Patents by Inventor Teruo Shimizu

Teruo Shimizu 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).

  • Patent number: 7361203
    Abstract: A bearing is manufactured by filling iron-based material powder and copper-based material powder in a filling portion of a mold, compacting those material powder so as to form a green compact, and then sintering the green compact. The copper-based material powder contains flat powder particles, the flat powder particles having a large aspect ratio than particles of the iron-based material powder. The coppers-based powder particles segregate on a sliding surface by vibration. The sliding surface of a bearing is covered with copper, and a ratio of iron increases from the sliding surface toward the inside. Since a rotation shaft slides on the sliding surface covered with copper, a frictional coefficient between the rotation shaft and the sliding surface is reduced, thus enabling a smooth rotation thereof. Simultaneously the usage of iron imparts predetermined strength and durability.
    Type: Grant
    Filed: August 4, 2003
    Date of Patent: April 22, 2008
    Assignee: Mitsubishi Materials Corporation
    Inventors: Teruo Shimizu, Tsuneo Maruyama
  • Publication number: 20070258668
    Abstract: To provide a bearing made of a sintered Cu alloy for a recirculation exhaust gas flow rate control valve of an EGR type internal combustion engine, which has a high strength and exhibits excellent abrasion resistance even under a high temperature environment. The bearing for a reciprocating shaft made of an austenitic stainless steel operating the recirculation exhaust gas flow rate control valve of the EGR type internal combustion engine is made of sintered Cu alloy with a composition consisting of, by mass %, Ni: 10 to 30%, Sn: 5 to 12%, C: 3 to 10%, P: 0.1 to 0.9%, and Cu and inevitable impurities as the balance, and having a structure in which free graphite is dispersed and distributed into the base of a Cu—Ni—Sn—P based solid solution.
    Type: Application
    Filed: August 25, 2005
    Publication date: November 8, 2007
    Applicant: MITSUBISHI MATERIALS CORPORATION
    Inventors: Teruo Shimizu, Tauneo Maruyama
  • Publication number: 20070199408
    Abstract: An inner rotor having excellent corrosion resistance, which has an outer gear serving as a component of an internal gear pump, and an outer rotor having excellent corrosion resistance, which has an inner gear engaging with the outer gear. The inner rotor and outer rotor of are made of Cu—Ni-based sintered copper alloy that contains 12 to 50% by mass of Ni, 5 to 20% by mass of Sn, 0.5 to 5% by mass of C, and if necessary, further contains 5 to 20% by mass of Zn, 0.1 to 0.9% by mass of P, and a balance being Cu and inevitable impurities.
    Type: Application
    Filed: March 29, 2005
    Publication date: August 30, 2007
    Applicant: Mitsubishi Materials PMG Corporation
    Inventors: Teruo Shimizu, Tuneo Maruyama
  • Publication number: 20070041672
    Abstract: An oil-impregnated sintered which does not damage rotating shaft and itself and has a high durability even in the case that the rotating shaft is inclined in the bearing by a large shear load applied thereto, and a method of manufacturing an oil-impregnated sintered bearing which exhibits center deviation-suppressing action of the bearing satisfactorily by accurately forming a bearing hole in an intermediate completely sintered are disclosed.
    Type: Application
    Filed: April 1, 2004
    Publication date: February 22, 2007
    Applicant: Mitsubishi Materials Corporation
    Inventors: Tsuneo Maruyama, Teruo Shimizu
  • Publication number: 20060120639
    Abstract: A wear resistant bearing of a motor-type fuel pump includes a sintered body of compacted powders having a blended composition which is composed of 1 to 5% of graphite, 2 to 9% of Cu—P alloy containing 5 to 10% of P, Cu—Ni alloy containing 21 to 26% of Ni, and the balance, in % by weight. The sintered body made of a Cu—Ni based sintering metal has a structure in which pores are dispersed on a basis material of Cu—Ni alloy particles at a porosity within a range of 8 to 18%, and P components and free graphite are distributed on a boundary between the Cu—Ni alloy particles and in the pores, respectively.
