Patents by Inventor Seiichi Koike
Seiichi Koike 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: 8419308Abstract: In order to newly provide a folder that facilitates insertion of a document fastener into a narrow slit and that is improved in durability by making use of a property of a document fastener whose folded state can be kept due to resin, the document fastener is so arranged to comprise a plate material (a) made of resin having a body part (11) extending longitudinally and a pair of folded pieces (12) extending from the body part (11), wherein a thickness of both end portions (14) of the plate material (a) is formed to be thinner than a thickness of other portions of the plate material (a), a boundary (13) between the body part (11) and the folded piece (12) is made to be foldable, and the folded state on the boundary (13) can be kept by making use of the properties of the resin itself.Type: GrantFiled: March 20, 2007Date of Patent: April 16, 2013Assignee: Sekisui Seikei, Ltd.Inventors: Seiichi Koike, Yukinori Fukimoto
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Publication number: 20130015280Abstract: Provided is a roller cutter for a shredder having sufficient strength obtained by using a reduced amount of a metallic material. A roller cutter for a shredder is provided with a rotary shaft rotationally driven by a drive mechanism, finely cutting blades each including disks joined together on inside surfaces thereof, the finely cutting blades being successively mounted on and supported by the rotary shaft with the angular phase of each of the blades displaced by a predetermined angle from each other, and shaft fixation members which are fixed to the rotary shaft to thereby fix the finely cutting blades to the rotary shaft under conditions where the members have been mounted at both ends of the finely cutting blades. In this roller cutter, the finely cutting blades have folded parts forming thick-walled portions which go into contact with each other, the folded parts being formed by folding inward the sheet metal material used for forming the disks.Type: ApplicationFiled: March 24, 2011Publication date: January 17, 2013Applicant: KOKUYO CO., LTD.Inventors: Tetsuro Tamaki, Seiichi Koike, Shinji Nakamura, Toru Yoshii
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Publication number: 20100225101Abstract: In order to newly provide a folder that facilitates insertion of a document fastener into a narrow slit and that is improved in durability by making use of a property of a document fastener whose folded state can be kept due to resin, the document fastener is so arranged to comprise a plate material (a) made of resin having a body part (11) extending longitudinally and a pair of folded pieces (12) extending from the body part (11), wherein a thickness of both end portions (14) of the plate material (a) is formed to be thinner than a thickness of other portions of the plate material (a), a boundary(13) between the body part (11) and the folded piece (12) is made to be foldable, and the folded state on the boundary (13) can be kept by making use of the properties of the resin itself.Type: ApplicationFiled: March 20, 2007Publication date: September 9, 2010Inventors: Seiichi Koike, Yukinori Fujimoto
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Publication number: 20100060800Abstract: A receiving apparatus includes a plurality of receivers, each including a variable gain section configured to amplify or attenuate an input signal input thereto with a gain corresponding to an AGC (Automatic Gain Control) signal, and a generator configured to generate an AGC signal in each case when an input signal input to the respective receivers is greater than a predetermined signal level, the AGC signal reducing the gain of the variable gain section in response to a signal level of the input signal. The variable gain section in each of the plurality of receivers amplifies or attenuates the input signal with a gain corresponding to the AGC signal generated by the generator, when the input signal input to the receiver is greater than the predetermined signal level.Type: ApplicationFiled: November 17, 2009Publication date: March 11, 2010Inventor: Seiichi KOIKE
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Patent number: 7575646Abstract: The present invention provides a steel wire, for springs excellent in coiling property while having a high strength, as a heat treated steel wire for high strength springs, characterized by: comprising, in mass, C: 0.75 to 0.85%, Si: 1.5 to 2.5%, Mn: 0.5 to 1.0%, Cr: 0.3 to 1.0%, P: not more than 0.015%, S: not more than 0.015%, N: 0.001 to 0.007%, W: 0.05 to 0.3%, and the balance consisting of Fe and unavoidable impurities; having a tensile strength of not less than 2,000 MPa; spheroidal carbides, composed of mainly cementite, observed in a microscopic visual field satisfying the area percentage of the spheroidal carbides not less than 0.2 ?m in circle equivalent diameter being not more than 7%, the density of the spheroidal carbides 0.2 to 3 ?m in circle equivalent diameter being not more than 1 piece/?m2, and the density of the spheroidal carbides over 3 ?m in circle equivalent diameter being not more than 0.Type: GrantFiled: February 7, 2002Date of Patent: August 18, 2009Assignee: Nippon Steel CorporationInventors: Masayuki Hashimura, Takanari Miyaki, Hiroshi Hagiwara, Hiroaki Hayashi, Shouich Suzuki, Katsuaki Shiiki, Noriyuki Yamada, Seiichi Koike
