Patents by Inventor Takeshi Yao

Takeshi Yao 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: 20140295209
    Abstract: This invention makes it possible to impart bioactivity to a variety of materials by sandblasting to form pores in the surface thereof.
    Type: Application
    Filed: October 16, 2012
    Publication date: October 2, 2014
    Applicant: Kyoto University
    Inventors: Takeshi Yao, Takeshi Yabutsuka
  • Patent number: 8846822
    Abstract: Provided is a curable composition that has low modulus, high elongation and low viscosity, and can be used for building sealing materials. This curable composition includes: an organic polymer (A) containing on average at least 1.4 reactive silyl groups per molecule; and an organic polymer (B) containing on average less than one reactive silyl group per molecule, wherein the number average molecular weight of component (B) is lower than the number average molecular weight of component (A) by at least 3,000, and the ratio (y)/(x) of the number of moles (y) of organic polymers containing only one reactive silyl group per molecule among components (A) and (B) to the number of moles (x) of organic polymers containing at least 2 reactive silyl groups per molecule among components (A) and (B) is not more than 5.
    Type: Grant
    Filed: October 24, 2011
    Date of Patent: September 30, 2014
    Assignee: Kaneka Corporation
    Inventors: Ayako Yano, Takahiro Saito, Takeshi Yao
  • Publication number: 20130281632
    Abstract: Provided is a curable composition that has low modulus, high elongation and low viscosity, and can be used for building sealing materials. This curable composition includes: an organic polymer (A) containing on average at least 1.4 reactive silyl groups per molecule; and an organic polymer (B) containing on average less than one reactive silyl group per molecule, wherein the number average molecular weight of component (B) is lower than the number average molecular weight of component (A) by at least 3,000, and the ratio (y)/(x) of the number of moles (y) of organic polymers containing only one reactive silyl group per molecule among components (A) and (B) to the number of moles (x) of organic polymers containing at least 2 reactive silyl groups per molecule among components (A) and (B) is not more than 5.
    Type: Application
    Filed: October 24, 2011
    Publication date: October 24, 2013
    Applicant: KANEKA CORPORATION
    Inventors: Ayako Yano, Takahiro Saito, Takeshi Yao
  • Patent number: 8512732
    Abstract: An object of the present invention is to provide a method for producing bioactive composites having imparted thereto bioactivity, to thereby form and grow in vivo or in vitro a coating layer containing a calcium phosphate compound as the major component with a high adhesion strength on the surface of various types of porous substrates such as a porous shaped body comprising an organic polymer. The means for solving the problem is characterized by comprising at least (1) a step of immersing a porous substrate in a solution containing at least calcium ions and hydrogenphosphate ions, thereby distributing the solution to the inside of at least a part of the pores of the substrate, and (2) a step of depositing fine particles containing a calcium phosphate compound as the major component inside the pores into which the solution is introduced.
    Type: Grant
    Filed: June 19, 2007
    Date of Patent: August 20, 2013
    Assignee: Kyoto University
    Inventors: Takeshi Yao, Mitsuhiro Hibino, Takeshi Yabutsuka
  • Publication number: 20130011729
    Abstract: In a multiple inorganic compound structure according to the present invention, elements included in a main crystalline phase and elements included in a sub inorganic compound are present in at least a first region and a second region, the first region and the second region each have an area of nano square meter order, the first region is adjacent to the second region, and the first region and the second region each include an element of an identical kind, which element of the identical kind present in the first region has a concentration different from that of the element of the identical kind present in the second region.
    Type: Application
    Filed: July 6, 2012
    Publication date: January 10, 2013
    Inventors: Takeshi Yao, Shogo Esaki
  • Publication number: 20130009088
    Abstract: An multiple inorganic compound structure according to the present invention is a multiple inorganic compound structure including a main crystalline phase, which main crystalline phase contains a sub crystalline phase inside the main crystalline phase, the sub crystalline phase having a non-metallic element arrangement identical to that of the main crystalline phase. A metal element identical to at least one metallic element included in the sub crystalline phase is formed as a solid solution in the main crystalline phase, and its crystal orientation in a main crystalline phase part is identical to that of the sub crystalline phase.
