Patents by Inventor Yoshio Fujimura
Yoshio Fujimura 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: 9796254Abstract: A sealing member 30 includes a hollow seal portion 32. The hollow seal portion 32 has a slit 34. The hollow seal portion 32 has an engagement protrusion 44 engaged with an engagement hole 23 of a retainer 20, and a contact portion 45 coming in contact with the retainer 20 from outside in a lateral direction of a vehicle.Type: GrantFiled: May 11, 2016Date of Patent: October 24, 2017Assignee: Nishikawa Rubber Co., Ltd.Inventors: Yoshio Fujimura, Atsuo Masumoto
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Publication number: 20170216664Abstract: A blowout includes: a stretchable body having a tube shape and changeable in shape; a wire body having elasticity and arranged along the longitudinal directions of the stretchable body; a pipe body having a cylinder shape, one end part of the pipe body being connected to one end part of the stretchable body; and a mouthpiece body having a cylinder shape and connected to the other end part of the pipe body, the mouthpiece body being held by a user in the mouth such that air is blown by the user, in which the stretchable body is stretched by blowing air from the mouthpiece body while the stretchable body is curled into a spiral by the elastic force of the wire body when air is not blown from the mouthpiece body. In the blowout, the one end part of the stretchable body and the one end part of the pipe body are connected by a tightening band so that the stretchable body can be attached to and detached from the pipe body.Type: ApplicationFiled: August 31, 2015Publication date: August 3, 2017Inventors: Yoshio FUJIMURA, Hirokazu YAMAMOTO, Akemi KARIYA
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Patent number: 9616356Abstract: A blowout in which the required exhaling force of for stretching thereof may be precisely set to a suitable level. The blowout may include: a stretchable body having a generally tubular shape; a wire body having elasticity and arranged along the longitudinal direction of the stretchable body; and a mouthpiece connected to an end of the stretchable body. In use, the mouthpiece may be held in the mouth such that air is blown therethrough, whereby the stretchable body is stretched. The stretchable body remains curled into a spiral shape by the wire body when air is not blown thereinto. The elastic force of the wire body may be set to a predetermined value, the mouthpiece may include an air regulator for regulating the quantity of airflow, and the stretchable body may not stretch unless the force of air blown is equal to or more than a predetermined value.Type: GrantFiled: October 20, 2014Date of Patent: April 11, 2017Assignees: LUPINUS CO., LTD., FUKIMODOSHINOSATO CO., LTD.Inventors: Akemi Kariya, Hirokazu Yamamoto, Yoshio Fujimura, Yoshikatsu Kimura
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Publication number: 20160339770Abstract: A sealing member 30 includes a hollow seal portion 32. The hollow seal portion 32 has a slit 34. The hollow seal portion 32 has an engagement protrusion 44 engaged with an engagement hole 23 of a retainer 20, and a contact portion 45 coming in contact with the retainer 20 from outside in a lateral direction of a vehicle.Type: ApplicationFiled: May 11, 2016Publication date: November 24, 2016Inventors: Yoshio Fujimura, Atsuo Masumoto
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Patent number: 9485817Abstract: A control circuit of a light-emitting element comprises a rectifying unit which full-wave rectifies an alternating current power supply, a clock generator which generates and outputs a clock signal (CLK), a first comparator which compares a comparison voltage (CS) corresponding to a current flowing to the light-emitting element and a reference voltage (REF), and a switching element which is set to an ON state in synchronization with the clock signal (CLK) and which is set to an OFF state when the comparison voltage (CS) becomes greater than the reference voltage (REF) at the first comparator, to switch the current flowing to the light-emitting element. In this structure, a period of the clock signal (CLK) generated in the clock generator is varied, to reduce or inhibit noise.Type: GrantFiled: July 21, 2014Date of Patent: November 1, 2016Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLCInventors: Shuhei Kawai, Yoshio Fujimura