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Publication number: 20090087682Abstract: To provide a method for producing a quasi-crystalline particle dispersed alloy clad material which can be formed into a thick plate or a member for a structure having a specific shape, in particular, a complicated shape while maintaining quasi-crystalline particles, and can be enhanced in strength when used as a member for a structure, in particular, in strength in a high temperature environment. According to the method for producing a quasi-crystalline particle dispersed alloy clad material 1 of the present invention, a quasi-crystalline particle dispersed alloy clad material 1 is produced by forming a quasi-crystalline particle dispersed alloy containing quasi-crystalline particles dispersed in a matrix, onto a base material 2 by a clad layer forming apparatus 100 at a temperature lower than or equal to a decomposition temperature of the quasi-crystalline particles.Type: ApplicationFiled: March 28, 2008Publication date: April 2, 2009Inventors: Motoki HISHIDA, Masashi Fujita, Seiichi Koike
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Patent number: 7223040Abstract: Two first binding members supported rotatably by a base, which will be fixed to a back cover, and two second binding members, which engage with the front ends of the first binding members to form closed loops, are provided. Spaces between the base sections of the first and second binding members are connected via a first and second connecting plate, respectively. A releasing element is disposed between the respective connecting members, and a force is given by the releasing element in the direction that the closed loops via binding members are released. It is such adapted that, when the first binding members are nipped by fingertips and given an operation force in the direction that the same come closer to each other, the engagement with the second members are released and the front ends can rotate in the direction that the same are opened.Type: GrantFiled: December 24, 2002Date of Patent: May 29, 2007Assignees: Kokuyo Co., Ltd., Kabushikikaisha IzumiseisakushoInventors: Seiichi Koike, Tomoya Ogawa
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Patent number: 6739783Abstract: A binder comprises an operating member supported on a base, a pressing member movable toward and away from the base by the movement of the operating member, and locking means for locking the operating member when the pressing member is set in a binding position. The operating member has a first operating spot and a second operating spot, and the operating member is locked to hold the pressing member at the binding position when the first operating spot is pressed toward the surface of the base, and unlocked to move the pressing member away from the base when the second operating spot is operated similarly.Type: GrantFiled: June 20, 2001Date of Patent: May 25, 2004Assignee: Kokuyo Co., Ltd.Inventors: Takayoshi Higashino, Seiichi Koike, Kenichi Izumi
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Patent number: 6655026Abstract: Material for a connecting rod for an internal combustion engine is carburized and quenched, a carburized layer formed on the bearing portion is ground until the portion which exhibits the maximum compressive residual stress, and a shot-peening processing is performed on the ground surface. The invention produces a bearing portion having surface characteristics in which maximum compressive residual stress is imparted, and therefore, remarkable improvement in the fatigue strength in the bearing portion can be obtained. Furthermore, a large number of concavities formed by the shot-peening processing can be efficiently employed as an oil reservoir, so that sliding properties and lubrication can be improved, and the occurrence of problems such as fretting corrosion, galling, and seize can also be solved, and the galling and problems of the seize can be prevented.Type: GrantFiled: January 24, 2000Date of Patent: December 2, 2003Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Zenji Iida, Mitsuo Takashima, Shigeki Muroga, Seiichi Koike
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Patent number: 6605166Abstract: A high-strength bolt having excellent delayed fracture resistance and stress relaxation resistance in addition to a tensile strength of 1200 N/mm2 or higher is disclosed. A steel material for the high-strength bolt includes C: 0.50 to 1.0% by mass (hereinafter, referred to simply as “%”), Si: 0.5% or less (not including 0%), Mn: 0.2 to 1%, P: 0.03% or less (including 0%) and S: 0.03% or less (including 0%). The steel material has pro-eutectoid ferrite, pro-eutectoid cementite, bainite and martensite structures at less than 20% in total and a pearlite structure as the remainder. The high-strength bolt is produced by drawing the steel material severely to obtain a steel wire, forming the steel wire into a bolt shape through a cold heading, and subjecting the shaped steel wire to a blueing treatment at a temperature within a range of 100 to 400° C.Type: GrantFiled: December 6, 2001Date of Patent: August 12, 2003Assignees: Kabushiki Kaisha Kobe Seiko Sho, Honda Motor Co., Ltd., Saga Tekkohsho Co., Ltd.Inventors: Seiichi Koike, Mitsuo Takashima, Katsuhiro Tsukiyama, Yuichi Namimura, Nobuhiko Ibaraki
