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: 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
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Publication number: 20150249347Abstract: A measurement apparatus includes a pseudo-coupling circuit, a power reception circuit, and a characteristics measuring unit. The pseudo-coupling circuit includes a first power-transmission-side terminal, a second power-transmission-side terminal, a first power-reception-side terminal, and a second power-reception-side terminal. A capacitor is connected between the first power-transmission-side terminal and the first power-reception-side terminal. A capacitor is connected between the first power-transmission-side terminal and the second power-transmission-side terminal. A capacitor is connected between the first power-reception-side terminal and the second power-reception-side terminal. A power transmission module to be measured is connected to the first and second power-transmission-side terminals. The power reception circuit and the characteristics measuring unit are connected to the first and second power-reception-side terminals.Type: ApplicationFiled: April 29, 2015Publication date: September 3, 2015Inventor: HIRONOBU TAKAHASHI
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Publication number: 20150155387Abstract: 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: December 1, 2014Publication date: June 4, 2015Inventors: Shunpei Yamazaki, Masahiro KATAYAMA, Chieko MISAWA, Yuka YOKOYAMA, Hironobu TAKAHASHI, Kenichi OKAZAKI
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Patent number: 9035301Abstract: An imaging device that is highly stable to irradiation with radial rays such as X-rays and can inhibit a decrease in electrical characteristics is provided. The imaging device takes an image with radial rays such as X-rays and includes pixel circuits arranged in a matrix and a scintillator overlapping the pixel circuits. The pixel circuits each includes a switching transistor with an extremely small off-state current and a light-receiving element which is configured to convert the radial rays to electrical charges. A gate insulating film of the switching transistor has a stacked structure including a silicon nitride film with a thickness of 100 nm to 400 nm and a silicon oxide film or a silicon oxynitride film with a thickness of 5 nm to 20 nm.Type: GrantFiled: June 13, 2014Date of Patent: May 19, 2015Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Hironobu Takahashi, Yukinori Shima, Yasuharu Hosaka, Toshimitsu Obonai, Masashi Tsubuku
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Publication number: 20150060675Abstract: 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: ApplicationFiled: August 25, 2014Publication date: March 5, 2015Inventors: Kengo AKIMOTO, Junichi KOEZUKA, Hironobu TAKAHASHI
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Publication number: 20140374745Abstract: An imaging device that is highly stable to irradiation with radial rays such as X-rays and can inhibit a decrease in electrical characteristics is provided. The imaging device takes an image with radial rays such as X-rays and includes pixel circuits arranged in a matrix and a scintillator overlapping the pixel circuits. The pixel circuits each includes a switching transistor with an extremely small off-state current and a light-receiving element which is configured to convert the radial rays to electrical charges. A gate insulating film of the switching transistor has a stacked structure including a silicon nitride film with a thickness of 100 nm to 400 nm and a silicon oxide film or a silicon oxynitride film with a thickness of 5 nm to 20 nm.Type: ApplicationFiled: June 13, 2014Publication date: December 25, 2014Inventors: Hironobu TAKAHASHI, Yukinori SHIMA, Yasuharu HOSAKA, Toshimitsu OBONAI, Masashi TSUBUKU
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Publication number: 20140361639Abstract: An electric power receiving apparatus of an electric power transmitting system includes an overvoltage suppressing unit connected in parallel to a resonant circuit. The overvoltage suppressing unit is formed by an impedance element. Impedance of the impedance element is set to such a value that a rise in a voltage across at least one pair of electric power receiving electrodes is suppressed as compared to a case in which the impedance element is not connected, in the process in which coupling capacitance Cm between electric power transmitting electrodes and the electric power receiving electrodes changes from a value held while the electric power transmitting electrodes and the electric power receiving electrodes are in a predetermined positional relationship during normal electric power transmission to substantially zero.Type: ApplicationFiled: August 21, 2014Publication date: December 11, 2014Inventors: Keiichi Ichikawa, Hironobu Takahashi
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Publication number: 20140354084Abstract: An active electrode and a passive electrode provided in a power transmitting apparatus 10 are connected to an inductor provided on the secondary side of a transformer generating an AC voltage and are respectively coupled to an active electrode and a passive electrode of a power receiving apparatus through electric fields. A ground electrode of the power transmitting apparatus faces the active electrode and the passive electrode and a ground electrode of the power receiving apparatus faces the active electrode and the passive electrode. A plurality of openings are formed in such a manner as to form a lattice in each of the ground electrodes.Type: ApplicationFiled: August 20, 2014Publication date: December 4, 2014Inventors: Hironobu Takahashi, Tsutomu Ieki
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Publication number: 20140301718Abstract: A recording and reproducing apparatus that is capable of performing continuous recording includes a receiver that receives broadcasting programs, a recorder on which the broadcasting programs received by the receiver are recorded, a reproducer that reproduces the broadcasting programs recorded on the recorder, and a controller that determines which broadcasting program among the broadcasting programs recorded on the recorder is reproduced by the reproducer, and controls the continuous recording on a basis of record information of the broadcasting program reproduced by the reproducer.Type: ApplicationFiled: April 2, 2014Publication date: October 9, 2014Applicant: FUNAI ELECTRIC CO., LTD.Inventor: Hironobu Takahashi