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Publication number: 20160296852Abstract: A blowout in which the required exhaling force of for stretching thereof may be precisely set to a suitable level. The blowout may include: a stretchable body having a generally tubular shape; a wire body having elasticity and arranged along the longitudinal direction of the stretchable body; and a mouthpiece connected to an end of the stretchable body. In use, the mouthpiece may be held in the mouth such that air is blown therethrough, whereby the stretchable body is stretched. The stretchable body remains curled into a spiral shape by the wire body when air is not blown thereinto. The elastic force of the wire body may be set to a predetermined value, the mouthpiece may include an air regulator for regulating the quantity of airflow, and the stretchable body may not stretch unless the force of air blown is equal to or more than a predetermined value.Type: ApplicationFiled: October 20, 2014Publication date: October 13, 2016Inventors: Akemi KARIYA, Hirokazu YAMAMOTO, Yoshio FUJIMURA, Yoshikatsu KIMURA
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Patent number: 9220137Abstract: A driver circuit is provided which comprises a series-connected unit having a light-emitting element and a current limiting inductor directly connected to the light-emitting element, a regenerative diode which is connected in parallel to the series-connected unit and which regenerates energy stored in the current limiting inductor, a transistor which controls a current flowing through the light-emitting element and the current limiting inductor, and a controller which controls an operation of the transistor, wherein the controller controls the transistor according to a voltage value of a power supply applied to the light-emitting element.Type: GrantFiled: March 2, 2014Date of Patent: December 22, 2015Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLCInventors: Yoshio Fujimura, Hiroshi Iizuka, Kazunari Kushiyama, Koudai Nakamura, Yuusuke Nishizaki, Kenpei En
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Publication number: 20140327367Abstract: A control circuit of a light-emitting element comprises a rectifying unit which full-wave rectifies an alternating current power supply, a clock generator which generates and outputs a clock signal (CLK), a first comparator which compares a comparison voltage (CS) corresponding to a current flowing to the light-emitting element and a reference voltage (REF), and a switching element which is set to an ON state in synchronization with the clock signal (CLK) and which is set to an OFF state when the comparison voltage (CS) becomes greater than the reference voltage (REF) at the first comparator, to switch the current flowing to the light-emitting element. In this structure, a period of the clock signal (CLK) generated in the clock generator is varied, to reduce or inhibit noise.Type: ApplicationFiled: July 21, 2014Publication date: November 6, 2014Inventors: Shuhei Kawai, Yoshio Fujimura
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Patent number: 8786348Abstract: A control circuit of a light-emitting element comprises a rectifying unit which full-wave rectifies an alternating current power supply, a clock generator which generates and outputs a clock signal (CLK), a first comparator which compares a comparison voltage (CS) corresponding to a current flowing to the light-emitting element and a reference voltage (REF), and a switching element which is set to an ON state in synchronization with the clock signal (CLK) and which is set to an OFF state when the comparison voltage (CS) becomes greater than the reference voltage (REF) at the first comparator, to switch the current flowing to the light-emitting element. In this structure, a period of the clock signal (CLK) generated in the clock generator is varied, to reduce or inhibit noise.Type: GrantFiled: June 3, 2011Date of Patent: July 22, 2014Assignee: Semiconductor Components Industries, LLCInventors: Shuhei Kawai, Yoshio Fujimura
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Publication number: 20140175994Abstract: A driver circuit is provided which comprises a series-connected unit having a light-emitting element and a current limiting inductor directly connected to the light-emitting element, a regenerative diode which is connected in parallel to the series-connected unit and which regenerates energy stored in the current limiting inductor, a transistor which controls a current flowing through the light-emitting element and the current limiting inductor, and a controller which controls an operation of the transistor, wherein the controller controls the transistor according to a voltage value of a power supply applied to the light-emitting element.Type: ApplicationFiled: March 2, 2014Publication date: June 26, 2014Applicant: Semiconductor Components Industries, LLCInventors: Yoshio Fujimura, Hiroshi Iizuka, Kazunari Kushiyama, Koudai Nakamura, Yuusuke Nishizaki, Kenpei En
