Patents by Inventor Sadao Morimoto
Sadao Morimoto 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: 8159323Abstract: A transformer includes a first bobbin having a first primary winding and a first secondary winding wound therearound, having a first through hole; a second bobbin having a second primary winding and a second secondary winding wound therearound, having a second through hole; and two divided magnetic cores. A divided magnetic core is composed of center magnetic leg formed from a vertical wall and a side wall vertically linked to rear magnetic plate, with a T-shaped cross section; a first outer magnetic leg placed at one side separated by the vertical wall; and a second outer magnetic leg placed at the other side. The first and second outer magnetic legs are inserted from both sides of the first and second through hole.Type: GrantFiled: September 16, 2008Date of Patent: April 17, 2012Assignee: Panasonic CorporationInventors: Tomohiro Sugimura, Toshifumi Toya, Sadao Morimoto
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Patent number: 8072156Abstract: A discharge lamp operating system has first and second discharge lamp operating circuits. The first discharge lamp operating circuit includes first and second primary windings, a first secondary winding, a first discharge lamp connected to the first primary winding, and a second discharge lamp connected to the second primary winding. The second discharge lamp operating circuit includes third and fourth primary windings, a second secondary winding, a third discharge lamp connected to the third primary winding, and a fourth discharge lamp connected to the fourth primary winding. The first secondary winding and the second secondary winding are connected in series.Type: GrantFiled: July 25, 2007Date of Patent: December 6, 2011Assignee: Panasonic CorporationInventor: Sadao Morimoto
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Patent number: 7919930Abstract: The coil component comprises a primary coil, and a first secondary coil and a second secondary coil which are opposed to the primary coil. A first terminal is a terminal of the first secondary coil, that is a terminal for connection to one end of a lamp, and a second terminal is a terminal of the second secondary coil, that is a terminal for connection to the other end of the lamp. The first secondary coil and the second secondary coil are coaxially disposed, and the first terminal and the second terminal are reverse in polarity.Type: GrantFiled: April 6, 2006Date of Patent: April 5, 2011Assignee: Panasonic CorporationInventors: Tomohiro Sugimura, Sadao Morimoto, Katsumi Matsumura
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Patent number: 7772784Abstract: A transformer arranged to be used for an illuminating apparatus includes a closed-magnetic-circuit core, a primary coil wounded around the closed-magnetic-circuit core, and multiple secondary coils wounded around the closed-magnetic-circuit core. The secondary coils include first ends and second ends. The illuminating apparatus includes multiple discharge lamps. Each of the first ends and each of the second ends of each secondary coil are connected to different discharge lamps.Type: GrantFiled: February 9, 2006Date of Patent: August 10, 2010Assignee: Panasonic CorporationInventors: Hitoshi Yamasaki, Sadao Morimoto, Katsumi Matsumura
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Publication number: 20100194306Abstract: A transformer includes a first bobbin having a first primary winding and a first secondary winding wound therearound, having a first through hole; a second bobbin having a second primary winding and a second secondary winding wound therearound, having a second through hole; and two divided magnetic cores. A divided magnetic core is composed of center magnetic leg formed from a vertical wall and a side wall vertically linked to rear magnetic plate, with a T-shaped cross section; a first outer magnetic leg placed at one side separated by the vertical wall; and a second outer magnetic leg placed at the other side. The first and second outer magnetic legs are inserted from both sides of the first and second through hole.Type: ApplicationFiled: September 16, 2008Publication date: August 5, 2010Applicant: Panasonic CorporationInventors: Tomohiro Sugimura, Toshifumi Toya, Sadao Morimoto
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Publication number: 20090195173Abstract: A discharge lamp operating system has first and second discharge lamp operating circuits. The first discharge lamp operating circuit includes a first and second primary winding, a first secondary winding, a first discharge lamp connected to the first primary winding, and a second discharge lamp connected to the second primary winding. The second discharge lamp operating circuit includes a third and fourth primary winding, a second secondary winding, a third discharge lamp connected to the third primary winding, and a fourth discharge lamp connected to the fourth primary winding. The first secondary winding and the second secondary winding are connected in series.Type: ApplicationFiled: July 25, 2007Publication date: August 6, 2009Inventor: Sadao Morimoto
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Publication number: 20090146577Abstract: A transformer arranged to be used for an illuminating apparatus includes a closed-magnetic-circuit core, a primary coil wounded around the closed-magnetic-circuit core, and plural secondary coils wounded around the closed-magnetic-circuit core. The plural secondary coils includ respective first ends and respective second ends. The illuminating apparatus includes plural discharge lamps. Each of the respective first ends and each of the respective second ends are arranged to be connected to discharge lamps, out of the plurality of discharge lamps, different from each other. This transformer prevents variation of lighting timings of discharge lamps, accordingly providing an illuminating apparatus and a display apparatus having little brightness variation.Type: ApplicationFiled: February 9, 2006Publication date: June 11, 2009Applicant: Matsushita Electric Industrial Co., Ltd.Inventors: Hitoshi Yamasaki, Sadao Morimoto, Katsumi Matsumura
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Publication number: 20090033242Abstract: The coil component comprises a primary coil, and a first secondary coil and a second secondary coil which are opposed to the primary coil. A first terminal is a terminal of the first secondary coil, that is a terminal for connection to one end of a lamp, and a second terminal is a terminal of the second secondary coil, that is a terminal for connection to the other end of the lamp. The first secondary coil and the second secondary coil are coaxially disposed, and the first terminal and the second terminal are reverse in polarity.Type: ApplicationFiled: April 6, 2006Publication date: February 5, 2009Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.Inventors: Tomohiro Sugimura, Sadao Morimoto, Katsumi Matsumura
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Patent number: 6344982Abstract: A power supply circuit employed in various types of electronic appliances, telecommunications equipment, and the like, is provided for generating a voltage pulse by resonance effect of a primary side of a transformer, and outputting the voltage pulse from a secondary side after raising a voltage thereof. The power supply suppresses fluctuations of electric current, and prevents noise from being propagated through a device powered by the supply. A control circuit actuates a second switching element into a non-conducting state while a first switching element is in a conducting state. The power supply switches the second switching element into a conducting state when voltage of a primary coil is greater than voltage of a driving power supply after an electric current flows in a first diode while the first switching element is in a non-conducting state.Type: GrantFiled: November 29, 2000Date of Patent: February 5, 2002Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Sadao Morimoto, Toshikazu Nagaki