Patents by Inventor Yutaka Ishibashi

Yutaka Ishibashi 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: 20150167740
    Abstract: A single-split cage capable of continuously holding a plurality of rolling elements stably for a long time by eliminating the difference in the strength between split regions, by maintaining the strength of the entire cage uniform in the circumferential direction and by maintaining the dimensional accuracy between the split regions constant at the time of molding and also capable of improving load capacity and achieving low cost for assembly.
    Type: Application
    Filed: February 24, 2015
    Publication date: June 18, 2015
    Applicant: NSK LTD.
    Inventor: Yutaka ISHIBASHI
  • Patent number: 9004775
    Abstract: The present invention provides a single-split cage capable of continuously holding a plurality of rolling elements stably for a long time by eliminating the difference in the strength between split regions, by maintaining the strength of the entire cage uniform in the circumferential direction and by maintaining the dimensional accuracy between the split regions constant at the time of molding and also capable of improving load capacity and achieving low cost for assembly.
    Type: Grant
    Filed: September 13, 2011
    Date of Patent: April 14, 2015
    Assignee: NSK Ltd.
    Inventor: Yutaka Ishibashi
  • Patent number: 8944696
    Abstract: Achieved is a cage for a radial roller bearing that is made by axial draw molding, and that can suppress wear due to friction between the end sections in the axial direction and the guide surfaces of the opposing members, without the assembly direction being restricted, even when guide surfaces of opposing members are not able to support the cage over the entire area of the end surfaces in the axial direction. The cage 7c is composed of a pair of circular ring shaped rim sections 8e, 8f and a plurality of column sections 9, with the spaces between column section 9 that are adjacent in the circumferential direction functioning as pockets 10.
    Type: Grant
    Filed: October 16, 2012
    Date of Patent: February 3, 2015
    Assignee: NSK Ltd.
    Inventor: Yutaka Ishibashi
  • Patent number: 8835241
    Abstract: According to one embodiment, a semiconductor memory device includes a substrate, an upper-layer wire provided on the substrate, a lower-layer wire provided on the substrate, a memory cell located at an intersection of the upper-layer wire and the lower-layer wire and includes a diode and a storage layer, a conductive layer located between the upper-layer wire and the memory cell in a direction perpendicular to the substrate surface, and an interlayer insulating film provided between memory cells. The position of an interface between the upper-layer wire and the interlayer insulating film is lower than a top surface of the conductive layer.
    Type: Grant
    Filed: January 28, 2013
    Date of Patent: September 16, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yutaka Ishibashi, Katsumasa Hayashi, Masahisa Sonoda
  • Patent number: 8791446
    Abstract: According to one embodiment, a semiconductor device includes a substrate and an interconnect region on the substrate. The interconnect region includes a first interconnect having a first contact portion whose plane shape is a ring-like plane shape, a second interconnect disposed below the first interconnect, and a contact electrode passing through the ling-like portion of the first contact portion and electrically connecting the first interconnect and the second interconnect.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: July 29, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Yutaka Ishibashi
  • Patent number: 8740470
    Abstract: A pair of rim portions (4a) and (4b) is formed in the shape of a discontinuous segmental circular ring, which includes cutout portions (8a) and (8b), respectively, at one position. The cutout portions of the respective rim portions are concentrically disposed so as to face each other with a predetermined interval therebetween in an axial direction while having the same phase in a circumferential direction. A plurality of pillar portions (6) form pockets (10) where rollers (14) are retained. An expandable elastic connecting portion (12), which connects one end portion (84a) of one rim portion in the circumferential direction to the other end portion (82b) of the other rim portion in the circumferential direction, is provided at the pair of rim portions.
    Type: Grant
    Filed: September 13, 2011
    Date of Patent: June 3, 2014
    Assignee: NSK Ltd.
    Inventors: Yutaka Ishibashi, Makoto Watanabe, Tetsuya Takahashi
  • Publication number: 20140112609
    Abstract: Achieved is a cage for a radial roller bearing that is made by axial draw molding, and that can suppress wear due to friction between the end sections in the axial direction and the guide surfaces of the opposing members, without the assembly direction being restricted, even when guide surfaces of opposing members are not able to support the cage over the entire area of the end surfaces in the axial direction. The cage 7c is composed of a pair of circular ring shaped rim sections 8e, 8f and a plurality of column sections 9, with the spaces between column section 9 that are adjacent in the circumferential direction functioning as pockets 10.
    Type: Application
    Filed: October 16, 2012
    Publication date: April 24, 2014
    Applicant: NSK Ltd.
