Patents by Inventor Michitoshi Tsuchiya

Michitoshi Tsuchiya 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: 11910696
    Abstract: A self-luminous display panel 10 in which self-luminous elements 2 are arranged on a plane, wherein each of the self-luminous elements includes: a pair of electrodes 13, 20 disposed facing each other, an electrode of the pair of electrodes including a metal layer 20A; functional layers 15, 16, 17, 18, 19 including a light emitting layer 17, disposed between the pair of electrodes; and a sealing layer 21 that covers the pair of electrodes and the functional layers from a direction. The self-luminous elements include a repaired self-luminous element 2?. The repaired self-luminous element includes a foreign object FO among the functional layers. The electrode including the metal layer has a high resistance portion 201 surrounding, in plan view, an area containing the foreign object, and has a thickened portion 202 of the metal layer at an outer edge, in plan view, of the high resistance portion.
    Type: Grant
    Filed: November 9, 2021
    Date of Patent: February 20, 2024
    Assignee: JDI DESIGN AND DEVELOPMENT G.K.
    Inventors: Akio Miyajima, Michitoshi Tsuchiya, Hiroki Kato, Makoto Noda, Masaichi Okubo, Mario Amatsuchi
  • Publication number: 20220149314
    Abstract: A self-luminous display panel 10 in which self-luminous elements 2 are arranged on a plane, wherein each of the self-luminous elements includes: a pair of electrodes 13, 20 disposed facing each other, an electrode of the pair of electrodes including a metal layer 20A; functional layers 15, 16, 17, 18, 19 including a light emitting layer 17, disposed between the pair of electrodes; and a sealing layer 21 that covers the pair of electrodes and the functional layers from a direction. The self-luminous elements include a repaired self-luminous element 2?. The repaired self-luminous element includes a foreign object FO among the functional layers. The electrode including the metal layer has a high resistance portion 201 surrounding, in plan view, an area containing the foreign object, and has a thickened portion 202 of the metal layer at an outer edge, in plan view, of the high resistance portion.
    Type: Application
    Filed: November 9, 2021
    Publication date: May 12, 2022
    Applicant: JOLED Inc.
    Inventors: Akio MIYAJIMA, Michitoshi TSUCHIYA, Hiroki KATO, Makoto NODA, Masaichi OKUBO, Mario AMATSUCHI
  • Patent number: 10109816
    Abstract: A display unit includes a display panel and a first protective sheet. The display panel has a light-emitting surface. The first protective sheet is provided on the light-emitting surface. The first protective sheet provided in the display unit includes a first impact dispersion layer, a first strain relaxation layer, and a gel-like first impact absorption layer. The first impact dispersion layer has a pencil hardness of 3H or higher. The first strain relaxation layer has flexural strength and tensile strength both higher than the flexural strength and the tensile strength of the first impact dispersion layer. The gel-like first impact absorption layer has a thickness of a submillimeter order or more. The first impact absorption layer, the first strain relaxation layer, and the first impact dispersion layer are arranged in this order from the light-emitting surface.
    Type: Grant
    Filed: February 23, 2017
    Date of Patent: October 23, 2018
    Assignee: JOLED Inc.
    Inventors: Takahiro Seki, Michitoshi Tsuchiya, Makoto Noda
  • Publication number: 20170263889
    Abstract: A display unit includes a display panel and a first protective sheet. The display panel has a light-emitting surface. The first protective sheet is provided on the light-emitting surface. The first protective sheet provided in the display unit includes a first impact dispersion layer, a first strain relaxation layer, and a gel-like first impact absorption layer. The first impact dispersion layer has a pencil hardness of 3H or higher. The first strain relaxation layer has flexural strength and tensile strength both higher than the flexural strength and the tensile strength of the first impact dispersion layer. The gel-like first impact absorption layer has a thickness of a submillimeter order or more. The first impact absorption layer, the first strain relaxation layer, and the first impact dispersion layer are arranged in this order from the light-emitting surface.
