Patents Assigned to Techno Research
  • Patent number: 6074981
    Abstract: Fluorine contained within a photocatalyst layer containing titanium oxide and other metallic oxide semiconductors increases the metallic oxide's photocatalytic activity. The described photocatalyst may be in the form of either film, flake, particulate, or fiber. In addition, it can be used for coating the surface of a base material of various forms, such as sheet, film, flake, particulate, bar, or fiber. When using a base material that has an alkaline-containing glass composition, establishing a fluorine-containing layer, such as a layer of fluorine-containing silicon dioxide and other metallic oxide, between the photocatalyst film and the base material can prevent the deterioration of photocatalytic activity of the photocatalyst layer. The fluorine-containing layer functions as an alkaline barrier that controls the diffusion and migration of alkali metallic ions in the glass fibers, such as Na ions, into the photocatalyst layer.
    Type: Grant
    Filed: April 3, 1998
    Date of Patent: June 13, 2000
    Assignees: Nippon Sheet Glass Co., Ltd., NSG Techno-Research Co., Ltd.
    Inventors: Hiroaki Tada, Koji Shimoda, Toshiya Ito, Akihiko Hattori
  • Patent number: 6066250
    Abstract: A used investment casting wax composition containing a filler and/or a residue after a wax component is removed from the composition is dissolved or dispersed into an organic solvent. The mixture is separated into a dissolved wax fraction and a wax-containing solids fraction. The organic solvent in the dissolved wax fraction is removed to recover a wax component, while the wax component and the organic solvent in the wax-containing solids fraction are removed to recover a crude filler. The crude filler is washed with water and/or an aqueous alkaline solution to recover a high-purity filler. A reclaimed investment casting wax thus obtainable is less degraded by heat.
    Type: Grant
    Filed: November 5, 1998
    Date of Patent: May 23, 2000
    Assignee: Kawasaki Steel Techno-Research Corporation
    Inventor: Tsuneo Kinjo
  • Patent number: 6059881
    Abstract: A coater blade and backing roll combination contains a coater blade having an elastic steel blade with a wear-resistant coating formed thereon. The wear-resistant coating has a hardness greater than that of the elastic steel blade and is provided on an edge of the blade to define a coater surface for contacting with a moving surface of coated paper on the backing roll. The backing roll has a concave outer surface having a curvature corresponding to a quadratic equation and the coater surface has a concave curvature corresponding to the quadratic equation.
    Type: Grant
    Filed: August 4, 1993
    Date of Patent: May 9, 2000
    Assignee: Nomura Techno Research Kabushiki Kaisha
    Inventors: Hirotoshi Nomura, Keiji Nakayama, Hisakazu Takagishi, Tokumi Ikeda
  • Patent number: 5715328
    Abstract: The present invention provides a method and apparatus for accurately diagnosing a state of damage on a wall of a coking chamber of a coke battery. The method includes accurately diagnosing the damage state of the chamber wall by combination of three detection means. The three detection means include means for photographing the wall of the coking chamber of the coke battery, means for detecting the chamber width between chamber walls by laser range finders, and means for detecting the chamber temperature by radiation thermometers. The joints and the brick surfaces of the coke battery is photographed by a CCD camera. The image of the chamber wall is separated into images of the joints and the brick surfaces. The states of the joints and the brick surfaces are separately recognized to accurately detect damage of the joints and damage of the brick surfaces.
    Type: Grant
    Filed: February 12, 1996
    Date of Patent: February 3, 1998
    Assignee: Kawasaki Steel Techno-Research Corporation
    Inventor: Yuji Tsukihara
  • Patent number: 5564196
    Abstract: A roll used for tensioning a canvas belt used to hold paper against a dryer. The roll includes a main cylindrical body formed of steel. A layer formed of a metal harder than steel is disposed over the outer surface of the main body. The metal layer is formed with a channel around its center so as to define two spaced roll end sections of a common diameter. A fluororesin layer is disposed in the metal layer channel and is shaped so as to have an outer surface of a diameter equal to that of the metal layer end sections.
    Type: Grant
    Filed: September 23, 1994
    Date of Patent: October 15, 1996
    Assignee: Nomura Techno Research Kabushiki Kaisha
    Inventors: Hirotoshi Nomura, Keiji Nakayama, Yasushi Kitamura, Hajime Miwa, Tokumi Ikeda
  • Patent number: 5532721
    Abstract: It is an object of the invention to provide a dielectric drum where manufacturing costs can be reduced while keeping pressure resistance high and having an anodic oxidized film with a uniform dielectric characteristic, and also to provide an electrostatic recording device which is inexpensive and provides a high image reliability using the dielectric drum. According to the present invention, a dielectric drum includes an aluminum substrate and a dielectric layer of an anodic oxidized film on the surface of the aluminum substrate. The aluminum substrate is produced by conducting a drawing and hardening treatment M on an aluminum alloy pipe of the 5000 series alloys of the Aluminum Association. Also, the dielectric drum is used to construct an electrostatic recording device.
