Patents by Inventor Taku Nakamura
Taku Nakamura 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: 8170111Abstract: Data of both MPEG-2 and MPEG-4 is generated simultaneously with a small circuit scale and a small power consumption. A moving picture encoding apparatus for encoding a moving picture through motion-compensated inter-frame prediction has: a MPEG-2 encoding unit including a motion vector estimator, a frame memory, a forward prediction circuit, a bidirectional prediction circuit, a prediction selection circuit, an intra-frame encoding circuit and a local decoding circuit; a MPEG-4 encoding unit including a frame extraction circuit for extracting a predetermined MPEG-2 frame and a transcoder for encoding the extracted frame; a motion vector calculator calculating a motion vector to be used for MPEG-4 prediction from a motion vector to be used for MPEG-2 prediction; and a prediction mode controller controlling the prediction mode of the MPEG-2 encoding unit in such that the MPEG-2 prediction mode becomes coincident with the MPEG-4 prediction mode.Type: GrantFiled: January 13, 2010Date of Patent: May 1, 2012Assignee: Hitachi, Ltd.Inventors: Masaru Takahashi, Taku Nakamura
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Publication number: 20120088138Abstract: Provided is a battery cell that allow the inner surfaces of connection strips of a current collector to be brought into contact with the outermost circumferential surface of a layered electrode portion of a power generating element while preventing the connection strips from scratching the layered electrode portion.Type: ApplicationFiled: June 16, 2010Publication date: April 12, 2012Inventors: Noriyoshi Munenaga, Taku Nakamura
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Publication number: 20110287293Abstract: Disclosed is a method for manufacturing a cell which includes: a first step of manufacturing a core using a core manufacturing apparatus, the apparatus including a pair of winding shafts disposed with a rotation center of the apparatus interposed therebetween, the pair of winding shafts orbitally moving about the rotation center; and a second step of fabricating a laminated electrode member with a sheet-shaped positive electrode, a sheet-shaped negative electrode and a pair of sheet-shaped separators interposed thereto to be arranged alternately with the electrodes; and winding the laminated electrode member around a circumferential surface of the core. The first step includes: inserting a sheet having a higher strength than the separators between the winding shafts; orbitally moving the pair of winding shafts; and adhesively bonding or melt-bonding overlapped portions of the sheet at the winding shafts.Type: ApplicationFiled: January 28, 2010Publication date: November 24, 2011Applicant: GS YUASA INTERNATIONAL LTD.Inventors: Isao Suzuki, Noriyoshi Munenaga, Taku Nakamura, Hiroshi Tasai, Shun Ito
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Publication number: 20110247033Abstract: A video communication system having: an encoder coding input video data and outputting a video stream; and a packet processing part grouping into packets the output video stream from said encoder and outputting the same to a communication path; wherein said packet processing part generates an original data cluster consolidating a packet for each group of a prescribed number of MB processes and redundant data for correcting data errors of said original data cluster; and controls the insertion quantity of redundant data so that the combined number of bits of said original data cluster and said redundant data works out to be equal to or less than the target number of bits.Type: ApplicationFiled: November 29, 2010Publication date: October 6, 2011Inventors: Mitsuhiro Okada, Hironori Komi, Taku Nakamura, Tomoyuki Myojin, Hiroki Mizosoe, Yusuke Yatabe
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Publication number: 20110136976Abstract: This is to provide an aqueous polyurethane resin dispersion which can form a tough coating film. An aqueous polyurethane resin dispersion is obtained by dispersing an aqueous polyurethane resin, which is obtained by reacting (A) a polyurethane prepolymer obtained by reacting (a1) a polycarbonate polyol having no urethane bonding having an average molecular weight of 400 to 5000, and having 2.05 to 5 hydroxyl groups in average in one molecule, (b) a polyol compound having an acidic group and (c) a polyisocyanate, or obtained by reacting (a2) the polycarbonate polyol having no urethane bonding having an average molecular weight of 600 to 5000, and having 2.05 to 5 hydroxyl groups in average in one molecule, and having an acidic group, and (c) a polyisocyanate, and (B) a chain elongating agent having a reactivity with the isocyanate group of (A) the polyurethane prepolymer, being dispersed in an aqueous medium.Type: ApplicationFiled: June 30, 2009Publication date: June 9, 2011Inventors: Taku Nakamura, Masahiro Naiki, Manabu Takahashi
