Patents by Inventor Naoki Nakagawa

Naoki Nakagawa 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: 9542053
    Abstract: A touch screen according to the present invention includes a transparent substrate, a first detection electrode formed on the transparent substrate, a second detection electrode disposed to sterically cross the first detection electrode via an interlayer insulating film, and a polarizing plate bonded to cover the second detection electrode. Each of the first detection electrode and the second detection electrode includes, as a repetition unit, thin wire electrodes that incline in different directions and cross each other. The thin wire electrodes are formed of a combination of a plurality of conductive thin wires extending in a direction inclined 10 degrees or less from a transmission axis direction or an absorption axis direction of the polarizing plate.
    Type: Grant
    Filed: January 23, 2015
    Date of Patent: January 10, 2017
    Assignee: Mitsubishi Electric Corporation
    Inventors: Takeshi Ono, Tatsuya Nakamura, Takuji Imamura, Takashi Miyayama, Tae Orita, Masafumi Agari, Naoki Nakagawa
  • Patent number: 9505081
    Abstract: A manufacturing method for an outer joint member of a constant velocity universal joint includes forming a cup member and a shaft member, forming a joining hole in a thickness of a bottom portion to prepare the cup member as a finished component, and forming a joining outer surface on an end portion of the shaft member to be joined onto the bottom portion of the cup member to prepare the shaft member as a finished component. The method also includes fitting the joining hole of the cup member and the joining outer surface of the shaft member as the finished components to each other, and welding a fitting portion between the joining hole and the joining outer surface through irradiation of a beam from an inner side of the cup member, a diameter of the fitting portion being an equal dimension for each joint size.
    Type: Grant
    Filed: November 22, 2013
    Date of Patent: November 29, 2016
    Assignee: NTN CORPORATION
    Inventors: Naoki Nakagawa, Shintaro Suzuki, Shigeki Matsushita
  • Patent number: 9477362
    Abstract: A touch screen according to a disclosed embodiment may have a small cross capacitance between row-direction wiring and column-direction wiring, and a large change of the cross capacitance when the touch screen is touched by an indication body. A row-direction wiring includes a first portion and a second portion having a smaller wiring width than a wiring width of the first portion. A wiring width of the column-direction wiring is smaller than a length in a row direction of the second portion. The row-direction and column-direction wiring intersect in the second portion, and gaps are formed between the row-direction and column-direction wiring in planar view in an intersection portion. The touch screen further includes floating wiring that fills the gaps in planar view, and the floating wiring is formed in the same layer as the row-direction wiring or the column-direction wiring, and is insulated from both wirings.
    Type: Grant
    Filed: August 2, 2013
    Date of Patent: October 25, 2016
    Assignee: Mitsubishi Electric Corporation
    Inventors: Takeshi Ono, Naoki Nakagawa, Masafumi Agari, Takahiro Nishioka, Seiichiro Mori, Takashi Miyayama, Takuji Imamura, Tatsuya Nakamura
  • Patent number: 9442616
    Abstract: In an intersecting region of a bundle of wirings in a column direction and a bundle of wirings in a row direction, a column wiring block region arranged with detection column wirings and first floating wirings and a row wiring block region arranged with detection row wirings and second floating wirings are disposed in a staggered manner. The bundle of wirings in the column direction includes a first compensation region arranged with the detection column wirings which connect between the detection column wirings in the column wiring block regions adjacent to each other in a diagonal direction. The bundle of wirings in the row direction includes a second compensation region arranged with the detection row wirings which electrically connect between the detection row wirings in the row wiring block regions adjacent to each other in a diagonal direction.
    Type: Grant
    Filed: October 1, 2014
    Date of Patent: September 13, 2016
    Assignee: Mitsubishi Electric Corporation
    Inventors: Takuji Imamura, Takeshi Ono, Tatsuya Nakamura, Tae Orita, Masafumi Agari, Naoki Nakagawa
  • Patent number: 9395855
    Abstract: A touchscreen of the present invention is covered by wiring patterns of a row-directional line and a column-directional line being upper and lower two layers. A step height that is produced by an upper electrode riding on a lower electrode when a floating electrode is provided at a region adjacent to the row-directional line and the column-directional line is suppressed.
