Patents Assigned to Showa Denko Kabushiki Kaisha
  • Patent number: 8622234
    Abstract: A packaging container comprises an openable outer case and a bag for packaging a resin material in the outer case. The bag is partially turned back at fold portions so that part of the bag is turned inside out, and at least part of the out-turned part is fixed as a fixing part to any part other than the bag. The inner surfaces of the bag at the fold portions are placed in contact with each other, forming a contact portion, to seal the resin material. The contact portion is placed in correspondence with an openable part of an opening flap of the outer case.
    Type: Grant
    Filed: February 25, 2008
    Date of Patent: January 7, 2014
    Assignees: Toyota Jidosha Kabushiki Kaisha, Showa Denko Kabushiki Kaisha
    Inventors: Satoshi Koide, Shotaro Itami, Soh Hatakeyama, Hidekazu Kanbara, Shigeki Teruoka
  • Patent number: 8293936
    Abstract: Provided is a method for producing n-propyl acetate capable of suppressing the deterioration of a hydrogenation catalyst to such an extent that the catalyst can be industrially used, for example, in the case where n-propyl acetate is produced by performing a hydrogenation reaction in the presence of the hydrogenation catalyst using, as a raw material liquid, a liquid containing allyl acetate or the like which has been produced from propylene, oxygen and acetic acid and obtained using a purification process such as distillation. In such a method for producing n-propyl acetate, the concentration of a formyl group-containing compound (such as acrolein, propionaldehyde or 2-methylcrotonaldehyde) and the concentration of an acryloyloxy group-containing compound (such as acrylic acid or allyl acrylate) in the raw material liquid are respectively set to 100 ppm by mass or less. As a result, the deterioration of the hydrogenation catalyst can be suppressed to such an extent that the catalyst can be industrially used.
    Type: Grant
    Filed: May 20, 2009
    Date of Patent: October 23, 2012
    Assignee: Showa Denko Kabushiki Kaisha
    Inventors: Shigeru Hatanaka, Masayuki Fujimoto
  • Patent number: 7332628
    Abstract: The process for producing carbonyl fluoride according to the invention is a process for safely and easily producing high-purity carbonyl fluoride having a low content of carbon tetrafluoride, and comprises feeding carbon monoxide and fluorine to a reactor and allowing carbon monoxide to react with fluorine under the conditions of a reactor internal pressure of less than atmospheric pressure.
    Type: Grant
    Filed: March 12, 2004
    Date of Patent: February 19, 2008
    Assignees: National Institute of Advanced Industrial Science and Technology, Asahi Glass Company, Limited, Kanto Denka Kogyo Co., Ltd., Showa Denko Kabushiki Kaisha, Daikin Industries, Ltd., Hitachi Kokusai Electric Inc.
    Inventors: Yuki Mitsui, Taisuke Yonemura, Yutaka Ohira, Akira Sekiya
  • Patent number: 7211836
    Abstract: A high emission intensity group-III nitride semiconductor light-emitting device obtained by eliminating crystal lattice mismatch with substrate crystal and using a gallium nitride phosphide-based light emitting structure having excellent crystallinity. A gallium nitride phosphide-based multilayer light-emitting structure is formed on a substrate via a boron-phosphide (BP)-based buffer layer. The boron phosphide-based buffer layer is preferably grown at a low temperature and rendered amorphous so as to eliminate the lattice mismatch with the substrate crystal. After the amorphous buffer layer is formed, it is gradually converted into a crystalline layer to fabricate a light-emitting device while keeping the lattice match with the gallium nitride phosphide-based light-emitting part.
    Type: Grant
    Filed: January 9, 2004
    Date of Patent: May 1, 2007
    Assignee: Showa Denko Kabushiki Kaisha
    Inventor: Takashi Udagawa
  • Patent number: 7169728
    Abstract: A condensed phosphate containing an alkaline earth metal is caused to be present on the surface of titanium dioxide fine particles, and as a result, the condensed phosphate is firmly coupled with the fine particles and is barely liberated from the surface of the fine particles into a medium such as a binder or a resin. As a result, photo-functional particles exhibiting durability and dispersion stability are obtained. By use of the photo-functional particles, a powder and a slurry exhibiting excellent photo-functional property, durability, dispersion stability, and hydrophilicity are produced. In addition, by use of the powder and slurry, a polymer composition, a coating agent, a photo-functional formed article, and a photo-functional structure are produced.
