Patents by Inventor Hideki Morimitsu
Hideki Morimitsu 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: 11504908Abstract: The additive manufacturing system includes a container having an upper part being opened, a base part being vertically movable, and defining a space therein, the space being fillable with sand as a base material of a molded object, an additive manufacturing apparatus forming a green body of the molded object layer by layer in the container while causing the base part to move down, and a microwave oven defining a space therein, the space configured to house the container including the green body, the microwave oven configured to irradiate the container with a microwave to obtain the molded object, wherein a part or a whole of the container is made of a dielectric.Type: GrantFiled: March 4, 2020Date of Patent: November 22, 2022Assignee: SINTOKOGIO, LTD.Inventors: Hiroyasu Makino, Yoshihisa Suzuki, Hideki Morimitsu
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Publication number: 20200282647Abstract: The additive manufacturing system includes a container having an upper part being opened, a base part being vertically movable, and defining a space therein, the space being fillable with sand as a base material of a molded object, an additive manufacturing apparatus forming a green body of the molded object layer by layer in the container while causing the base part to move down, and a microwave oven defining a space therein, the space configured to house the container including the green body, the microwave oven configured to irradiate the container with a microwave to obtain the molded object, wherein a part or a whole of the container is made of a dielectric.Type: ApplicationFiled: March 4, 2020Publication date: September 10, 2020Applicant: SINTOKOGIO, LTD.Inventors: Hiroyasu MAKINO, Yoshihisa SUZUKI, Hideki MORIMITSU
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Publication number: 20100295220Abstract: Provided is a multi-leaf spring-type vibration damping device capable of suppressing the resonance caused by rotations near the major critical speed of a rotating shaft system and suppressing self-excited vibrations due to rotations at or higher than the major critical speed of the rotating shaft system. In the multi-leaf spring-type vibration damping device, a bearing (9) of a rotating shaft system (6) that includes at least a rotating shaft (4) fit in the bearing and a rotor (5) mounted on the rotating shaft is clamped between a plurality of fixedly mounted and properly spaced-apart multi-leaf springs (11) at the portions near their distal ends, or the plurality of multi-leaf springs contact at those portions near the distal ends with the bearing, thereby to suppress the whirling vibrations of the bearing.Type: ApplicationFiled: January 10, 2007Publication date: November 25, 2010Inventors: Masaya Hotta, Hirohide Ishiguro, Hideki Morimitsu, Masahiko Nagasaka, Tomohiro Aoki
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Patent number: 7694540Abstract: A device for damping runout vibration of a rotating shaft system at least including a rotating shaft and a rotating body rotatably supported by the shaft. A ring (24) is provided outside a bearing (23) fitted on a rotating shaft with a clearance between the ring and an outer ring of the bearing. A vibration damping mechanism includes, in order to suppress runout vibration of a rotating shaft system from the radially outside of the ring (24), a blade spring (25) compressed by a preload and a stopper (26) for setting an operation limit of the blade spring.Type: GrantFiled: September 10, 2004Date of Patent: April 13, 2010Assignees: Sintokogio, Ltd.Inventors: Yukio Ishida, Jun Liu, Shoji Uchimura, Hideki Morimitsu, Hirohide Ishiguro
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Patent number: 7459178Abstract: A process for producing a ceramic sinter or inorganic film in which anisotropic particles or anisotropic crystals have been oriented; or a process for producing a bonded composite material which comprises a base sample and another material tenaciously bonded to a surface of the base. The processes are characterized by imposing a centrifugal force during buming (heating).Type: GrantFiled: November 5, 2002Date of Patent: December 2, 2008Assignees: National Institute of Advanced Industrial Science and Technology, Sinto V-Cerax, Ltd.Inventors: Koji Watari, Kazuo Nakamura, Kimiyasu Sato, Yoshiaki Kinemuchi, Shoji Uchimura, Hirohide Ishiguro, Hideki Morimitsu
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Publication number: 20070006393Abstract: A device for damping runout vibration of a rotating shaft system at least including a rotating shaft and a rotating body rotatably supported by the shaft. A ring (24) is provided outside a bearing (23) fitted on a rotating shaft with a clearance between the ring and an outer ring of the bearing. A vibration damping mechanism includes, in order to suppress runout vibration of a rotating shaft system from the radially outside of the ring (24), a blade spring (25) compressed by a preload and a stopper (26) for setting an operation limit of the blade spring.Type: ApplicationFiled: September 10, 2004Publication date: January 11, 2007Applicant: SINTOKOGIO, LTD.Inventors: Yukio Ishida, Jun Liu, Shoji Uchimura, Hideki Morimitsu, Hirohide Ishiguro