    Type: Grant
    Filed: December 2, 2013
    Date of Patent: July 19, 2016
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Tatsuya Nakamura, Takuji Imamura, Takeshi Ono, Naoki Nakagawa, Masafumi Agari, Seiichiro Mori, Takashi Miyayama
  • Publication number: 20160041651
    Abstract: A touch screen according to the present invention includes: a transparent substrate; a plurality of row-direction wirings and a plurality of column-direction wirings provided on the transparent substrate, the row-direction wirings and the column-direction wirings intersecting via an inter-layer insulating film with each other in a stereoscopic view; a plurality of lead-out wirings each provided to be electrically extended from each of first ends of the said row-direction wirings and the column-direction wirings; and a shield wiring provided to surround in a planar view the row-direction wirings, the column-direction wirings, and the lead-out wirings, wherein the row-direction wirings, the column-direction wirings, and the shield wiring have comb-teeth parts which are formed to have comb-teeth shapes such that distances from the shield wiring to the row-direction wirings and the column-direction wirings are small at predetermined parts.
    Type: Application
    Filed: July 15, 2015
    Publication date: February 11, 2016
    Applicant: Mitsubishi Electric Corporation
    Inventors: Tatsuya NAKAMURA, Takeshi ONO, Takashi MIYAYAMA, Naoki NAKAGAWA, Masafumi AGARI, Tae ORITA
  • Patent number: 9244575
    Abstract: A touch screen includes a base substrate, a bundle of rectangular wirings in a column direction including a plurality of detection column wirings that are electrically connected in common, and a bundle of rectangular wirings in a row direction including a plurality of detection row wirings that are electrically connected in common, the bundle of wirings being formed on the base substrate. Also, a plurality of block areas obtained by dividing an intersection area in which the bundle of wirings in the column direction and the bundle of wirings in the row direction intersect in a plan view are defined, and only the detection column wiring or only the detection row wiring is provided in each of the block areas.
    Type: Grant
    Filed: October 2, 2012
    Date of Patent: January 26, 2016
    Assignee: Mitsubishi Electric Corporation
    Inventors: Masafumi Agari, Naoki Nakagawa, Takeshi Ono, Seiichiro Mori, Takashi Miyayama, Takuji Imamura, Tatsuya Nakamura
  • Publication number: 20150378484
    Abstract: Detection column wires and detection row wires are formed by fine wires made of a light-reflective conductive material. The detection column wires are divided into a plurality of column-direction wire bundles each including a predetermined number of detection column wires electrically connected to one another. The detection row wires are divided into a plurality of row-direction wire bundles each including a predetermined number of detection row wires electrically connected to one another. Reflected light distribution patterns are further provided. The reflected light distribution patterns each include a curved portion that is curved when viewed from a direction perpendicular to a surface of a touch screen, are arranged so that normals to the curved portion are directed towards all directions, and are dispersed so that regions, of curved portions, in which normals are perpendicular to a longitudinal direction of pixels are not aligned with each other in the longitudinal direction of the pixels.
    Type: Application
    Filed: March 7, 2014
    Publication date: December 31, 2015
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Tae ORITA, Naoki NAKAGAWA, Takeshi ONO, Masafumi AGARI, Seiichiro MORI, Takashi MIYAYAMA, Takuji IMAMURA, Tatsuya NAKAMURA
  • Publication number: 20150315668
    Abstract: A manufacturing method for an outer joint member of a constant velocity universal joint includes forming a cup member and a shaft member, forming a joining hole in a thickness of a bottom portion to prepare the cup member as a finished component, and forming a joining outer surface on an end portion of the shaft member to be joined onto the bottom portion of the cup member to prepare the shaft member as a finished component. The method also includes fitting the joining hole of the cup member and the joining outer surface of the shaft member as the finished components to each other, and welding a fitting portion between the joining hole and the joining outer surface through irradiation of a beam from an inner side of the cup member, a diameter of the fitting portion being an equal dimension for each joint size.
    Type: Application
    Filed: November 22, 2013
    Publication date: November 5, 2015
    Inventors: Naoki NAKAGAWA, Shintaro SUZUKI, Shigeki MATSUSHITA
  • Publication number: 20150242013
    Abstract: A touch screen according to a disclosed embodiment may have a small cross capacitance between row-direction wiring and column-direction wiring, and a large change of the cross capacitance when the touch screen is touched by an indication body. A row-direction wiring includes a first portion and a second portion having a smaller wiring width than a wiring width of the first portion. A wiring width of the column-direction wiring is smaller than a length in a row direction of the second portion. The row-direction and column-direction wiring intersect in the second portion, and gaps are formed between the row-direction and column-direction wiring in planar view in an intersection portion. The touch screen further includes floating wiring that fills the gaps in planar view, and the floating wiring is formed in the same layer as the row-direction wiring or the column-direction wiring, and is insulated from both wirings.
