Patents by Inventor Satoshi Murakami
Satoshi Murakami 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: 20190129214Abstract: A structure for preventing deteriorations of a light-emitting device and retaining sufficient capacitor elements (condenser) required by each pixel is provided. A first passivation film, a second metal layer, a flattening film, a barrier film, and a third metal layer are stacked in this order over a transistor. A side face of a first opening provided with the flattening film is covered by the barrier film, a second opening is formed inside the first opening, and a third metal layer is connected to a semiconductor via the first opening and the second opening. A capacitor element that is formed of a lamination of a semiconductor of a transistor, a gate insulating film, a gate electrode, the first passivation film, and the second metal layer is provided.Type: ApplicationFiled: November 16, 2018Publication date: May 2, 2019Inventors: Shunpei YAMAZAKI, Toru TAKAYAMA, Satoshi MURAKAMI, Hajime KIMURA
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Patent number: 10277139Abstract: A transformer is composed of three or more windings magnetically coupled. An AC/DC converter (2) for converting AC power of an AC power supply (1), a capacitor (3), and a switching circuit (4) are connected to one winding (6a), and a switching circuit (8) or (30) for power conversion of a DC power supply is connected to at least one of the other windings. Voltage of the capacitor (3) or the AC power supply (1) is detected. On the basis of the detected value thereof, the operation state of each switching circuit (4), (8), (30) is determined by an operation state determination circuit (101). On the basis of a result of the determination, the power supply is switched among the AC power supply (1) and the DC power supplies (11) and (34) by an output switch circuit (103).Type: GrantFiled: May 8, 2015Date of Patent: April 30, 2019Assignee: Mitsubishi Electric CorporationInventors: Takaaki Takahara, Satoshi Murakami, Ryota Kondo, Masaki Yamada, Naohisa Uehara
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Patent number: 10263534Abstract: A power conversion device includes a reactor, a single-phase inverter, and a single-phase converter which are connected in series to each other between an AC power supply and a smoothing capacitor, and performs power conversion between AC voltage of the AC power supply and DC voltage of the smoothing capacitor. The power conversion device includes a control unit which controls switch elements of the single-phase inverter and switch elements of the single-phase converter so that charging operation and discharging operation of the DC capacitor are performed in one switching cycle of the single-phase inverter and the charging amount and the discharging amount thereof are equal to each other.Type: GrantFiled: August 29, 2016Date of Patent: April 16, 2019Assignee: Mitsubishi Electric CorporationInventors: Takaaki Takahara, Ryota Kondo, Satoshi Murakami, Hajime Toyoda
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Publication number: 20190083361Abstract: A tablet printing device applies print processing to a tablet having an engraved mark display with a recessed groove part. The tablet printing device includes a conveying disk that conveys the tablet while sucking and supporting a side surface of the tablet and an inkjet head capable of applying print processing to the front and back surfaces of the tablet conveyed by the conveying disk. The inkjet head applies print processing to the recessed grooved part of the engraved mark display based on engraving position data obtained by a print surface inspection device. Print processing is performed along the engraved mark display, with the result that the engraved mark display is made clear, significantly improving the visibility thereof.Type: ApplicationFiled: February 27, 2017Publication date: March 21, 2019Inventors: Kiyoshi IMAI, Eiichi HACHIYA, Akira MOURI, Satoshi MURAKAMI
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Publication number: 20190067336Abstract: It is an object of the present invention to provide a semiconductor display device having an interlayer insulating film which can obtain planarity of a surface while controlling film formation time, can control treatment time of heating treatment with an object of removing moisture, and can prevent moisture in the interlayer insulating film from being discharged to a film or an electrode adjacent to the interlayer insulating film. An inorganic insulating film containing nitrogen, which is less likely to transmit moisture compared with an organic resin, is formed so as to cover a TFT. Next, an organic resin film containing photosensitive acrylic resin is applied to the organic insulting film, and the organic resin film is partially exposed to light to be opened. Thereafter, an inorganic insulting film containing nitrogen, which is less likely to transmit moisture compared with an organic resin, is fanned so as to cover the opened organic resin film.Type: ApplicationFiled: August 21, 2018Publication date: February 28, 2019Inventors: Shunpei YAMAZAKI, Satoshi MURAKAMI, Masahiko HAYAKAWA, Kiyoshi KATO, Mitsuaki OSAME
