Patents by Inventor Masashi KICHIMA
Masashi KICHIMA 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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Publication number: 20180337316Abstract: A joint structure and a manufacturing method thereof are provided which can improve heat dissipation properties and which can inhibit damages. A joint structure includes: an insulating substrate and a heat dissipation substrate; a first silver particle layer that is joined to the insulating substrate and that includes a plurality of first silver nanoparticles which are joined; a second silver particle layer that is joined to the heat dissipation substrate and that includes a plurality of second silver nanoparticles which are joined; and a copper particle layer that interposes the first silver particle layer and the second silver particle layer, that is joined to the first silver particle layer and the second silver particle layer, and that includes a plurality of copper nanoparticles which are joined. A particle size of the copper nanoparticles is larger than particle size of both the first silver nanoparticles and the second silver nanoparticles.Type: ApplicationFiled: May 18, 2018Publication date: November 22, 2018Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LT D.Inventors: Ikko KUZUHARA, Masashi KICHIMA
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Patent number: 10024514Abstract: A lighting apparatus to be installed on a mobile object includes: a heat dissipator having a first outer surface and a second outer surface different from the first outer surface; a first light-emitting device thermally coupled to the first outer surface of the heat dissipator; a second light-emitting device thermally coupled to the second outer surface of the heat dissipator; a reflector that reflects light emitted from the first light-emitting device; a first lens that is disposed in a path of light reflected by the reflector and that transmits the light from the reflector along a predetermined lighting direction; and a second lens disposed in a path of light from the second light-emitting device.Type: GrantFiled: February 25, 2016Date of Patent: July 17, 2018Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Yoshihiko Kanayama, Hiro Aoki, Tomoyuki Ogata, Masashi Kichima, Makoto Kai
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Publication number: 20180062059Abstract: A light-emitting module is provided. The light-emitting module includes an insulating substrate. The insulating substrate includes a mounting surface, a rear surface, and a through hole that passes from the mounting surface to the rear surface. A light-emitting element is on the mounting surface. A thermal conductor is disposed in the through hole in contact with an inner wall of the insulating substrate defined by the through hole. The thermal conductor includes a mounting-side end face thermally connected to the light-emitting element, a rear-side end face, and a displacement suppressing portion that suppresses displacement of the thermal conductor in a direction from the rear surface to the mounting surface. thermal conductor. The rear-side end, in a cross-section parallel to the rear surface of the insulating surface, is larger in surface area than the mounting-side end, in a cross-section parallel to the mounting surface of the insulating substrate.Type: ApplicationFiled: August 10, 2017Publication date: March 1, 2018Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventor: Masashi KICHIMA
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Publication number: 20160265734Abstract: A lighting apparatus to be installed on a mobile object includes: a heat dissipator having a first outer surface and a second outer surface different from the first outer surface; a first light-emitting device thermally coupled to the first outer surface of the heat dissipator; a second light-emitting device thermally coupled to the second outer surface of the heat dissipator; a reflector that reflects light emitted from the first light-emitting device; a first lens that is disposed in a path of light reflected by the reflector and that transmits the light from the reflector along a predetermined lighting direction; and a second lens disposed in a path of light from the second light-emitting device.Type: ApplicationFiled: February 25, 2016Publication date: September 15, 2016Inventors: Yoshihiko KANAYAMA, Hiro AOKI, Tomoyuki OGATA, Masashi KICHIMA, Makoto KAI
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Patent number: 9376056Abstract: A power supply device includes a DC power supply circuit configured to output DC power, and a ground-fault determining circuit configured to determine presence or absence of a ground fault at a post-stage of the DC power supply circuit. The ground-fault determining circuit includes a capacitor having an end that is connected with ground, and a diode including an anode and a cathode. The anode is connected with another end of the capacitor, and the cathode is connected with an output end on a high voltage side of the DC power supply circuit. The ground-fault determining circuit further includes a constant voltage source configured to charge the capacitor with a prescribed charging voltage, and a comparator as a determining portion configured to determine presence of the ground fault when a voltage across the capacitor falls below a prescribed determination reference voltage lower than the prescribed charging voltage.Type: GrantFiled: October 29, 2013Date of Patent: June 28, 2016Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Masatoshi Ueno, Toshiaki Nakamura, Kazuya Kato, Masashi Kichima, Masahiro Nishikawa