    Type: Application
    Filed: August 2, 2013
    Publication date: August 27, 2015
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Takeshi Ono, Naoki Nakagawa, Masafumi Agari, Takahiro Nishioka, Seiichiro Mori, Takashi Miyayama, Takuji Imamura, Tatsuya Nakamura
  • Publication number: 20150227237
    Abstract: A touch screen according to the present invention includes a transparent substrate, a first detection electrode formed on the transparent substrate, a second detection electrode disposed to sterically cross the first detection electrode via an interlayer insulating film, and a polarizing plate bonded to cover the second detection electrode. Each of the first detection electrode and the second detection electrode includes, as a repetition unit, thin wire electrodes that incline in different directions and cross each other. The thin wire electrodes are formed of a combination of a plurality of conductive thin wires extending in a direction inclined 10 degrees or less from a transmission axis direction or an absorption axis direction of the polarizing plate.
    Type: Application
    Filed: January 23, 2015
    Publication date: August 13, 2015
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Takeshi ONO, Tatsuya NAKAMURA, Takuji IMAMURA, Takashi MIYAYAMA, Tae ORITA, Masafumi AGARI, Naoki NAKAGAWA
  • Publication number: 20150116262
    Abstract: In an intersecting region of a bundle of wirings in a column direction and a bundle of wirings in a row direction, a column wiring block region arranged with detection column wirings and first floating wirings and a row wiring block region arranged with detection row wirings and second floating wirings are disposed in a staggered manner. The bundle of wirings in the column direction includes a first compensation region arranged with the detection column wirings which connect between the detection column wirings in the column wiring block regions adjacent to each other in a diagonal direction. The bundle of wirings in the row direction includes a second compensation region arranged with the detection row wirings which electrically connect between the detection row wirings in the row wiring block regions adjacent to each other in a diagonal direction.
    Type: Application
    Filed: October 1, 2014
    Publication date: April 30, 2015
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Takuji IMAMURA, Takeshi ONO, Tatsuya NAKAMURA, Tae ORITA, Masafumi AGARI, Naoki NAKAGAWA
  • Publication number: 20150002464
    Abstract: Detection column wires and detection row wires are configured of thin wires made of a conductive material having light reflectivity, such as a metal or alloy including silver and aluminum. A predetermined plural number of detection column wires are electrically connected to form a plurality of column-direction bundle wires. A predetermined plural number of detection row wires are electrically connected to form a plurality of row-direction bundle wires. A reflected-light distribution pattern is further provided. When viewed in a direction vertical to the surface of the touch screen, the reflected-light distribution pattern includes a curved portion, and the normal lines of the curved portion head for all directions.
    Type: Application
    Filed: February 21, 2013
    Publication date: January 1, 2015
    Applicant: Mitsubishi Electric Corporation
    Inventors: Takahiro Nishioka, Naoki Nakagawa, Masafumi Agari, Takeshi Ono, Seiichiro Mori
  • Patent number: 8913025
    Abstract: In a touch screen, the number of dummy column block region patterns is made smaller than the number of plurality of detection block region patterns. The plurality of detection block region pattern are obtained as a result of dividing a crossing region where a column direction wire bunch and a row direction wire bunch cross each other. The dummy column block region patterns are obtained as a result of dividing a crossing region where a dummy column direction wire bunch and a row direction wire bunch cross each other.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: December 16, 2014
    Assignee: Mitsubishi Electric Corporation
    Inventors: Takuji Imamura, Tatsuya Nakamura, Seiichiro Mori, Takashi Miyayama, Masafumi Agari, Naoki Nakagawa, Takeshi Ono
  • Publication number: 20140291301
    Abstract: A welding method for an outer joint member of a constant velocity universal joint includes constructing a cup section having track grooves, which engage with torque transmitting elements, formed along an inner periphery thereof and a shaft section that is formed on a bottom portion of the cup section by two or more separate members, joining a cup member forming the cup section and a shaft member forming the shaft section, and melt-welding end portions of the cup member and the shaft member. The cup member and the shaft member are shaped so that a sealed hollow cavity portion is formed when the end portions of the cup member and the shaft member are brought into abutment against each other, the melt-welding of the end portions being performed when the sealed hollow cavity portion is under atmospheric pressure or lower.
