Patents by Inventor Satoru Hosomi
Satoru Hosomi 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: 9663851Abstract: A substrate for depositing diamond by CVD, comprising a base body of hard material and a coating layer that holds diamond particles as seed crystal in a matrix and is deposited joined thereto on a surface of said base body, wherein: the seed diamond particles have an average particle size of 1 ?m or smaller; the matrix comprises a first metal selected from a first group of Si, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo and W and/or a first compound between said first metal and a non-metallic substance selected from boron, carbon and nitrogen, said matrix holding the diamond particles distributed therein; and a joint zone developed as a result of a diffusion process and extending over said base body and coating layer comprises either or both atoms of said first metal and a component metal of the hard material.Type: GrantFiled: November 9, 2010Date of Patent: May 30, 2017Assignees: Tomel Diamond Co., Ltd., National University of Science and Technology “MISIS”, General Physics Institute of Russian Academy of ScienceInventors: Evgeny A. Levashov, Ekaterina V. Azarova, Victor G. Ralchenko, Andrey Bol'Shakov, Evgeny E. Ashkinazi, Hiroshi Ishizuka, Satoru Hosomi
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Publication number: 20130230715Abstract: A substrate for depositing diamond by CVD, comprising a base body of hard material and a coating layer that holds diamond particles as seed crystal in a matrix and is deposited joined thereto on a surface of said base body, wherein: the seed diamond particles have an average particle size of 1 ?m or smaller; the matrix comprises a first metal selected from a first group of Si, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo and W and/or a first compound between said first metal and a non-metallic substance selected from boron, carbon and nitrogen, said matrix holding the diamond particles distributed therein; and a joint zone developed as a result of a diffusion process and extending over said base body and coating layer comprises either or both atoms of said first metal and a component metal of the hard material.Type: ApplicationFiled: November 9, 2010Publication date: September 5, 2013Applicants: TOMEI DIAMOND CO., LTD., General Physics Institute of Russian Academy of Science, National University of Science and Technology "Misis"Inventors: Evgeny A. Levashov, Ekaterina V. Azarova, Victor G. Ralchenko, Andrey Bol'Shakov, Evgeny E. Ashkinazi, Hiroshi Ishizuka, Satoru Hosomi
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Patent number: 6500557Abstract: This invention provides a composite product and an effective method for producing the same, based on an SHS or intense heat producing process. Said composite essentially comprises either (1) one or more skeletal structures of three dimensionally joined pieces of at least one ceramic material selected from carbide, boride, nitride and silicide of titanium, zirconium, tantalum, niobium, silicon, chromium, tungsten, and molybdenum, and metallic material of alloy and/or intermetallic compound which fills the gaps within each and between adjacent skeletal structures, or (2) a matrix consisting of SHS products of metallic and/or ceramic substances, and particles of superabrasive selected from diamond and high pressure polymorphism of boron nitride, which are held and distributed in the matrix in the whole, in the surface or surface area comprising the portion corresponding to the end working face.Type: GrantFiled: September 18, 2000Date of Patent: December 31, 2002Assignees: Ishizuka Research Institute, Ltd., Moscow Steel & Alloys Institute SHS-CenterInventors: Mitsue Koizumi, Manshi Ohyanagi, Satoru Hosomi, Evgeny A. Levashov, Alexander V. Trotsue, Inna P. Borovinskaya
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Patent number: 6464747Abstract: Sintered cermet materials far tools such as cutting tools, which are excellent in heat resistance, wear resistance and fracture resistance, are inexpensive, and have long life time, and a method for producing such sintered cermet materials. The sintered cermet materials for tools are composed of sintered bodies which are obtained by preparing a mixed powder containing powders of TiCN, Si3N4, Al2O3, CrxN (x=1-2.7 and ZrN, at least one powder of W and WC, and at least one kind of metal powder selected from the group consisting of Co, Ni, Ta and Mo, and sintering the mixed powder .Type: GrantFiled: November 26, 2001Date of Patent: October 15, 2002Assignees: Aisin Seiki Kabushiki Kaisha, Tomei Diamond Co., Ltd.Inventors: Yasuhiro Enya, Kenji Gotoh, Satoru Hosomi
