Patents Assigned to Techno Research
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Patent number: 6074981Abstract: 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: GrantFiled: April 3, 1998Date of Patent: June 13, 2000Assignees: Nippon Sheet Glass Co., Ltd., NSG Techno-Research Co., Ltd.Inventors: Hiroaki Tada, Koji Shimoda, Toshiya Ito, Akihiko Hattori
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Patent number: 6066250Abstract: 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: GrantFiled: November 5, 1998Date of Patent: May 23, 2000Assignee: Kawasaki Steel Techno-Research CorporationInventor: Tsuneo Kinjo
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Patent number: 6059881Abstract: 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: GrantFiled: August 4, 1993Date of Patent: May 9, 2000Assignee: Nomura Techno Research Kabushiki KaishaInventors: Hirotoshi Nomura, Keiji Nakayama, Hisakazu Takagishi, Tokumi Ikeda
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Patent number: 5715328Abstract: 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: GrantFiled: February 12, 1996Date of Patent: February 3, 1998Assignee: Kawasaki Steel Techno-Research CorporationInventor: Yuji Tsukihara
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Patent number: 5564196Abstract: 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: GrantFiled: September 23, 1994Date of Patent: October 15, 1996Assignee: Nomura Techno Research Kabushiki KaishaInventors: Hirotoshi Nomura, Keiji Nakayama, Yasushi Kitamura, Hajime Miwa, Tokumi Ikeda
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Patent number: 5532721Abstract: 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: GrantFiled: March 22, 1995Date of Patent: July 2, 1996Assignees: Fuji Xerox Co., Ltd., Nippon Light Metal Company, Ltd., Nikkei Techno-Research Co., Ltd.Inventors: Kazuo Asano, Koji Masuda, Takuo Kusano, Ken Ebihara
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Patent number: 5240519Abstract: 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: GrantFiled: August 17, 1992Date of Patent: August 31, 1993Assignees: Nippon Light Metal Company, Ltd., Nikkei Techno-ResearchInventors: Hajime Kamio, Toru Yamada, Kenji Tsuchiya
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Patent number: 5219691Abstract: 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: GrantFiled: September 21, 1990Date of Patent: June 15, 1993Assignees: Fuji Xerox Co., Ltd., Nippon Light Metal Co., Ltd., Nikkei Techno-Research Co., Ltd.Inventors: Yuzuru Fukuda, Shigeru Yagi, Ken Ebihara, Yasunobu Iwata
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Patent number: 5139332Abstract: 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: GrantFiled: October 2, 1990Date of Patent: August 18, 1992Assignee: Nikkei Techno-Research Co. Ltd.Inventors: Sanji Kitaoka, Susumu Nawata, Hisashi Hori, Katsumi Takahashi
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Patent number: 5120626Abstract: 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: GrantFiled: September 21, 1990Date of Patent: June 9, 1992Assignees: Fuji Xerox Co., Ltd., Nippon Light Metal Co., Ltd., Nikkei Techno-Research Co., Ltd.Inventors: Yuzuru Fukuda, Shigeru Yagi, Ken Ebihara, Yasunobu Iwata
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Patent number: 4993200Abstract: 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: GrantFiled: March 10, 1987Date of Patent: February 19, 1991Assignees: Kawasaki Steel Techno-Research Corp, Kawatetsu Kisai Kogyo Co., Atsuchi Tekko Co.Inventors: Junichi Morioka, Hiromitsu Mouri, Iwao Atsuchi
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Patent number: 4988648Abstract: 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: GrantFiled: October 18, 1988Date of Patent: January 29, 1991Assignee: Okura Techno-Research Kabushiki KaishaInventor: Ogura Atsushi
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Patent number: 4952463Abstract: 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: GrantFiled: August 26, 1988Date of Patent: August 28, 1990Assignee: Okura Techno-Research Kabushiki Kaisha (Okura Techno-Research Company Ltd.)Inventor: Ogura Atsushi
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Patent number: 4949773Abstract: 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: GrantFiled: August 11, 1989Date of Patent: August 21, 1990Assignee: Techno Research KabushikiInventors: Hirotoshi Nomura, Tokumi Ikeda
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Patent number: 4798704Abstract: 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: GrantFiled: October 6, 1986Date of Patent: January 17, 1989Assignee: Kawasaki Steel Techno-Research CorporationInventors: Keiji Saito, Yoshiro Takizawa, Isao Takagi
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Patent number: 4718992Abstract: 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: GrantFiled: August 19, 1986Date of Patent: January 12, 1988Assignees: Kawasaki Steel Corporation, Kawasaki Steel Techno-Research CorporationInventors: Yoshiko Funahashi, Yoshikazu Kamino, Yasuharu Matsumura, Senichi Harimaya