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Patent number: 10211745Abstract: A first winding, a second winding, a fourth winding, and a fifth winding functioning as a transformer are wound around respective side legs of a three-leg core. Third windings functioning as a DC reactor are wound around a center leg. Winding directions of the first winding, the second winding, and the third windings are set so that magnetic fluxes generated by DC currents flowing through the respective windings merge in the same direction at the center leg, and winding directions of the fourth winding and the fifth winding are set so that magnetic fluxes generated by AC currents flowing through the respective windings cancel each other at the center leg. Thus, the transformer and the DC reactor are integrated using the three-leg core, whereby size reduction and loss reduction of the integrated magnetic component are achieved.Type: GrantFiled: October 11, 2016Date of Patent: February 19, 2019Assignee: Mitsubishi Electric CorporationInventors: Satoshi Murakami, Masaki Yamada, Ryota Kondo, Takaaki Takahara, Yuta Komatsu
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Publication number: 20190043896Abstract: A display device including a semiconductor element is provided.Type: ApplicationFiled: August 8, 2018Publication date: February 7, 2019Inventors: Satoshi MURAKAMI, Masahiko HAYAKAWA, Shunpei YAMAZAKI
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Publication number: 20190006952Abstract: A power conversion device includes a reactor, a single-phase inverter, and a single-phase converter which are connected in series to each other between an AC power supply and a smoothing capacitor, and performs power conversion between AC voltage of the AC power supply and DC voltage of the smoothing capacitor. The power conversion device includes a control unit which controls switch elements of the single-phase inverter and switch elements of the single-phase converter so that charging operation and discharging operation of the DC capacitor are performed in one switching cycle of the single-phase inverter and the charging amount and the discharging amount thereof are equal to each other.Type: ApplicationFiled: August 29, 2016Publication date: January 3, 2019Applicant: Mitsubishi Electric CorporationInventors: Takaaki TAKAHARA, Ryota KONDO, Satoshi MURAKAMI, Hajime TOYODA
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Patent number: 10164546Abstract: An electric power conversion device which performs conversion to desired voltage using charge and discharge of a DC capacitor includes: a reactor connected to a rectification circuit; a leg part in which diodes and first and second switching elements are connected in series between positive and negative terminals of a smoothing capacitor, and to which the reactor is connected; and the DC capacitor. A control circuit performs high-frequency PWM control for the first and second switching elements using the same drive cycle, with their reference phases shifted from each other by a half cycle, and controls a sum and a ratio of ON periods of the first and second switching elements in one cycle, thereby allowing both high-power-factor control for input AC current and voltage control for the DC capacitor.Type: GrantFiled: June 3, 2014Date of Patent: December 25, 2018Assignee: Mitsubishi Electric CorporationInventors: Ryota Kondo, Takaaki Takahara, Satoshi Murakami, Masaki Yamada, Naohisa Uehara, Yuuya Tanaka, Hidehiko Kinoshita
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Publication number: 20180350513Abstract: A first winding, a second winding, a fourth winding, and a fifth winding functioning as a transformer are wound around respective side legs of a three-leg core. Third windings functioning as a DC reactor are wound around a center leg. Winding directions of the first winding, the second winding, and the third windings are set so that magnetic fluxes generated by DC currents flowing through the respective windings merge in the same direction at the center leg, and winding directions of the fourth winding and the fifth winding are set so that magnetic fluxes generated by AC currents flowing through the respective windings cancel each other at the center leg. Thus, the transformer and the DC reactor are integrated using the three-leg core, whereby size reduction and loss reduction of the integrated magnetic component are achieved.Type: ApplicationFiled: October 11, 2016Publication date: December 6, 2018Applicant: Mitsubishi Electric CorporationInventors: Satoshi MURAKAMI, Masaki YAMADA, Ryota KONDO, Takaaki TAKAHARA, Yuta KOMATSU
