Patents by Inventor Yasuo Ohta

Yasuo Ohta 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: 20090235520
    Abstract: A non-aqueous electrolyte secondary cell including: a cathode containing a compound expressed by a general formula AxMyPO4 (wherein A represents an alkali metal and M represents a transition element, which are contained in ranges: 0<x?2 and 1<y?2); an anode containing sintered carbon material prepared by sintering a carbon material capable of doping/dedoping lithium; and a non-aqueous electrolyte solution. This non-aqueous electrolyte secondary cell can exhibit a high temperature storage characteristic and a high capacity.
    Type: Application
    Filed: March 19, 2009
    Publication date: September 24, 2009
    Inventors: Yoshinori Atsumi, Masahiro Yamamoto, Yasuo Ohta
  • Patent number: 7503941
    Abstract: The elastic fabric comprising a cross-linked polyolefin fiber, wherein the fabric has retractions both in warp-wise and weft-wise directions of the fabric of 8% or less after treated by dry heat at 65° C. for 30 minutes is disclosed. Also disclosed is a process for producing an elastic fabric, comprising: retracting a fabric comprising a cross-linked polyolefin fiber while dyeing the fabric, and then stretching or relaxing the fabric at a stretch ratio of 15% or less to finish the fabric with heat-setting. The present invention relates to an elastic fabric having an excellent chemical resistance and an excellent dimensional stability in the form of a product, which is suitably used for sporting fabrics such as swimming suits, leotards and the like, inner fabrics for ladies as well as outer fabrics, for example.
    Type: Grant
    Filed: June 19, 2007
    Date of Patent: March 17, 2009
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Akira Hamano, Akira Nishimoto, Seishyu Hayashi, Yasuo Ohta, Rajen M. Patel, Rona L. Reid, Antonio Batistini
  • Publication number: 20080283406
    Abstract: An additive obtained from the reaction product obtained by reacting glutaraldehyde and at least one type of compound selected from hydrocarbon compounds containing a hydroxyl group, and at least one type of compound selected from amine compounds, as well as a tin or tin alloy plating solution containing this additive.
    Type: Application
    Filed: April 24, 2008
    Publication date: November 20, 2008
    Applicant: Rohm and Haas Electronic Materials LLC
    Inventors: Motoya Shimazu, Yasuo Ohta
  • Publication number: 20080032195
    Abstract: A non-aqueous electrolyte secondary cell including: a cathode containing a compound expressed by a general formula AxMyPO4 (wherein A represents an alkali metal and M represents a transition element, which are contained in ranges: 0<x?2 and 1?y?2); an anode containing sintered carbon material prepared by sintering a carbon material capable of doping/dedoping lithium; and a non-aqueous electrolyte solution. This non-aqueous electrolyte secondary cell can exhibit a high temperature storage characteristic and a high capacity.
    Type: Application
    Filed: April 18, 2007
    Publication date: February 7, 2008
    Applicant: SONY CORPORATION
    Inventors: Yoshinori Atsumi, Masahiro Yamamoto, Yasuo Ohta
  • Publication number: 20070243785
    Abstract: The elastic fabric comprising a cross-linked polyolefin fiber, wherein the fabric has retractions both in warp-wise and weft-wise directions of the fabric of 8% or less after treated by dry heat at 65° C. for 30 minutes is disclosed. Also disclosed is a process for producing an elastic fabric, comprising: retracting a fabric comprising a cross-linked polyolefin fiber while dyeing the fabric, and then stretching or relaxing the fabric at a stretch ratio of 15% or less to finish the fabric with heat-setting. The present invention relates to an elastic fabric having an excellent chemical resistance and an excellent dimensional stability in the form of a product, which is suitably used for sporting fabrics such as swimming suits, leotards and the like, inner fabrics for ladies as well as outer fabrics, for example.