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Publication number: 20110112245Abstract: It is to provide an aqueous polyurethane dispersion which gives a coating film excellent in abrasion resistance. It is an aqueous polyurethane resin dispersion which comprises a polyurethane resin obtained by reacting (A) a polyurethane prepolymer which is obtained by reacting (a) a polyisocyanate compound, (b) a polyol compound containing a polycarbonate polyol having an alicyclic structure, and (c) a polyol compound having an acidic group, and (B) a chain elongating agent having a reactivity with the isocyanate group of (A) the polyurethane prepolymer, being dispersed in an aqueous medium, a content of an alicyclic structure is 26.0 to 60.0% by weight in terms of a solid component(s), and a sum of a content of an urethane boding and a content of a urea bonding is 17.7 to 30.0% by weight in terms of a solid component(s).Type: ApplicationFiled: July 6, 2009Publication date: May 12, 2011Inventors: Taku Nakamura, Masahiro Naiki, Afsushi Morikami, Fumio Adachi, Manabu Takahashi, Teruaki Fujii
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Publication number: 20110077352Abstract: Disclosed is an aqueous polyurethane resin dispersion which comprises a polyurethane resin which is obtained by reacting (A) a polyurethane prepolymer obtained by reacting (a) a polycarbonate polyol having an alicyclic structure in the main chain, (b) an acidic group-containing polyol compound and (d) a polyisocyanate, and (B) a chain-elongating agent, being dispersed in an aqueous medium, a carboxylic acid group content of the above-mentioned (A) polyurethane prepolymer based on a solid component of (A) the polyurethane prepolymer is 2.0 to 13.0% by weight, and a number of a hydroxyl equivalent of a mixture of the above-mentioned (a) polycarbonate polyol having an alicyclic structure in the main chain, the above-mentioned (b) acidic group-containing polyol compound, and, if necessary, (c) a polyol other than (a) and (b) is 70 to 270.Type: ApplicationFiled: May 28, 2009Publication date: March 31, 2011Inventors: Taku Nakamura, Masahiro Naiki, Atsushi Morikami, Fumio Adachi, Manabu Takahashi
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Patent number: 7860369Abstract: A play-back device receiving data including program parts and specific parts, detecting duplicated part in which contents are repeated in the specific part included in the data and before and after the specific part. On playing back the data, when it comes to the specific part or the duplicated part it outputs an indication indicating that it is the specific part or the duplicated part on a display screen. When it receives a skip play-back or fast play-back instruction from a user, it controls to skip play back or fast play back the specific part or the duplicated part. It then becomes possible to provide a play-back device with enhanced usefulness for the user and a method for controlling the same.Type: GrantFiled: March 6, 2006Date of Patent: December 28, 2010Assignee: Hitachi, Ltd.Inventors: Masaru Takahashi, Taku Nakamura
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Publication number: 20100111188Abstract: Data of both MPEG-2 and MPEG-4 is generated simultaneously with a small circuit scale and a small power consumption. A moving picture encoding apparatus for encoding a moving picture through motion-compensated inter-frame prediction has: a MPEG-2 encoding unit including a motion vector estimator, a frame memory, a forward prediction circuit, a bidirectional prediction circuit, a prediction selection circuit, an intra-frame encoding circuit and a local decoding circuit; a MPEG-4 encoding unit including a frame extraction circuit for extracting a predetermined MPEG-2 frame and a transcoder for encoding the extracted frame; a motion vector calculator calculating a motion vector to be used for MPEG-4 prediction from a motion vector to be used for MPEG-2 prediction; and a prediction mode controller controlling the prediction mode of the MPEG-2 encoding unit in such that the MPEG-2 prediction mode becomes coincident with the MPEG-4 prediction mode.Type: ApplicationFiled: January 13, 2010Publication date: May 6, 2010Applicant: Hitachi, Ltd.Inventors: Masaru TAKAHASHI, Taku Nakamura
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Publication number: 20090155544Abstract: A web-like electrode material comprising a web-like substrate, an electrode layer and a functional layer provided in that order, wherein a plurality of electrode layers are disposed in series with blanks kept remaining in both side edges in the cross direction of the substrate and in the longitudinal direction thereof each with a predetermined regularity, and the functional layer is disposed by continuous coating in the longitudinal direction of the substrate, and a part of each electrode layer is laid bare.Type: ApplicationFiled: December 11, 2008Publication date: June 18, 2009Applicant: FUJIFILM CorporationInventors: Taku NAKAMURA, Hiroshi Arakatsu, Tomomi Tateishi
