Patents by Inventor Hironobu Takahashi
Hironobu Takahashi 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: 20170194503Abstract: A highly reliable semiconductor device which uses an oxide semiconductor film for a backplane is provided. A semiconductor device includes a first conductive film, a first insulating film over the first conductive film, an oxide semiconductor film which is over the first insulating film and overlaps with the first conductive film, a second insulating film over the oxide semiconductor film, and a pair of second conductive films electrically connected to the oxide semiconductor film through an opening portion included in the second insulating film. The second insulating film overlaps with a region of the oxide insulating film in which a carrier flows between the pair of second conductive films and overlaps with end portions of the oxide semiconductor film.Type: ApplicationFiled: March 17, 2017Publication date: July 6, 2017Applicant: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Masahiro KATAYAMA, Chieko MISAWA, Yuka YOKOYAMA, Hironobu TAKAHASHI, Kenichi OKAZAKI
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Patent number: 9685794Abstract: When power transmitting electrodes of a power transmitting apparatus are respectively facing power receiving electrodes of a power receiving apparatus, a composite resonant circuit including a series resonant circuit and a parallel resonant circuit is formed through a compound capacitance formed between the power transmitting electrodes and the power receiving electrodes. In a predetermined mutually facing state in which the compound capacitance becomes maximum, the impedances of the configuration components of the composite resonant circuit are set such that a resonant frequency at which the impedance of the composite resonant circuit from a signal generator side when inputs of a load circuit is short-circuited becomes locally minimum, becomes higher than a resonant frequency at which the impedance of the composite resonant circuit as seen from the signal generator side when the inputs of the load circuit are open becomes locally maximum.Type: GrantFiled: April 30, 2015Date of Patent: June 20, 2017Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Hironobu Takahashi, Keiichi Ichikawa, Tsuyoshi Suesada
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Patent number: 9601634Abstract: A highly reliable semiconductor device which uses an oxide semiconductor film for a backplane is provided. A semiconductor device includes a first conductive film, a first insulating film over the first conductive film, an oxide semiconductor film which is over the first insulating film and overlaps with the first conductive film, a second insulating film over the oxide semiconductor film, and a pair of second conductive films electrically connected to the oxide semiconductor film through an opening portion included in the second insulating film. The second insulating film overlaps with a region of the oxide insulating film in which a carrier flows between the pair of second conductive films and overlaps with end portions of the oxide semiconductor film.Type: GrantFiled: December 1, 2014Date of Patent: March 21, 2017Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Masahiro Katayama, Chieko Misawa, Yuka Yokoyama, Hironobu Takahashi, Kenichi Okazaki
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Patent number: 9473212Abstract: In a power transmitter device, a power transmitter side active electrode and a power transmitter side passive electrode are formed. In a power receiver device, a power receiver side active electrode and a power receiver side passive electrode are formed. The power transmitter side active electrode is rectangle that is shorter in a first direction and longer in a second direction. The power receiver side active electrode is rectangle that is longer in the first direction and shorter in the second direction. The power transmitter side active electrode and the power receiver side active electrode are formed so as that lengths of overlapping area in the first and second directions do not change in a placement receivable area on the power transmitter device, within which the power receiver device is allowed to be displaced.Type: GrantFiled: December 17, 2013Date of Patent: October 18, 2016Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Tsuyoshi Suesada, Kazuya Kato, Hironobu Takahashi
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Patent number: 9461507Abstract: A power transmitting apparatus includes an active electrode, a passive electrode, a voltage generating circuit that applies a voltage between the active electrode and the passive electrode, and a reference potential electrode connected to a reference potential. A power receiving apparatus includes an active electrode, a passive electrode, a secondary battery connected between the active electrode and the passive electrode, and a reference potential electrode connected to a reference potential. Power is transmitted from the power transmitting apparatus to the power receiving apparatus as a result of the respective electrodes facing each other and being capacitively coupled to each other when the power receiving apparatus is mounted to the power transmitting apparatus.Type: GrantFiled: February 25, 2014Date of Patent: October 4, 2016Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Hironobu Takahashi, Keiichi Ichikawa, Tsutomu Ieki
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Publication number: 20160279292Abstract: Provided are layered cell sheets, comprising a plurality of layered cell sheets containing myoblasts, in which each cell sheet comprises cell population containing myoblasts with controlled orientations. Preferably provided are the layered cell sheets comprising a region in which the orientations of the cell population containing the myoblasts in each cell sheet are identical to each other.Type: ApplicationFiled: March 11, 2014Publication date: September 29, 2016Inventors: Hironobu TAKAHASHI, Tatsuya SHIMIZU, Teruo OKANO
