Patents by Inventor Yoshiaki Kitajima
Yoshiaki Kitajima 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: 8112872Abstract: A coil component having an easily discernible orientation, and a method of producing such a coil component that facilitates the injection of resin. A coil component includes a core with a winding portion, first and second flanges disposed on either end of the winding portion, and a winding accommodating region defined by the winding portion and the first and second flanges, terminal electrodes disposed on the second flange and a winding wound about the winding portion and connected to the terminal electrodes. An insulating resin is formed over the winding at the winding accommodating region. A marker made from a material the same as the insulating resin is provided at outer peripheral surface of the flanges.Type: GrantFiled: June 24, 2008Date of Patent: February 14, 2012Assignee: TDK CorporationInventors: Shinichi Sato, Satoshi Kurimoto, Makoto Morita, Akira Takashima, Sumio Takahashi, Yoshiaki Kitajima
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Patent number: 8013704Abstract: A coil component comprises: a core having a winding core portion, and a first flange and a second flange arranged at both ends of the winding core portion; a winding arranged in a region flanked by the first and second flanges, and wound so as to be in contact with the winding core portion; and a cover portion arranged in a region flanked by the first and second flanges, so as to cover the winding. The cover portion has a first cover portion comprising a resin cured product containing a magnetic material; and a second cover portion comprising a non-magnetic material. The second cover portion is interposed at least between the first flange and the first cover portion.Type: GrantFiled: January 26, 2011Date of Patent: September 6, 2011Assignee: TDK CorporationInventors: Yoshiaki Kitajima, Masatoshi Shindoh
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Publication number: 20110115592Abstract: A coil component comprises: a core having a winding core portion, and a first flange and a second flange arranged at both ends of the winding core portion; a winding arranged in a region flanked by the first and second flanges, and wound so as to be in contact with the winding core portion; and a cover portion arranged in a region flanked by the first and second flanges, so as to cover the winding. The cover portion has a first cover portion comprising a resin cured product containing a magnetic material; and a second cover portion comprising a non-magnetic material. The second cover portion is interposed at least between the first flange and the first cover portion.Type: ApplicationFiled: January 26, 2011Publication date: May 19, 2011Applicant: TDK CORPORATIONInventors: Yoshiaki KITAJIMA, Masatoshi Shindoh
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Patent number: 7898375Abstract: A coil component comprises: a core having a winding core portion, and a first flange and a second flange arranged at both ends of the winding core portion; a winding arranged in a region flanked by the first and second flanges, and wound so as to be in contact with the winding core portion; and a cover portion arranged in a region flanked by the first and second flanges, so as to cover the winding. The cover portion has a first cover portion comprising a resin cured product containing a magnetic material; and a second cover portion comprising a non-magnetic material. The second cover portion is interposed at least between the first flange and the first cover portion.Type: GrantFiled: March 13, 2008Date of Patent: March 1, 2011Assignee: TDK CorporationInventors: Yoshiaki Kitajima, Masatoshi Shindoh
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Patent number: 7714690Abstract: A coil component has a first coil part and a second coil part, a middle member, and a shield member. Each of the first and second coil parts includes a drum core and a winding. The middle member is located between the first and second coil parts arranged in a state in which axes of winding drums in the respective first and second coil parts are parallel to each other. The shield member is formed at least in part of an outside surface of the winding in each of the first and second coil parts and is a resin containing a magnetic material powder. The magnetic permeability of the middle member is lower than that of the core and the shield member.Type: GrantFiled: January 22, 2008Date of Patent: May 11, 2010Assignee: TDK CorporationInventors: Atsushi Shoji, Masatoshi Shindoh, Yoshiaki Kitajima
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Publication number: 20090315659Abstract: A coil component having an easily discernible orientation, and a method of producing such a coil component that facilitates the injection of resin. A coil component includes a core with a winding portion, first and second flanges disposed on either end of the winding portion, and a winding accommodating region defined by the winding portion and the first and second flanges, terminal electrodes disposed on the second flange and a winding wound about the winding portion and connected to the terminal electrodes. An insulating resin is formed over the winding at the winding accommodating region. A marker made from a material the same as the insulating resin is provided at outer peripheral surface of the flanges.Type: ApplicationFiled: June 24, 2008Publication date: December 24, 2009Applicant: TDK CORPORATIONInventors: Shinichi Sato, Satoshi Kurimoto, Makoto Morita, Akira Takashima, Sumio Takahashi, Yoshiaki Kitajima
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Patent number: 7515028Abstract: A coil component having a low profile and being conducive to high-density mounting. The coil component includes a core 2 having a coil winding portion, and first and second flanges disposed on either end of the coil winding portion. The second flange is adapted to be mounted on a circuit board, and is configured of a substantially octagonal bottom surface having first and second peripheral surfaces and first through fourth omitted peripheral surfaces. The first terminal electrode is disposed across the first omitted peripheral surface and a part of the bottom surface, and the second terminal electrode is disposed across the second omitted peripheral surface and part of the bottom surface separated from the first terminal electrode. A winding is wound over the coil winding portion and has a first end electrically connected to the first terminal electrode at the first omitted peripheral surface, and a second end electrically connected to the second terminal electrode at the second omitted peripheral surface.Type: GrantFiled: June 24, 2008Date of Patent: April 7, 2009Assignee: TDK CorporationInventors: Shinichi Sato, Satoshi Kurimoto, Makoto Morita, Akira Takashima, Sumio Takahashi, Yoshiaki Kitajima
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Publication number: 20080252406Abstract: A coil component comprises: a core having a winding core portion, and a first flange and a second flange arranged at both ends of the winding core portion; a winding arranged in a region flanked by the first and second flanges, and wound so as to be in contact with the winding core portion; and a cover portion arranged in a region flanked by the first and second flanges, so as to cover the winding. The cover portion has a first cover portion comprising a resin cured product containing a magnetic material; and a second cover portion comprising a non-magnetic material. The second cover portion is interposed at least between the first flange and the first cover portion.Type: ApplicationFiled: March 13, 2008Publication date: October 16, 2008Applicant: TDK CORPORATIONInventors: Yoshiaki Kitajima, Masatoshi Shindoh
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Publication number: 20080179445Abstract: A coil component has a first coil part and a second coil part, a middle member, and a shield member. Each of the first and second coil parts includes a drum core and a winding. The middle member is located between the first and second coil parts arranged in a state in which axes of winding drums in the respective first and second coil parts are parallel to each other. The shield member is formed at least in part of an outside surface of the winding in each of the first and second coil parts and is a resin containing a magnetic material powder. The magnetic permeability of the middle member is lower than that of the core and the shield member.Type: ApplicationFiled: January 22, 2008Publication date: July 31, 2008Applicant: TDK CORPORATIONInventors: Atsushi Shoji, Masatoshi Shindoh, Yoshiaki Kitajima
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Patent number: D596563Type: GrantFiled: March 10, 2008Date of Patent: July 21, 2009Assignee: TDK CorporationInventors: Yoshiaki Kitajima, Atsushi Shoji, Masatoshi Shindoh