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Patent number: 9371974Abstract: A lighting device includes: a circuit board placed on a base; and a transformer provided in the circuit board. The transformer includes: a winding pattern formed on the circuit board; and a core having an outer leg portion. The circuit board has an outer leg insertion portion through which the outer leg portion of the core is inserted, and the circuit board and the base have therebetween a gap which is air space. The base and at least a lateral face of the outer leg portion are bonded together by a first resin that is insertable from the outer leg insertion portion.Type: GrantFiled: August 15, 2014Date of Patent: June 21, 2016Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Masahiro Nishikawa, Tomoyuki Nakano, Masatoshi Ueno, Masashi Kichima, Kazuya Kato
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Patent number: 9220160Abstract: Control unit decreases power to be supplied to high-pressure discharge lamp when an output voltage or an output current for high-pressure discharge lamp measured by measurement unit is in an abnormal range. Drive unit driving switching element includes capacitor that supplies, to a control electrode of switching element disposed on high potential side, electric charge necessary for turning on switching element disposed on high potential side when switching element disposed on low potential side is turned off. When high-pressure discharge lamp is started up, a discharge lamp lighting device starts to charge capacitor before DC/DC converter is started to operate, and control unit has a determination period for determining presence/absence of an abnormality based on a measured value acquired by measurement unit in a state in which DC/DC converter and DC/AC inverter are operated after completion of charging of capacitor.Type: GrantFiled: October 17, 2013Date of Patent: December 22, 2015Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Masahiro Nishikawa, Masatoshi Ueno, Kazuya Kato, Masashi Kichima
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Publication number: 20150305129Abstract: Control unit decreases power to be supplied to high-pressure discharge lamp when an output voltage or an output current for high-pressure discharge lamp measured by measurement unit is in an abnormal range. Drive unit driving switching element includes capacitor that supplies, to a control electrode of switching element disposed on high potential side, electric charge necessary for turning on switching element disposed on high potential side when switching element disposed on low potential side is turned off. When high-pressure discharge lamp is started up, a discharge lamp lighting device starts to charge capacitor before DC/DC converter is started to operate, and control unit has a determination period for determining presence/absence of an abnormality based on a measured value acquired by measurement unit in a state in which DC/DC converter and DC/AC inverter are operated after completion of charging of capacitor.Type: ApplicationFiled: October 17, 2013Publication date: October 22, 2015Inventors: Masahiro NISHIKAWA, Masatoshi UENO, Kazuya KATO, Masashi KICHIMA
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Publication number: 20150291088Abstract: A power supply device includes a DC power supply circuit configured to output DC power, and a ground-fault determining circuit configured to determine presence or absence of a ground fault at a post-stage of the DC power supply circuit. The ground-fault determining circuit includes a capacitor having an end that is connected with ground, and a diode including an anode and a cathode. The anode is connected with another end of the capacitor, and the cathode is connected with an output end on a high voltage side of the DC power supply circuit. The ground-fault determining circuit further includes a constant voltage source configured to charge the capacitor with a prescribed charging voltage, and a comparator as a determining portion configured to determine presence of the ground fault when a voltage across the capacitor falls below a prescribed determination reference voltage lower than the prescribed charging voltage.Type: ApplicationFiled: October 29, 2013Publication date: October 15, 2015Inventors: Masatoshi UENO, Toshiaki NAKAMURA, Kazuya KATO, Masashi KICHIMA, Masahiro NISHIKAWA
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Publication number: 20150062951Abstract: A lighting device includes: a circuit board placed on a base; and a transformer provided in the circuit board. The transformer includes: a winding pattern formed on the circuit board; and a core having an outer leg portion. The circuit board has an outer leg insertion portion through which the outer leg portion of the core is inserted, and the circuit board and the base have therebetween a gap which is air space. The base and at least a lateral face of the outer leg portion are bonded together by a first resin that is insertable from the outer leg insertion portion.Type: ApplicationFiled: August 15, 2014Publication date: March 5, 2015Inventors: Masahiro NISHIKAWA, Tomoyuki NAKANO, Masatoshi UENO, Masashi KICHIMA, Kazuya KATO