, Hidetoshi ABE, Katsumi KONDO
  • Patent number: 8758871
    Abstract: A liquid crystal display is provided which is capable of reducing the occurrence of defective display due to variations in the initial alignment direction of a liquid crystal alignment control film in a liquid crystal display of an IPS scheme, realizing the stable liquid crystal alignment, providing excellent mass productivity, and having high image quality with a higher contrast ratio. The liquid crystal display has a liquid crystal layer disposed between a pair of substrates, at least one of the substrates being transparent, and an alignment control film formed between the liquid crystal layer and the substrate. At least one of the alignment control films 109 comprises photoreactive polyimide and/or polyamic acid provided with an alignment control ability by irradiation of substantially linearly polarized light.
    Type: Grant
    Filed: August 17, 2011
    Date of Patent: June 24, 2014
    Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Yasushi Tomioka, Hidetoshi Abe, Katsumi Kondo
  • Patent number: 8704988
    Abstract: A liquid crystal display device includes a first substrate, a pixel electrode and a counter electrode, an insulation film, and a first orientation film formed over the pixel electrode and the counter electrode on the first substrate, the first orientation film being responsive to a radiated polarized light to obtain an initial orientation direction. A second substrate is opposed to the first substrate, a second orientation film is formed over the second substrate, and a liquid crystal is sealed between the first and second substrates. The first and second orientation films are made of polyimide, the liquid crystal has negative dielectric anisotropy, and the liquid crystal display device is normally in a black mode. An angle formed between the electric field and the initial orientation direction of the first orientation film is in a range of greater than 0° to 45°.
    Type: Grant
    Filed: March 5, 2013
    Date of Patent: April 22, 2014
    Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Masuyuki Ohta, Kazuhiko Yanagawa, Kazuhiro Ogawa, Keiichiro Ashizawa, Masahiro Yanai, Nobutake Konishi, Katsumi Kondo, Masahito Ohe, Sukekazu Aratani, Hagen Klausmann
  • Patent number: 8514351
    Abstract: Manufacture of a liquid crystal display is disclosed. The liquid crystal display includes a backlight unit, a backlight unit-side polarizing plate, and a liquid crystal cell held by two glass plates, the liquid crystal cell having an electrode, a liquid crystal layer, an alignment layer, and a color filter arranged between the glass plates. The liquid crystal display also includes a transparent front plate arranged at a side of the liquid crystal cell opposite to the backlight unit, a polarizing plate attached to the liquid crystal cell, and a transparent organic medium layer arranged between the front plate and the liquid crystal cell. Since the front plate is provided at the outermost surface of an image display portion, and the transparent organic medium is filled between the front plate and the liquid crystal module, it is possible to achieve an improvement in wear resistance and a reduction in reflectance.
    Type: Grant
    Filed: June 2, 2010
    Date of Patent: August 20, 2013
    Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Hiroshi Sasaki, Makiko Sugibayashi, Yuka Utsumi, Yasushi Tomioka, Katsumi Kondo
  • Publication number: 20130194534
    Abstract: A liquid crystal display device includes a first substrate, a pixel electrode and a counter electrode, an insulation film, and a first orientation film formed over the pixel electrode and the counter electrode on the first substrate, the first orientation film being responsive to a radiated polarized light to obtain an initial orientation direction. A second substrate is opposed to the first substrate, a second orientation film is formed over the second substrate, and a liquid crystal is sealed between the first and second substrates. The first and second orientation films are made of polyimide, the liquid crystal has negative dielectric anisotropy, and the liquid crystal display device is normally in a black mode. An angle formed between the electric field and the initial orientation direction of the first orientation film is in a range of greater than 0° to 45°.
    Type: Application
    Filed: March 5, 2013
    Publication date: August 1, 2013
    Applicants: Panasonic Liquid Crystal Display Co., Ltd., Hitachi Displays, Ltd.
    Inventors: Masuyuki Ohta, Kazuhiko Yanagawa, Kazuhiro Ogawa, Keiichiro Ashizawa, Masahiro Yanai, Nobutake Konishi, Katsumi Kondo, Masahito Ohe, Sukekazu Aratani, Hagen Klausmann
  • Patent number: 8427613
    Abstract: A liquid crystal display device includes a first substrate, a second substrate, a liquid crystal layer sandwiched between the first and second substrates, and an orientation film formed on the first substrate. The orientation film has two orientation regions in a pixel, and the orientation regions are formed by polarized light.
    Type: Grant
    Filed: June 3, 2011
    Date of Patent: April 23, 2013
    Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Masuyuki Ohta, Kazuhiko Yanagawa, Kazuhiro Ogawa, Keiichiro Ashizawa, Masahiro Yanai, Nobutake Konishi, Katsumi Kondo, Masahito Ohe, Sukekazu Aratani, Hagen Klausmann
  • Patent number: 8339356
    Abstract: A liquid crystal display apparatus includes a white color light source and a coloring light source, a detection circuit which detects a brightness of an input image signal, an image quality processing calculation circuit, a light source control circuit, and an image control circuit. The coloring light source includes a blue light source. The image quality processing calculation circuit outputs to the light source control circuit a light source control signal for (1) increasing a light intensity of the coloring light source when an average luminance of the input image signal is detected to be higher than a predetermined luminance based on a detection result of the detection circuit, and for (2) turning-on only the white color light source without turning-on the coloring light source when the average luminance of the input image signal is detected to be lower than the predetermined luminance.
