Patents by Inventor Hisashi Morikawa
Hisashi Morikawa 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: 10512154Abstract: Since a protruding portion preventing a rotation during screw fastening of a connection member is disposed to engage with a printed circuit board, and a protruded length of the protruding portion is smaller than a thickness of the printed circuit board, a configuration can be achieved such that the protruding portion does not interfere with an earth member, a bracket, etc., disposed on the back side of the printed circuit board, and the earth member and the bracket can freely be designed.Type: GrantFiled: October 2, 2013Date of Patent: December 17, 2019Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Manabu Kinoshita, Nobuo Shirokawa, Haruo Suenaga, Hisashi Morikawa, Hideaki Moriya
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Patent number: 9370091Abstract: Since a protruding portion preventing a rotation during screw fastening of a connection member is disposed to engage with an end surface of a printed circuit board, a configuration can be achieved such that the protruding portion does not interfere with an earth member, a bracket, etc. disposed on the back side of the printed circuit board, and the earth member and the bracket can freely be designed.Type: GrantFiled: October 2, 2013Date of Patent: June 14, 2016Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Manabu Kinoshita, Nobuo Shirokawa, Haruo Suenaga, Hisashi Morikawa, Hideaki Moriya
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Patent number: 9357591Abstract: A resonance type high frequency heating apparatus comprising; a direct current power supply; a series connection circuit consisting of a pair of semiconductor switching elements connected in parallel to the direct current power supply; another series connection circuit having a primary coil of a leakage transformer and a capacitor connected to both ends of one of the pair of semiconductor switching elements; and a drive means for driving each of the pair of semiconductor switching elements; wherein a variable dead time preparation circuit is provided in the drive means, and the variable dead time preparation circuit enables dead time to remain constant at below a predetermined frequency and causes the dead time to increase sharply at a point above a predetermined frequency.Type: GrantFiled: October 15, 2004Date of Patent: May 31, 2016Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Hideaki Moriya, Haruo Suenaga, Hisashi Morikawa, Shinichi Sakai, Toyotsugu Matsukura, Nobuo Shirokawa
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Publication number: 20150271910Abstract: Since a protruding portion preventing a rotation during screw fastening of a connection member is disposed to engage with a printed circuit board, and a protruded length of the protruding portion is smaller than a thickness of the printed circuit board, a configuration can be achieved such that the protruding portion does not interfere with an earth member, a bracket, etc., disposed on the back side of the printed circuit board, and the earth member and the bracket can freely be designed.Type: ApplicationFiled: October 2, 2013Publication date: September 24, 2015Inventors: Manabu Kinoshita, Nobuo Shirokawa, Haruo Suenaga, Hisashi Morikawa, Hideaki Moriya
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Publication number: 20150250048Abstract: Since a protruding portion preventing a rotation during screw fastening of a connection member is disposed to engage with an end surface of a printed circuit board, a configuration can be achieved such that the protruding portion does not interfere with an earth member, a bracket, etc. disposed on the back side of the printed circuit board, and the earth member and the bracket can freely be designed.Type: ApplicationFiled: October 2, 2013Publication date: September 3, 2015Inventors: Manabu Kinoshita, Nobuo Shirokawa, Haruo Suenaga, Hisashi Morikawa, Hideaki Moriya
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Patent number: 8217323Abstract: An object of the present invention is to provide an inverter circuit in which soft start can be implemented by a simple circuit added thereto. In high-frequency heating apparatus for driving a magnetron, a DC power supply is chopped by two semiconductor switching devices, and this is output as an AC current through a resonance circuit. The high-frequency heating apparatus includes a dead time generation circuit for turning off the semiconductor switching devices concurrently. In the high-frequency heating apparatus, a drive unit for driving the aforementioned semiconductor switching devices has a function of limiting the lowest frequency of a frequency with which the semiconductor switching devices are driven. The aforementioned lowest frequency is set to be high at the beginning of operation of the high-frequency heating apparatus, and the aforementioned lowest frequency is set to be lower gradually thereafter.Type: GrantFiled: April 4, 2005Date of Patent: July 10, 2012Assignee: Panasonic CorporationInventors: Haruo Suenaga, Hideaki Moriya, Shinichi Sakai, Hisashi Morikawa, Toyotsugu Matsukura, Nobuo Shirokawa
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Patent number: 8038172Abstract: To provide a compact fuel tank including a fuel pump in accordance with one or more embodiments. For example in an embodiment, a motorcycle includes a tank rail forming an upper part of a body frame, a fuel tank having a pair of tank sections disposed across the tank rail in a vehicle width direction and mounted on and across the tank rail, and a fuel pump disposed in the fuel tank for supplying fuel to an engine, in which a mounting surface for the fuel pump is formed on a bottom of one of the pair of tank sections and the mounting surface is formed to be tilted in an in-and-out direction with respect to the vehicle width direction.Type: GrantFiled: January 12, 2009Date of Patent: October 18, 2011Assignee: Yamaha Hatsudoki Kabushiki KaishaInventor: Hisashi Morikawa