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Patent number: 8665922Abstract: A driver circuit is provided which comprises a series-connected unit having a light-emitting element and a current limiting inductor directly connected to the light-emitting element, a regenerative diode which is connected in parallel to the series-connected unit and which regenerates energy stored in the current limiting inductor, a transistor which controls a current flowing through the light-emitting element and the current limiting inductor, and a controller which controls an operation of the transistor, wherein the controller controls the transistor according to a voltage value of a power supply applied to the light-emitting element.Type: GrantFiled: October 28, 2009Date of Patent: March 4, 2014Assignees: Sanyo Electric Co., Ltd., Sanyo Semiconductor Co., Ltd.Inventors: Yoshio Fujimura, Hiroshi Iizuka, Kazunari Kushiyama, Koudai Nakamura, Yuusuke Nishizaki, Kenpei En
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Patent number: 8575847Abstract: A control circuit of a light-emitting element comprises a rectifying unit (30), a switching element (38), a transformer (48) having a first winding (L1) which generates a magnetic field using a current controlled by switching of the switching element (38), a second winding (L2) which is magnetically coupled to the first winding (L1) and which generates a current flowing to an LED (102), and a third winding (L3) which is magnetically coupled to the first winding (L1) and which generates a voltage (Sfbk), and an averaging capacitor (32) which averages a voltage derived by superposing a voltage (Srec) rectified by the rectifying unit (30) and the voltage (Sfbk), and a voltage averaged by the averaging capacitor (32) is applied to the first winding (L1), so that light is emitted from the LED (102).Type: GrantFiled: April 22, 2011Date of Patent: November 5, 2013Assignee: ON Semiconductor Trading, Ltd.Inventors: Yoshio Fujimura, Shinichi Yamamoto, Feng Xu
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Patent number: 8569964Abstract: A control circuit of a light-emitting element comprises a rectifying unit (30) which full-wave rectifies an alternating current power supply, a switching element (38), a reference voltage generating unit (40) which generates a reference voltage (Vref), and a comparator (42) which receives a voltage (Srec) rectified by the rectifying unit (30), compares a comparative voltage (Vcmp) corresponding to a current flowing to an LED (102) and the reference voltage (Vref), and controls switching of the switching element (38) according to a comparison result, wherein the reference voltage generating unit (40) comprises a voltage dividing circuit having a transistor (Q1) in which a resistance value between a source and a drain is changed according to the voltage rectified by the rectifying unit (30), and outputs, using the voltage dividing circuit, the reference voltage (Vref) according to the voltage (Srec) rectified by the rectifying unit (30).Type: GrantFiled: April 28, 2011Date of Patent: October 29, 2013Assignee: ON Semiconductor Trading, Ltd.Inventors: Feng Xu, Yoshio Fujimura
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Patent number: 8330380Abstract: A control circuit comprises a rectifier unit for performing full wave rectification on an AC power source, a switching element for switching a current flowing through a light emitting device which emits light in response to a voltage having been full wave rectified in the rectifier unit, a voltage dividing circuit for dividing the voltage having been full wave rectified in the rectifier unit to obtain a reference voltage Vref, a comparator for comparing a comparison voltage Vcmp corresponding to the current flowing through the light emitting device with the reference voltage Vref, and a control unit for controlling switching of the switching element based on a comparison result obtained in the comparator.Type: GrantFiled: April 9, 2010Date of Patent: December 11, 2012Assignee: Semiconductor Components Industries, LLCInventors: Yoshio Fujimura, Yusuke Nishizaki, Satoru Yoshioka
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Publication number: 20110298395Abstract: A control circuit of a light-emitting element comprises a rectifying unit which full-wave rectifies an alternating current power supply, a clock generator which generates and outputs a clock signal (CLK), a first comparator which compares a comparison voltage (CS) corresponding to a current flowing to the light-emitting element and a reference voltage (REF), and a switching element which is set to an ON state in synchronization with the clock signal (CLK) and which is set to an OFF state when the comparison voltage (CS) becomes greater than the reference voltage (REF) at the first comparator, to switch the current flowing to the light-emitting element. In this structure, a period of the clock signal (CLK) generated in the clock generator is varied, to reduce or inhibit noise.Type: ApplicationFiled: June 3, 2011Publication date: December 8, 2011Applicant: ON SEMICONDUCTOR TRADING, LTD.Inventors: Shuhei Kawai, Yoshio Fujimura