    Type: Application
    Filed: April 14, 2004
    Publication date: June 8, 2006
    Applicant: Mitsubishi Materials Corporation
    Inventors: Tsuneo Maruyama, Teruo Shimizu
  • Publication number: 20050265884
    Abstract: A bearing is manufactured by filling iron-based material powder and copper-based material powder in a filling portion of a mold, compacting those material powder so as to for a green compact, and then sintering the green compact. The copper-based material powder contains flat powder particles, the flat powder particles having a large aspect ratio than particles of the iron-based material powder. The coppers-based powder particles segregate on a sliding surface by vibration. The sliding surface of a bearing is covered with copper, and a ratio of iron increases from the sliding surface toward the inside. Since a rotation shaft slides on the sliding surface covered with copper, a frictional coefficient between the rotation shaft and the sliding surface is reduced, thus enabling a smooth rotation thereof. Simultaneously the usage of iron imparts predetermined strength and durability.
    Type: Application
    Filed: August 4, 2003
    Publication date: December 1, 2005
    Applicant: Mitsubishi Materials Corporation
    Inventors: Teruo Shimizu, Tsuneo Maruyama
  • Publication number: 20050255960
    Abstract: There is provided a rotation transmission assembly that can be produced in large quantities and at low cost and has an anti-rotation function and an anti-release function.
    Type: Application
    Filed: August 19, 2003
    Publication date: November 17, 2005
    Inventors: Tsuneo Maruyama, Yuji Aoki, Teruo Shimizu
  • Publication number: 20040211290
    Abstract: A sintered alloy has prolonged life span in a state where it is in contact with pure water. A bearing 5 is made of a Cu-based sintered alloy 51 having excellent corrosion resistance against liquid including sulfur or its compounds. A tetrafluoroethylene resin layer 53 is provided at the external surface of the sintered alloy 51. The Cu-based sintered alloy 51 is covered with a tetrafluoroethylene resin layer 53 having corrosion resistance, so that it is possible to secure high corrosion resistance even when the sintered alloy 51 is in contact with ionized pure water. It is also possible to provide a sintered alloy having prolonged life span while it is in contact with pure water.
    Type: Application
    Filed: March 10, 2004
    Publication date: October 28, 2004
    Applicant: Mitsubishi Materials Corporation
    Inventors: Teruo Shimizu, Tsuneo Maruyama
  • Publication number: 20040112172
    Abstract: A sintered alloy that enables the reducing of coefficient of friction and the sealing of pores on a surface thereof and a method of manufacturing the same. A sintered alloy body includes a resin film layer and pores. The pores define a porosity ranging from 2 to 35 volume %, each having an inlet portion and an inside portion, defining a pore inlet diameter and a pore inside diameter respectively. The pore inlet diameter ranges from 10 to 200 &mgr;m, and an average ratio of the pore inlet diameter to the pore inside diameter is at least. Solid lubricant is dispersed in the resin film layer. After forming the layer 3, it is pressed against the sintered alloy body. Thus, the layer enters into the pores to closely contact them, thereby sealing the pores, reducing the coefficient of friction due to the solid lubricant.
    Type: Application
    Filed: September 10, 2003
    Publication date: June 17, 2004
    Applicants: MITSUBISHI MATERIALS CORPORATION, Nihon Parkerizing Co., Ltd.
    Inventors: Teruo Shimizu, Tsuneo Maruyama, Yoshikazu Tanabe, Atsunori Kodama, Motoki Higuchi
  • Publication number: 20040079188
    Abstract: A sintered copper alloy material product is provided on which a skin (particularly, a skin of a solid lubricant with low adhesion, such as PTFE or molybdenum disulfide) is securely formed on the surface thereof and has good sliding properties and good seizure resistance under unlubricating environments or under corrosive environments. A sintered copper alloy material is processed using a selective chemical etching solution containing a compound of one kind or more selected from the group of consisting of peroxide, peroxocompound, chromic acid and permanganic acid and a compound of one kind or more selected from the group of consisting of phosphoric acid, sulfuric acid, nitric acid, hydrochloric acid, hydrofluoric acid, zirconic hydrofluoric acid, titanic hydrofluoric acid, titanic acid, molybdic acid, tungstic acid, vanadic acid, niobic acid, and organic chelating agent. Thereafter, a lubricating skin is on the surface of the processed material.