    Type: Grant
    Filed: February 7, 2011
    Date of Patent: December 25, 2012
    Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Yuka Utsumi, Yasushi Tomioka, Akitoyo Konno, Katsumi Kondo
  • Patent number: 8259262
    Abstract: Provided is a liquid crystal display apparatus including: a liquid crystal panel including a pair of substrates; a liquid crystal layer sandwiched by the pair of substrates; plural electrodes formed on at least one of the pair of substrates; and a pair of polarizers provided in respective outsides of the pair of substrates; and a back light unit provided in a rear of the liquid crystal panel, in which one of the pair of polarizers, which is provided at a side of the back light unit, includes at least two types of layers which cause polarization, and in which the two types of layers include a first layer provided on a side of the liquid crystal layer and a second layer provided on a side of the back light unit, the first layer being a negative uniaxial polarizer layer, the second layer being a positive uniaxial polarizer layer.
    Type: Grant
    Filed: August 12, 2009
    Date of Patent: September 4, 2012
    Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Yuka Utsumi, Ikuo Hiyama, Katsumi Kondo, Shigeru Matsuyama
  • Publication number: 20120092392
    Abstract: A display apparatus and method having a pair of substrates, a display area which has a plurality of pixels, a lighting device which includes a plurality of light sources, a scanning driver which outputs scanning signals to the plurality of pixels, and an image driver which outputs image signals to the plurality of pixels. The lighting device illuminates the display area, the image signals are inputted to the plurality of pixels respectively, and each of the plurality of pixels controls a transmittance of an incident light from the lighting device after the image signals are inputted to the plurality of pixels respectively. The lighting device lights the plurality of light sources corresponding to the image signals inputted to the plurality of pixels after each of the plurality of pixels controls the transmittance.
    Type: Application
    Filed: December 22, 2011
    Publication date: April 19, 2012
    Inventors: Sukekazu Aratani, Ikuo Hiyama, Masaya Adachi, Tsunenori Yamamoto, Katsumi Kondo
  • Patent number: 8154698
    Abstract: A liquid crystal display device includes a first substrate, a second substrate, a first electrode and a second electrode formed on the first substrate, the second electrode being arranged at an upper layer with respect to the first electrode, a drain signal line and a gate signal line formed on the first substrate, and a liquid crystal layer driven by an electric field formed between the first electrode and the second electrode. The first electrode extends in parallel to the drain signal line and the second electrode extends at a slanted direction to the drain signal line.
    Type: Grant
    Filed: June 3, 2011
    Date of Patent: April 10, 2012
    Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Masuyuki Ohta, Kazuhiko Yanagawa, Kazuhiro Ogawa, Keiichiro Ashizawa, Masahiro Yanai, Nobutake Konishi, Katsumi Kondo, Masahito Ohe, Sukekazu Aratani, Hagen Klausmann
  • Publication number: 20110301324
    Abstract: A liquid crystal display is provided which is capable of reducing the occurrence of defective display due to variations in the initial alignment direction of a liquid crystal alignment control film in a liquid crystal display of an IPS scheme, realizing the stable liquid crystal alignment, providing excellent mass productivity, and having high image quality with a higher contrast ratio. The liquid crystal display has a liquid crystal layer disposed between a pair of substrates, at least one of the substrates being transparent, and an alignment control film formed between the liquid crystal layer and the substrate. At least one of the alignment control films 109 comprises photoreactive polyimide and/or polyamic acid provided with an alignment control ability by irradiation of substantially linearly polarized light.
    Type: Application
    Filed: August 17, 2011
    Publication date: December 8, 2011
    Inventors: Yasushi Tomioka, Hidetoshi Abe, Katsumi Kondo
  • Patent number: 8059235
    Abstract: A liquid crystal display includes a pair of substrates having a polarizer, a liquid crystal layer sandwiched between the substrates of the pair, a color filter layer sandwiched between one of the substrates of the pair and the liquid crystal layer, a light source for supplying light to the pair of substrates, the liquid crystal layer, and the color filter layer. The color filter layer includes three filters for displaying blue, green and red. Only the green filter of the three filters selectively includes an absorbing component capable of absorbing a light spectrum within a wavelength range from 480 nm to 500 nm.
    Type: Grant
    Filed: February 2, 2009
    Date of Patent: November 15, 2011
    Assignee: Hitachi Displays, Ltd.
    Inventors: Yuka Utsumi, Makiko Sugibayashi, Ikuo Hiyama, Katsumi Kondo, Mutsumi Maehara
  • Patent number: 8059245
    Abstract: An active matrix liquid crystal display device is provided, in which an after image remaining after removing an application of a direct current voltage is suppressed. The active matrix liquid crystal display device has a liquid crystal layer containing a liquid crystal molecule having negative dielectric anisotropy and a dopant having a dissociative group.
    Type: Grant
    Filed: September 28, 2010
    Date of Patent: November 15, 2011
    Assignee: Hitachi, Ltd.
    Inventors: Yasushi Iwakabe, Masuyuki Ohta, Shigeru Matsuyama, Hitoshi Oaku, Katsumi Kondo
  • Publication number: 20110234961
    Abstract: A liquid crystal display device includes a first substrate, a second substrate, a first electrode and a second electrode formed on the first substrate, the second electrode being arranged at an upper layer with respect to the first electrode, a drain signal line and a gate signal line formed on the first substrate, and a liquid crystal layer driven by an electric field formed between the first electrode and the second electrode. The first electrode extends in parallel to the drain signal lien and the second electrode extends at a slanted direction to the drain signal line.
    Type: Application
    Filed: June 3, 2011
    Publication date: September 29, 2011
    Inventors: Masuyuki Ohta, Kazuhiko Yanagawa, Kazuhiro Ogawa, Keiichiro Ashizawa, Masahiro Yanai, Nobutake Konishi, Katsumi Kondo, Masahito Ohe, Sukekazu Aratani, Hagen Klausmann