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Publication number: 20160270697Abstract: In a sensor device which detects pressure variations owing to displacements of a body surface of a subject by respiration through variations of the output impedance of a piezoelectric vibrator, the pressure variations owing to displacements can be more efficiently transmitted to the piezoelectric vibrator. The sensor device, attached to a subject's body surface and detecting displacements of the body surface accompanying respiration of the subject, comprises a contact piece having a contact surface which contacts the body surface when the sensor device is attached to the body surface; a displacement-signal convertor which is connected with the contact piece and converts the displacements of the body surface into electrical signals; and an outputting device which outputs the electrical signals to an external unit; wherein the contact surface of the contact piece is a curved surface projecting outward in a direction from its periphery to its center.Type: ApplicationFiled: March 17, 2016Publication date: September 22, 2016Inventors: Yoshiyuki HATAKEYAMA, Kazuhide SHIGETO, Hirokazu KIKUCHI, Shigemasa OHYA, Tukasa NAITOU, Hironobu TAKAHASHI, Takahiro SUZUKI
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Publication number: 20160270698Abstract: In a sensor device which detects pressure variations owing to displacements of a body surface of a subject by respiration through variations of the output impedance of a piezoelectric vibrator, the pressure variations can be more efficiently transmitted to the piezoelectric vibrator. The sensor device, attached to a subject's body surface, comprises a contact piece contacting the body surface; a displacement-signal convertor which converts the displacements of the body surface into electrical signals; and an outputting device which outputs the electrical signals to an external unit; the sensor device is clamped between the body surface of the subject and an upper edge portion of a subject's bottom garment, and the contact piece is arranged in one side surface of a housing, and a stopping member which can be attached with the upper edge portion of the bottom garment in the other side surface of the housing.Type: ApplicationFiled: March 17, 2016Publication date: September 22, 2016Inventors: Yoshiyuki HATAKEYAMA, Kazuhide SHIGETO, Hirokazu KIKUCHI, Shigemasa OHYA, Tukasa NAITOU, Hironobu TAKAHASHI, Takahiro SUZUKI
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Patent number: 9376998Abstract: A device for controlling a vehicle is configured to determine whether or not a relay is fixedly closed before a vehicle travels and after a driver operates an ignition, and the driving of a starter motor and an SSG motor is inhibited when the relay is determined to be fixedly closed.Type: GrantFiled: February 25, 2013Date of Patent: June 28, 2016Assignee: Nissan Motor Co., Ltd.Inventors: Kouichi Mori, Hironobu Takahashi
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Patent number: 9360564Abstract: To provide an imaging device that is highly stable when exposed to radiation such as X-rays. The imaging device includes a substrate, a pixel circuit, and a scintillator which are stacked in order. The pixel circuit includes a light-receiving element and a circuit portion electrically connected to the light-receiving element. The substrate is provided with a heater. A transistor in the pixel circuit is heated by the passage of a current through the heater at times other than imaging, thus, degradation of the electrical characteristics of the transistor due to X-ray irradiation can be recovered.Type: GrantFiled: August 25, 2014Date of Patent: June 7, 2016Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Kengo Akimoto, Junichi Koezuka, Hironobu Takahashi
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Patent number: 9341722Abstract: An imaging device which is highly stable to irradiation with radiations such as X-rays and can inhibit a decrease in electrical characteristics is provided. The imaging device obtains an image using radiations such as X-rays and includes pixel circuits which are arranged in a matrix and which a scintillator overlaps. Each of the pixel circuits includes a switching transistor whose off-state current is extremely low and a light-receiving element. A shielding layer formed using a metal material and the like overlaps the transistor and the light-receiving element. With the structure, an imaging device which is highly stable to irradiation with radiations such as X-rays and can inhibit a decrease in electrical characteristics can be provided.Type: GrantFiled: February 24, 2014Date of Patent: May 17, 2016Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Kengo Akimoto, Hironobu Takahashi, Hiroshi Kanemura, Akiharu Miyanaga
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Publication number: 20160126754Abstract: A power transmission system is disclosed in which power is transmitted from a power transmission apparatus to a power receiving apparatus by electric field coupling between active and passive electrodes. The power transmission apparatus includes a step-up/down circuit for stepping up or down a direct voltage and an inverter circuit for converting the direct voltage into an alternating voltage that is output to the active and passive electrodes. The power transmission apparatus controls the step-up/down circuit to sweep a transformation ratio M=Vo1/Vin and detects the ratio M when an input power Pin of the step-up/down circuit is a minimum. The power transmission apparatus drives the step-up/down circuit to obtain the ratio M and perform the power transmission. As a result, there is provided a power transmission system capable of efficiently performing power transmission regardless of the change in a load in the power receiving apparatus.Type: ApplicationFiled: January 12, 2016Publication date: May 5, 2016Inventors: Keiichi Ichikawa, Tsuyoshi Suesada, Henri Bondar, Hironobu Takahashi
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Patent number: 9245682Abstract: To greatly improve the productivity, the general versatility, the downsizing, the performance and the like, as compared to those of the conventional transformer, provided is a transformer including: a core; a primary winding; a secondary winding; a bobbin provided with a low voltage side coil winding portion and a high voltage side coil winding portion, wherein the secondary winding is wound onto each of the coil winding portions; and a casing disposed so as to cover an outer periphery of the bobbin, wherein the primary winding is wound onto a portion of an outer periphery of the casing corresponding to a position of the low voltage side coil winding portion.Type: GrantFiled: April 25, 2012Date of Patent: January 26, 2016Assignee: SUMIDA CORPORATIONInventors: Hiroki Miura, Hironobu Takahashi, Keiichi Ichikawa