    Type: Grant
    Filed: September 2, 2004
    Date of Patent: January 30, 2007
    Assignee: Showa Denko Kabushiki Kaisha
    Inventors: Masayuki Sanbayashi, Hiroyuki Hagihara, Jun Tanaka, Yoshinori Ueyoshi
  • Patent number: 7150911
    Abstract: An electrical insulating vapor grown carbon fiber containing a vapor grown carbon fiber having a fiber diameter of 0.01 to 0.5 ?m, wherein the surface thereof is partially or entirely coated with an electrical insulating material and a method of producing thereof is disclosed.
    Type: Grant
    Filed: February 7, 2002
    Date of Patent: December 19, 2006
    Assignee: Showa Denko Kabushiki Kaisha
    Inventors: Toshio Morita, Hitoshi Inoue, Ryuji Yamamoto
  • Patent number: 7132006
    Abstract: An object of the present invention is to provide an antimony-containing niobium sintered body for a capacitor having a small specific leakage current value, an antimony-containing niobium powder for use in the sintered body, and a capacitor using the sintered body. In the present invention, an antimony-containing niobium powder having an antimony content of preferably about 0.1 to about 10 mol % and an average particle size of preferably about 0.2 to about 5 ?m is used. By using this antimony-containing niobium powder, a sintered body and a capacitor are constructed.
    Type: Grant
    Filed: May 20, 2004
    Date of Patent: November 7, 2006
    Assignee: Showa Denko Kabushiki Kaisha
    Inventors: Kazuhiro Omori, Kazumi Naito
  • Patent number: 7091154
    Abstract: A perovskite titanium-containing composite oxide particle having a composition represented by general formula (I), where the specific surface area is about 10 to about 200 m2/g, the specific surface area diameter D1 of primary particles defined by formula (II) is about 10 to about 100 nm, and a D2/D1 ratio of the average particle size D2 of secondary particles to D1 is about 1 to about 10: M(TiO3)??(I) wherein M is at least one of Ca, Sr, Ba, Pb, or Mg, D1=6/?S??(II) wherein ? is the density of the particles, and S is the specific surface area of the particles is disclosed. The present invention has a small particle size and excellent dispersion properties, so that the particle is suitable for application to functional materials.
    Type: Grant
    Filed: August 17, 2004
    Date of Patent: August 15, 2006
    Assignee: Showa Denko Kabushiki Kaisha
    Inventors: Masahiro Ohmori, Akihiko Kotera
  • Patent number: 7087325
    Abstract: The present invention relates to a magnetic recording medium, which has excellent magnetic characteristics. The present invention also relates to a method for producing a magnetic recording medium where a plurality of targets are repeatedly sputtered several times in sequential order to form non-magnetic and magnetic films on a substrate.
    Type: Grant
    Filed: February 11, 2003
    Date of Patent: August 8, 2006
    Assignee: Showa Denko Kabushiki Kaisha
    Inventors: Hiroshi Kanazawa, Hiroshi Sakai, Hiroshi Ohsawa, Kazunori Ohnami
  • Patent number: 7084179
    Abstract: An aqueous dispersion of titanium oxide particles comprising chloride ion, and a Brønsted base other than chloride ion, preferably at least one kind of ion selected from nitrate ion and phosphate ion. Preferably the titanium oxide particles are predominantly comprised of brookite titanium oxide particles. The aqueous titanium oxide dispersion is prepared by hydrolyzed titanium tetrachloride in the presence of at least one kind of a Brønsted acid. A thin film formed from this aqueous titanium oxide dispersion exhibits good photo-catalytic activity, transparency and adhesion to a base material.
