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: 20090235520Abstract: 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: ApplicationFiled: March 19, 2009Publication date: September 24, 2009Inventors: Yoshinori Atsumi, Masahiro Yamamoto, Yasuo Ohta
-
Patent number: 7503941Abstract: 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: GrantFiled: June 19, 2007Date of Patent: March 17, 2009Assignee: Toyo Boseki Kabushiki KaishaInventors: Akira Hamano, Akira Nishimoto, Seishyu Hayashi, Yasuo Ohta, Rajen M. Patel, Rona L. Reid, Antonio Batistini
-
Publication number: 20080283406Abstract: 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: ApplicationFiled: April 24, 2008Publication date: November 20, 2008Applicant: Rohm and Haas Electronic Materials LLCInventors: Motoya Shimazu, Yasuo Ohta
-
Publication number: 20080032195Abstract: 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: ApplicationFiled: April 18, 2007Publication date: February 7, 2008Applicant: SONY CORPORATIONInventors: Yoshinori Atsumi, Masahiro Yamamoto, Yasuo Ohta
-
Publication number: 20070243785Abstract: 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: ApplicationFiled: June 19, 2007Publication date: October 18, 2007Inventors: Akira Hamano, Akira Nishimoto, Seishyu Hayashi, Yasuo Ohta, Rajen Patel, Rona Reid, Antonio Batistini
-
Publication number: 20070148452Abstract: 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: ApplicationFiled: March 12, 2004Publication date: June 28, 2007Inventors: Godo Sakamoto, Tooru Kitagawa, Yasuo Ohta, Yasunori Fukushima, Hiroki Murase
-
Publication number: 20060270294Abstract: 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: ApplicationFiled: July 17, 2003Publication date: November 30, 2006Inventors: Akira Hamano, Akira Nishimoto, Seishyu Hayashi, Yasuo Ohta, Rajen Patel, Rona Reid, Antonio Batistini
-
Patent number: 7141301Abstract: 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: GrantFiled: April 15, 2005Date of Patent: November 28, 2006Assignee: Toyo Boseki Kabushiki KaishaInventors: Godo Sakamoto, Tooru Kitagawa, Syoji Oda, Yasuo Ohta
-
Publication number: 20050238875Abstract: 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: ApplicationFiled: April 15, 2005Publication date: October 27, 2005Applicant: Toyo Boseki Kabushiki KaishaInventors: Godo Sakamoto, Tooru Kitagawa, Syoji Oda, Yasuo Ohta
-
Patent number: 6958187Abstract: 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: GrantFiled: April 2, 2003Date of Patent: October 25, 2005Assignee: Toyo Boseki Kabushiki KaishaInventors: Yasuo Ohta, Godo Sakamoto, Tadayo Miyasaka, Takayoshi Okano, Junichi Nakahashi, Yukihiro Nomura, Takuya Konishi
-
Patent number: 6899950Abstract: 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: GrantFiled: December 7, 2001Date of Patent: May 31, 2005Assignee: Toyo Boseki Kabushiki KaishaInventors: Godo Sakamoto, Tooru Kitagawa, Syoji Oda, Yasuo Ohta
-
Publication number: 20050053835Abstract: 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: ApplicationFiled: August 17, 2001Publication date: March 10, 2005Inventors: Yoshinori Atsumi, Masahiro Yamamoto, Yasuo Ohta
-
Patent number: 6770363Abstract: 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: GrantFiled: April 2, 2003Date of Patent: August 3, 2004Assignee: Toyo Boseki Kabushiki KaishaInventors: Takuya Konishi, Yasuo Ohta, Godo Sakamoto
-
Patent number: 6736886Abstract: 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: GrantFiled: July 2, 2002Date of Patent: May 18, 2004Assignee: Shipley Company, L.L.C.Inventors: Kazuyuki Suda, Yasuo Ohta, Yasushi Takizawa
-
Publication number: 20040062926Abstract: 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: ApplicationFiled: October 15, 2003Publication date: April 1, 2004Inventors: Godo Sakamoto, Tooru Kitagawa, Syoji Oda, Yasuo Ohta
-
Patent number: 6689462Abstract: 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: GrantFiled: May 12, 2003Date of Patent: February 10, 2004Assignee: DSM N.V.Inventors: Yasuo Ohta, Godo Sakamoto
-
Patent number: 6669889Abstract: 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: GrantFiled: March 13, 2001Date of Patent: December 30, 2003Assignee: DSM N.V.Inventors: Yasuo Ohta, Godo Sakamoto
-
Publication number: 20030221969Abstract: A copper sulfate plating bath is used which containsType: ApplicationFiled: May 16, 2003Publication date: December 4, 2003Inventors: Manabu Tomisaka, Eiichi Ando, Kiyoshi Shimada, Hirotaka Nobata, Tetsuji Oishi, Yusuke Abe, Haruki Sonoda, Yoshihito Tatehaba, Yasuo Ohta, Kazuyuki Suda
-
Publication number: 20030211321Abstract: 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: ApplicationFiled: April 2, 2003Publication date: November 13, 2003Applicant: Toyo Boseki Kabushiki KaishaInventors: Yasuo Ohta, Godo Sakamoto, Tadayo Miyasaka, Takayoshi Okano, Junichi Nakahashi, Yukihiro Nomura, Takuya Konishi
-
Publication number: 20030207074Abstract: 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: ApplicationFiled: April 2, 2003Publication date: November 6, 2003Applicant: Toyo Boseki Kabushiki KaishaInventors: Yasuo Ohta, Godo Sakamoto, Tadayo Miyasaka, Takayoshi Okano, Junichi Nakahashi, Yukihiro Nomura, Takuya Konishi