    Type: Application
    Filed: June 19, 2007
    Publication date: October 18, 2007
    Inventors: Akira Hamano, Akira Nishimoto, Seishyu Hayashi, Yasuo Ohta, Rajen Patel, Rona Reid, Antonio Batistini
  • Publication number: 20070148452
    Abstract: PURPOSE: To provide a novel high strength polyethylene multifilament which consists of a plurality of filaments having high strengths and uniform internal structures, and showing a narrow variation in the strengths of the monofilaments, and which has been difficult to be provided by the conventional gel spinning method. SOLUTION: A high strength polyethylene multifilament consisting of a plurality of filaments which are characterized in that the crystal size of monoclinic crystal is 9 nm or less; the stress Raman shift factor is ?5.0 cm?1/(cN/dTex) or more; the average strength is 20 CN/dTex or higher; the knot strength retention of each monofilament is 40% or higher; CV indicating a variation in the strengths of the monofilaments is 25% or lower; the elongation at break is from 2.5% inclusive to 6.0% inclusive; the fineness of each filament is 10 dTex or less; and the melting point of the filaments is 145° C. or higher.
    Type: Application
    Filed: March 12, 2004
    Publication date: June 28, 2007
    Inventors: Godo Sakamoto, Tooru Kitagawa, Yasuo Ohta, Yasunori Fukushima, Hiroki Murase
  • Publication number: 20060270294
    Abstract: The elastic fabric comprising a crosslinked polyolefin fiber, wherein the fabric has retractions both in warpwise and weftwise directions of the fabric of 8% or less after treated by dry heat at 65° C. for 30 minutes is disclosed. Also disclosed is a process for producing an elastic fabric, comprising: retracting a fabric comprising a crosslinked polyolefin fiber while dyeing the fabric, and then stretching or relaxing the fabric at a streth ratio of 15% or less to finish the fabric with heat-setting. The present invention relates to an elastic fabric having an excellent chemical resistance and an excellent dimensional stability in the form of a product, which is suitably used for sporting fabrics such as swimming suits, leotards and the like, inner fabrics for ladies as well as outer fabrics, for example.
    Type: Application
    Filed: July 17, 2003
    Publication date: November 30, 2006
    Inventors: Akira Hamano, Akira Nishimoto, Seishyu Hayashi, Yasuo Ohta, Rajen Patel, Rona Reid, Antonio Batistini
  • Patent number: 7141301
    Abstract: A high strength polyethylene filament, wherein said filament has a fineness of 1.5 dtex or less as a monofilament, a tensile strength of 15 cN/dtex or more and a tensile elastic modulus of 300 cN/dtex or more, and, the rate of dispersion-defective fibers cut from the filament is 2% or less, is disclosed, and a high strength polyethylene filament, wherein said filament has a tensile strength of 15 cN/dtex or more and a tensile elastic modulus of 300 cN/dtex or more, and, a long period structure of 100 ? or less is observed in an X-ray small angle scattering pattern is disclosed.
    Type: Grant
    Filed: April 15, 2005
    Date of Patent: November 28, 2006
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Godo Sakamoto, Tooru Kitagawa, Syoji Oda, Yasuo Ohta
  • Publication number: 20050238875
    Abstract: A high strength polyethylene filament, wherein said filament has a fineness of 1.5 dtex or less as a monofilament, a tensile strength of 15 cN/dtex or more and a tensile elastic modulus of 300 cN/dtex or more, and, the rate of dispersion-defective fibers cut from the filament is 2% or less, is disclosed, and a high strength polyethylene filament, wherein said filament has a tensile strength of 15 cN/dtex or more and a tensile elastic modulus of 300 cN/dtex or more, and, a long period structure of 100 ? or less is observed in an X-ray small angle scattering pattern is disclosed.
    Type: Application
    Filed: April 15, 2005
    Publication date: October 27, 2005
    Applicant: Toyo Boseki Kabushiki Kaisha
    Inventors: Godo Sakamoto, Tooru Kitagawa, Syoji Oda, Yasuo Ohta
  • Patent number: 6958187
    Abstract: High strength polyethylene fibers and their applications, for example, chopped fibers, ropes, nets, ballistic materials or items, protective gloves, fiber reinforced concrete products, helmets, and other products obtained therefrom, in which the fiber is characterized in that: it contains a high molecular weight polyethylene consisting essentially of a repeating unit of ethylene; it has an intrinsic viscosity number of 5 or larger and an average strength of 22 cN/dtex or higher; and the measurement of the fiber by differential scanning calorimetry (DSC) exhibits a temperature-increasing DCS curve having at least one endothermic peak over a temperature region of 140° C. to 148° C. (on the low temperature side) and at least one endothermic peak over a temperature region of 148° C.