    Type: Grant
    Filed: July 29, 2003
    Date of Patent: August 1, 2006
    Assignee: Showa Denko Kabushiki Kaisha
    Inventors: Masahiro Ohmori, Hidenori Nakamura
  • Patent number: 7060205
    Abstract: The present invention relates to a solid electrolytic capacitor comprising a solid electrolyte layer and an electrically conducting layer comprising metallic powder or an electrically conducting layer comprising an electrically conducting carbon layer and a layer formed thereon and comprising metallic powder in which at least one of said layers contains a rubber-like elastic material; a production process thereof; a solid electrolyte for use in the solid electrolytic capacitor; a production process of the solid electrolyte; an electrically conducting paste for use in the solid electrolytic capacitor; and an electrically carbon conducting paste for use in the solid electrolytic capacitor. The solid electrolytic capacitor of the present invention can be made compact and can be endowed with high-capacitance and low-impedance and is excellent in external force-relaxing properties, productivity, heat resistance and moisture resistance, etc.
    Type: Grant
    Filed: May 18, 2004
    Date of Patent: June 13, 2006
    Assignee: Showa Denko Kabushiki Kaisha
    Inventors: Ryuji Monden, Katsuhiko Yamazaki, Atsushi Sakai, Yuji Furuta, Hideki Ohata, Koro Shirane, Hiroshi Konuma
  • Patent number: 7060643
    Abstract: A condensed phosphate containing an alkaline earth metal is caused to be present on the surface of titanium dioxide fine particles, and as a result, the condensed phosphate is firmly coupled with the fine particles and is barely liberated from the surface of the fine particles into a medium such as a binder or a resin. As a result, photo-functional particles exhibiting durability and dispersion stability are obtained. By use of the photo-functional particles, a powder and a slurry exhibiting excellent photo-functional property, durability, dispersion stability, and hydrophilicity are produced. In addition, by use of the powder and slurry, a polymer composition, a coating agent, a photo-functional formed article, and a photo-functional structure are produced.
    Type: Grant
    Filed: December 28, 2001
    Date of Patent: June 13, 2006
    Assignee: Showa Denko Kabushiki Kaisha
    Inventors: Masayuki Sanbayashi, Hiroyuki Hagihara, Jun Tanaka, Yoshinori Ueyoshi
  • Patent number: 7037355
    Abstract: An object of the present invention is to provide a niobium sintered body free of reduction in the CV value, a niobium powder for use in the manufacture of the niobium sintered body, and a capacitor using the niobium sintered body. A niobium powder of the present invention has niobium and tantalum, where the tantalum is present in an amount at most of about 700 ppm by mass. A sintered body and a capacitor each is manufactured using the niobium powder.
    Type: Grant
    Filed: December 9, 2003
    Date of Patent: May 2, 2006
    Assignee: Showa Denko Kabushiki Kaisha
    Inventors: Kazumi Naito, Kazuhiro Omori
  • Patent number: 7037352
    Abstract: By providing an abrasive having a ratio of volume-cumulative (95%) average particle size (D95) to volume-cumulative (50%) average particle size (D50) (D95/D50) falling within a range of 1.2 to 3.0 or an abrasive having a volume-cumulative (95%) average particle size (D95) falling within a range of 0.1-1.5 ?m and containing coarse particles having a size more than 10 times the volume-cumulative (50%) average particle size (D50) in an amount, based on the total mass of all the particles, of 1 mass % or less, there can be provided an abrasive, an abrasive slurry, a method for producing an abrasive, and a polishing method which attain, during accurate polishing of substrates such as electronics substrates, a high removal rate and a high-quality surface; i.e., a surface having a high flatness, low surface roughness, and substantially no microscratches or micropits.
    Type: Grant
    Filed: December 12, 2001
    Date of Patent: May 2, 2006
    Assignee: Showa Denko Kabushiki Kaisha
    Inventors: Katsura Ito, Hiroshi Saegusa, Tomoyuki Masuda, Fumio Imai
  • Patent number: 7034330
    Abstract: A Group-III nitride semiconductor device including a crystal substrate, an electrically conducting Group-III nitride semiconductor (AlXGaYIn1?(X+Y)N: 0?X<1, 0<Y?1 and 0<X+Y?1) crystal layer vapor-phase grown on the crystal substrate, an ohmic electrode and an electrically conducting boron phosphide crystal layer provided between the ohmic electrode and the Group-III nitride semiconductor crystal layer, the ohmic electrode being disposed in contact with the boron phosphide crystal layer. Also disclosed is a method for producing the Group-III nitride semiconductor device, and a light-emitting diode including the Group-III nitride semiconductor device.
