Patents by Inventor Katsuhiko Kato
Katsuhiko Kato 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).
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Publication number: 20030115026Abstract: A product design CAD data reconstruction unit 50 reconstructs product design CAD data used for product evaluation regarding an initial design so as to fulfill restrictive conditions obtained from the product evaluation based on a product structure for the initial design. The reconstructed product design CAD data is stored in a product design CAD data database 90. Upon reception of a corrected design obtained by correcting the initial design, the product design CAD data for the initial design is read from the product design CAAD data database 90, and the product design CAD data is corrected along a design surface of the corrected design.Type: ApplicationFiled: October 10, 2002Publication date: June 19, 2003Inventors: Seigo Kuzumaki, Yoshio Shirai, Takatoshi Negishi, Kazuhiro Miyauchi, Masato Kato, Katsuhiko Kato, Yasushi Okamoto, Shouichi Okumura, Mikio Sato, Yoshiki Konishi, Morio Oba, Koji Sato, Junichi Harada, Shigeharu Ueyama, Koji Eguchi, Goro Takahashi
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Publication number: 20020189990Abstract: In a magnetic filter apparatus in which permanent magnets are arranged to oppose each other with a container therebetween so as to generate a magnetic line of force in a direction substantially orthogonal to the moving direction of the fluid in the interior of the container, while regulating a filter passage time of the fluid in the range of 0.5 to 1.Type: ApplicationFiled: May 13, 2002Publication date: December 19, 2002Inventors: Sachihiro Iida, Kenji Nakagawa, Naoto Ueno, Katsuhiko Kato
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Patent number: 6479152Abstract: Lubricative stainless steel sheet and pipe having a chromate film on at least one of the surfaces of a stainless steel sheet or pipe substrate, the chromate film having an amount of adhered Cr of 5 to 100 mg/m2, and, on the chromate film, a lubricant film obtained by applying, on the chromate film, a water-base coating containing (a) a urethane resin of ether-ester type having a skeleton of bisphenol type, a skeleton of ester, and a carboxyl group, (b) an epoxy resin, and (c) a polyolefin wax, and baking the applied coating, the sum of the amount of the urethane resin of (a) and the epoxy resin of (b) being 70 to 95% by weight of the total solids of the coating, the amount of the polyolefin wax of (c) being 5 to 30% by weight of the total solids of the coating, and the lubricant film having a thickness of 0.5 to 5 micrometers and a Vickers hardness of at least 15. A method of producing a lubricative stainless steel pipe is also disclosed.Type: GrantFiled: November 9, 2000Date of Patent: November 12, 2002Assignee: Nippon Steel CorporationInventors: Yujiro Miyauchi, Itsuro Hiroshige, Isao Anai, Katsuhiko Kato, Toshio Tanoue
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Patent number: 6468467Abstract: In a straight barrel type vacuum refining apparatus, use is made of a combination of: a decarburization method wherein the flow rate of oxygen fed into a vacuum tank and the flow rate of an inert gas fed into the vacuum tank are regulated and, at the same time, the flow rate of oxygen gas blown is reduced at a rate of 0.5 to 12.5 Nm3/h/t/min in a low carbon concentration region having a carbon concentration of not more than the critical carbon concentration; and a vacuum refining apparatus provided with dust accumulation preventing means.Type: GrantFiled: November 14, 2000Date of Patent: October 22, 2002Assignee: Nippon Steel CorporationInventors: Kenichiro Miyamoto, Katsuhiko Kato, Akio Shinkai, Takayuki Kaneyasu, Shinya Kitamura, Hiroyuki Ishimatsu, Hiroshi Sugano, Keiichi Katahira, Ryuzou Hayakawa
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Publication number: 20020148320Abstract: A first arm 2 comprises a movable pulley 18 assembled and fixed in a hand 1, a fixed pulley 16 assembled and fixed in a second arm 3, and a timing belt 22 stretched between the movable pulley 18 and fixed pulley 16. A frame 19 has a plane shape corresponding to a virtual plane region enclosed by the timing belt 22. In the frame 19, a first fixed shaft 21 for rotatably holding the movable pulley 18 and a second fixed shaft 17 extending from the second arm 3 for assembling and fixing the fixed pulley 16 are assembled and fixed. An outer cover 60 is light in weight, and covers the frame 19.Type: ApplicationFiled: April 8, 2002Publication date: October 17, 2002Applicant: AITEC CorporationInventors: Kazuo Kimata, Takao Nakamori, Katsuhiko Kato
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Publication number: 20020012602Abstract: The present invention provides: a fuel tank made of a ferritic stainless steel sheet having long lasting corrosion resistance under the environment of the fuel tank and excellent in formability when fabricating the fuel tank; more specifically, a fuel tank made of a ferritic stainless steel sheet containing 10 to 25 mass % of Cr and having an average r-value of 1.9 or larger, an r-value in-plane anisotropy &Dgr;r of 1.0 or smaller, and a total elongation of 30% or larger, having a plane intensity ratio I(111)/I(100) of 10 or larger, and having lubricant films on the surfaces of the steel sheet and a surface friction coefficient of 0.10 or less.Type: ApplicationFiled: August 6, 2001Publication date: January 31, 2002Inventors: Akihiko Takahashi, Shunji Sakamoto, Yuji Koyama, Katsuhiko Kato, Tadashi Komori, Naoto Ono, Masayuki Abe