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Publication number: 20060055092Abstract: The present invention provides a rotor, a shaft or a sample holder for a centrifugal sintering system, and the present invention relates to a ceramic member for a centrifugal sintering system which is a member consisting of a rotor, a shaft or a sample holder for use in a centrifugal sintering system imparting a centrifugal force field and a temperature field to a molded body of ceramics or metal powder or a ceramic precursor film wherein a rotor for turning a sample holder, a shaft or a sample holder is composed of ceramics, to the ceramic member wherein the rotor which turns the sample holder is composed of conductive silicon carbide ceramics and the rotor alone is selectively caused to self heat by induction heating means to indirectly heat the sample, and to the ceramic member wherein the sample holder is composed of a material with a large dielectric loss and the sample holder alone is selectively heated using dielectric heating means to indirectly heat the sample.Type: ApplicationFiled: December 25, 2003Publication date: March 16, 2006Applicants: NATIONAL INSTIT OF ADVANCE INDUST SCIENCE AND TECH, SINTO V-CERAX , LTD.Inventors: Koji Watari, Yoshiaki Kinemuchi, Shoji Uchimura, Hirohide Ishiguro, Hideki Morimitsu
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Patent number: 6884386Abstract: When a sintered body of ceramic is shot-blasted at normal temperatures to plastically deform the crystal structure of the shot-blasted surface to apply residual stress and is heat-treated to recrystallize fine cracks, dislocated cells in the grain boundary are formed, crystals are finely divided, and the fracture toughness is significantly improved. When the sintered body of ceramic is a thin product, an effective toughening can be attained by shot blasting both the front and back sides. After heat treatment, mechanical strength is significantly improved by removing a part of the modified surface layer by an abrasion treatment.Type: GrantFiled: September 20, 2001Date of Patent: April 26, 2005Assignees: Sintokogio, Ltd., Sinto V-Cerax, Ltd.Inventors: Hiroyasu Saka, Syoji Uchimura, Hideki Morimitsu
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Publication number: 20050006022Abstract: A process for producing a ceramic sinter or inorganic film in which anisotropic particles or anisotropic crystals have been oriented; or a process for producing a bonded composite material which comprises a base sample and another material tenaciously bonded to a surface of the base. The processes are characterized by imposing a centrifugal force during buming (heating).Type: ApplicationFiled: November 5, 2002Publication date: January 13, 2005Inventors: Koji Watari, Kazuo Nakamura, Kimiyasu Sato, Yoshiaki Kinemuchi, Shoji Uchimura, Hirohide Ishiguro, Hideki Morimitsu
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Publication number: 20040247855Abstract: It is an object to provide a method of manufacturing a porous medium having a grading porous structure, and there are provided a method of manufacturing a porous medium having a grading porous structure, comprising the steps of installing a sample consisting of a powder compact or a porous body in a rotating body, and heating the sample while applying a centrifugal force to the sample through high-speed rotation of the rotating body to produce a porous medium having a grading porous structure in which the pore size and the porosity change gradually by using the pressure grading in the sample arising through the centrifugal force, and such a method wherein the pore size and the porosity of the sample are predicted based on a linear shrinkage factor calculated through the equation:Type: ApplicationFiled: December 4, 2003Publication date: December 9, 2004Applicants: National Inst. of Adv. Industrial Sci. and Tech., Sinto V-Cerax, LTDInventors: Yoshiaki Kinemuchi, Koji Watari, Shoji Uchimura, Hirohide Ishiguro, Hideki Morimitsu
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Patent number: 6663828Abstract: A method and an apparatus for sintering a compact of particulate material for a ceramic or of particles of a metal, or a ceramic precursor film, wherein the sintering is performed by heating and burning the compact or the ceramic precursor film while applying centrifugal force to the compact or the ceramic precursor film.Type: GrantFiled: December 21, 2001Date of Patent: December 16, 2003Assignees: National Institute of Advanced Industrial Science and Technology, Sinto V-Cerax, Ltd.Inventors: Koji Watari, Mamoru Aizawa, Syoji Uchimura, Hirohide Ishiguro, Hideki Morimitsu
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Publication number: 20030162483Abstract: When a sintered body of ceramic is shot-blasted at normal temperatures to plastically deform the crystal structure of the shot-blasted surface to apply residual stress and is heat-treated to recrystallize fine cracks, dislocated cells in the grain boundary are formed, crystals are finely divided, and the fracture toughness is significantly improved. When the sintered body of ceramic is a thin product, an effective toughening can be attained by shot blasting both the front and back sides. After heat treatment, mechanical strength is significantly improved by removing a part of the modified surface layer by an abrasion treatment.Type: ApplicationFiled: March 20, 2003Publication date: August 28, 2003Inventors: Hiroyasu Saka, Syoji Uchimura, Hideki Morimitsu
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Publication number: 20020110475Abstract: A method and an apparatus for sintering a compact of particulate material for a ceramic or of particles of a metal, or a ceramic precursor film, wherein the sintering is performed by heating and burning the compact or the ceramic precursor film while applying centrifugal force to the compact or the ceramic precursor film.Type: ApplicationFiled: December 21, 2001Publication date: August 15, 2002Inventors: Koji Watari, Mamoru Aizawa, Syoji Uchimura, Hirohide Ishiguro, Hideki Morimitsu
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Patent number: D674295Type: GrantFiled: January 5, 2011Date of Patent: January 15, 2013Assignee: Sintokogio, LtdInventors: Hideki Morimitsu, Takuya Nitta