    Type: Application
    Filed: July 5, 2012
    Publication date: January 10, 2013
    Inventors: Takeshi YAO, Shogo Esaki, Motoakl Nishijima
  • Patent number: 8178066
    Abstract: The present invention provides a method for stabilizing fine particles of calcium phosphates without lowering their solid phase forming activity. It is possible to stabilize the fine particles of calcium phosphates by stopping the growth of the fine particles formed in an aqueous solution supersaturated with respect to calcium phosphates. More specifically, the fine particles of calcium phosphates were stabilized by lowering the inorganic ion concentration of a fine-particle-forming solution containing fine particles of calcium phosphates by dialysis, ion exchange, dilution, or the like, or by separating the fine particles of calcium phosphates from the fine-particle-forming solution by filtration, centrifuging, or the like.
    Type: Grant
    Filed: August 15, 2006
    Date of Patent: May 15, 2012
    Assignee: Kyoto University
    Inventors: Takeshi Yao, Mitsuhiro Hibino, Seiji Yamaguchi, Hidetaka Okada
  • Publication number: 20120100431
    Abstract: A cathode active material of the present invention for use in a nonaqueous secondary battery, the cathode active material includes: a main crystalline phase including a lithium-containing transition metal oxide containing manganese and having a spinel structure; and a sub crystalline phase contained in the main crystalline phase, the sub crystalline phase being identical in oxygen arrangement to the lithium-containing transition metal oxide and different in elementary composition from the lithium-containing transition metal oxide, a main crystalline phase part around the sub crystalline phase and the sub crystalline phase having a same crystal orientation.
    Type: Application
    Filed: October 18, 2011
    Publication date: April 26, 2012
    Inventors: Takeshi YAO, Shogo Esaki, Motoaki Nishijima
  • Publication number: 20120040248
    Abstract: A positive active material according to the present invention used in a nonaqueous secondary battery, includes a lithium-containing transition metal oxide containing manganese, as a crystal structure of a main crystalline phase, and a sub oxide and tin (IV) oxide, each of which having an oxygen arrangement identical to that of the lithium-containing transition metal oxide however has a different element composition, the sub oxide and tin (IV) oxide being included in a state in which presence of the sub oxide and tin (IV) oxide is confirmable by diffractometry.
    Type: Application
    Filed: April 26, 2010
    Publication date: February 16, 2012
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Takeshi Yao, Shogo Esaki, Motoaki Nishijima, Mitsuhiro Hibino, Kohei Hiroe
  • Publication number: 20120034527
    Abstract: A cathode active material of the present invention for use in a nonaqueous secondary battery includes: a main crystalline phase including a lithium-containing transition metal oxide containing manganese and having a spinel structure; and a sub crystalline phase which is in a layer shape and which is contained in the main crystalline phase, the sub crystalline phase being identical in oxygen arrangement to the lithium-containing transition metal oxide and different in elementary composition from the lithium-containing transition metal oxide, the main crystalline phase being in an octahedral shape having a plurality of edges, the plurality of edges including a longest edge having a length of not greater than 300 nm.
    Type: Application
    Filed: August 4, 2011
    Publication date: February 9, 2012
    Inventors: Takeshi Yao, Shogo Esaki, Motoaki Nishijima
  • Publication number: 20110281165
    Abstract: A non-aqueous electrolyte secondary battery includes a positive electrode that contains a lithium composite oxide as an active material. The cut-off voltage of charge is set to 4.25 to 4.5 V. In a region where the positive electrode and the negative electrode face each other, the Wp/Wn ratio R is in the range from 1.3 to 19 where Wp is the weight of the active material contained in the positive electrode per unit area and Wn is the weight of the active material contained in the negative electrode per unit area. This battery is excellent in safety, cycle characteristics, and storage characteristics even when the cut-off voltage of charge in a normal operating condition is set to 4.25 V or more.
