Patents by Inventor Akihiko Ibata
Akihiko Ibata 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: 7394341Abstract: A coil electric conductor has an insulating substrate, a first conductive layer, and a second conductive layer. The first conductive layer is formed at a depression provided on a face of the insulating substrate. The second conductive layer is formed on the first conductive layer with the first conductive layer interposed between the second conductive layer and the insulating substrate. This construction realizes a coil electric conductor having a highly precisely uniformized cross-sectional shape.Type: GrantFiled: December 22, 2004Date of Patent: July 1, 2008Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Koji Shimoyama, Nobuya Matsutani, Yuji Mido, Michio Ohba, Akihiko Ibata
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Patent number: 7390449Abstract: A method of manufacturing ceramic bodies comprising the steps of: preparing a ceramic sheet; forming through holes in the ceramic sheet, each of the through hole forming at least one part of the contour of each ceramic bodies; and cutting the ceramic sheet into pieces of ceramic bodies. The ceramic sheet can be a single ceramic sheet or a laminate of ceramic sheets. The method of manufacturing ceramic bodies further comprises a step of forming a recess in the ceramic sheet, or pressure molding or partially removing of the ceramic body, as required. The manufacturing method provides inexpensive production of small ceramic elements having a complicated shape and extremely smooth surfaces with less uneven filling and nonuniform density.Type: GrantFiled: November 6, 2001Date of Patent: June 24, 2008Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Akihiko Ibata, Michio Oba, Toshihiro Yoshizawa
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Patent number: 7212094Abstract: An inductive component in which a large enough inductance is obtainable even when the size is made smaller and the profile is made lower and electronic devices using the inductive component are provided. The inductive component includes a coil, a through hole inside the coil, and a multilayer magnetic layer, and the multilayer magnetic layer is disposed on the top and the bottom surfaces of the coil and the inner wall of the through hole.Type: GrantFiled: October 30, 2003Date of Patent: May 1, 2007Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Nobuya Matsutani, Akihiko Ibata, Yoshihisa Takase, Takeshi Takahashi
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Publication number: 20050140488Abstract: A coil electric conductor has an insulating substrate, a first conductive layer, and a second conductive layer. The first conductive layer is formed at a depression provided on a face of the insulating substrate. The second conductive layer is formed on the first conductive layer with the first conductive layer interposed between the second conductive layer and the insulating substrate. This construction realizes a coil electric conductor having a highly precisely uniformized cross-sectional shape.Type: ApplicationFiled: December 22, 2004Publication date: June 30, 2005Inventors: Koji Shimoyama, Nobuya Matsutani, Yuji Mido, Michio Ohba, Akihiko Ibata
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Publication number: 20050068150Abstract: An inductive component in which a large enough inductance is obtainable even when the size is made smaller and the profile is made lower and electronic devices using the inductive component are provided. The inductive component includes a coil, a through hole inside the coil, and a multilayer magnetic layer, and the multilayer magnetic layer is disposed on the top and the bottom surfaces of the coil and the inner wall of the through hole.Type: ApplicationFiled: October 30, 2003Publication date: March 31, 2005Inventors: Nobuya Matsutani, Akihiko Ibata, Yoshihisa Takase, Takeshi Takahashi
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Patent number: 6825748Abstract: A composite component including a helical strip and a plurality of terminals both made of a same conductor material, the helical strip formed in close contact with an external periphery of at least one capacitor constructed of at least one insulation layer and at least two electrode layers, wherein the helical axis of the helical conductor strip is parallel with the electrode layers composing the capacitor.Type: GrantFiled: March 17, 2000Date of Patent: November 30, 2004Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Akihiko Ibata, Michio Ooba, Toshihiro Yoshizawa
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Publication number: 20030057589Abstract: A method of manufacturing ceramic bodies comprising the steps of: preparing a ceramic sheet; forming through holes in the ceramic sheet, each of the through hole forming at least one part of the contour of each ceramic bodies; and cutting the ceramic sheet into pieces of ceramic bodies. The ceramic sheet can be a single ceramic sheet or a laminate of ceramic sheets. The method of manufacturing ceramic bodies further comprises a step of forming a recess in the ceramic sheet, or pressure molding or partially removing of the ceramic body, as required. The manufacturing method provides inexpensive production of small ceramic elements having a complicated shape and extremely smooth surfaces with less uneven filling and nonuniform density.Type: ApplicationFiled: August 6, 2002Publication date: March 27, 2003Inventors: Akihiko Ibata, Michio Oba, Toshihiro Yoshizawa
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Patent number: 6534842Abstract: A composite component of the invention has a structure of laminating a coil composed of at least one layer of conductor layer and at least one layer of insulator layer, and a capacitor composed of at least one layer of electrode layer and at least one layer of dielectric layer. And, it also includes, if necessary, an internal conductor for electrically connecting the coil and capacitor. Further, plural coil elements and capacitor elements are provided in a same layer. According to such constitution of the invention, composite components having various types of filter circuits can be manufactured easily by slight process condition changes. As a result, composite components for noise reduction can be mass produced efficiently, and a high productivity is obtained.Type: GrantFiled: February 23, 1999Date of Patent: March 18, 2003Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Akihiko Ibata, Michio Oba