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Patent number: 6451249Abstract: This invention provides a composite product and an effective method for producing the same, based on an SHS or intense heat producing process. Said composite essentially comprises either (1) one or more skeletal structures of three dimensionally joined pieces of at least one ceramic material selected from carbide, boride, nitride and silicide of titanium, zirconium, tantalum, niobium, silicon, chromium, tungsten, and molybdenum, and metallic material of alloy and/or intermetallic compound which fills the gaps within each and between adjacent skeletal structures, or (2) a matrix consisting of SHS products of metallic and/or ceramic substances, and particles of superabrasive selected from diamond and high pressure polymorphism of boron nitride, which are held and distributed in the matrix in the whole, in the surface or surface area comprising the portion corresponding to the end working face.Type: GrantFiled: September 18, 2000Date of Patent: September 17, 2002Assignees: Ishizuka Research Institute, Ltd., Mitsue Koizumi, Manshi Ohyanagi, Moscow Steel & Alloys Institute SHS-CenterInventors: Mitsue Koizumi, Manshi Ohyanagi, Satoru Hosomi, Evgeny A. Levashov, Alexander V. Trotsue, Inna P. Borovinskaya
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Patent number: 6432150Abstract: A superabrasive containing layered composite is provided which comprises a substrate block consisting of either ceramic material and metallic or several metallic materials, and a superabrasive containing body adjacent said substrate block. The superabrasive contains superabrasive particles, and a metallic ingredient which is distributed in the superabrasive containing layer, including a working surface. The superabrasive material may be formed using a compression cell wherein the compression cell comprises a die defined by a vertical wall and a flat closed bottom. Placed in the die, in order from bottom upward, comprises a formed pallet of single body or layers of mixed powder forming a refractory compound, a material mass of a working layer containing diamond particles, a mass of ignition material comprising an SHS composition, and an electrical heating element.Type: GrantFiled: May 12, 2000Date of Patent: August 13, 2002Assignees: The Ishizuka Research Institute, Ltd., Moscow Steel and Alloys Institute, SHS-CenterInventors: Evgeny Alexandrovich Levashov, Alexander Sergeevich Rogatchov, Boris Vladmirovich Spitsin, Mitsue Koizumi, Manshi Ohyanagi, Satoru Hosomi
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Publication number: 20020094296Abstract: Sintered cermet materials for tools such as cutting tools, which are excellent in heat resistance, wear resistance and fracture resistance, are inexpensive, and have long life time, and a method for producing such sintered cermet materials. The sintered cermet materials for tools are composed of sintered bodies which are obtained by preparing a mixed powder containing powders of TiCN, Si3N4, Al2O3, CrxN (x=1-2.7) and ZrN, at least one powder of W and WC, and at least one kind of metal powder selected from the group consisting of Co, Ni, Ta and Mo, and sintering the mixed powder.Type: ApplicationFiled: November 26, 2001Publication date: July 18, 2002Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Yasuhiro Enya, Kenji Gotoh, Satoru Hosomi
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Patent number: 6337060Abstract: The principal objects of the invention is to provide diamond fine particles with a surface nature so improved as to form a stable, uniform suspension or dispersion in a common medium such as water and alcohol. Another object is to provide an effective technique for producing hydrophilic diamond fine particles by chemically modifying the particle surface nature, while removing at the same time contaminants and foreign materials which coexist with the diamond. In the invention, diamond particles are treated by boiling in the treatment fluid of sulfuric acid solution, which is in particular of concentrated or fuming nature, at a temperature more than 200° C., which is preferably 250° C. or more.Type: GrantFiled: June 12, 1996Date of Patent: January 8, 2002Assignees: The Ishizuka Research Institute, Ltd.Inventors: Akio Hiraki, Toshimichi Ito, Akimitsu Hatta, Hiroshi Makita, Kazuhito Nishimura, Hiroshi Ishizuka, Satoru Hosomi
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Patent number: 6336950Abstract: An aspect of this invention is an electrode rod for spark alloying, comprising a compact of a first powder of a first component which comprises a metal selected from a group of Fe, Co, Ni, metals of 4a, 5a and 6a of the periodic table and Si, and a second powder of a second component which is capable of self-propagating high temperature synthesis to form with said first component carbide, nitride, boride, silicide or intermetallic compound, said first and second powders being mixed intimately with each other and formed into an axial rod.Type: GrantFiled: May 5, 2000Date of Patent: January 8, 2002Assignees: The Ishizuka Research Institute Ltd., Moscow Steel and Alloys Institute, SHS-CenterInventors: Mitsue Koizumi, Manshi Ohyanagi, Satoru Hosomi, Evgeny Alexandrovich Levashov, Alexander Gennadievich Nikolaev, Alexander Evgenievich Kudryashov