    Type: Application
    Filed: February 23, 2017
    Publication date: September 14, 2017
    Inventors: Takahiro Seki, Michitoshi Tsuchiya, Makoto Noda
  • Patent number: 9082733
    Abstract: A display unit comprising an organic layer between a light-emitting section portion of a first electrode layer and a light-emitting section portion of a second electrode layer. Light is emissible from within the organic layer. An aperture-defining insulating film is between a contact section of the first electrode layer and a gap section portion of the second electrode layer. The thickness of the gap section portion of the second electrode layer is greater than the thickness of the light-emitting section portion of the second electrode layer.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: July 14, 2015
    Assignee: Sony Corporation
    Inventors: Seiichiro Jinta, Makoto Noda, Gaku Izumi, Kenichi Izumi, Manabu Kodate, Takahiro Seki, Michitoshi Tsuchiya
  • Publication number: 20150053963
    Abstract: A display unit comprising an organic layer between a light-emitting section portion of a first electrode layer and a light-emitting section portion of a second electrode layer. Light is emissible from within the organic layer. An aperture-defining insulating film is between a contact section of the first electrode layer and a gap section portion of the second electrode layer. The thickness of the gap section portion of the second electrode layer is greater than the thickness of the light-emitting section portion of the second electrode layer.
    Type: Application
    Filed: October 31, 2014
    Publication date: February 26, 2015
    Inventors: Seiichiro Jinta, Makoto Noda, Gaku Izumi, Kenichi Izumi, Manabu Kodate, Takahiro Seki, Michitoshi Tsuchiya
  • Patent number: 8907331
    Abstract: A display unit comprising an organic layer between a light-emitting section portion of a first electrode layer and a light-emitting section portion of a second electrode layer. Light is emissible from within the organic layer. An aperture-defining insulating film is between a contact section of the first electrode layer and a gap section portion of the second electrode layer. The thickness of the gap section portion of the second electrode layer is greater than the thickness of the light-emitting section portion of the second electrode layer.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: December 9, 2014
    Assignee: Sony Corporation
    Inventors: Seiichiro Jinta, Makoto Noda, Gaku Izumi, Kenichi Izumi, Manabu Kodate, Takahiro Seki, Michitoshi Tsuchiya
  • Publication number: 20140034921
    Abstract: A display unit comprising an organic layer between a light-emitting section portion of a first electrode layer and a light-emitting section portion of a second electrode layer. Light is emissible from within the organic layer. An aperture-defining insulating film is between a contact section of the first electrode layer and a gap section portion of the second electrode layer. The thickness of the gap section portion of the second electrode layer is greater than the thickness of the light-emitting section portion of the second electrode layer.
    Type: Application
    Filed: July 3, 2013
    Publication date: February 6, 2014
    Inventors: Seiichiro Jinta, Makoto Noda, Gaku Izumi, Kenichi Izumi, Manabu Kodate, Takahiro Seki, Michitoshi Tsuchiya
  • Patent number: 8470185
    Abstract: A method of manufacturing a perpendicular magnetic write head capable of precisely narrowing a side gap is provided. A tip portion having a cross sectional geometry of an inverted trapezoid is formed in an opening portion of a non-magnetic layer and thereafter, the non-magnetic layer is etched with the tip portion as a mask. Thereby, a portion adjacent to the tip portion in a writing track width direction remains and an outermost edge portion of the tip portion in that direction is located on a plane which coincides with an etching face (side face) of the non-magnetic layer. When a gap layer is formed with a vapor phase growth such as a sputtering method to cover the side face of the non-magnetic layer and thereafter a side shield layer is formed adjacently to the tip portion therethrough, a thickness of the gap layer becomes extremely thin and is reproduced precisely. Therefore, the side gap is narrowed with high precision.
    Type: Grant
    Filed: May 29, 2009
    Date of Patent: June 25, 2013
    Assignee: SAE Magnetics (H.K.) Ltd.