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Patent number: 6234738Abstract: In a thin substrate transferring apparatus of this invention, the transfer stroke of a hand of a robot is lengthened and the swivel radius is made small resulting in a more compact apparatus. The apparatus has cassettes, housing a substrate, a robot transferring the substrate, and at least one processing unit. The robot has a vertical swivel arm body swiveling in the vertical direction on a machine bed, and a horizontal swivel arm body having two arm sets swiveling in the horizontal direction on a movable machine bed. The vertical swivel arm body has a first arm and a second arm respectively joined rotatable in the vertical direction and a hand is moved substantially in parallel in the vicinity of the cassettes, or the processing unit, and the horizontal swivel arm body has a first link and a second link and the hand is moved into the cassettes, or the processing unit.Type: GrantFiled: April 8, 1999Date of Patent: May 22, 2001Assignee: MECS CorporationInventors: Kazuo Kimata, Katsuhiko Kato
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Patent number: 6190435Abstract: A method for vacuum decarburization refining of a molten steel includes providing a vacuum tank having a one-legged, straight barrel snorkel as a lower portion of the vacuum tank. The a degree of vacuum in the vacuum tank is regulated at a high carbon concentration region to a value in a range of −35 to −20 in terms of G defined by the following equation (1): G=5.96×10−3×T×ln(P/Pco) (1), wherein Pco=760{10(−13800/T+8.75)}×(% C)/(% Cr) (2), and wherein P<760, T represents molten steel temperature, K, and P represents the degree of vacuum in the vacuum tank, Torr.Type: GrantFiled: August 17, 1998Date of Patent: February 20, 2001Assignee: Nippon Steel CorporationInventors: Kenichiro Miyamoto, Katsuhiko Kato, Akio Shinkai, Takayuki Kaneyasu, Shinya Kitamura, Hiroyuki Ishimatsu, Hiroshi Sugano, Keiichi Katahira, Ryuzou Hayakawa
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Patent number: 5552221Abstract: Described is a method for preparing a polybenzazole filament which comprises extruding a polybenzazole dope filament, drawing the filament across an air gap, coagulating and washing the filament, and drying the filament, characterized in that a solution of a compound selected from the group consisting of ferrocenes, ruthocene, iodide-, cobalt-, and copper-containing compounds, dyes, and mixtures thereof is contacted with a filament subsequent to the washing step and prior to the drying step. This method provides a means to improve the tensile strength retention of damaged polybenzazole filaments following exposure to sunlight.Type: GrantFiled: December 29, 1994Date of Patent: September 3, 1996Assignee: The Dow Chemical CompanyInventors: Ying H. So, Steven J. Martin, Chieh-Chun Chau, Ritchie A. Wessling, Ashish Sen, Katsuhiko Kato, Daniel B. Roitman, Willie E. Rochefort
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Patent number: 5365672Abstract: The method and apparatus for positioning a semiconductor wafer incorporates an X.Y axis drive mechanism for moving a mounting bed with a rotary part mounted on the mounting bed for supporting a wafer horizontally and rotating around the vertical axis. An edge portion distance measuring device optically measures a distance from the center position of the rotary part to the edge portion of the wafer along intervals of a definite angle. A distance and angle calculating device calculates a distance between the center position of the wafer and the rotational center of the rotary part relative to a reference line, and an angle of a line connecting the center position of the wafer and the rotational center of the rotary part with respect to the reference line. A notched portion calculating device calculates a deflection angle of the notched portion of the wafer with respect to the reference line, and a deflection amount calculating device calculates the X.Type: GrantFiled: October 19, 1993Date of Patent: November 22, 1994Assignee: MECS CorporationInventor: Katsuhiko Kato
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Patent number: 5054991Abstract: The wafer positioning apparatus has an X.multidot.Y axis drive mechanism for moving a mounting stock in the X-axis direction and the Y-axis direction in the X.multidot.Y coordinates on the horizontal plane; a wafer inserting section is fixed on the mounting stock and has a space for inserting a wafer horizontally; photosensors are installed at the wafer inserting section and arranged at regular intervals on positions corresponding to peripheral portions of the wafer so as to detect edge portions of the inserted wafer; and a rotary section is arranged at the center of the wafer inserting section to be attached to the center of the rear surface of the inserted wafer by suction. The wafer is held on a hand plate or the like of a separate carrier system and inserted horizontally into the center of the space within the wafer inserting section, and the photosensors act in this state and detect peripheral portions of the wafer, and at the same time the X.multidot.Type: GrantFiled: February 23, 1990Date of Patent: October 8, 1991Assignee: MECS CorporationInventor: Katsuhiko Kato