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Publication number: 20030123923Abstract: Two first binding members supported rotatably by a base, which will be fixed to a back cover, and two second binding members, which engage with the front ends of the first binding members to form closed loops, are provided. Spaces between the base sections of the first and second binding members are connected via a first and second connecting plate, respectively. A releasing means is disposed between the respective connecting members, and a force is given by the releasing means in the direction that the closed loops via binding members are released. It is such adapted that, when the first binding members are nipped by fingertips and given an operation force in the direction that the same come closer to each other, the engagement with the second members are released and the front ends can rotate in the direction that the same are opened.Type: ApplicationFiled: December 24, 2002Publication date: July 3, 2003Applicant: KOKUYO CO., LTD.Inventors: Seiichi Koike, Tomoya Ogawa
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Publication number: 20020179207Abstract: A high-strength bolt having excellent delayed fracture resistance and stress relaxation resistance in addition to a tensile strength of 1200 N/mm2 or higher is disclosed. A steel material for the high-strength bolt includes C: 0.50 to 1.0% by mass (hereinafter, referred to simply as “%”), Si: 0.5% or less (not including 0%), Mn: 0.2 to 1%, P: 0.03% or less (including 0%) and S: 0.03% or less (including 0%). The steel material has pro-eutectoid ferrite, pro-eutectoid cementite, bainite and martensite structures at less than 20% in total and a pearlite structure as the remainder. The high-strength bolt is produced by drawing the steel material severely to obtain a steel wire, forming the steel wire into a bolt shape through a cold heading, and subjecting the shaped steel wire to a blueing treatment at a temperature within a range of 100 to 400 ° C.Type: ApplicationFiled: December 6, 2001Publication date: December 5, 2002Inventors: Seiichi Koike, Mitsuo Takashima, Katsuhiro Tsukiyama, Yuichi Namimura, Nobuhiko Ibaraki
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Patent number: 6460602Abstract: A metallic mold-casting method excellent in the resistance to penetration is herein disclosed and the method comprises the steps of forming a coating layer by applying a mixture comprising at least one member selected from the group consisting of high melting metals, ceramic materials and graphite, and an aqueous surfactant solution or low boiling liquid oils and fats to at least part of the surface of a metallic mold on its cavity side, then applying heat to the coated portion to thus adhere the mixture to the inner surface of the mold, and thereafter repeatedly casting a magnesium alloy in the metallic mold provided with the coating layer. The metallic mold-casting method permits the metallic mold casting of magnesium alloys with good resistance to penetration and this accordingly leads to the production of a cheap and high quality cast magnesium alloy product.Type: GrantFiled: April 5, 2001Date of Patent: October 8, 2002Assignees: Mitsui Mining and Smelting Co., Ltd., Honda Giken Kogyo Kabushiki KaishaInventors: Kohei Kubota, Yoichi Nosaka, Seiichi Koike, Kazuhiro Washizu, Kazuo Kikawa
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Patent number: 6391124Abstract: A non-heat treated soft-nitrided steel part respective contents of C, Si, Mn, P, Cr, Ti, V, N, Al, Pb, S and Ca of which are in specific ranges and which satisfies the following formulas (1) to (3). This part can be produced in a process of hot working, machining and soft-nitriding without any prior heat treatment, and has superior properties such as high fatigue strength and wear resistance. Fn1=−141.5(C %)−19.6(Mn %)+1280(N %)+95.6≦60 (1) Fn2=−103.8(C %)+59.1(Mn %)+850.4(N %)+360.9≧350 (2) Fn3=−13.4(C %)−3.45(Mn %)+112.7(N %)+13.Type: GrantFiled: October 30, 2000Date of Patent: May 21, 2002Assignees: Sumitomo Metals (Kokura) Ltd., Honda Giken Kogyo Kabushiki KaishaInventors: Hitoshi Matsumoto, Yoshihiko Kamada, Mitsuo Uno, Masato Kurita, Seiichi Koike, Mitsuo Takashima
