Patents by Inventor Yoshiaki Akimoto
Yoshiaki Akimoto 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: 11923206Abstract: An object is to provide a display device with excellent display characteristics, where a pixel circuit and a driver circuit provided over one substrate are formed using transistors which have different structures corresponding to characteristics of the respective circuits. The driver circuit portion includes a driver circuit transistor in which a gate electrode layer, a source electrode layer, and a drain electrode layer are formed using a metal film, and a channel layer is formed using an oxide semiconductor. The pixel portion includes a pixel transistor in which a gate electrode layer, a source electrode layer, and a drain electrode layer are formed using an oxide conductor, and a semiconductor layer is formed using an oxide semiconductor. The pixel transistor is formed using a light-transmitting material, and thus, a display device with higher aperture ratio can be manufactured.Type: GrantFiled: November 18, 2022Date of Patent: March 5, 2024Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Junichiro Sakata, Masashi Tsubuku, Kengo Akimoto, Miyuki Hosoba, Masayuki Sakakura, Yoshiaki Oikawa
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Patent number: 8725463Abstract: A frequency spectrum analyzing apparatus for performing a frequency spectrum analysis with respect to a detected value of an operating parameter of an internal combustion engine in synchronism with rotation of the engine, is provided. The operating parameter is sampled at predetermined time intervals, and a sampled value is converted to a digital value. Intensities of first and second elements are calculated with respect to a predetermined number of the sampled values. The first elements and second elements respectively correspond to a plurality of frequency components contained in the detected value, and a phase of the second element differs from a phase of the first element by 90 degrees. Frequency component intensities corresponding to the plurality of frequency components are calculated in synchronism with rotation of the engine, using the first element intensities and the second element intensities.Type: GrantFiled: September 9, 2009Date of Patent: May 13, 2014Assignee: Honda Motor Co., Ltd.Inventors: Natsuko Kitamura, Yoshiaki Akimoto, Jiro Takagi, Atsushi Kurauchi, Masayuki Yoshiiri, Hirotaka Komatsu, Kazuhiko Hirota, Makoto Murakami
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Patent number: 8326518Abstract: A knocking detecting apparatus for an internal combustion engine, which can more accurately perform the knocking determination based on frequency components of the output signal of the knock sensor, is provided. A frequency spectrum analysis of the knock sensor output signal is performed at predetermined angular intervals of the crankshaft rotation angle. Intensities of a plurality of frequency components obtained by the frequency spectrum analysis are stored as time series data. The time series data of the frequency component intensity are binarized, and it is determined whether or not a knocking has occurred based on the binarized time series data.Type: GrantFiled: March 9, 2009Date of Patent: December 4, 2012Assignee: Honda Motor Co., Ltd.Inventors: Hirotaka Komatsu, Jiro Takagi, Atsushi Kurauchi, Masayuki Yoshiiri, Kazuhiko Hirota, Natsuko Kitamura, Yoshiaki Akimoto
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Publication number: 20110178750Abstract: A frequency spectrum analyzing apparatus for performing a frequency spectrum analysis with respect to a detected value of an operating parameter of an internal combustion engine in synchronism with rotation of the engine, is provided. The operating parameter is sampled at predetermined time intervals, and a sampled value is converted to a digital value. Intensities of first and second elements are calculated with respect to a predetermined number of the sampled values. The first elements and second elements respectively correspond to a plurality of frequency components contained in the detected value, and a phase of the second element differs from a phase of the first element by 90 degrees. Frequency component intensities corresponding to the plurality of frequency components are calculated in synchronism with rotation of the engine, using the first element intensities and the second element intensities.Type: ApplicationFiled: September 9, 2009Publication date: July 21, 2011Applicant: HONDA MOTOR CO., LTD.Inventors: Natsuko Kitamura, Yoshiaki Akimoto, Jiro Takagi, Atsushi Kurauchi, Masayuki Yoshiiri, Hirotaka Komatsu, Kazuhiko Hirota, Makoto Murakami