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Patent number: 4849383Abstract: A novel basic refractory composition is disclosed. This composition has high resistance to calcium silicates such as cement clinkers and slag formed in steelmaking operations. It also has superior resistance to thermal shock and stresses such as load in high temperature. A refractory brick produced from this composition can be used in the firing zone of a rotary kiln and successfully withstands cement firing operations for a significantly longer period than conventional refractory bricks.The basic refractory composition consists of a synthetic calcium zirconate based clinker in combination with raw materials for magnesia; the molar ratio of CaO to ZrO.sub.2 in said clinker is in the range of 0.5-1.1, at least part of said clinker being in the form of particles having a size not smaller than 0.5 mm, ZrO.sub.2 being present in an amount of 4-49 wt % of said composition, the sum of CaO and MgO being 50-95 wt %, and the sum of ZrO.sub.2, CaO and MgO being at least 80 wt %.Type: GrantFiled: December 18, 1987Date of Patent: July 18, 1989Assignee: Mino Yogyo Company, Ltd.Inventors: Fumikazu Tanemura, Toru Honda, Yoshiharu Kajita, Katsuhiko Kato, Keisuke Sakakibara
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Patent number: 4651242Abstract: A magnetic disk apparatus using at least one floating magnetic head which is floated above the surface of a rotating magnetic disk by utilizing dynamic pressure of air caused by the rotation of the magnetic disk, the magnetic disk apparatus comprising, a magnetic head assembly including a magnetic head and a supporting device for supporting the magnetic head to float above the surface of the rotating magnetic disk, the supporting device being provided with a space changing device for changing a space between the magnetic disk surface and the magnetic head, a driver coupled with the space changing device for driving the space changing device, and a controller coupled with the driver for controlling the driving of the space changing device by the driver to change the space between the magnetic head and the magnetic disk surface.Type: GrantFiled: December 20, 1984Date of Patent: March 17, 1987Assignee: Hitachi, Ltd.Inventors: Yoshiyuki Hirano, Yosuke Seo, Toyoji Okuwaki, Katsuhiko Kato, Takashi Tamura
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Patent number: 4266256Abstract: When a composite material comprising a nylon non-woven fabric as a substrate and a paper material for cleaning a magnetic tape which has been stuck onto one surface or both surfaces of said nylon non-woven fabric is used as a ribbon used in a tape cleaning device for cleaning a magnetic tape and/or for cleaning a magnetic converter or a magnetic head for sending a magnetic tape, a decrease in a reproduction output due to static charge can be prevented, the generation of dust and the damage of the tape can be decreased, and a cleaning effect for the magnetic tape and/or the magnetic head can be improved.Type: GrantFiled: June 22, 1978Date of Patent: May 5, 1981Assignee: Hitachi, Ltd.Inventors: Katsuhiko Kato, Tosaku Kojima
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Patent number: 4104259Abstract: A fireproof linear aromatic polyester having a high stability to ultraviolet rays and heat contains a unit of the formula: ##STR1## WHEREIN R.sub.1 and R.sub.2 are each a straight or branched alkylene group having 1 to 5 carbon atoms and n.sub.1 and n.sub.2 are each an integer of from 1 to 4. The addition of an organic pentavalent phosphorus compound may improve the fireproof properties of products prepared from said polyesters.Type: GrantFiled: November 18, 1975Date of Patent: August 1, 1978Assignee: Toyo Boseki Kabushiki KaishaInventors: Yasuo Kato, Tadashi Ikegami, Junichi Harukawa, Katsuhiko Kato
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Patent number: 4046724Abstract: A polyester composition having high fireproofness is obtained by blending a copolymerized polyester comprising a polyalkylene terephthalate containing in the main chain thereof binding units of the formula: ##STR1## (WHEREIN, Y denotes -O-, an alkylidene radical having 1 to 6 carbon atoms or a cycloalkylidene radical having 3 to 6 carbon atoms) with a high molecular weight organic phosphorus compound of the formula: ##STR2## (WHEREIN, R.sub.1 denotes a monovalent hydrocarbon radical of 1 to 18 carbon atoms having or not having one or more substituents, R.sub.2 denotes a divalent hydrocarbon radical of 2 to 20 carbon atoms having or not having one or more substituents, x and z each denote 0 or 1 and n denotes an integer having the value of not less than 3) in an amount corresponding to 0.05 to 1.0% by weight of phosphorus atoms.Type: GrantFiled: December 16, 1974Date of Patent: September 6, 1977Assignee: Toyo Boseki Kabushiki KaishaInventors: Yasuo Kato, Katsuhiko Kato, Masahiro Sugino, Jun Ikegami, Junichi Harukawa