    Type: Application
    Filed: October 19, 2012
    Publication date: October 2, 2014
    Applicant: NTN CORPORATION
    Inventors: Masahiro Tosaji, Naoki Nakagawa
  • Publication number: 20140152916
    Abstract: A touchscreen of the present invention is covered by wiring patterns of a row-directional line and a column-directional line being upper and lower two layers. A step height that is produced by an upper electrode riding on a lower electrode when a floating electrode is provided at a region adjacent to the row-directional line and the column-directional line is suppressed.
    Type: Application
    Filed: December 2, 2013
    Publication date: June 5, 2014
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Tatsuya NAKAMURA, Takuji IMAMURA, Takeshi ONO, Naoki NAKAGAWA, Masafumi AGARI, Seiichiro MORI, Takashi MIYAYAMA
  • Patent number: 8657456
    Abstract: A display device where concentration of a stress in a display panel is suppressed, to allow improvement in display quality, reliability and the like. A display device includes a display panel, an adhesive layer and a supporting substrate. The adhesive layer is provided on the display panel. The supporting substrate is made up of a member previously provided with curved surfaces. The display panel is bonded onto the curved surface of the supporting substrate by the adhesive layer. The supporting substrate supports the display panel in a curved form along the curved surface.
    Type: Grant
    Filed: April 23, 2010
    Date of Patent: February 25, 2014
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yusuke Yamagata, Naoki Nakagawa, Toshiaki Fujino, Takanori Okumura, Toshiyuki Yoneda, Toru Kokogawa, Kenji Arita
  • Patent number: 8546804
    Abstract: It is an object to provide a technique to improve electric characteristics after a high-temperature treatment even when a high melting point metal barrier layer is not formed. A semiconductor device includes a gate electrode formed on a transparent insulation substrate, a semiconductor layer having a Si semiconductor active film and an ohmic low resistance Si film having an n-type conductivity, being formed in this order on the gate electrode with a gate insulation film interposed between the gate electrode and the semiconductor layer, and the source and drain electrodes directly connected to the semiconductor layer and containing at least aluminum (Al). At least nitrogen (N) is contained in a first region that is in the vicinity of an interface between a side surface of the SI semiconductor active film and the source and drain electrodes.
    Type: Grant
    Filed: September 14, 2011
    Date of Patent: October 1, 2013
    Assignee: Mitsubishi Electric Corporation
    Inventors: Takeshi Ono, Naoki Nakagawa, Yusuke Yamagata, Kazunori Inoue, Nobuaki Ishiga, Kensuke Nagayama, Naoki Tsumura, Toru Takeguchi
  • Publication number: 20130194232
    Abstract: In a touch screen, the number of dummy column block region patterns is made smaller than the number of plurality of detection block region patterns. The plurality of detection block region pattern are obtained as a result of dividing a crossing region where a column direction wire bunch and a row direction wire bunch cross each other. The dummy column block region patterns are obtained as a result of dividing a crossing region where a dummy column direction wire bunch and a row direction wire bunch cross each other.
    Type: Application
    Filed: January 31, 2013
    Publication date: August 1, 2013
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Takuji IMAMURA, Tatsuya NAKAMURA, Seiichiro MORI, Takashi MIYAYAMA, Masafumi AGARI, Naoki NAKAGAWA, Takeshi ONO
  • Patent number: 8487309
    Abstract: An exemplary aspect of the present invention is a thin film transistor including: a gate electrode formed on a substrate; a gate insulating film that includes a nitride film and covers the gate electrode; and a semiconductor layer that is disposed to be opposed to the gate electrode with the gate insulating film interposed therebetween, and has a microcrystalline semiconductor layer formed in at least an interface in contact with the nitride film, in which the microcrystalline semiconductor layer contains oxygen at a concentration higher than that of contained nitrogen in at least the vicinity of the interface with the nitride film, the nitrogen being diffused from the nitride film.
    Type: Grant
    Filed: January 20, 2011
    Date of Patent: July 16, 2013
    Assignee: Mitsubishi Electric Corporation
    Inventors: Koji Oda, Tomoyuki Irizumi, Naoki Nakagawa, Takeshi Ono