    Type: Application
    Filed: July 26, 2011
    Publication date: November 17, 2011
    Applicant: Panasonic Corporation
    Inventors: Atsushi UEDA, Shoichiro WATANABE, Takeshi YAO, Takashi TAKEUCHI, Takayuki SHIRANE, Takaya SAITO, Hiromi NAGATA
  • Publication number: 20110168938
    Abstract: An multiple inorganic compound (1) according to the present invention is a multiple inorganic compound (1) including a main crystalline phase (2) including an inorganic compound, the main crystalline phase (2) including a sub crystalline phase (3) having an elementary composition different from that of the main crystalline phase (2) however including a non-metallic element arrangement identical to that of the main crystalline phase 2. Furthermore, each of the main crystalline phase (2) and the sub crystalline phase (3) include at least one metallic element, and the at least one of the metallic element included in the sub crystalline phase (3) is identical to a metallic element included in the main crystalline phase (2), which metallic element identical to that included in the sub crystalline phase is formed as a solid solution in the main crystalline phase (2).
    Type: Application
    Filed: January 6, 2011
    Publication date: July 14, 2011
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Shogo ESAKI, Motoaki NISHIJIMA, Takeshi YAO, Mitsuhiro HIBINO
  • Publication number: 20110171530
    Abstract: A cathode active material (1) of the present invention includes: a main crystalline phase (2) including a lithium-containing transition metal oxide containing manganese and having a spinel structure, and in the cathode active material used in a nonaqueous secondary battery, the main crystalline phase (2) includes a layer-shaped sub crystalline phase (3) which is different in elementary composition from that of the lithium-containing transition metal oxide but having an oxygen arrangement identical to that of the lithium-containing transition metal oxide and which has a spinel structure.
    Type: Application
    Filed: January 6, 2011
    Publication date: July 14, 2011
    Inventors: Shogo ESAKI, Motoaki NISHIJIMA, Takeshi YAO, Mitsuhiro HIBINO, Akira FUJITA
  • Publication number: 20100210736
    Abstract: The present invention provides a method for stabilizing fine particles of calcium phosphates without lowering their solid phase forming activity. It is possible to stabilize the fine particles of calcium phosphates by stopping the growth of the fine particles formed in an aqueous solution supersaturated with respect to calcium phosphates. More specifically, the fine particles of calcium phosphates were stabilized by lowering the inorganic ion concentration of a fine-particle-forming solution containing fine particles of calcium phosphates by dialysis, ion exchange, dilution, or the like, or by separating the fine particles of calcium phosphates from the fine-particle-forming solution by filtration, centrifuging, or the like.
    Type: Application
    Filed: August 15, 2006
    Publication date: August 19, 2010
    Inventors: Takeshi Yao, Mitsuhiro Hibino, Seiji Yamaguchi, Hidetaka Okada
  • Publication number: 20090324673
    Abstract: An object of the present invention is to provide a method for producing bioactive composites having imparted thereto bioactivity, to thereby form and grow in vivo or in vitro a coating layer containing a calcium phosphate compound as the major component with a high adhesion strength on the surface of various types of porous substrates such as a porous shaped body comprising an organic polymer. The means for solving the problem is characterized by comprising at least (1) a step of immersing a porous substrate in a solution containing at least calcium ions and hydrogenphosphate ions, thereby distributing the solution to the inside of at least a part of the pores of the substrate, and (2) a step of depositing fine particles containing a calcium phosphate compound as the major component inside the pores into which the solution is introduced.
    Type: Application
    Filed: June 19, 2007
    Publication date: December 31, 2009
    Applicant: Kyoto University
    Inventors: Takeshi Yao, Mitsuhiro Hibino, Takeshi Yabutsuka
  • Publication number: 20090305143
    Abstract: This invention relates to a non-aqueous electrolyte secondary battery including a positive electrode including a positive electrode mixture, a negative electrode, a separator, and a non-aqueous electrolyte. The positive electrode mixture includes a positive electrode active material, and the positive electrode active material includes a lithium nickel composite oxide. The non-aqueous electrolyte includes a non-aqueous solvent and a lithium salt dissolved in the non-aqueous solvent. The amount of moisture contained in the positive electrode mixture is greater than 1000 ppm and equal to or less than 6000 ppm. By adjusting the amount of moisture contained in the positive electrode mixture in the above range, it is possible to improve the cycle characteristics of the non-aqueous electrolyte secondary battery including the lithium nickel composite oxide as the positive electrode active material.