    Type: Grant
    Filed: April 2, 2003
    Date of Patent: October 25, 2005
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Yasuo Ohta, Godo Sakamoto, Tadayo Miyasaka, Takayoshi Okano, Junichi Nakahashi, Yukihiro Nomura, Takuya Konishi
  • Patent number: 6899950
    Abstract: A high strength polyethylene filament, wherein said filament has a fineness of 1.5 dtex or less as a monofilament, a tensile strength of 15 cN/dtex or more and a tensile elastic modulus of 300 cN/dtex or more, and, the rate of dispersion-defective fibers cut from the filament is 2% or less, is disclosed, and a high strength polyethylene filament, wherein said filament has a tensile strength of 15 cN/dtex or more and a tensile elastic modulus of 300 cN/dtex or more, and, a long period structure of 100 ? or less is observed in an X-ray small angle scattering pattern is disclosed.
    Type: Grant
    Filed: December 7, 2001
    Date of Patent: May 31, 2005
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Godo Sakamoto, Tooru Kitagawa, Syoji Oda, Yasuo Ohta
  • Publication number: 20050053835
    Abstract: A non-aqueous electrolyte secondary cell including: a cathode containing a compound expressed by a general formula AxMyPO4 (wherein A represents an alkali metal and M represents a transition element, which are contained in ranges: 0<x?2 and 1?y?2); an anode containing sintered carbon material prepared by sintering a carbon material capable of doping/dedoping lithium; and a non-aqueous electrolyte solution. This non-aqueous electrolyte secondary cell can exhibit a high temperature storage characteristic and a high capacity.
    Type: Application
    Filed: August 17, 2001
    Publication date: March 10, 2005
    Inventors: Yoshinori Atsumi, Masahiro Yamamoto, Yasuo Ohta
  • Patent number: 6770363
    Abstract: High strength polyethylene fibers and their applications, for example, chopped fibers, ropes, nets, ballistic materials or items, protective gloves, fiber reinforced concrete products, helmets, and other products obtained therefrom, in which the fiber is characterized in that: it contains a high molecular weight polyethylene consisting essentially of a repeating unit of ethylene; it has an intrinsic viscosity number of 5 or larger and an average strength of 22 cN/dtex or higher; and the measurement of the fiber by differential scanning calorimetry (DSC) exhibits a temperature-increasing DCS curve having at least one endothermic peak over a temperature region of 140° C. to 148° C. (on the low temperature side) and at least one endothermic peak over a temperature region of 148° C.
    Type: Grant
    Filed: April 2, 2003
    Date of Patent: August 3, 2004
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Takuya Konishi, Yasuo Ohta, Godo Sakamoto
  • Patent number: 6736886
    Abstract: Electroless gold plating baths and plating methods using these baths are provided. The electroless gold plating bath includes i) water-soluble gold compound, ii) complexing agent that stabilizes gold ions in the plating bath, but does not cause substantial dissolution of nickel, cobalt or palladium in the plating bath, and iii) a polyethyleneimine compound. When a material to be plated is subjected to such a gold plating bath, corrosion of the base metal under the surface of the material to be plated is reduced by controlling the substitution reaction rate immediately after initiation of the reaction, and adhesion between the base metal and deposited gold coating is increased.
    Type: Grant
    Filed: July 2, 2002
    Date of Patent: May 18, 2004
    Assignee: Shipley Company, L.L.C.
    Inventors: Kazuyuki Suda, Yasuo Ohta, Yasushi Takizawa
  • Publication number: 20040062926
    Abstract: A high strength polyethylene filament, wherein said filament has a fineness of 1.5 dtex or less as a monofilament, a tensile strength of 15 cN/dtex or more and a tensile elastic modulus of 300 cN/dtex or more, and, the rate of dispersion-defective fibers cut from the filament is 2% or less, is disclosed, and a high strength polyethylene filament, wherein said filament has a tensile strength of 15 cN/dtex or more and a tensile elastic modulus of 300 cN/dtex or more, and, a long period structure of 100 Å or less is observed in an X-ray small angle scattering pattern is disclosed.