    Inventor: Yutaka Ishibashi
  • Publication number: 20140021427
    Abstract: According to one embodiment, a semiconductor device includes a substrate and an interconnect region on the substrate. The interconnect region includes a first interconnect having a first contact portion whose plane shape is a ring-like plane shape, a second interconnect disposed below the first interconnect, and a contact electrode passing through the ling-like portion of the first contact portion and electrically connecting the first interconnect and the second interconnect.
    Type: Application
    Filed: September 27, 2013
    Publication date: January 23, 2014
    Applicant: Kabushiki Kaisha Toshiba
    Inventor: Yutaka ISHIBASHI
  • Publication number: 20130266249
    Abstract: A pair of rim portions 4a and 4b is formed in the shape of a discontinuous segmental circular ring, which includes cutout portions 8a and 8b, respectively, at one position. The cutout portions of the respective rim portions are concentrically disposed so as to face each other with a predetermined interval therebetween in an axial direction while having the same phase in a circumferential direction. A plurality of pillar portions 6 form pockets 10 where rollers 14 are retained. An expandable elastic connecting portion 12, which connects one end portion 84a of one rim portion in the circumferential direction to the other end portion 82b of the other rim portion in the circumferential direction, is provided at the pair of rim portions.
    Type: Application
    Filed: September 13, 2011
    Publication date: October 10, 2013
    Applicant: NSK LTD.,
    Inventors: Yutaka Ishibashi, Makoto Watanabe, Tetsuya Takahashi
  • Publication number: 20130235646
    Abstract: A memory cell array is configured as an arrangement of memory cells disposed at intersections of a plurality of first lines and a plurality of second lines formed so as to intersect one another, each of the memory cells comprising a variable resistance element. A control circuit selectively drives the first lines and the second lines. The variable resistance element is configured by a transition metal oxide film. An electrode connected to the variable resistance element includes a polysilicon electrode configured from polysilicon. A block layer is formed between the polysilicon electrode and the variable resistance element.
    Type: Application
    Filed: August 31, 2012
    Publication date: September 12, 2013
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yasuhiro NOJIRI, Hiroyuki Fukumizu, Katsuyuki Sekine, Yutaka Ishibashi
  • Patent number: 8389970
    Abstract: According to one embodiment, a semiconductor memory device includes a substrate, an upper-layer wire provided on the substrate, a lower-layer wire provided on the substrate, a memory cell located at an intersection of the upper-layer wire and the lower-layer wire and includes a diode and a storage layer, a conductive layer located between the upper-layer wire and the memory cell in a direction perpendicular to the substrate surface, and an interlayer insulating film provided between memory cells. The position of an interface between the upper-layer wire and the interlayer insulating film is lower than a top surface of the conductive layer.
    Type: Grant
    Filed: September 10, 2010
    Date of Patent: March 5, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yutaka Ishibashi, Katsumasa Hayashi, Masahisa Sonoda
  • Publication number: 20120275741
    Abstract: The present invention provides a single-split cage capable of continuously holding a plurality of rolling elements stably for a long time by eliminating the difference in the strength between split regions, by maintaining the strength of the entire cage uniform in the circumferential direction and by maintaining the dimensional accuracy between the split regions constant at the time of molding and also capable of improving load capacity and achieving low cost for assembly.
    Type: Application
    Filed: September 13, 2011
    Publication date: November 1, 2012
    Applicant: NSK LTD.
    Inventor: Yutaka Ishibashi
  • Patent number: 8274809
    Abstract: According to one embodiment, a semiconductor storage device includes a plurality of parallel first interconnects extending in a first direction, a plurality of parallel second interconnects which extend in a second direction perpendicular to the first direction and which make a two-level crossing with respect to the first interconnects, and memory cell structures provided in regions where the first interconnects and the second interconnects make two-level crossings, the memory cell structures being connected on one end to the first interconnects and connected on the other end to the second interconnects, the memory cell structure including a variable resistive element and a non-ohmic element which are connected in series, wherein the endmost first interconnect is disconnected in at least one portion.
    Type: Grant
    Filed: August 12, 2010
    Date of Patent: September 25, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takeshi Murata, Yutaka Ishibashi, Hiroyuki Nitta
  • Publication number: 20110278527
    Abstract: According to one embodiment, a semiconductor device includes a substrate and an interconnect region on the substrate. The interconnect region includes a first interconnect having a first contact portion whose plane shape is a ring-like plane shape, a second interconnect disposed below the first interconnect, and a contact electrode passing through the ling-like portion of the first contact portion and electrically connecting the first interconnect and the second interconnect.
