Patents by Inventor Kazutomo Hoshino
Kazutomo Hoshino 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: 7601442Abstract: A jig for calcining an electronic component including a substrate 11 and a zirconia layer 12 coated on a surface of the substrate characterized in that the zirconia layer including one or more metal oxides forming a liquid phase is calcined for improving peel-off resistance and wear resistance to crystallize the liquid phase after the calcination. In the jig for calcining the electronic component, when the zirconia layer is formed by using an inexpensive method such as an application method, the zirconia layer is not peeled off from the substrate, and grains are not detached.Type: GrantFiled: July 2, 2008Date of Patent: October 13, 2009Assignee: Mitsu Mining & Smelting Co., Ltd.Inventors: Kazutomo Hoshino, Hitoshi Kajino, Yasuhisa Idutsu, Koushi Horiuchi
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Publication number: 20080274871Abstract: A jig for calcining an electronic component including a substrate 11 and a zirconia layer 12 coated on a surface of the substrate characterized in that the zirconia layer including one or more metal oxides forming a liquid phase is calcined for improving peel-off resistance and wear resistance to crystallize the liquid phase after the calcination. In the jig for calcining the electronic component, when the zirconia layer is formed by using an inexpensive method such as an application method, the zirconia layer is not peeled off from the substrate, and grains are not detached.Type: ApplicationFiled: July 2, 2008Publication date: November 6, 2008Applicant: MITSUI MINING & SMELTING CO., LTD.Inventors: Kazutomo HOSHINO, Hitoshi Kajino, Yasuhisa Idutsu, Koushi Horiuchi
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Publication number: 20050257740Abstract: A jig for calcining an electronic component including a substrate and a zirconia surface layer formed on the substrate, wherein one of the skewness, the kurtosis, the central surface average roughness the wear resistance and the thermal shock resistance of the zirconia surface layer is specified to a certain range. Consequently, the jig for calcining the electronic component can efficiently conduct the calcination without deteriorating the properties of the electronic component to be calcined.Type: ApplicationFiled: September 11, 2003Publication date: November 24, 2005Applicant: MITSUI MINING & SMELTING COInventors: Kazutomo Hoshino, Hitoshi Kajino, Tatsuhiko Uchida, Yasuhisa Idutsu, Koushi Horiuchi
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Publication number: 20050252446Abstract: An electronic component burning jig comprising a base (11) and a zirconia layer (12) with which the surface of the base is characterized in that the zirconia layer containing one or more metal oxides forming a liquid phase is fired and the liquid phase (15) is crystallized after the firing to improve the separation resistance and wear resistance. Even when the zirconia layer is formed by a low-cost method such as coating, the zirconia layer is not separated from the base and no particle comes off the zirconia layer.Type: ApplicationFiled: August 29, 2003Publication date: November 17, 2005Inventors: Kazutomo Hoshino, Hitoshi Kajino, Yasuhisa Idutsu, Koushi Horiuchi
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Patent number: 5998322Abstract: Herein disclosed is a filter medium for molten metals which consists of a sintered body of a mixture comprising 100 parts by weight of at least one refractory grain selected from the group consisting of alumina particles and Al.sub.2 O.sub.3.MgO spinel crystal particles; and 5 to 25 parts by weight of an inorganic binder which comprises 60 to 90% by weight of Al.sub.2 O.sub.3.MgO spinel crystal powder, 5 to 12% by weight of B.sub.2 O.sub.3, and not more than 30% by weight of at least one oxide selected from the group consisting of Al.sub.2 O.sub.3, MgO and TiO.sub.2. The filter medium is used for filtering off solid impurities mixed in molten metals, in particular, molten aluminums.Type: GrantFiled: August 18, 1998Date of Patent: December 7, 1999Assignee: Mitsui Mining and Smelting Co., Ltd.Inventors: Kazutomo Hoshino, Toshiya Kunisaki, Hideaki Seto, Yukio Kai, Atsushi Kikuchi, Yukihisa Shiraishi, Kazunobu Kakimoto
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Patent number: 5418512Abstract: This invention provides a superconducting magnetic shield and a magnetic shielding apparatus including the same, thereby accurately measuring an extremely weak magnetic field such an magnetoencephalographic waves by reducing the influence of magnetic field of the earth or magnetic noises.Type: GrantFiled: December 9, 1992Date of Patent: May 23, 1995Assignees: Mitsui Kinzoku Kogyo Kabushiki Shisha, Rikagaku KenkyushoInventors: Hiroshi Ohta, Masakazu Aono, Kazuhiko Kato, Kazutomo Hoshino, Hidefusa Takahara, Tomonobu Nakayama, Eiichi Sudoh
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Patent number: 5339811Abstract: A magnetoencephalograph comprising an oxide superconductor magnetic shielded vessel and a cryostat for cooling the magnetic shielded vessel, a multichannel SQUID and a cryostat for cooling the SQUID inserted together in the magnetic shielded vessel from one end of the magnetic shielded vessel, a magnetic-field detection unit situated in the vessel for detecting magnetic fields, and a coupling portion for coupling the SQUID and the magnetic-field detection unit with respect to the signals, and the SQUID and the magnetic-field detection unit being detachable. The magnetoencephalograph makes possible the detection of the very weak magnetic fields from the human brain and therewith reduction of the diameter of the opening of the magnetic shield vessel for inserting the SQUID. The reduction of the diameter of the SQUID opening in turn makes it possible to reduce the length of the magnetic shielded vessel, thereby preserving a high shielding effect of the magnetic shield vessel because of the L/D relationship.Type: GrantFiled: October 30, 1992Date of Patent: August 23, 1994Assignees: Mitsui Mining & Smelting Co., Ltd., The Institute of Physical and Chemical Research (Riken)Inventors: Hiroshi Ohta, Kazutomo Hoshino
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Patent number: 5187327Abstract: This invention provides a superconducting magnetic shield and a magnetic shielding apparatus including the same, thereby accurately measuring an extremely weak magnetic field such as magnetoencephalographic waves by reducing the influence of magnetic field of the earth or magnetic noises.Type: GrantFiled: September 26, 1990Date of Patent: February 16, 1993Assignees: Mitsui Kinzoku Kogyo Kabushiki Kaisha, Rikagaku KenkyushoInventors: Hiroshi Ohta, Masakazu Aono, Kazuhiko Kato, Kazutomo Hoshino, Hidefusa Takahara, Tomonobu Nakayama, Eiichi Sudoh
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Patent number: 5096878Abstract: A method for making superconductive ceramics laminates comprises forming a thick film of a composite oxide comprising bismuth, strontium, calcium, copper and oxygen on a flat plane of a substrate, and orienting and crystallizing the thus formed film by heat treatment to cause the c-axis of composite oxide crystals to be substantially perpendicular to said flat plane of said substrate. An intermediate layer formed of a noble metal, MgO, SrTiO.sub.3, yttria-stabilized zirconia or an oxide of a superconductive ceramics-constituting element may be interposed between the film and the substrate.Type: GrantFiled: January 28, 1991Date of Patent: March 17, 1992Assignees: Mitsui Kinzoku Kogyo Kabushiki Kaisha, National Research Institute for Metals, Science and Technology AgencyInventors: Kazutomo Hoshino, Shigeru Yamazaki, Hidefusa Takahara, Masao Fukutomi