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Patent number: 7535348Abstract: A surveillance system having surveillance terminals and a surveillance center is configured to perform effective hazard alert signaling, depending on the hazard type. The surveillance system comprises a plurality of surveillance terminals, which are connected to the surveillance center by a network, carries out hazard and alert signaling. One surveillance terminal detects a hazard and sends a hazard information signal reporting what hazard has just been detected to the surveillance center. The surveillance center receives the hazard information signal, identifies what type of hazard source and the surveillance terminal that sent the hazard information signal, selects surveillance terminals to be alerted to the hazard from among the plurality of surveillance terminals, depending on the identified type of the hazard source and its locality, and sends a hazard alert signal to the selected surveillance terminals.Type: GrantFiled: June 26, 2006Date of Patent: May 19, 2009Assignees: Hitachi, Ltd., Panasonic CorporationInventors: Keisuke Inata, Taku Nakamura, Masahiro Kageyama, Hiroyasu Ohtsubo, Takuya Imaide, Teruki Niki, Masaomi Ueda, Hiroaki Yoshio
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Publication number: 20080306287Abstract: The present invention is to provide a process for preparing tetrahydropyran-4-carboxylic acid represented by the formula (1): which comprises hydrolyzing a 4-cyanotetrahydropyran-4-carboxylic acid compound represented by the formula (2): wherein R represents a hydrogen atom or a hydrocarbon group, in the presence of an acid; a process for preparing a tetrahydropyran-4-carboxylic acid ester which comprises reacting the tetrahydropyran-4-carboxylic acid represented by the above-mentioned formula (1) with an alcohol in the presence of an acid; and a process for preparing tetrahydropyran-4-carboxylic acid amide which comprises reacting the tetrahydropyran-4-carboxylic acid represented by the above-mentioned formula (1) with a halogenating agent to prepare tetrahydropyran-4-carboxylic acid halide, and then, reacting an amine compound to the resulting compound.Type: ApplicationFiled: November 18, 2005Publication date: December 11, 2008Applicant: UBE INDUSTRIES, LTD.Inventors: Shigeyoshi Nishino, Kenji Hirotsu, Hidetaka Shima, Takashi Harada, Taku Nakamura, Keiji Iwamoto
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Patent number: 7433411Abstract: A decoding apparatus for selectively decoding compressed video or audio signal included in a data signal. The decoding apparatus includes a demultiplexer that receives and separates a data signal from a compressed input signal. A video decoder and an audio decoder are provided to decode compressed video or audio signals stored in a decoder buffer. The decoding apparatus uses a memory to store the data signal separated by the demultiplexer, and a CPU to analyze the data signal stored in the memory. The CPU causes the data signal analyzed by the CPU to be stored in the decoder buffer if the analyzed data signal includes a compressed video signal or a compressed audio signal, and the compression method used for the compressed video signal or the compressed audio signal included in the data signal can be decoded by the video decoder or the audio decoder.Type: GrantFiled: January 23, 2004Date of Patent: October 7, 2008Assignee: Hitachi, Ltd.Inventors: Taku Nakamura, Yukio Fujii, Kenji Katsumata, Hiroyuki Koreeda
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Publication number: 20070297514Abstract: Data of both MPEG-2 and MPEG-4 is generated simultaneously with a small circuit scale and a small power consumption. A moving picture encoding apparatus for encoding a moving picture through motion-compensated inter-frame prediction has: a MPEG-2 encoding unit including a motion vector estimator, a frame memory, a forward prediction circuit, a bidirectional prediction circuit, a prediction selection circuit, an intra-frame encoding circuit and a local decoding circuit; a MPEG-4 encoding unit including a frame extraction circuit for extracting a predetermined MPEG-2 frame and a transcoder for encoding the extracted frame; a motion vector calculator calculating a motion vector to be used for MPEG-4 prediction from a motion vector to be used for MPEG-2 prediction; and a prediction mode controller controlling the prediction mode of the MPEG-2 encoding unit in such that the MPEG-2 prediction mode becomes coincident with the MPEG-4 prediction mode.Type: ApplicationFiled: August 20, 2007Publication date: December 27, 2007Applicant: Hitachi, Ltd.Inventors: Masaru Takahashi, Taku Nakamura
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Publication number: 20070286284Abstract: The present invention provides an image coding apparatus and an image coding method for reducing arithmetic processing while keeping a high compression ratio. A coding process necessary for the bi-prediction motion search can be effectively reduced by determining a block size for a bi-prediction motion search or a center position for a motion search on the basis of a result of a motion search of a unidirectional prediction. Further, a compression ratio can be also kept as high as possible, because the block size or the center position are obtained on the basis of the result of the motion search of the unidirectional prediction.Type: ApplicationFiled: March 23, 2007Publication date: December 13, 2007Inventors: Hiroaki Ito, Tomokazu Murakami, Isao Karube, Taku Nakamura, Yusuke Yatabe