    Type: Grant
    Filed: October 21, 2003
    Date of Patent: April 25, 2006
    Assignee: Showa Denko Kabushiki Kaisha
    Inventor: Takashi Udagawa
  • Patent number: 7029768
    Abstract: A food container on which surface titanium oxide particles are fixed, where titanium oxide particles may contain brookite crystals, the material of which the food container is constructed may be stainless steel, and the titanium oxide particles may be bonded using a sintering aid, a binder or both. When the food container is made of glass, satisfactory mechanical strength of the container can be maintained even when the thickness of a wall of the container is reduced. Since titanium oxide particles can be fixed onto a surface of a food container at a temperature as low as 20 to 450° C. by use of a sintering aid, a binder or both thermal deformation of glass forming the food container can be prevented.
    Type: Grant
    Filed: December 9, 1999
    Date of Patent: April 18, 2006
    Assignee: Showa Denko Kabushiki Kaisha
    Inventors: Masahiro Ohmori, Takashi Ohkubo, Masayuki Sanbayashi
  • Patent number: 7029940
    Abstract: Ammonia for use in the manufacture of a GaN-type compound semiconductor, filled in a charging container 18 such that at least a part of the ammonia is liquid and the liquid phase ammonia has a water concentration determined by a Fourier-transform infrared spectroscopy (FT-IR) of 0.5 vol ppm or less, is introduced in the gaseous state into a reaction chamber 11 housing therein a substrate 1, and a layer comprising a GaN-type compound started from this ammonia is formed on the substrate 1.
    Type: Grant
    Filed: April 12, 2004
    Date of Patent: April 18, 2006
    Assignee: Showa Denko Kabushiki Kaisha
    Inventors: Hideki Hayashida, Taizo Ito, Yasuyuki Sakaguchi
  • Patent number: 7030003
    Abstract: A semiconductor device having a silicon single crystal substrate and a boron phosphide semiconductor layer containing boron and phosphorus as constituent elements on a surface of the silicon single crystal substrate is disclosed. The surface of the silicon single crystal substrate is a {111} crystal plane inclined at an angle of 5.0° to 9.0° toward a <110> crystal azimuth.
    Type: Grant
    Filed: March 8, 2004
    Date of Patent: April 18, 2006
    Assignee: Showa Denko Kabushiki Kaisha
    Inventor: Takashi Udagawa
  • Patent number: 7029772
    Abstract: A magnetic recording medium that enables enhancement of squareness ratio and Hn and exhibits excellent noise characteristics and thermal stability is disclosed. A production process for the medium, and a magnetic recording and reproducing apparatus are also disclosed. The magnetic recording medium including a substrate 1, a carbon-containing carbon undercoat film 2 formed thereon, and a perpendicular magnetic film 3, in which most of easy-magnetization axes are oriented vertically with respect to the substrate, formed on the undercoat film. The perpendicular magnetic film is formed through a plurality of sputtering operations using at least one element selected from Pt and Pd and through a plurality of sputtering operations using a Co-containing material.
    Type: Grant
    Filed: September 10, 2001
    Date of Patent: April 18, 2006
    Assignee: Showa Denko Kabushiki Kaisha
    Inventors: Hiroshi Sakai, Tetsuya Osaka
  • Patent number: 7030165
    Abstract: A perovskite titanium-containing composite oxide particle have a composition represented by general formula (I), where the specific surface area is about 10 to about 200 m2/g, the specific surface area diameter D1 of the primary particles defined by formula (II) is about 10 to about 100 nm, and a D2/D1 ratio of the average particle size D2 of secondary particles to D1 is about 1 to about 10: M(TiO3)??(I) wherein M is at least one of Ca, Sr, Ba, Pb, or Mg D1=6/?S??(II) wherein ? is the density of the particles, and S is the specific surface area of the particles is disclosed. The present invention has a small particle size and excellent dispersion properties, so that the particle is suitable for application to functional materials.
    Type: Grant
    Filed: April 2, 2004
    Date of Patent: April 18, 2006
    Assignee: Showa Denko Kabushiki Kaisha
    Inventors: Masahiro Ohmori, Akihiko Kotera