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Publication number: 20140239183Abstract: 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: ApplicationFiled: February 24, 2014Publication date: August 28, 2014Applicant: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei YAMAZAKI, Kengo AKIMOTO, Hironobu TAKAHASHI, Hiroshi KANEMURA, Akiharu MIYANAGA
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Publication number: 20140175907Abstract: 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: ApplicationFiled: February 25, 2014Publication date: June 26, 2014Applicant: MURATA MANUFACTURING CO., LTD.Inventors: Hironobu Takahashi, Keiichi Ichikawa, Tsutomu Ieki
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Publication number: 20140175906Abstract: 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: ApplicationFiled: December 17, 2013Publication date: June 26, 2014Applicant: MURATA MANUFACTURING CO., LTD.Inventors: Tsuyoshi Suesada, Kazuya Kato, Hironobu Takahashi
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Publication number: 20140159852Abstract: 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: ApplicationFiled: April 25, 2012Publication date: June 12, 2014Applicants: MURATA MANUFACTURING CO., LTD., SUMIDA CORPORATIONInventors: Hiroki Miura, Hironobu Takahashi, Keiichi Ichikawa
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Publication number: 20140023339Abstract: A recording and reproduction device is capable of recording and outputting content including video images and/or audio and includes a history acquisition unit that acquires usage histories by counting, for a specified period of time, data on whether or not a plurality of functions being performed in the background are in a specific usage state, and a display controller that displays, on a specified display unit, a user interface screen that is compiled based on the usage histories and that shows, by time slot, frequencies at which at least the plurality of functions are in the specific usage state.Type: ApplicationFiled: July 12, 2013Publication date: January 23, 2014Inventor: Hironobu TAKAHASHI
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Publication number: 20130334893Abstract: A power transmitting apparatus includes a power transmitting circuit, a passive electrode, and an active electrode. A capacitor represents a capacitance generated by the passive electrode and the active electrode. A voltage step-up circuit and the capacitor form a resonant circuit. The voltage step-up circuit formed of the step-up transformer and the inductor steps up a voltage generated by a voltage conversion circuit and applies the stepped up voltage between the passive electrode and the active electrode. A control IC performs PWM control of the voltage conversion circuit by comparing a rectified and smoothed voltage of a third winding of the step-up transformer with a reference voltage. As a result, an output voltage applied to the load circuit of a power receiving apparatus is stabilized without causing the power receiving apparatus to become complex or large.Type: ApplicationFiled: August 26, 2013Publication date: December 19, 2013Applicant: MURATA MANUFACTURING CO., LTD.Inventor: Hironobu Takahashi
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Publication number: 20130285467Abstract: A power transmission system capable of detecting a point of maximum impedance even when the resonant frequency is a comparatively high frequency and the frequency is swept in a range including a frequency at which the impedance is maximum. The power transmission system includes a power transmission device having a pair of first electrodes and a signal source, and a power reception device having a pair of second electrodes arranged to respectively oppose the first electrodes and are capacitively coupled with the first electrodes, and a load circuit. The power transmission system includes first and second resonant circuits and transmits power at a driving frequency determined by sweeping the frequency of an alternating current signal. The frequency is swept in a preset range and the driving frequency is set to the frequency at which the impedance is maximum measured in the sweeping of the frequency.Type: ApplicationFiled: July 2, 2013Publication date: October 31, 2013Inventor: HIRONOBU TAKAHASHI
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Patent number: 8415664Abstract: Techniques are provided for obtaining a photoelectric conversion device having a favorable spectral sensitivity characteristic and reduced variation in output current without a contamination substance mixed into a photoelectric conversion layer or a transistor, and for obtaining a highly reliable semiconductor device including a photoelectric conversion device. A semiconductor device may include, over an insulating surface, a first electrode; a second electrode; a color filter between the first electrode and the second electrode; an overcoat layer covering the color filter; and a photoelectric conversion layer over the overcoat layer, where one end portion of the photoelectric conversion layer is in contact with the first electrode, and where an end portion of the color filter lies inside the other end portion of the photoelectric conversion layer.Type: GrantFiled: October 12, 2011Date of Patent: April 9, 2013Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Tatsuya Arao, Daiki Yamada, Hidekazu Takahashi, Naoto Kusumoto, Kazuo Nishi, Yuusuke Sugawara, Hironobu Takahashi
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Patent number: 8242585Abstract: The present invention provides a semiconductor device formed over an insulating substrate, typically a semiconductor device having a structure in which mounting strength to a wiring board can be increased in an optical sensor, a solar battery, or a circuit using a TFT, and which can make it mount on a wiring board with high density, and further a method for manufacturing the same. According to the present invention, in a semiconductor device, a semiconductor element is formed on an insulating substrate, a concave portion is formed on a side face of the semiconductor device, and a conductive film electrically connected to the semiconductor element is formed in the concave portion.Type: GrantFiled: December 10, 2010Date of Patent: August 14, 2012Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Kazuo Nishi, Hiroki Adachi, Junya Maruyama, Naoto Kusumoto, Yuusuke Sugawara, Tomoyuki Aoki, Eiji Sugiyama, Hironobu Takahashi
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Patent number: D698047Type: GrantFiled: June 12, 2012Date of Patent: January 21, 2014Assignee: Nichia CorporationInventors: Shimpei Sasaoka, Hironobu Takahashi
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Patent number: D736964Type: GrantFiled: December 2, 2013Date of Patent: August 18, 2015Assignee: Nichia CorporationInventors: Shimpei Sasaoka, Hironobu Takahashi