    Type: Grant
    Filed: March 22, 1995
    Date of Patent: July 2, 1996
    Assignees: Fuji Xerox Co., Ltd., Nippon Light Metal Company, Ltd., Nikkei Techno-Research Co., Ltd.
    Inventors: Kazuo Asano, Koji Masuda, Takuo Kusano, Ken Ebihara
  • Patent number: 5240519
    Abstract: An aluminum alloy consisting of: 1.0-1.5 wt % Si, 0.4-0.9 wt % Cu, 0.2-0.6 wt % Mn, 0.8-1.5 wt % Mg, 0.3-0.9 wt % Cr, 0.03-0.05 wt % Ti, 0.0001-0.01 wt % B, and the balance consisting of Al and unavoidable impurities; the sum of the Mn and Cr contents being not more than 1.2 wt % and the content of Fe as one of the unavoidable impurities being not more than 0.2 wt %. The alloy may further comprise 0.1-0.2 wt % Zr to facilitate the refinement of crystal grains. The alloy has a tensile strength of 40 kgf/mm.sup.2 or more and an elongation of 15% or more when plastically formed, solution-treated and aged to provide the highest strength.
    Type: Grant
    Filed: August 17, 1992
    Date of Patent: August 31, 1993
    Assignees: Nippon Light Metal Company, Ltd., Nikkei Techno-Research
    Inventors: Hajime Kamio, Toru Yamada, Kenji Tsuchiya
  • Patent number: 5219691
    Abstract: An electrophotographic photoreceptor is disclosed, comprising a support having thereon a light reflection preventive layer comprising a porous anodized film and a photosensitive layer in this order, in which a metal is filled in the pores of the porous anodized film. The anodized film prevents appearance of an interference band when the photoreceptor is applied to a laser beam printer.
    Type: Grant
    Filed: September 21, 1990
    Date of Patent: June 15, 1993
    Assignees: Fuji Xerox Co., Ltd., Nippon Light Metal Co., Ltd., Nikkei Techno-Research Co., Ltd.
    Inventors: Yuzuru Fukuda, Shigeru Yagi, Ken Ebihara, Yasunobu Iwata
  • Patent number: 5139332
    Abstract: A standard test specimen for optical emission spectrochemical analysis is prepared by molding into the specimen body finely divided particles consisting essentially of the metal or metal alloy to be analyzed without melting the same and preferably by plastic deformation of such particles. The resultant specimen is homogeneous throughout and stable in quality so that accurate analysis of any of its elements is possible and the suitability of the test material for a given product can be accurately predicted.
    Type: Grant
    Filed: October 2, 1990
    Date of Patent: August 18, 1992
    Assignee: Nikkei Techno-Research Co. Ltd.
    Inventors: Sanji Kitaoka, Susumu Nawata, Hisashi Hori, Katsumi Takahashi
  • Patent number: 5120626
    Abstract: An electrophotographic photoreceptor is disclosed, comprising at least a substrate having thereon a charge transporting layer and a charge generating layer, wherein the charge transporting layer is a porous anodized film which is formed by anodizing a substrate comprising an Al-Mg alloy containing from 2.2 to 5.6% by weight of magnesium and, as impurities, at least one of Mn, Cu, Fe, Si, Cr, and Zn or an Al-Mn alloy containing from 1.0 to 1.5% by weight of manganese and, as impurities, at least one of Cu, Fe, Si, and Zn. And the electrophotographic photoreceptor can be produced by a process comprising subjecting a substrate comprising an Al-Mg alloy containing from 2.2 to 5.6% by weight of magnesium and, as impurities, at least one of Mn, Cu, Fe, Si, Cr, and Zn or an Al-Mn alloy containing from 1.0 to 1.
    Type: Grant
    Filed: September 21, 1990
    Date of Patent: June 9, 1992
    Assignees: Fuji Xerox Co., Ltd., Nippon Light Metal Co., Ltd., Nikkei Techno-Research Co., Ltd.
    Inventors: Yuzuru Fukuda, Shigeru Yagi, Ken Ebihara, Yasunobu Iwata
  • Patent number: 4993200
    Abstract: A sandblaster system employs a blaster head which includes an essentially bowl-shaped blaster hood defining an internal collecting chamber. A blaster nozzle is inserted into the internal collecting chamber of the blaster hood and directed toward a surface to be treated. The blaster nozzle is connected to a source of working abrasive, such as working sand, to inject or discharge the working abrasive via pressurized air onto the surface to be treated. A sucking nozzle is also inserted into the internal collecting chamber of the blaster hood for removing pollutants generated in the blasting operation, such as dust, mine dust, removed rust metal and so forth, along with working abrasive. The sucking nozzle is connected to a vacuum source for inducting the the pollutant and the working abrasive to. On the other hand, the blaster hood is provided with elastic or resilient sealing member on the preripheral edge mating the surface to be treated.