    Type: Application
    Filed: July 31, 2003
    Publication date: April 29, 2004
    Applicant: NIHON PARKERIZING CO., LTD.,MITSUBISHI MATERIALS CORPORATION
    Inventors: Kazuhiko Mori, Sinnosuke Nakano, Tokunori Kodama, Teruo Shimizu, Tsuneo Maruyama
  • Publication number: 20030143096
    Abstract: A sintered alloy article having superior corrosion resistance while also ensuring product dimensional accuracy is provided. A sintered alloy body is formed by molding and sintering (S2) a raw material powder containing copper, and tin plating (S4) treatment on this sintered alloy body is performed, followed by sizing (S5). When the tin plating layer is compressed during sizing, the tin plating layer is formed to a nearly uniform thickness, pores opened in the outer surface of the sintered alloy body are blocked by the above tin plating, as a result of said tin plating being compressed by the above sizing. Moreover, by combining a copper-based sintered alloy and tin plating, a sintered body is obtained provided with both corrosion resistance to sulfur and its compounds as well as corrosion resistance to formic acid, acetic acid and other organic acids.
    Type: Application
    Filed: January 27, 2003
    Publication date: July 31, 2003
    Inventors: Teruo Shimizu, Tsuneo Maruyama, Hiroaki Takei, Youichi Murakami
  • Patent number: 5348676
    Abstract: A lubricating oil composition comprises a mixture of a first ester of medium-chain saturated fatty acid and glycerol and a second ester of sucrose and carboxylic acid. The composition has improved physical characteristics including high hygienic safety, increased oxidative stability, enhanced lubricating performance, adequate viscosity and other properties required for lubricating particularly food processing machineries and implements.
    Type: Grant
    Filed: May 25, 1993
    Date of Patent: September 20, 1994
    Assignee: Nippon Oil Co., Ltd.
    Inventors: Hiroyuki Takashima, Mitsuo Okada, Teruo Shimizu
  • Patent number: 5346724
    Abstract: An oil and fat composition for food processing machines comprises polyglycerides of medium chain saturated fatty acids and/or mixed polyglycerides of medium chain saturated fatty acids and long chain saturated fatty acids and, optionally, triglycerides of medium chain saturated fatty acids. The composition is safe for food sanitation, has excellent oxidation stability and lubricating property and a suitable degree of viscosity and cloud point as well as a high viscosity and a low temperature fluidity which cannot be attained by MCT and is favorably utilized as lubricating oil for food processing machines and tools and agricultural machines and tools.
    Type: Grant
    Filed: January 5, 1993
    Date of Patent: September 13, 1994
    Assignee: Nippon Oil Company, Ltd.
    Inventors: Ryoji Ohgake, Mitsuo Okada, Hiroyuki Takashima, Teruo Shimizu, Narihito Yamamoto
  • Patent number: 5185091
    Abstract: A greasy oil and fat composition for food processing machines is prepared by mixing a fatty acid ester of polyglycerol, oil and fat for food and glycerol, melting the mixture by heating and kneading the mixture.The greasy oil and fat composition is safe for food sanitation, has excellent oxidation stability and lubricating properties and is favorably utilized as lubricant for food processing machines.
    Type: Grant
    Filed: November 8, 1991
    Date of Patent: February 9, 1993
    Assignee: Nippon Oil Company Limited
    Inventors: Ryoji Ogake, Mitsuo Okada, Hiroyuki Takashima, Teruo Shimizu, Narihito Yamamoto, Hiroyuki Uenoyama
  • Patent number: 5113636
    Abstract: A can lid feeder, for use with a can seamer, has a separator for can lids which projects into a drop hole provided in a cylindrical body at the bottom of a hopper and which separates dropped and stacked can lids one by one from the bottom of the stack. A rotary shaft of the separator extends in a gear box which is supported in the feeder in a freely swingable manner. The gear box is swingable so that the separator can move in the radial direction with respect to the cylindrical body having the drop hole. After a side surface of the swinging gear box has been brought into contact with the outer circumferential surface of the cylindrical body, the gear box is fixed in position by a clamp lever.