    Inventors: Tetsuya Mino, Naoto Matono, Ikuhito Onodera, Kazushi Nishiyama, Michitoshi Tsuchiya, Kenji Sasaki
  • Patent number: 8353098
    Abstract: A method of manufacturing a perpendicular magnetic recording head capable of easily and accurately forming a main magnetic-pole layer having a shape suitable for concentrating a magnetic flux is provided. A nonmagnetic layer having a recessed section (a first recessed section and a second recessed section) is formed, and then an additional nonmagnetic layer is formed on an inner surface of the recessed section. Then, a magnetic layer is formed in the recessed section formed with the additional nonmagnetic layer, and then the magnetic layer is cut to form an air bearing surface, so as to form the main magnetic-pole layer.
    Type: Grant
    Filed: March 12, 2010
    Date of Patent: January 15, 2013
    Assignee: SAE Magnetics (H.K.) Ltd.
    Inventors: Tetsuya Mino, Naoto Matono, Ikuhito Onodera, Kazushi Nishiyama, Michitoshi Tsuchiya, Kenji Sasaki
  • Patent number: 8355222
    Abstract: A perpendicular magnetic write head includes: a magnetic pole; a pair of nonmagnetic side gap layers provided on both sides in a track-width direction of the magnetic pole; a nonmagnetic trailing gap layer provided on a trailing side of the magnetic pole; a magnetic shield layer so provided as to surround the magnetic pole with both of the nonmagnetic side gap layer and the nonmagnetic trailing gap layer in between; and a magnetic seed layer formed between the nonmagnetic trailing gap layer and the magnetic shield layer, and having a saturation magnetic flux density higher than that of the magnetic shield layer. The magnetic seed layer is not formed between the nonmagnetic side gap layer and the magnetic shield layer.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: January 15, 2013
    Assignee: SAE Magnetics (H.K.) Ltd.
    Inventors: Tetsuya Mino, Naoto Matono, Ikuhito Onodera, Kazushi Nishiyama, Michitoshi Tsuchiya, Kenji Sasaki
  • Patent number: 8339737
    Abstract: A perpendicular magnetic write head capable of suppressing damage and corrosion of a magnetic pole to secure a stable writing performance is provided. A non-magnetic protruding layer protruding from a main magnetic pole layer (tip portion) toward an air bearing surface side is formed on both sides of the tip portion in a writing track width direction. The non-magnetic protruding layer is located closer to a recording medium than the tip portion during writing operation, and is more likely to be in contact with the writing medium instead of the tip portion. Since the protective film portion covering the tip portion hardly peels off (e.g., compared to the protective film portion covering the non-magnetic protruding layer), the tip portion is hardly damaged or corroded. Since the tip portion is protected physically and chemically by the non-magnetic protruding layer, deterioration of the soft magnetic characteristics of the tip portion is suppressed.
    Type: Grant
    Filed: June 12, 2009
    Date of Patent: December 25, 2012
    Assignee: SAE Magnetics (H.K.) Ltd.
    Inventors: Tetsuya Mino, Naoto Matono, Ikuhito Onodera, Kazushi Nishiyama, Michitoshi Tsuchiya, Kenji Sasaki
  • Patent number: 8169739
    Abstract: A perpendicular magnetic write head in which unintended erasure of information at the time of non-writing can be suppressed while keeping the capability of writing is provided. The perpendicular magnetic write head includes a magnetic pole tip portion, a first yoke portion connected to the magnetic pole tip portion, having a width larger than that of the magnetic pole tip portion, and having a recess portion in a center region thereof, and a second yoke portion embedded in the recess portion. The magnetic pole tip portion and the first yoke portion are integrally formed with a vapor deposition method, and the second yoke portion is formed with a plating method. Since the saturation flux density of the magnetic pole tip portion formed with the vapor deposition method becomes higher than that of the yoke portion, a magnetic flux intake capacity of the magnetic pole tip portion is ensured.