    Type: Application
    Filed: May 9, 2007
    Publication date: December 10, 2009
    Inventors: Hiroshi Matsuno, Takaharu Morikawa, Akihiro Maeda, Takeshi Yao
  • Publication number: 20090233176
    Abstract: An object of the present invention is to provide a non-aqueous electrolyte secondary battery that is excellent in cycle characteristics even in a high-temperature environment and high in thermal stability. The non-aqueous electrolyte secondary battery of the present invention comprises at least one of an active material A and an active material C, and an active material B as positive electrode active materials. The active material A is LixCoO2 (0.9?x?1.2). The active material B is LixNiyMnzM1-y-zO2 (0.9?x?1.2, 0.1?y?0.5, 0.2?z?0.5, 0.2?1?y?z?0.5 and 0.9?y/z?2.5; and M is at least one selected from the group consisting of Co, Mg, Al, Ti, Sr, Ca, V, Fe, Y, Zr, Mo, Tc, Ru, Ta, W and Re). The active material C is LixCo1-aMaO2 (0.9?x?1.2 and 0.005?a?0.1; and M is at least one selected from the group consisting of Mg, Al, Ti, Sr, Mn, Ni, Ca, V, Fe, Y, Zr, Mo, Tc, Ru, Ta, W, Re, Yb, Cu, Zn and Ba).
    Type: Application
    Filed: December 15, 2006
    Publication date: September 17, 2009
    Inventors: Yosuke Kita, Yukishige Inaba, Kunihiko Mineya, Takeshi Yao
  • Publication number: 20090043030
    Abstract: The present invention has its object to provide a resin composition excellent in mechanical strength and elasticity and further showing only a slight extent of gravity deformation under high temperature conditions. The invention relates to a resin composition which comprises an isobutylene-based polymer (A), an aromatic vinyl-based thermoplastic elastomer (B) comprising a polymer block (b1) the constituent monomer(s) of which is(are) an aromatic vinyl compound(s) and a polymer block (b2) the constituent monomer(s) of which is(are) an aliphatic hydrocarbon compound(s) other than isobutylene, and a filler (C). This composition can be suitably used as, for example, a sealant, in particular as a hot melt sealant for double glazing units, and as a hot melt spacer material for double glazing units.
    Type: Application
    Filed: June 6, 2006
    Publication date: February 12, 2009
    Applicant: KANEKA CORPRATION
    Inventor: Takeshi Yao
  • Publication number: 20080214717
    Abstract: The present invention has its object to provide a resin composition excellent in gas barrier properties, mechanical strength and elasticity and further showing only a slight extent of gravity deformation under high temperature conditions. The invention relates to a resin composition which comprises an isobutylene-based polymer (A), an isobutylene-based block copolymer (B) comprising a polymer block (b1) the constituent monomer(s) of which is(are) an aromatic vinyl compound(s) and a polymer block (b2) the constituent monomer(s) of which is(are) isobutylene, and a filler (C). This composition can be used as a sealant, in particular as a hot melt sealant for double glazing units, and as a hot melt spacer material for double glazing units.
    Type: Application
    Filed: June 6, 2006
    Publication date: September 4, 2008
    Applicant: KANEKA CORPATION
    Inventors: Takeshi Yao, Tohru Nakashima
  • Publication number: 20080118833
    Abstract: A non-aqueous electrolyte secondary battery includes a positive electrode that contains a lithium composite oxide as an active material. The cut-off voltage of charge is set to 4.25 to 4.5 V. In a region where the positive electrode and the negative electrode face each other, the Wp/Wn ratio R is in the range from 1.3 to 19 where Wp is the weight of the active material contained in the positive electrode per unit area and Wn is the weight of the active material contained in the negative electrode per unit area. This battery is excellent in safety, cycle characteristics, and storage characteristics even when the cut-off voltage of charge in a normal operating condition is set to 4.25 V or more.
    Type: Application
    Filed: November 16, 2005
    Publication date: May 22, 2008
    Inventors: Atsushi Ueda, Shoichiro Watanabe, Takeshi Yao, Takashi Takeuchi, Takayuki Shirane, Takaya Saito, Hiromi Nagata