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Patent number: 10133139Abstract: A structure for preventing deteriorations of a light-emitting device and retaining sufficient capacitor elements (condenser) required by each pixel is provided. A first passivation film, a second metal layer, a flattening film, a barrier film, and a third metal layer are stacked in this order over a transistor. A side face of a first opening provided with the flattening film is covered by the barrier film, a second opening is formed inside the first opening, and a third metal layer is connected to a semiconductor via the first opening and the second opening. A capacitor element that is formed of a lamination of a semiconductor of a transistor, a gate insulating film, a gate electrode, the first passivation film, and the second metal layer is provided.Type: GrantFiled: October 10, 2014Date of Patent: November 20, 2018Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Toru Takayama, Satoshi Murakami, Hajime Kimura
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Patent number: 10128754Abstract: In a power conversion apparatus including first to fourth semiconductor switching elements connected in series across both terminals of a high voltage-side capacitor, the third and fourth semiconductor switching elements are connected across both terminals of a low voltage-side capacitor via a reactor, and both terminals of the second and third semiconductor switching elements are connected across a charging-discharging capacitor. This charging-discharging capacitor includes a plurality of capacitor elements connected in parallel via a first wiring and a second wiring. Inductance components or capacitance components of the plurality of capacitor elements when viewed from an outflow-inflow portion of the first wiring and an outflow-inflow portion of the second wiring are different from each other such that the charging-discharging capacitor does not have a parallel resonance point in a driving frequency band but has a parallel resonance point in a noise frequency band.Type: GrantFiled: March 6, 2017Date of Patent: November 13, 2018Assignee: Mitsubishi Electric CorporationInventors: Kengo Nishimura, Satoshi Ishibashi, Yuta Komatsu, Satoshi Murakami
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Patent number: 10103211Abstract: In the case where a material containing an alkaline-earth metal in a cathode, is used, there is a fear of the diffusion of an impurity ion (such as alkaline-earth metal ion) from the EL element to the TFT being generated and causing the variation of characteristics of the TFT. Therefore, as the insulating film provided between TFT and EL element, a film containing a material for not only blocking the diffusion of an impurity ion such as an alkaline-earth metal ion but also aggressively absorbing an impurity ion such as an alkaline-earth metal ion is used.Type: GrantFiled: August 4, 2017Date of Patent: October 16, 2018Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Satoshi Murakami, Mitsuhiro Ichijo, Taketomi Asami
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Patent number: 10096795Abstract: It is an object of the present invention to provide a technology for manufacturing a highly reliable display device at a low cost with high yield. In the present invention, a spacer is formed over a pixel electrode, thereby protecting the pixel electrode layer from a mask in formation of an electroluminescent layer. In addition, since a layer that includes an organic material that has water permeability is sealed in a display device with a sealing material and the sealing material and the layer that includes the organic material are not in contact, deterioration of a light-emitting element due to a contaminant such as water can be prevented. The sealing material is formed in a portion of a driver circuit region in the display device, and thus, the narrower frame margin of the display device can also be accomplished.Type: GrantFiled: September 12, 2016Date of Patent: October 9, 2018Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Satoshi Murakami, Hisashi Ohtani, Shunpei Yamazaki