    Type: Grant
    Filed: September 15, 2009
    Date of Patent: May 1, 2012
    Assignee: SAE Magnetics (H.K.) Ltd.
    Inventors: Tetsuya Mino, Naoto Matono, Ikuhito Onodera, Kazushi Nishiyama, Michitoshi Tsuchiya, Kenji Sasaki
  • Patent number: 8117737
    Abstract: A manufacturing method for a magnetic head includes the steps of: forming a structure on a lower shield, the structure including a lower gap, a main magnetic pole and first and second side gaps; forming first and second side shields; forming an upper gap; and forming an upper shield. In the step of forming the structure, an initial lower gap layer is formed on the lower shield, the initial lower gap layer including a pre-lower-gap portion, and two to-be-removed portions that are located on opposite sides of the pre-lower-gap portion. Then, a protrusion including the main magnetic pole and the first and second side gaps is formed on the pre-lower-gap portion. With the top surface of the protrusion covered with a mask, the initial lower gap layer is etched in part to thereby form the lower gap.
    Type: Grant
    Filed: November 30, 2009
    Date of Patent: February 21, 2012
    Assignee: TDK Corporation
    Inventors: Hisayoshi Watanabe, Masachika Hashino, Michitoshi Tsuchiya, Koichi Otani, Tatsuhiro Nojima, Tsutomu Nishinaga, Hideyuki Ukita
  • Publication number: 20120002326
    Abstract: A perpendicular magnetic write head includes: a magnetic pole; a pair of nonmagnetic side gap layers provided on both sides in a track-width direction of the magnetic pole; a nonmagnetic trailing gap layer provided on a trailing side of the magnetic pole; a magnetic shield layer so provided as to surround the magnetic pole with both of the nonmagnetic side gap layer and the nonmagnetic trailing gap layer in between; and a magnetic seed layer formed between the nonmagnetic trailing gap layer and the magnetic shield layer, and having a saturation magnetic flux density higher than that of the magnetic shield layer. The magnetic seed layer is not formed between the nonmagnetic side gap layer and the magnetic shield layer.
    Type: Application
    Filed: June 30, 2010
    Publication date: January 5, 2012
    Applicant: SAE Magnetics (H.K.) Ltd.
    Inventors: Tetsuya Mino, Naoto Matono, Ikuhito Onodera, Kazushi Nishiyama, Michitoshi Tsuchiya, Kenji Sasaki
  • Publication number: 20110220611
    Abstract: A method of manufacturing a perpendicular magnetic recording head capable of easily and accurately forming a main magnetic-pole layer having a shape suitable for concentrating a magnetic flux is provided. A nonmagnetic layer having a recessed section (a first recessed section and a second recessed section) is formed, and then an additional nonmagnetic layer is formed on an inner surface of the recessed section. Then, a magnetic layer is formed in the recessed section formed with the additional nonmagnetic layer, and then the magnetic layer is cut to form an air bearing surface, so as to form the main magnetic-pole layer.
    Type: Application
    Filed: March 12, 2010
    Publication date: September 15, 2011
    Applicant: SAE Magnetics (H.K.) Ltd.
    Inventors: Tetsuya Mino, Naoto Matono, Ikuhito Onodera, Kazushi Nishiyama, Michitoshi Tsuchiya, Kenji Sasaki
  • Publication number: 20110127234
    Abstract: A manufacturing method for a magnetic head includes the steps of; forming a structure on a lower shield, the structure including a lower gap, a main magnetic pole and first and second side gaps; forming first and second side shields; forming an upper gap; and forming an upper shield. In the step of forming the structure, an initial lower gap layer is formed on the lower shield, the initial lower gap layer including a pre-lower-gap portion, and two to-be-removed portions that are located on opposite sides of the pre-lower-gap portion. Then, a protrusion including the main magnetic pole and the first and second side gaps is formed on the pre-lower-gap portion. With the top surface of the protrusion covered with a mask, the initial lower gap layer is etched in part to thereby form the lower gap.