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Patent number: 8017893Abstract: A purpose of the present invention is to provide an inverter circuit capable of suppressing an overshooting phenomenon of an input current at an instantaneous time when an initiating operation of the inverter circuit is switched to the normal operation thereof, and thus, capable of preventing damages of IGBTs and a magnetron.Type: GrantFiled: April 22, 2005Date of Patent: September 13, 2011Assignee: Panasonic CorporationInventors: Haruo Suenaga, Hideaki Moriya, Shinichi Sakai, Hisashi Morikawa, Toyotsugu Matsukura, Nobuo Shirokawa
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Patent number: 7690689Abstract: A saddle-type vehicle that securely supports a fuel tank with sufficient strength when load in a vertical direction is applied. A pair of frame members extend in a front-and-rear direction of the vehicle and support a fuel tank. The fuel tank has a pair of flanges contacting the outer sides of the frame members. The flanges are attached to the frame members by attachment members inserted from outside in a vehicle width direction.Type: GrantFiled: August 25, 2006Date of Patent: April 6, 2010Assignee: Yamaha Hatsudoki Kabushiki KaishaInventors: Sakio Muroo, Hisashi Morikawa
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Publication number: 20090218155Abstract: To provide a compact fuel tank including a fuel pump in accordance with one or more embodiments. For example in an embodiment, a motorcycle includes a tank rail forming an upper part of a body frame, a fuel tank having a pair of tank sections disposed across the tank rail in a vehicle width direction and mounted on and across the tank rail, and a fuel pump disposed in the fuel tank for supplying fuel to an engine, in which a mounting surface for the fuel pump is formed on a bottom of one of the pair of tank sections and the mounting surface is formed to be tilted in an in-and-out direction with respect to the vehicle width direction.Type: ApplicationFiled: January 12, 2009Publication date: September 3, 2009Inventor: Hisashi Morikawa
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Publication number: 20090001073Abstract: A resonance type high frequency heating apparatus comprising; a direct current power supply; a series connection circuit consisting of a pair of semiconductor switching elements connected in parallel to the direct current power supply; another series connection circuit having a primary coil of a leakage transformer and a capacitor connected to both ends of one of the pair of semiconductor switching elements; and a drive means for driving each of the pair of semiconductor switching elements; wherein a variable dead time preparation circuit is provided in the drive means, and the variable dead time preparation circuit enables dead time to remain constant at below a predetermined frequency and causes the dead time to increase sharply at a point above a predetermined frequency.Type: ApplicationFiled: October 15, 2004Publication date: January 1, 2009Applicant: Matsushita Electric Industrial Co., Ltd.Inventors: Hideaki Moriya, Haruo Suenaga, Hisashi Morikawa, Shinichi Sakai, Toyotsugu Matsukura, Nobuo Shirokawa
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Publication number: 20080272115Abstract: A purpose of the present invention is to provide an inverter circuit capable of suppressing an overshooting phenomenon of an input current at an instantaneous time when an initiating operation of the inverter circuit is switched to the normal operation thereof, and thus, capable of preventing damages of IGBTs and a magnetron.Type: ApplicationFiled: April 22, 2005Publication date: November 6, 2008Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.Inventors: Haruo Suenaga, Hideaki Moriya, Shinichi Sakai, Hisashi Morikawa, Toyotsugu Matsukura, Nobuo Shirokawa
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Patent number: 7414228Abstract: There is constructed a constitution such that a shunt resistor 30 is interposed in series with a portion capable of measuring an output current of a unidirectional power source portion 1 of a high frequency heating apparatus and a voltage generated at the shunt resistor 30 is outputted by a buffer 31. Further, an operational amplifier 3101 having a high input impedance is used for the buffer 31. Further, a diode bridge 101 and a semiconductor switching element 205 are fixed to a common heat radiating plate 33, the heat radiating plate 33 is formed with a notched portion 33a to thereby ensure insulating distances to the diode bridge 101 and the semiconductor switching element 205, and the shunt resistor 30 is arranged on a straight line the same as that between the diode bridge 101 and the semiconductor switching element 205.Type: GrantFiled: April 9, 2004Date of Patent: August 19, 2008Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Haruo Suenaga, Hideaki Moriya, Hisashi Morikawa, Shinichi Sakai, Makoto Mihara, Nobuo Shirokawa, Toyotsubu Matsukura, Masato Matsuda