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Publication number: 20020009326Abstract: A binder comprises an operating member supported on a base, a pressing member movable toward and away from the base by the movement of the operating member, and locking means for locking the operating member when the pressing member is set in a binding position. The operating member has a first operating spot and a second operating spot, and the operating member is locked to hold the pressing member at the binding position when the first operating spot is pressed toward the surface of the base, and unlocked to move the pressing member away from the base when the second operating spot is operated similarly.Type: ApplicationFiled: June 20, 2001Publication date: January 24, 2002Applicant: KOKUYO CO., LTD.Inventors: Takayoshi Higashino, Seiichi Koike, Kenichi Izumi
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Publication number: 20010052406Abstract: A metallic mold-casting method excellent in the resistance to penetration is herein disclosed and the method comprises the steps of forming a coating layer by applying a mixture comprising at least one member selected from the group consisting of high melting metals, ceramic materials and graphite, and an aqueous surfactant solution or low boiling liquid oils and fats to at least part of the surface of a metallic mold on its cavity side, then applying heat to the coated portion to thus adhere the mixture to the inner surface of the mold, and thereafter repeatedly casting a magnesium alloy in the metallic mold provided with the coating layer. The metallic mold-casting method permits the metallic mold casting of magnesium alloys with good resistance to penetration and this accordingly leads to the production of a cheap and high quality cast magnesium alloy product.Type: ApplicationFiled: April 5, 2001Publication date: December 20, 2001Inventors: Kohei Kubota, Yoichi Nosaka, Seiichi Koike, Kazuhiro Washizu, Kazuo Kikawa
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Patent number: 6277217Abstract: An aluminum alloy comprises magnesium in a range of 3.0% by weight≦Mg≦5.5% by weight, manganese in a range of 1.5% by weight≦Mn≦2.0% by weight, nickel in a range of 0.5% by weight≦Ni≦0.9% by weight, and the balance of aluminum including inevitable impurities. Particularly, the Ni content is set in the above range in order to achieve an increase in toughness of a die-cast product. Thus, it is possible to suppress the amount of an intermetallic compound AlMnNi produced and to finely divide the intermetallic compound AlMnNi.Type: GrantFiled: April 13, 1999Date of Patent: August 21, 2001Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Sadafumi Yoshino, Seiichi Koike, Eitarou Koya, Masahiko Nakagawa
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Patent number: 5076866Abstract: A heat resistant slide member for an internal combustion engine is a plastically worked member formed from a quenched and solidified aluminum alloy, with a metal flow line in a sliding portion thereof set in a sliding direction. The aluminum alloy contains at least one selected from the group consisting of Cr, Fe, Zr and Ti in an amount of 5% or more and 30% by weight or less and has an average diameter of precipitates and crystallizates therein of 50 .mu.m or less and a tensile strength at 300.degree. C. of 18 kg/mm.sup.2 or more.Type: GrantFiled: February 20, 1990Date of Patent: December 31, 1991Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Seiichi Koike, Tomoyoshi Matsuno, Hiroyuki Horimura, Masao Ichikawa, Noriaki Matsumoto, Kazunori Fukizawa
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Patent number: 5022918Abstract: A heat-resistant aluminum alloy sinter comprises 5 to 12% by weight of Cr, less than 10% by weight of at least one selected from the group consisting of Co, Ni, Mn, Zr, V, Ce, Fe, Ti, Mo, La, Nb, Y and Hf, and the balance of Al containing unavoidable impurities. A silicon carbide fiber is included for reinforcing the sinter in a fiber volume fraction range of 2 to 30%.Type: GrantFiled: December 1, 1988Date of Patent: June 11, 1991Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Seiichi Koike, Hiroyuki Horimura, Masao Ichikawa, Noriaki Matsumoto
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Patent number: 4955121Abstract: A method for casting a rocker arm made of light alloy for use in an overhead cam shaft type valve operating mechanism of an internal combustion engine, which rocker arm includes a thick-walled bearing section to be fitted on a rocker arm shaft and is integrally provided with a wear-resistive piece having a protrusion on its rear surface and adapted to abut a cam. After molten metal has been injected under pressure into a metallic mold for the rocker arm, a secondary pressurizing force directed in the direction of an imaginary center axis of a rocker arm shaft is exerted by means of a pressurizing rod. In the metallic mold for the rocker arm, a sprue is provided close to the position where the wear-resistive piece is disposed with respect to the position where the bearing section is formed, and the direction of the sprue is directed towards the position where the wear-resistive place is disposed.Type: GrantFiled: July 9, 1987Date of Patent: September 11, 1990Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Masakazu Sato, Seiichi Koike, Toshihiro Oikawa, Keisuke Ban