Patents by Inventor Saburo Moriwaki
Saburo Moriwaki 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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Patent number: 5562151Abstract: Apparatus and method of producing a thin metal ribbon by pouring a molten metal onto the surface of a quench roll rotating at a high speed so as to rapidly cool and solidify the metal to form the ribbon, separating the ribbon from the quench roll and conveying the same to a take-up device. A compressed gas is blown tangent to the quench roll to separate the ribbon from the quench roll. The separated ribbon is sucked and caught by a suction conveyor which runs at a velocity greater than the speed of production of the thin meal ribbon thereby imparting tension to the ribbon.Type: GrantFiled: June 16, 1994Date of Patent: October 8, 1996Assignee: Kawasaki Steel CorporationInventors: Kenji Nakagawa, Nozomu Tamura, Saburo Moriwaki, Kiyoshi Shibuya, Shun Suhara, Kazuyuki Katoh, Toru Sato, Toshitane Matsukawa
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Patent number: 5429655Abstract: An apparatus for removing non-metallic foreign matter in a molten steel includes a tundish and a coil device. The tundish is an intermediate container receiving the molten steel from a ladle and feeding a purified molten steel by removing the non-metallic foreign matter in the molten steel. For removing the non-metallic foreign matter, the tundish has a swirl flow bath and a floatation bath. In the circumference of the swirl flow bath of the tundish, a coil device is arranged for flowing the molten steel in the swirl flow bath in swirl fashion. The tundish and the coil device are formed separately and constructed for relative movement to each other. The molten steel in the swirl flow bath of the tundish is flown in swirl fashion in the horizontal direction by a magnetic field generated by the coil device. At this time, the molten steel forms a parabolic concaved surface.Type: GrantFiled: November 20, 1992Date of Patent: July 4, 1995Assignee: Kawasaki Steel CorporationInventors: Shigeru Ogura, Masayuki Onishi, Hidenari Kitaoka, Mitsuru Sakurai, Toshikazu Sakuraya, Yozo Tanino, Tsukasa Terashima, Yoshiro Tomiyama, Yuki Nabeshima, Yuji Miki, Saburo Moriwaki, Noboru Yasukawa
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Patent number: 5392837Abstract: Apparatus separates a thin metal strip produced from a molten metal from a surface of a cooling roll by rapidly solidifying using a single roll method and conveys and guides the separated thin strip downstream. A separation/tensioning/guiding unit is positioned adjacent the cooling roll to separate tension and guide the rapidly solidified thin strip, which unit includes a cooperating doctor blade in pressure contact with the cooling roll. A suction conveyor is provided downstream of the separation/tensioning/guiding unit.Type: GrantFiled: September 14, 1993Date of Patent: February 28, 1995Assignee: Kawasaki Steel CorporationInventors: Masao Yukumoto, Michiharu Ozawa, Kiyoshi Shibuya, Saburo Moriwaki, Toru Sato
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Patent number: 5381857Abstract: One or more streams of molten metal poured into a continuous casting mold are acted on magnetically by static magnetic fields, covering substantially the entire width of the casting mold, thereby reducing the speed of the molten metal streams from the immersion nozzle, unifying the flow profile of the molten metal in the mold, preventing trapping and accumulating of mold powders and inclusions into the cast products. Magnetic poles are provided which are at least as wide as or wider than the minimum width of the cast products and the iron core is arranged on the same face of the casting mold with mutually opposite polarities in the drawing direction. Even if casting conditions change from time to time, defects in final products made of the cast metal are substantially reduced.Type: GrantFiled: March 3, 1994Date of Patent: January 17, 1995Assignee: Kawasaki Steel CorporationInventors: Hirokazu Tozawa, Shuji Takeuchi, Kenichi Sorimachi, Tetsuya Fujii, Noboru Yasukawa, Saburo Moriwaki, Mitsuru Sakurai, Makoto Aratani, Yoshiro Tomiyama, Takeshi Shiraishi
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Patent number: 5356454Abstract: A mold powder for use in continuous casting, containing specified amounts of CaO, Al.sub.2 O.sub.3, TiO.sub.2, Li.sub.2 O, BaO, MgO, F and Na.sub.2 O, and further containing at least one of BN and C as aggregate. The mold powder, when used in continuous casting of a steel rich in strong reducing metal elements such as Al, Ti, REM and so forth, remarkably suppresses generation of deterioration in the surface quality of the slab and break out of the slab which are attributable inferior lubrication.Type: GrantFiled: July 28, 1993Date of Patent: October 18, 1994Assignee: Kawasaki Steel CorporationInventors: Seiji Itoyama, Hidenari Kitaoka, Toshikazu Sakuraya, Kenichi Sorimachi, Saburo Moriwaki, Sumio Yamada, Chikashi Tada, Takahiro Mitumune, Shinichi Kaneko, Masafumi Maeda