    Type: Application
    Filed: November 30, 2009
    Publication date: June 2, 2011
    Applicant: TDK CORPORATION
    Inventors: Hisayoshi Watanabe, Masachika Hashino, Michitoshi Tsuchiya, Koichi Otani, Tatsuhiro Nojima, Tsutomu Nishinaga, Hideyuki Ukita
  • Publication number: 20110063754
    Abstract: A perpendicular magnetic write head in which unintended erasure of information at the time of non-writing can be suppressed while keeping the capability of writing is provided. The perpendicular magnetic write head includes a magnetic pole tip portion, a first yoke portion connected to the magnetic pole tip portion, having a width larger than that of the magnetic pole tip portion, and having a recess portion in a center region thereof, and a second yoke portion embedded in the recess portion. The magnetic pole tip portion and the first yoke portion are integrally formed with a vapor deposition method, and the second yoke portion is formed with a plating method. Since the saturation flux density of the magnetic pole tip portion formed with the vapor deposition method becomes higher than that of the yoke portion, a magnetic flux intake capacity of the magnetic pole tip portion is ensured.
    Type: Application
    Filed: September 15, 2009
    Publication date: March 17, 2011
    Applicant: SAE Magnetics (H.K.) Ltd.
    Inventors: Tetsuya Mino, Naoto Matono, Ikuhito Onodera, Kazushi Nishiyama, Michitoshi Tsuchiya, Kenji Sasaki
  • Publication number: 20100315741
    Abstract: A perpendicular magnetic write head capable of suppressing damage and corrosion of a magnetic pole to secure a stable writing performance is provided. A non-magnetic protruding layer protruding from a main magnetic pole layer (tip portion) toward an air bearing surface side is formed on both sides of the tip portion in a writing track width direction. The non-magnetic protruding layer is located closer to a recording medium than the tip portion during writing operation, and more likely to be in contact with the writing medium instead of the tip portion. Since the portion of the protective film covering the tip portion hardly peels off while the portion of the protective film covering the non-magnetic protruding layer is easy to peel off, the tip portion is hardly damaged or corroded. Since the tip portion is protected physically and chemically by the non-magnetic protruding layer, the deterioration of the soft magnetic characteristics of the tip portion is suppressed.
    Type: Application
    Filed: June 12, 2009
    Publication date: December 16, 2010
    Applicant: SAE Magnetics (H.K.) Ltd.
    Inventors: Tetsuya Mino, Naoto Matono, Ikuhito Onodera, Kazushi Nishiyama, Michitoshi Tsuchiya, Kenji Sasaki
  • Publication number: 20100302681
    Abstract: A method of manufacturing a perpendicular magnetic write head capable of precisely narrowing a side gap is provided. A tip portion having a cross sectional geometry of an inverted trapezoid is formed in an opening portion of a non-magnetic layer and thereafter, the non-magnetic layer is etched with the tip portion as a mask. Thereby, a portion adjacent to the tip portion in a writing track width direction remains and an outermost edge portion of the tip portion in that direction is located on a plane which coincides with an etching face (side face) of the non-magnetic layer. When a gap layer is formed with a vapor phase growth such as a sputtering method to cover the side face of the non-magnetic layer and thereafter a side shield layer is formed adjacently to the tip portion therethrough, a thickness of the gap layer becomes extremely thin and is reproduced precisely. Therefore, the side gap is narrowed with high precision.
    Type: Application
    Filed: May 29, 2009
    Publication date: December 2, 2010
    Applicant: SAE Magnetics (H.K.) Ltd.
    Inventors: Tetsuya MINO, Naoto MATONO, Ikuhito ONODERA, Kazushi NISHIYAMA, Michitoshi TSUCHIYA, Kenji SASAKI