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Patent number: 6395575Abstract: A sensor in which a field effect transistor element 3 having a gate electrode 6 on its rear side is electrically connected onto a resistive element 2 having a top surface electrode and a bottom surface electrode in such a way that the gate electrode 6 and a portion of the top surface electrode of the resistive element 2 coincides, and a grounding electrode 12 on a substrate is electrically connected with the bottom surface electrode of the resistive element 2 so that they coincides.Type: GrantFiled: January 20, 2000Date of Patent: May 28, 2002Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Shinji Umeda, Koji Nomura, Akihiko Ibata, Hiroshi Fujii, Takeshi Masutani
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Publication number: 20020003281Abstract: A composite component of the invention has a structure of laminating a coil composed of at least one layer of conductor layer and at least one layer of insulator layer, and a capacitor composed of at least one layer of electrode layer and at least one layer of dielectric layer. And, it also includes, if necessary, an internal conductor for electrically connecting the coil and capacitor. Further, plural coil elements and capacitor elements are provided in a same layer. According to such constitution of the invention, composite components having various types of filter circuits can be manufactured easily by slight process condition changes. As a result, composite components for noise reduction can be mass produced efficiently, and a high productivity is obtained.Type: ApplicationFiled: February 23, 1999Publication date: January 10, 2002Inventors: AKIHIKO IBATA, MICHIO OBA
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Patent number: 6169470Abstract: A coiled component (K1) having an insulating member (3) and a conductive member (5). The conductive member is provided in the insulating member (3) and has a plurality of turns which are gradually different, in diameter, from each other from one end towards the other end of the conductive member (5) such that at least the turns of the conductive member (5) are disposed in different planes, respectively. Also, a magnetic layer (8, 9) is provided on at least one of upper and lower faces of the insulating member (3).Type: GrantFiled: October 30, 1998Date of Patent: January 2, 2001Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Akihiko Ibata, Shinji Harada, Tadashi Kawamata
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Patent number: 4648915Abstract: A billet made of a polycrystalline Mn-Al-C alloy magnet which is obtained by plastically deforming a Mn-Al-C alloy for magnet such as by extrusion at a temperature of 530.degree. to 830.degree. C. is used for compressive working. When the billet is hollow, it is entirely or locally compressed along the axis of the hollow billet. On the other hand, when the billet is solid, an outer circumferential portion of the billet is compressed. By the compression, the anisotropic structure of the portion where compressed is changed into an anisotropic structure having a direction of easy magnetization in radial directions. The magnet obtained by the method is also disclosed. The magnet has a radially anisotropic structure or novel structures having two different types of anisotropies therein.Type: GrantFiled: September 30, 1985Date of Patent: March 10, 1987Assignee: Matsushita Electric Industrial Company, Ltd.Inventors: Akihiko Ibata, Yoichi Sakamoto
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Patent number: 4623404Abstract: Anisotropic Mn-Al-C alloy magnets exhibiting excellent magnetic characteristics in multipolar magnetization are described. The magnets are obtained by subjecting a polycrystalline Mn-Al-C alloy magnet, which is rendered anisotropic, to compressive working or extrusion at a temperature of from 530.degree. to 830.degree. C. while keeping restrained at least part of the hollow billet along its length so that the at least part is prevented from suffering compressive deformation until fed into a compressive working region. Permanent magnets obtained by the method are also described.Type: GrantFiled: April 18, 1983Date of Patent: November 18, 1986Assignee: Matsushita Electric Industrial Company, LimitedInventors: Akihiko Ibata, Yoichi Sakamoto
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Patent number: 4579607Abstract: A billet made of a polycrystalline Mn-Al-C alloy magnet which is obtained by plastically deforming a Mn-Al-C alloy for magnet such as by extrusion at a temperature of 530.degree. to 830.degree. C. is used for compressive working. When the billet is hollow, it is entirely or locally compressed along the axis of the hollow billet. On the other hand, when the billet is solid, an outer circumferential portion of the billet is compressed. By the compression, the anisotropic structure of the portion where compressed is changed into an anisotropic structure having a direction of easy magnetization in radial directions. The magnet obtained by the method is also disclosed. The magnet has a radially anisotropic structure or novel structures having two different types of anisotropies therein.Type: GrantFiled: April 18, 1983Date of Patent: April 1, 1986Assignee: Matsushita Electric Industrial Company, LimitedInventors: Akihiko Ibata, Yoichi Sakamoto
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Patent number: 4404046Abstract: There is provided a method of producing a manganese-aluminum-carbon alloy magnet, including the steps of preparing a polycrystalline Mn-Al-C alloy magnet having a specified direction of easy magnetization and subjecting the magnet to compressive working in that direction at a temperature of 550.degree. to 780.degree. C., the degree of said compressive working being equivalent to a logarithmic strain of .ltoreq.-0.1 and working in said step at least up to a logarithmic strain of -0.1 being free compression.Type: GrantFiled: February 5, 1981Date of Patent: September 13, 1983Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Yoichi Sakamoto, Akihiko Ibata, Shigeru Kojima, Tadao Ohtani