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Patent number: 5311924Abstract: A method and apparatus is provided for stabilizing the molten metal surface in a mold. The invention is used to improve the quality of the casting slab by modifying a controlling parameter according to the detected slab drawing speed and the actual nozzle flowing characteristics calculated by the measured molten metal surface level and the nozzle opening degree.Type: GrantFiled: March 18, 1993Date of Patent: May 17, 1994Assignee: Kawasaki Steel CorporationInventors: Kazuya Asano, Takayuki Kaji, Kazuo Arai, Shuji Tanaka, Michio Ibaraki, Yuki Nabeshima, Hiromitsu Yamanaka, Masaki Takashi, Saburo Moriwaki, Mototatsu Sugizawa, Hiroshi Nomura, Masayuki Onishi
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Patent number: 5127462Abstract: A side wall construction for a continuous belt caster includes a metallic side wall body and a refractory layer attached on the central portion of the side wall body. The metallic side wall body has side edge portion extending substantially in flush with the the surface of the refractory layer. The refractory layer is formed with a center projection of essentially triangular cross-section. The height of the peak of the projection is gradually decreased toward downstream of transfer direction of the liquidus and solidus metal. On the other hand, it may be possible to formulate the refractory layer as double layer construction of a heat insulating refractory layer and a wear-resistantive refractory layer.Type: GrantFiled: May 21, 1991Date of Patent: July 7, 1992Assignee: Kawasaki Steel CorporationInventors: Saburo Moriwaki, Hitoshi Osugi, Masayuki Onishi, Takao Koshikawa, Nagayasu Bessho, Keiichiro Isomura, Takeshi Higashihara, Tomoaki Kimura
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Patent number: 4825935Abstract: In order to securely hold a moving belt of a continuous casting device against selective movable side walls, a first group of rotatable control rods which are disposed in a first supply header and an adjacent exhaust header are arranged to produce narrow high pressure zones in the film defined between the cooling pad in which the header are formed and the moving belt. These zones can be selectively moved to juxtapose the side walls when the gap between the walls is adjusted. A second group of rotatable control rods which are disposed in second and third supply headers selectively heat the side edges of the belt which are relatively cool as compared with the center section which is exposed to molten metal. As the side walls are moved apart the width of the edge sections which are exposed to pre-heated coolant can be reduced and the amount of normal temperature coolant applied thereto also increased.Type: GrantFiled: December 9, 1987Date of Patent: May 2, 1989Assignee: Kawasaki Steel CorporationInventors: Hirokazu Tozawa, Nagayasu Bessho, Tetsuya Fujii, Saburo Moriwaki, Noboru Yasukawa, Tomoaki Kimura
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Patent number: 4759400Abstract: A belt type cast sheet continuous caster of the type comprises a pair of opposed circulatorily movable belts, a pair of opposed side plates arranged along opposite side edge portions of the movable belts, coolers which each have numerous water feed openings and water discharge openings opened to the movable belt and are arranged behind the respective movable belts, and movable partition plates which are placed in respective cooling headers and each connected to driving means for moving the partition plates in a width direction of a cast sheet. A casting space is defined by the movable belt and the side plates.Type: GrantFiled: October 1, 1986Date of Patent: July 26, 1988Assignees: Kawasaki Steel Corporation, Hitachi, Ltd.Inventors: Nagayasu Bessho, Hirokazu Tozawa, Tetsuya Fujii, Tsutomu Nozaki, Saburo Moriwaki, Noboru Yasukawa, Masaaki Kuga, Michio Suzuki, Nozomu Tamura, Tomoaki Kimura
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Patent number: 4067847Abstract: A self-extinguishing resin composition comprises 55 - 25 wt. % of a thermoplastic resin and 45 - 75 wt. % of magnesium hydroxide, wherein said magnesium hydroxide has a specific surface area of less than or equal to 45 m.sup.2 /g. Such a composition is not subject to formation of a silver-colored streak upon being extrusion- or injection-molded.Type: GrantFiled: October 17, 1975Date of Patent: January 10, 1978Assignee: Mitsubishi Petrochemical Co., Ltd.Inventors: Hiroshi Yui, Saburo Moriwaki, Yukihiro Ichikawa, Shigekazu Ohi