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Publication number: 20150372505Abstract: A power transmission device includes a casing, an active electrode, a passive electrode, a first dielectric and a second dielectric. The casing forms an outer wall of the power transmission device. The active electrode is arranged inside the casing. The passive electrode is arranged close to the active electrode inside the casing. The first dielectric is arranged between the casing and the active electrode. The second dielectric is arranged between the casing and the passive electrode. A dielectric constant of the second dielectric is higher than a dielectric constant of the first dielectric. Thus, a capacitance is secured between the passive electrodes without making the surface areas of the passive electrodes excessively large.Type: ApplicationFiled: August 28, 2015Publication date: December 24, 2015Inventor: Hironobu TAKAHASHI
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Publication number: 20150372540Abstract: A power transmission device includes a power-transmission-side active electrode and a power-transmission-side passive electrode. A power reception device includes a power-reception-side active electrode and a power-reception-side passive electrode. The power transmission device and the power reception device can be shifted along an X axis up to a maximum shift distance from a standard arrangement where electrode centers of the power-transmission-side active electrode and the power-reception-side active electrode oppose and are superposed with each other while maintaining the opposition surface area between the power-transmission-side active electrode and the power-reception-side active electrode.Type: ApplicationFiled: June 24, 2015Publication date: December 24, 2015Inventors: HIRONOBU TAKAHASHI, Tsutomu Ieki
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Publication number: 20150364513Abstract: An imaging device with high imaging quality capable of being manufactured at low cost is provided. The imaging device includes a first transistor, a second transistor, a third transistor, a fourth transistor, a photodiode, and a capacitor. Each of the first to the fourth transistors includes a first gate electrode and a second gate electrode, and the second gate electrode of each of the first to the fourth transistors and one electrode of the capacitor are electrically connected to an anode electrode of the photodiode.Type: ApplicationFiled: June 5, 2015Publication date: December 17, 2015Inventors: Hironobu TAKAHASHI, Yukinori SHIMA, Kengo AKIMOTO, Junichi KOEZUKA, Naoto KUSUMOTO
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Publication number: 20150326141Abstract: A circuit module equipped with a primary coil of a step-down transformer formed by primary coils of a plurality of transformer elements connected in series with each other and a secondary coil formed by secondary coils of the transformer elements connected in series with each other, includes a printed substrate on which the transformer elements are mounted in a lengthwise direction, a connection terminal coupled to a first end of the primary coil of the step-down transformer and connection terminals coupled to the secondary coil of the step-down transformer, the connection terminals are positioned such that the transformer elements are interposed therebetween. As a result, provided are a transformer module that reduces the effect of a high-voltage portion on a low-voltage portion by securing a distance between the high-voltage portion and the low-voltage portion, and a power reception device and a power transmission device equipped with the transformer module.Type: ApplicationFiled: July 23, 2015Publication date: November 12, 2015Inventors: Hironobu Takahashi, Tsutomu leki, Fumikiyo Kawahara
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Publication number: 20150300308Abstract: A device for controlling a vehicle is configured to determine whether or not a relay is fixedly closed before a vehicle travels and after a driver operates an ignition, and the driving of a starter motor and an SSG motor is inhibited when the relay is determined to be fixedly closed.Type: ApplicationFiled: February 25, 2013Publication date: October 22, 2015Inventors: Kouichi MORI, Hironobu TAKAHASHI
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Publication number: 20150301636Abstract: A flexible display device with high viewability is provided. The display device includes a first substrate, a second substrate, a first element layer, and a second element layer. The first element layer is positioned between the first substrate and the second substrate. The second element layer is positioned between the first substrate and the second substrate. The first element layer and the second element layer overlap with each other in a region. The first substrate and the second substrate have flexibility. The first element layer includes a display element and a first circuit. The display element is electrically connected to the first circuit. The second element layer includes a sensor element. The sensor element has a function of sensing distortion.Type: ApplicationFiled: April 14, 2015Publication date: October 22, 2015Applicant: Semiconductor Energy Laboratory Co., Ltd.Inventors: Kengo Akimoto, Hironobu Takahashi, Yuki Okamoto, Isamu Shigemori
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Publication number: 20150270720Abstract: When power transmitting electrodes of a power transmitting apparatus are respectively facing power receiving electrodes of a power receiving apparatus, a composite resonant circuit including a series resonant circuit and a parallel resonant circuit is formed through a compound capacitance formed between the power transmitting electrodes and the power receiving electrodes. In a predetermined mutually facing state in which the compound capacitance becomes maximum, the impedances of the configuration components of the composite resonant circuit are set such that a resonant frequency at which the impedance of the composite resonant circuit from a signal generator side when inputs of a load circuit is short-circuited becomes locally minimum, becomes higher than a resonant frequency at which the impedance of the composite resonant circuit as seen from the signal generator side when the inputs of the load circuit are open becomes locally maximum.Type: ApplicationFiled: April 30, 2015Publication date: September 24, 2015Inventors: Hironobu Takahashi, Keiichi Ichikawa, Tsuyoshi Suesada