    Type: Application
    Filed: March 3, 2011
    Publication date: November 17, 2011
    Inventor: Yutaka Ishibashi
  • Publication number: 20110144175
    Abstract: When Cyazofamid is formulated in accordance with a conventional formulation method, Cyazofamid is degraded in some cases. The problem to be solved by the present invention is to improve storage stability of the formulation by controlling degradation of Cyazofamid as an agricultural chemical active ingredient. The present invention provides a method for controlling degradation of an agricultural chemical active ingredient, Cyazofamid, which comprises using at least one stabilizer selected from the group consisting of epoxidized animal oil and/or vegetable oil, a nonionic surface active agent of polyoxyethylene, an anionic surface active agent of polyoxyethylene, polyhydric alcohol and a basic substance.
    Type: Application
    Filed: August 19, 2009
    Publication date: June 16, 2011
    Applicant: ISHIHARA SANGYO KAISHA, LTD.
    Inventors: Takeshi Shindo, Hiromi Ohno, Yutaka Ishibashi
  • Publication number: 20110068318
    Abstract: According to one embodiment, a semiconductor memory device includes a substrate, an upper-layer wire provided on the substrate, a lower-layer wire provided on the substrate, a memory cell located at an intersection of the upper-layer wire and the lower-layer wire and includes a diode and a storage layer, a conductive layer located between the upper-layer wire and the memory cell in a direction perpendicular to the substrate surface, and an interlayer insulating film provided between memory cells. The position of an interface between the upper-layer wire and the interlayer insulating film is lower than a top surface of the conductive layer.
    Type: Application
    Filed: September 10, 2010
    Publication date: March 24, 2011
    Inventors: Yutaka ISHIBASHI, Katsumasa Hayashi, Masahisa Sonoda
  • Publication number: 20110038194
    Abstract: According to one embodiment, a semiconductor storage device includes a plurality of parallel first interconnects extending in a first direction, a plurality of parallel second interconnects which extend in a second direction perpendicular to the first direction and which make a two-level crossing with respect to the first interconnects, and memory cell structures provided in regions where the first interconnects and the second interconnects make two-level crossings, the memory cell structures being connected on one end to the first interconnects and connected on the other end to the second interconnects, the memory cell structure including a variable resistive element and a non-ohmic element which are connected in series, wherein the endmost first interconnect is disconnected in at least one portion.
    Type: Application
    Filed: August 12, 2010
    Publication date: February 17, 2011
    Inventors: Takeshi MURATA, Yutaka Ishibashi, Hiroyuki Nitta
  • Patent number: 6635933
    Abstract: Capacitors are formed in the trenches made in an interlayer insulator made of silicon oxide. An insulating film (e.g., a silicon nitride film) is provided on the sides of each trench of the interlayer insulator. A storage electrode made of ruthenium or the like is provided in each trench of the interlayer insulator. A capacitor insulating film made of BSTO or the like is formed on the storage electrode. A plate electrode made of ruthenium or the like is formed on the capacitor insulating film. The plate electrode is common to all capacitors provided. Any two adjacent capacitors are electrically isolated by the interlayer insulator and the insulating film provided on the sides of the trenches of the interlayer insulator.
    Type: Grant
    Filed: September 17, 2001
    Date of Patent: October 21, 2003
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yutaka Ishibashi, Yusuke Kohyama, Tohru Ozaki
  • Publication number: 20020011618
    Abstract: Capacitors are formed in the trenches made in an interlayer insulator made of silicon oxide. An insulating film (e.g., a silicon nitride film) is provided on the sides of each trench of the interlayer insulator. A storage electrode made of ruthenium or the like is provided in each trench of the interlayer insulator. A capacitor insulating film made of BSTO or the like is formed on the storage electrode. A plate electrode made of ruthenium or the like is formed on the capacitor insulating film. The plate electrode is common to all capacitors provided. Any two adjacent capacitors are electrically isolated by the interlayer insulator and the insulating film provided on the sides of the trenches of the interlayer insulator.
    Type: Application
    Filed: September 17, 2001
    Publication date: January 31, 2002
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Yutaka Ishibashi, Yusuke Kohyama, Tohru Ozaki
  • Patent number: 6336296
    Abstract: A floor system includes a plurality of panels placed on a base floor. A space is formed between the panels and the base floor for laying cables. A plurality of sliding plates are arranged on the base floor. A plurality of supports are provided and each support of the plurality of supports is arranged on each of the sliding plates so as to freely slide. The plurality of panels are supported by the plurality of supports by being fixed on a pedestal of the each support of the plurality of supports. The plurality of panels are hence connected to each other to form a single floor surface. The dynamic coefficient of friction between the bottom of the supports and the sliding plates is selected to be a value within a range of 0.09 to 0.25.
    Type: Grant
    Filed: December 28, 1999
    Date of Patent: January 8, 2002
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yutaka Ishibashi, Shigeru Fujimoto, Isako Tsushima, Yoshio Kojima, Junko Oikawa