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Patent number: 10083995Abstract: It is an object of the present invention to provide a semiconductor display device having an interlayer insulating film which can obtain planarity of a surface while controlling film formation time, can control treatment time of heating treatment with an object of removing moisture, and can prevent moisture in the interlayer insulating film from being discharged to a film or an electrode adjacent to the interlayer insulating film. An inorganic insulating film containing nitrogen, which is less likely to transmit moisture compared with an organic resin, is formed so as to cover a TFT. Next, an organic resin film containing photosensitive acrylic resin is applied to the organic insulting film, and the organic resin film is partially exposed to light to be opened. Thereafter, an inorganic insulting film containing nitrogen, which is less likely to transmit moisture compared with an organic resin, is formed so as to cover the opened organic resin film.Type: GrantFiled: May 18, 2017Date of Patent: September 25, 2018Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Satoshi Murakami, Masahiko Hayakawa, Kiyoshi Kato, Mitsuaki Osame
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Publication number: 20180236760Abstract: A tablet printing device includes a first conveying disk that conveys a tablet while sucking and supporting a side surface of the tablet and an inkjet head capable of applying print processing to the front and back surfaces of the tablet conveyed by the conveying disk. The tablet is conveyed while being supported by a second conveying disk at its front and back surfaces and subjected to inspection of the side surface by a side surface inspection device. The tablet is transferred from the second conveying disk to the first conveying disk at a tablet delivery part and then supported by a suction hole formed in an end surface of the first conveying disk with the front and back surfaces fully exposed. The front and back surfaces are subjected to print processing ead, followed by print inspection, and only a non-defective tablet is discharged through a non-defective tablet discharge part.Type: ApplicationFiled: August 1, 2016Publication date: August 23, 2018Inventors: Kiyoshi IMAI, Satoshi MURAKAMI, Mutsuhito YONETA, Yoshito SAJI
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Patent number: 10050065Abstract: A display device including a semiconductor element is provided.Type: GrantFiled: July 11, 2016Date of Patent: August 14, 2018Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Satoshi Murakami, Masahiko Hayakawa, Shunpei Yamazaki
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Patent number: 10050299Abstract: A metal foil extending outward from electrode plates stacked in a layered manner is sandwiched between a first metal member provided with damping portions and a second metal member, and ultrasonic vibration is caused to act upon a plurality of sites of action from the first metal member side to join the metal foil to the first and second metal members. Each damping portion includes at least one of a cutaway portion formed by cutting away part of the first metal member, a thick-walled portion formed by partially increasing the plate thickness of the first metal member, and a convex ridge portion formed by bending part of the first metal member into a convex ridge shape.Type: GrantFiled: August 2, 2013Date of Patent: August 14, 2018Assignee: GS YUASA INTERNATIONAL LTDInventors: Satoshi Murakami, Shinsuke Yoshitake, Tomonori Kishimoto, I
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Patent number: 10044278Abstract: This power conversion device includes a rectification circuit, a reactor, an inverter circuit, and an isolation transformer. The inverter circuit is composed of a first leg A, a second leg B, and a DC capacitor connected in parallel between DC buses. A first AC end of the first leg A is connected to a positive DC terminal of the rectification circuit via the reactor. High power factor control of current iac flowing from an AC power supply via the rectification circuit is performed by PWM control for the first leg A, and voltage Vdc of the DC capacitor is controlled by PWM control for the second leg B using a duty cycle equal to or smaller than that for the first leg A, thereby controlling power outputted to the secondary side of the isolation transformer.Type: GrantFiled: March 6, 2015Date of Patent: August 7, 2018Assignee: Mitsubishi Electric CorporationInventors: Ryota Kondo, Takaaki Takahara, Satoshi Murakami, Masaki Yamada, Naohisa Uehara, Hidehiko Kinoshita
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Patent number: 10003067Abstract: At least a connector of a current collecting member that is welded to an electrode plate of an electrode assembly is constituted by a rolled material, and the current collecting member and the electrode assembly are bonded to each other by vibration welding.Type: GrantFiled: August 27, 2013Date of Patent: June 19, 2018Assignee: GS YUASA INTERNATIONAL LTD.Inventors: Shinsuke Yoshitake, Satoshi Murakami, Tomonori Kishimoto