    Type: Application
    Filed: October 15, 2003
    Publication date: April 1, 2004
    Inventors: Godo Sakamoto, Tooru Kitagawa, Syoji Oda, Yasuo Ohta
  • Patent number: 6689462
    Abstract: The invention relates to high-strength polyethylene fibers of mainly ethylene component having an intrinsic viscosity [&eegr;], when fibrous, of no less than 5, and having a strength of no less than 20 g/d and an elasticity modulus of no less than 500 g/d, and, in the measurement of the temperature variance of the dynamic viscoelasticity of the fibers, the &ggr; dispersion loss modulus peak temperature is no greater than −110° C. and the loss tangent (tan &dgr;) is no greater than 0.03.
    Type: Grant
    Filed: May 12, 2003
    Date of Patent: February 10, 2004
    Assignee: DSM N.V.
    Inventors: Yasuo Ohta, Godo Sakamoto
  • Patent number: 6669889
    Abstract: The invention relates to high-strength polyethylene fibers of mainly ethylene component having an intrinsic viscosity [&eegr;], when fibrous, of no less than 5, and having a strength of no less than 20 g/d and an elasticity modulus of no less than 500 g/d, and, in the measurement of the temperature variance of the dynamic viscoelasticity of the fibers, the &ggr; dispersion loss modulus peak temperature is no greater than −110° C. and the loss tangent (tan &dgr;) is no greater than 0.03.
    Type: Grant
    Filed: March 13, 2001
    Date of Patent: December 30, 2003
    Assignee: DSM N.V.
    Inventors: Yasuo Ohta, Godo Sakamoto
  • Publication number: 20030221969
    Abstract: A copper sulfate plating bath is used which contains
    Type: Application
    Filed: May 16, 2003
    Publication date: December 4, 2003
    Inventors: Manabu Tomisaka, Eiichi Ando, Kiyoshi Shimada, Hirotaka Nobata, Tetsuji Oishi, Yusuke Abe, Haruki Sonoda, Yoshihito Tatehaba, Yasuo Ohta, Kazuyuki Suda
  • Publication number: 20030211321
    Abstract: High strength polyethylene fibers and their applications, for example, chopped fibers, ropes, nets, ballistic materials or items, protective gloves, fiber reinforced concrete products, helmets, and other products obtained therefrom, in which the fiber is characterized in that: it contains a high molecular weight polyethylene consisting essentially of a repeating unit of ethylene; it has an intrinsic viscosity number of 5 or larger and an average strength of 22 cN/dtex or higher; and the measurement of the fiber by differential scanning calorimetry (DSC) exhibits a temperature-increasing DCS curve having at least one endothermic peak over a temperature region of 140° C. to 148° C. (on the low temperature side) and at least one endothermic peak over a temperature region of 148° C.
    Type: Application
    Filed: April 2, 2003
    Publication date: November 13, 2003
    Applicant: Toyo Boseki Kabushiki Kaisha
    Inventors: Yasuo Ohta, Godo Sakamoto, Tadayo Miyasaka, Takayoshi Okano, Junichi Nakahashi, Yukihiro Nomura, Takuya Konishi
  • Publication number: 20030207074
    Abstract: High strength polyethylene fibers and their applications, for example, chopped fibers, ropes, nets, ballistic materials or items, protective gloves, fiber reinforced concrete products, helmets, and other products obtained therefrom, in which the fiber is characterized in that: it contains a high molecular weight polyethylene consisting essentially of a repeating unit of ethylene; it has an intrinsic viscosity number of 5 or larger and an average strength of 22 cN/dtex or higher; and the measurement of the fiber by differential scanning calorimetry (DSC) exhibits a temperature-increasing DCS curve having at least one endothermic peak over a temperature region of 140° C. to 148° C. (on the low temperature side) and at least one endothermic peak over a temperature region of 148° C.
    Type: Application
    Filed: April 2, 2003
    Publication date: November 6, 2003
    Applicant: Toyo Boseki Kabushiki Kaisha
    Inventors: Yasuo Ohta, Godo Sakamoto, Tadayo Miyasaka, Takayoshi Okano, Junichi Nakahashi, Yukihiro Nomura, Takuya Konishi