    Type: Grant
    Filed: March 10, 1987
    Date of Patent: February 19, 1991
    Assignees: Kawasaki Steel Techno-Research Corp, Kawatetsu Kisai Kogyo Co., Atsuchi Tekko Co.
    Inventors: Junichi Morioka, Hiromitsu Mouri, Iwao Atsuchi
  • Patent number: 4988648
    Abstract: A ferrite-ceramic composite powder consisting of fine particles of a ceramic material having a ferrite coating firmly bonded to the surface thereof is molten at high temperature and then cooled to produce a material in the form of a solid solution in which the ferrite component and the ceramic component are substantially homogeneously mixed together. Also, the ferrite-ceramic composite powder is mixed with fine particles of a second ceramic material and/or particles of a metal, and the mixture is baked to produce a sintered material.
    Type: Grant
    Filed: October 18, 1988
    Date of Patent: January 29, 1991
    Assignee: Okura Techno-Research Kabushiki Kaisha
    Inventor: Ogura Atsushi
  • Patent number: 4952463
    Abstract: Disclosed is a ferrite-ceramic composite powder consisting of fine particles of a ceramic material having a ferrite coating firmly bonded to the surface thereof. The ferrite-ceramic composite powder is manufactured by the steps of immersing pellets of iron in an aqueous solution of ferric chloride in the presence of a magnetic field thereby turning the ferric chloride solution into an aqueous solution of a complex salt, mixing the complex salt solution with an aqueous solution of ferric chloride containing many fine particles of a ceramic material and agitating the mixture to obtain a composite aqueous solution, mixing an aqueous solution of caustic soda with the composite aqueous solution and agitating the mixture to cause deposition of crystals of a ferrite on the surface of the fine ceramic particles, rinsing the particles, and drying the particles.
    Type: Grant
    Filed: August 26, 1988
    Date of Patent: August 28, 1990
    Assignee: Okura Techno-Research Kabushiki Kaisha (Okura Techno-Research Company Ltd.)
    Inventor: Ogura Atsushi
  • Patent number: 4949773
    Abstract: This invention relates to a production method of a mold for continuous casting comprising the steps of: providing a cooled water path in the mold water cooling mechanism; filling the cooled water path with a wax; making the wax surface uniform; providing a copper or copper alloy stratum on the wax surface by electrolytic plating; removing wax from the cooled water path and uniting the mold water cooling mechanism with the mold as one; and comprising the additional step of providing a copper or nickel plating on the surface on which is provided the cooled water path in the mold water cooling mechanism before depositing wax in the path.
    Type: Grant
    Filed: August 11, 1989
    Date of Patent: August 21, 1990
    Assignee: Techno Research Kabushiki
    Inventors: Hirotoshi Nomura, Tokumi Ikeda
  • Patent number: 4798704
    Abstract: A preheating apparatus of an analysis apparatus for determining the in quantity hydrogen and carbon contained in a sample such as steel is employed to remove moisture adhered to a sample of the steel by spot-heating focused on the sample in a transparent bent tube which is turned one-half in its circumferential direction after completion of its preheating to make it possible for the sample to be transfered by gravity from the bent tube into a graphite crucible in which the sample is fused to extract hydrogen and carbon contained in the sample, so that the thus extracted hydrogen and carbon are determined.
    Type: Grant
    Filed: October 6, 1986
    Date of Patent: January 17, 1989
    Assignee: Kawasaki Steel Techno-Research Corporation
    Inventors: Keiji Saito, Yoshiro Takizawa, Isao Takagi
  • Patent number: 4718992
    Abstract: An aqueous electrolytic solution of a molybdate ion and an oxidizing agent is effective to detect phosphorus segregates in a metallic material, particularly cast steel through electrolysis. Segregated phosphorus can be detected by (a) applying a test sheet against a surface area of the metallic material to be examined for segregation, (b) introducing an aqueous electrolytic solution comprising 0.1 to 20% by weight of a molybdate ion and an oxidizing agent between the metallic material surface area and the sheet, (c) contacting a cathode plate with the sheet, (d) effecting electrolysis with the metallic material made anode, (e) removing the sheet from the metallic material surface, and (f) treating the sheet with a reducing agent.
    Type: Grant
    Filed: August 19, 1986
    Date of Patent: January 12, 1988
    Assignees: Kawasaki Steel Corporation, Kawasaki Steel Techno-Research Corporation
    Inventors: Yoshiko Funahashi, Yoshikazu Kamino, Yasuharu Matsumura, Senichi Harimaya