    Type: Grant
    Filed: January 23, 1991
    Date of Patent: May 19, 1992
    Assignee: Mitsubishi Jukogyo Kabushiki Kaisha
    Inventors: Hirokata Mihara, Koichi Takagi, Teruo Shimizu, Katsunori Tashiro, Hideo Takahashi
  • Patent number: 4961300
    Abstract: A can seamer for seaming a lid to a can drum filled with liquid and having the lid placed on a top opening includes seaming rolls and a seaming chuck. The time necessary for replacement of the seaming rolls and the seaming chuck, when changing the diameter of the cans to be seamed, is greatly shortened. A seaming lever having the seaming rolls mounted thereon and the seaming chuck are respectively connected to the bottom end portions of a seaming roll shaft and a rotary cylinder via splines or serrations. The seaming lever and the seaming chuck are integrally connected by a connecting bracket.
    Type: Grant
    Filed: December 29, 1988
    Date of Patent: October 9, 1990
    Assignee: Mitsubishi Jukogyo Kabushiki Kaisha
    Inventors: Hirokata Mihara, Koichi Takagi, Teruo Shimizu, Katsunori Tashiro, Hideo Takahashi
  • Patent number: 4644961
    Abstract: A device for manufacturing a filter-tipped cigarette, in which paste coupling paper is wound around a unit comprising two cigarettes laid coaxially with each other and a filter tip interposed between the cigarettes, while the unit is being rotated in a rolling passage defined between a cylindrical drum and a rolling mechanism facing the drum, so that a cigarette having the filter tip and being twice as long as a normal cigarette is made. The rolling mechanism comprises groups of rollers, an endless belt rotatable around the rollers, and a rolling block for supporting the belt to move it near the drum. The mechanism and the drum are in such relative positions that the belt can be moved without being in contact with the drum, when the unit is not supplied onto the drum.
    Type: Grant
    Filed: February 26, 1985
    Date of Patent: February 24, 1987
    Assignee: Japan Tobacco, Inc.
    Inventors: Motonobu Horie, Teruo Shimizu, Kouichiro Obara
  • Patent number: 4139881
    Abstract: A circuit board assembly comprising an electrically insulating circuit board of synthetic resin having at least one surface laminated with conductive sheet. An electric and/or electronic element, such as resistor or capacitor, of a type which has no lead wires extending outwardly therefrom for external electric connection, but which is constituted by a substantially cubic body having its opposite ends applied with respective films of electro-conductive material which serve as terminal electrodes, is mounted on the circuit board with the electrodes soldered to the respective conductive sheets through immersion of said circuit board, particularly laminated surface thereof, into the pool of molten solder. The circuit board has at least one aperture formed adjacent the area where the element is to be positioned for releasing bubbles evolved in the pool of the solder.
    Type: Grant
    Filed: December 16, 1977
    Date of Patent: February 13, 1979
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Teruo Shimizu, Tetsuo Matsuoka
  • Patent number: 4109788
    Abstract: A component container for use in accommodating electric and/or electronic components, such as resistors, capacitors or semi-conductor elements, of a type having no lead wire outwardly extending therefrom, which comprises a casing having a plurality of elongated storage chambers defined therein and extending in parallel relation to each other in a common plane. Each of the storage chambers has a first end opening on one side surface of the casing and a second end opposite to the first end and opening on the other side surface of the casing opposed to the one side surface. The component container further comprises separate barrier members each for providing removably an obstruction to a group of the first or second open ends of the storage chambers to substantially close them with the components accommodated within the storage chambers in respective rows.
    Type: Grant
    Filed: July 15, 1977
    Date of Patent: August 29, 1978
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Fuminori Hirose, Teruo Shimizu
  • Patent number: 4044545
    Abstract: A world clock comprises a cabinet including a front plaque carrying a world map, a time display board slanted to face the viewer for easy reading of the displayed time, a plural pair consisting of a touch pin and a signal light disposed in the neighborhood of each other in the world map and electric circuit means contained in the cabinet for displaying the time at the place of use in the time display board when no touch pin is touched with a finger and displaying the time at a desired district in the time display board and lighting a corresponding signal light at the desired district in the world map. The time display board can be easily exchanged by releasing a simple engagement. The pair consisting of a touch pin and a signal light source may be integrated. From this device one can easily know the time at a desired district in the world simply by touching a touch pin at the desired position in the world map.
    Type: Grant
    Filed: December 1, 1975
    Date of Patent: August 30, 1977
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventor: Teruo Shimizu