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Publication number: 20110266965Abstract: A control circuit of a light-emitting element comprises a rectifying unit (30) which full-wave rectifies an alternating current power supply, a switching element (38), a reference voltage generating unit (40) which generates a reference voltage (Vref), and a comparator (42) which receives a voltage (Srec) rectified by the rectifying unit (30), compares a comparative voltage (Vcmp) corresponding to a current flowing to an LED (102) and the reference voltage (Vref), and controls switching of the switching element (38) according to a comparison result, wherein the reference voltage generating unit (40) comprises a voltage dividing circuit having a transistor (Q1) in which a resistance value between a source and a drain is changed according to the voltage rectified by the rectifying unit (30), and outputs, using the voltage dividing circuit, the reference voltage (Vref) according to the voltage (Srec) rectified by the rectifying unit (30).Type: ApplicationFiled: April 28, 2011Publication date: November 3, 2011Applicant: ON SEMICONDUCTOR TRADING, LTD.Inventors: Feng Xu, Yoshio Fujimura
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Publication number: 20110260651Abstract: A control circuit of a light-emitting element comprises a rectifying unit (30), a switching element (38), a transformer (48) having a first winding (L1) which generates a magnetic field using a current controlled by switching of the switching element (38), a second winding (L2) which is magnetically coupled to the first winding (L1) and which generates a current flowing to an LED (102), and a third winding (L3) which is magnetically coupled to the first winding (L1) and which generates a voltage (Sfbk), and an averaging capacitor (32) which averages a voltage derived by superposing a voltage (Srec) rectified by the rectifying unit (30) and the voltage (Sfbk), and a voltage averaged by the averaging capacitor (32) is applied to the first winding (L1), so that light is emitted from the LED (102).Type: ApplicationFiled: April 22, 2011Publication date: October 27, 2011Applicant: ON SEMICONDUCTOR TRADING, LTD.Inventors: Yoshio Fujimura, Shinichi Yamamoto, Feng Xu
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Publication number: 20100259181Abstract: A control circuit comprises a rectifier unit for performing full wave rectification on an AC power source, a switching element for switching a current flowing through a light emitting device which emits light in response to a voltage having been full wave rectified in the rectifier unit, a voltage dividing circuit for dividing the voltage having been full wave rectified in the rectifier unit to obtain a reference voltage Vref, a comparator for comparing a comparison voltage Vcmp corresponding to the current flowing through the light emitting device with the reference voltage Vref, and a control unit for controlling switching of the switching element based on a comparison result obtained in the comparator.Type: ApplicationFiled: April 9, 2010Publication date: October 14, 2010Applicants: SANYO ELECTRIC CO., LTD., SANYO SEMICONDUCTOR CO., LTD.Inventors: Yoshio FUJIMURA, Yusuke NISHIZAKI, Satoru YOSHIOKA
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Publication number: 20100111123Abstract: A driver circuit is provided which comprises a series-connected unit having a light-emitting element and a current limiting inductor directly connected to the light-emitting element, a regenerative diode which is connected in parallel to the series-connected unit and which regenerates energy stored in the current limiting inductor, a transistor which controls a current flowing through the light-emitting element and the current limiting inductor, and a controller which controls an operation of the transistor, wherein the controller controls the transistor according to a voltage value of a power supply applied to the light-emitting element.Type: ApplicationFiled: October 28, 2009Publication date: May 6, 2010Applicants: SANYO ELECTRIC CO., LTD., SANYO SEMICONDUCTOR CO., LTD.Inventors: Yoshio Fujimura, Hiroshi Iizuka, Kazunari Kushiyama, Koudai Nakamura, Yuusuke Nishizaki, Kenpei En
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Patent number: 7301786Abstract: A quasi resonant type switching power supplying unit includes an overcurrent limiting circuit and an oscillation level comparison circuit. The overcurrent limiting circuit (i.e., a level determining circuit and a reference voltage generating circuit) receives a reverse electromotive voltage generated from an auxiliary winding which is electromagnetically connected with a primary winding when a MOSFET is in an OFF state, and produces a reference voltage stepwise based on the reverse electromotive voltage. The oscillation level comparison circuit receives a feedback voltage corresponding to electric power supplied to a load, and produces a control signal that switches the MOSFET into an OFF state when the feedback voltage exceeds the reference voltage.Type: GrantFiled: March 10, 2006Date of Patent: November 27, 2007Assignee: Sanyo Electric Co., Ltd.Inventors: Yasunari Noguchi, Yoshio Fujimura