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Patent number: 7282682Abstract: A purpose of the present invention is to provide an inverter circuit capable of firmly turning ON IGBTs under limited condition, while a heat loss and noise can be hardly produced in semiconductor switching elements.Type: GrantFiled: April 26, 2005Date of Patent: October 16, 2007Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Haruo Suenaga, Hideaki Moriya, Shinichi Sakai, Hisashi Morikawa, Nobuo Shirokawa, Manabu Kinoshita
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Publication number: 20070200332Abstract: A saddle-type vehicle that securely supports a fuel tank with sufficient strength when load in a vertical direction is applied. A pair of frame members extend in a front-and-rear direction of the vehicle and support a fuel tank. The fuel tank has a pair of flanges contacting the outer sides of the frame members. The flanges are attached to the frame members by attachment members inserted from outside in a vehicle width direction.Type: ApplicationFiled: August 25, 2006Publication date: August 30, 2007Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHAInventors: Sakio Muroo, Hisashi Morikawa
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Publication number: 20070195561Abstract: An object of the present invention is to provide an inverter circuit in which soft start can be implemented by a simple circuit added thereto. In high-frequency heating apparatus for driving a magnetron, a DC power supply is chopped by two semiconductor switching devices, and this is output as an AC current through a resonance circuit. The high-frequency heating apparatus includes a dead time generation circuit for turning off the semiconductor switching devices concurrently. In the high-frequency heating apparatus, a drive unit for driving the aforementioned semiconductor switching devices has a function of limiting the lowest frequency of a frequency with which the semiconductor switching devices are driven. The aforementioned lowest frequency is set to be high at the beginning of operation of the high-frequency heating apparatus, and the aforementioned lowest frequency is set to be lower gradually thereafter.Type: ApplicationFiled: April 4, 2005Publication date: August 23, 2007Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.Inventors: Haruo Suenaga, Hideaki Moriya, Shinichi Sakai, Hisashi Morikawa, Toyotsugu Matsukura, Nobuo Shirokawa
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Publication number: 20070175890Abstract: A purpose of the present invention is to provide an inverter circuit capable of firmly turning ON IGBTs under limited condition, while a heat loss and noise can be hardly produced in semiconductor switching elements.Type: ApplicationFiled: April 26, 2005Publication date: August 2, 2007Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.Inventors: Haruo Suenaga, Hideaki Moriya, Shinichi Sakai, Hisashi Morikawa, Nobuo Shirokawa, Manabu Kinoshita
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Publication number: 20070103952Abstract: A booster transformer 100 for driving a magnetron includes a bobbin 11 on which at least a first winding 13 and a secondary winding 15 are wound and a core 19 inserted through the center of the bobbin 11, wherein a winding area of the secondary winding 15 is divided into two areas while interposing a partition wall 23, and an outer diameter d of a wire material of the secondary winding 15 and a width t1 of each of the divided winding areas are so set as to satisfy the relation t1<11d.Type: ApplicationFiled: April 14, 2004Publication date: May 10, 2007Applicant: Matsushita Electric Industrial Co., Ltd.Inventors: Shinichi Sakai, Keiichi Satou, Kenji Yasui, Haruo Suenaga, Hisashi Morikawa
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Publication number: 20060226141Abstract: There is constructed a constitution such that a shunt resistor 30 is interposed in series with a portion capable of measuring an output current of a unidirectional power source portion 1 of a high frequency heating apparatus and a voltage generated at the shunt resistor 30 is outputted by a buffer 31. Further, an operational amplifier 3101 having a high input impedance is used for the buffer 31. Further, a diode bridge 101 and a semiconductor switching element 205 are fixed to a common heat radiating plate 33, the heat radiating plate 33 is formed with a notched portion 33a to thereby ensure insulating distances to the diode bridge 101 and the semiconductor switching element 205, and the shunt resistor 30 is arranged on a straight line the same as that between the diode bridge 101 and the semiconductor switching element 205.Type: ApplicationFiled: April 9, 2004Publication date: October 12, 2006Applicant: Matsushita Electric Industrial Co., Ltd.Inventors: Haruo Suenaga, Hideaki Moriya, Hisashi Morikawa, Shinichi Sakai, Makoto Mihara, Nobuo Shirokawa, Toyotsugu Matsukura, Masato Matsuda
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Patent number: 6970065Abstract: It is an object to decrease an occupied space in a printed board to carry out space saving and to reduce the size of a unit without sacrificing the performance of a transformer and increasing a cost. A transformer 11 is constituted by a bobbin 13 having at least a primary winding 15 and a secondary winding 17 wound therearound and a core 21, and the side surface of the bobbin 13 is provided with a component holding section for holding high-voltage components such as a capacitor 31 and a diode 33 which constitute a voltage doubler rectifying circuit for rectifying a high voltage having a high frequency from the secondary winding 15.Type: GrantFiled: September 16, 2003Date of Patent: November 29, 2005Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Shinichi Sakai, Keiichi Satou, Kenji Yasui, Haruo Suenaga, Hisashi Morikawa, Yoshitaka Oda, Nobuo Shirokawa