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Publication number: 20110118960Abstract: A knocking detecting apparatus for an internal combustion engine, which can more accurately perform the knocking determination based on frequency components of the output signal of the knock sensor, is provided. A frequency spectrum analysis of the knock sensor output signal is performed at predetermined angular intervals of the crankshaft rotation angle. Intensities of a plurality of frequency components obtained by the frequency spectrum analysis are stored as time series data. The time series data of the frequency component intensity are binarized, and it is determined whether or not a knocking has occurred based on the binarized time series data.Type: ApplicationFiled: March 9, 2009Publication date: May 19, 2011Applicant: HONDA MOTOR CO., LTD.Inventors: Hirotaka Komatsu, Jiro Takagi, Atsushi Kurauchi, Masayuki Yoshiri, Kazuhiko Hirota, Natsuko Kitamura, Yoshiaki Akimoto
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Patent number: 6536266Abstract: Pairs of sensors are disposed vertically, each pair of sensors being disposed such that they hold a piston laterally, and those pistons are provided in such a manner as to extend across a water jacket provided so as to surround a cylinder liner defining a cylinder chamber receiving therein the piston. Since sensor accommodating cases extend across the water jacket, the accommodating case can preferably be cooled by cooling water, and the sensors can in turn be cooled via the accommodating cases, whereby the effect of heat from combustion chambers on the sensors can be reduced, thereby making it possible to improve the detection accuracy of the sensors.Type: GrantFiled: May 19, 2000Date of Patent: March 25, 2003Assignee: Honda Giken Kogyo Kabushiki KaishaInventor: Yoshiaki Akimoto
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Patent number: 6324961Abstract: Oil passages 12 for lubricating and cooling a piston pin 10 are provided in such a manner as to each open to an oil ring groove 5 of a piston 1 and to a piston inner side surface 2b of a piston pin supporting part 2 at portions in the vicinity of an upper end of a piston-pin hole 2a through the piston pin supporting part 2. The oil passages 12 are provided diagonally relative to an axis of the piston-pin hole 2a.Type: GrantFiled: February 18, 2000Date of Patent: December 4, 2001Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Yoshiaki Akimoto, Hideo Ueshima, Yukihiro Noguchi, Hideaki Miyashita
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Patent number: 5131369Abstract: A system for controlling ignition timing of a vehicle internal combustion engine, in which a plurality of sets of ignition timing control characteristics are established in response to the octane numbers of different kinds of fuel which may intentionally or unintentionally be used in the vehicle. The system infers the octane number of the fuel being used from the occurrence state of knock and selects the set of control characteristics corresponding to the selected fuel octane number, whereafter it determines the ignition timing based on the selected set of control characteristics.Type: GrantFiled: July 29, 1991Date of Patent: July 21, 1992Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Masaki Kanehiro, Yukio Miyashita, Yoshiaki Akimoto
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Patent number: 4960094Abstract: A knocking control system for an internal combustion engine with inlet valves and exhaust valves having valve timing thereof controlled depending on operating conditions of the engine. It is determined whether or not knocking has occurred in the engine on the basis of a detection parameter indicative of knocking and at least one discrimination parameter. The operation of the engine is controlled by the use of at least one control parameter in response to the determination result, so as to eleminate knocking. The values of the discrimination and control parameters are selected in accordance with the actual valve timing. When abnormality in the valve timing control is detected, the valve timing is held at predetermined valve timing irrespective of engine operating conditions, and values of the at least one discriminating parameter and the at least one control parameter are selected, which correspond to the held predetermined valve timing.Type: GrantFiled: October 10, 1989Date of Patent: October 2, 1990Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Yuzuru Koike, Yukio Miyashita, Yoshiaki Akimoto, Yasunari Seki, Isao Yahata
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Patent number: 4822789Abstract: Disclosed is a method for producing a renal function-improving and diuretic effects on a warm-blooded animal which comprises administering to the warm-blooded animal a therapeutically effective amount of 2-(4-methoxyphenyl)-3-acetoxy-5-[2-(dimethylamino)ethyl]-8-chloro-2,3-dihy dro-1,5-benzothiazepin-4(5H)-one or a pharmaceutically acceptable acid addition salt thereof.Type: GrantFiled: February 1, 1988Date of Patent: April 18, 1989Assignee: Tanabe Seiyaku Co., Ltd.Inventors: Isao Yamaguchi, Yoshiaki Akimoto, Taku Nagao