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Patent number: 6203897Abstract: This invention provides a composite product and an effective method for producing the same, based on an SHS or intense heat producing process. Said composite essentially comprises either (1) one or more skeletal structures of three dimensionally joined pieces of at least one ceramic material selected from carbide, boride, nitride and silicide of titanium, zirconium, tantalum, niobium, silicon, chromium, tungsten, and molybdenum, and metallic material of alloy and/or intermetallic compound which fills the gaps within each and between adjacent skeletal structures, or (2) a matrix consisting of SHS products of metallic and/or ceramic substances, and particles of superabrasive selected from diamond and high pressure polymorphism of boron nitride, which are held and distributed in the matrix in the whole, in the surface or surface area comprising the portion corresponding to the end working face.Type: GrantFiled: August 12, 1996Date of Patent: March 20, 2001Assignees: The Ishizuka Research Institute, Ltd., Moscow Steel and Alloys Institute, SHS-CenterInventors: Mitsue Koizumi, Manshi Ohyanagi, Satoru Hosomi, Evgeny A. Levashov, Alexander V. Trotsue, Inna P. Borovinskaya
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Patent number: 6171709Abstract: The invention provides a superabrasive containing composite product, comprising and/or prepared on the intense heating of an SHS process, self-propagating high-temperature synthesis. An effective method of such product is also provided. Said composite comprises a substrate of shaped metallic block and a functional layer of ceramic materials containing superabrasive particles, which is joined on a surface of the former, by means of and intermediated by molten metal which occurred during the SHS process.Type: GrantFiled: May 11, 1998Date of Patent: January 9, 2001Assignees: The Ishizuka Research Institute, Ltd., Mitsue Koizumi, Manshi Ohyanagi, Moscow Steel and Alloys Institute, SHS-CenterInventors: Mitsue Koizumi, Manshi Ohyanagi, Satoru Hosomi, Evgeny A. Levashov, Alexander V. Trotsue, Inna P. Borovinskaya
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Patent number: 5882740Abstract: A method is provided for efficiently producing an entirely quality-controlled CVD diamond. A CVD process is interrupted at an early stage and the deposit is taken out of the reaction chamber, before a significant mass is accumulated, and is inspected by means of cathodoluminescence. The spectrum are compared with a given reference in terms of peak position, half width and 20%-value width in coordination. The observed deviation allows to determine whether to maintain or alter the settings.A diamond substance of acceptable quality which is properly specified in terms of the CL parameters is also provided.Type: GrantFiled: April 1, 1996Date of Patent: March 16, 1999Assignees: Ishizuka Research Institute Ltd., Ensei Ko, Osaka Diamond Industrial Co., LtdInventors: Chia-Fu Chen, Kazuhito Nishimura, Ensei Ko, Hiroshi Ishizuka, Satoru Hosomi
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Patent number: 5510157Abstract: Making a diamond substance exhibiting a cathodoluminescence spectrum with the peak at a photon energy greater than 2.8 eV (electron volt), the half-value and 20%-value width not exceeding 0.5 eV and 0.8 eV, respectively, comprising: providing a substrate in a closed chamber, introducing a matrix gas comprising H.sub.2 and one selected from hydrocarbon and CO to said chamber, exciting the gas to create a plasma while heating said substrate to a temperature of at least 700.degree. C. and, thus, causing deposition and growth of diamond substance which is crystallographically diamond, controlling parameters of the deposition by means of the cathodoluminescence record and recovering the diamond substance from the chamber.Type: GrantFiled: November 6, 1991Date of Patent: April 23, 1996Assignees: Ishizuka Research Institute, Ltd., Ensei Ko, Osaka Diamond Industrial Co., Ltd.Inventors: Chia-Fu Chen, Kazuhito Nishimura, Ensei Ko, Hiroshi Ishizuka, Satoru Hosomi
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Patent number: 5061292Abstract: Diamond abrasive comprising a mass of idiomorphic crystal grits which each have an irregular shaped core of diamond formed under pressure where diamond is thermodynamically favored phase, and a growth layer of diamond and/or diamond-like carbon formed over said core by chemical vapor deposition.Type: GrantFiled: July 13, 1989Date of Patent: October 29, 1991Assignees: The Ishizuka Research Institute, Ltd., Ensei KoInventors: Chia-Fu Chen, Ensei Ko, Hiroshi Ishizuka, Satoru Hosomi