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Patent number: 7289563Abstract: A security camera system having one or more monitoring cameras, each of which transmits a digital video signal after compressing/encoding, are connected to a controller via a network. In the controller, a media control section stores the video signal supplied from the monitoring cameras in a storage medium and reads out the video signal as needed. Image processing for privacy protection is carried out to the real-time video signal supplied from the monitoring camera and the video signal read out from the storage medium. The level of the image processing for privacy protection is switched depending on the authority of a user who views the video image. Further, even for the same user authority, the image processing level for privacy protection is switched and adjusted depending on the size of the object in the video image.Type: GrantFiled: June 27, 2003Date of Patent: October 30, 2007Assignee: Hitachi, Ltd.Inventors: Naoki Yamamoto, Taku Nakamura, Takuya Imaide, Hiroyasu Ohtsubo
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Patent number: 7272185Abstract: Data of both MPEG-2 and MPEG-4 is generated simultaneously with a small circuit scale and a small power consumption. A moving picture encoding apparatus for encoding a moving picture through motion-compensated inter-frame prediction has: a MPEG-2 encoding unit including a motion vector estimator, a frame memory, a forward prediction circuit, a bidirectional prediction circuit, a prediction selection circuit, an intra-frame encoding circuit and a local decoding circuit; a MPEG-4 encoding unit including a frame extraction circuit for extracting a predetermined MPEG-2 frame and a transcoder for encoding the extracted frame; a motion vector calculator calculating a motion vector to be used for MPEG-4 prediction from a motion vector to be used for MPEG-2 prediction; and a prediction mode controller controlling the prediction mode of the MPEG-2 encoding unit in such that the MPEG-2 prediction mode becomes coincident with the MPEG-4 prediction mode.Type: GrantFiled: July 26, 2005Date of Patent: September 18, 2007Assignee: Hitachi, Ltd.Inventors: Masaru Takahashi, Taku Nakamura
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Publication number: 20070071397Abstract: An area not displayed by a first stream recorded in a disk is complemented by a second stream which is transmitted from a server through a network to a playback apparatus. A picture represented by the second stream is superimposed on a picture represented by the first stream to display a complete picture. A sound included in the second stream is also mixed with a sound included in the first stream to output a complete sound.Type: ApplicationFiled: July 3, 2006Publication date: March 29, 2007Inventors: Taku Nakamura, Hiroki Mizosoe
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Patent number: 7141693Abstract: The present invention relates to a process for preparing a ?-oxonitrile compound or an alkali metal salt thereof which comprises reacting a carboxylic ester represented by the formula (1): R1CO2R2??(1) wherein R1 and R2 each represent a group which does not participate in a reaction, provided that R2 excludes a hydrogen atom, with a nitrile compound represented by the formula (2): R3CH2CN??(2) wherein R3 represents an alkyl group, and a base at 145 to 300° C. in a sealed vessel to obtain an alkali metal salt of a ?-oxonitrile compound represented by the formula (3): wherein R1 and R3 have the same meanings as defined above, and neutralizing the same with an acid, if necessary.Type: GrantFiled: August 2, 2002Date of Patent: November 28, 2006Assignee: Ube Industries, Ltd.Inventors: Akio Matsushita, Kiyotaka Yoshii, Masayoshi Oue, Taku Nakamura, Shuji Yamada
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Publication number: 20060248439Abstract: A play-back device receiving data including program parts and specific parts, detecting duplicated part in which contents are repeated in the specific part included in the data and before and after the specific part. On playing back the data, when it comes to the specific part or the duplicated part it outputs an indication indicating that it is the specific part or the duplicated part on a display screen. When it receives a skip play-back or fast play-back instruction from a user, it controls to skip play back or fast play back the specific part or the duplicated part. It then becomes possible to provide a play-back device with enhanced usefulness for the user and a method for controlling the same.Type: ApplicationFiled: March 6, 2006Publication date: November 2, 2006Inventors: Masaru Takahashi, Taku Nakamura