Patents by Inventor Kentaro Takahashi
Kentaro 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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Patent number: 8351658Abstract: An eyelid detection apparatus includes a face image storing means storing a plurality of face images of a subject captured at different timings, a change detecting means detecting changes in each face image caused by blinking after processing the plurality of face images stored by the face image storing means, and an eyelid detecting means detecting a position of an eyelid of the subject based on the changes detected by the change detecting means.Type: GrantFiled: February 6, 2008Date of Patent: January 8, 2013Assignees: Aisin Seiki Kabushiki Kaisha, Toyota Jidosha Kabushiki KaishaInventors: Jun Adachi, Yukihiko Yoshinaga, Tomoharu Suzuki, Takashi Hiramaki, Kenichi Ogawa, Kenichi Ohue, Kentaro Takahashi, Shigeyasu Uozumi, Shinichi Kojima, Satoru Nakanishi
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Publication number: 20120299146Abstract: A method for forming a vertical electrostatic discharge (ESD) protection device includes depositing a multi-layer n-type epitaxial layer on a substrate having p-type surface including first epitaxial depositing to form a first n-type epitaxial layer on the p-type surface, and second epitaxial depositing to form a second n-type epitaxial layer formed on the first n-type epitaxial layer. The first type epitaxial layer has a peak doping level which is at least double that of the second n-type epitaxial layer. A p+ layer is formed on the second n-type epitaxial layer. An etch step etches through the p+ layer and multi-layer n-type epitaxial layer to reach the substrate to form a trench. The trench is filled with a filler material to form a trench isolation region. A metal contact is formed on the p+ layer for providing contact to the p+ layer.Type: ApplicationFiled: May 22, 2012Publication date: November 29, 2012Applicant: TEXAS INSTRUMENTS INCORPORATEDInventors: TOSHIYUKI TANI, HIROSHI YAMASAKI, KENTARO TAKAHASHI, LILY SPRINGER
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Patent number: 8252467Abstract: A non-aqueous electrolyte secondary cell is provided having enhanced safety against overcharge and reduced self-discharge. The non-aqueous electrolyte secondary cell includes: a positive electrode having a positive electrode active material; a negative electrode having a negative electrode active material; and a non-aqueous electrolyte containing a non-aqueous solvent and electrolytic salt. The non-aqueous solvent contains 20 to 80 volume % tertiary carboxylic acid ester represented by formula 1 at 25° C. and 1 atm. The non-aqueous electrolyte contains an alkylbenzene compound and/or a halogenated benzene compound. where R1 to R4 each denote a straight-chained or branched alkyl group having 4 or less carbon atoms and may be the same or different.Type: GrantFiled: December 23, 2008Date of Patent: August 28, 2012Assignee: SANYO Electric Co., Ltd.Inventor: Kentaro Takahashi
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Patent number: 8252468Abstract: A non-aqueous electrolyte secondary cell is provided having enhanced safety against overcharge and reduced self-discharge. The non-aqueous electrolyte secondary cell includes: a positive electrode having a positive electrode active material; a negative electrode having a negative electrode active material; and a non-aqueous electrolyte containing a non-aqueous solvent and electrolytic salt. The non-aqueous solvent contains 20 to 80 volume % tertiary carboxylic acid ester represented by Formula 2 at 25° C. and 1 atm. The non-aqueous electrolyte contains a halogenated benzene compound. where R1 to R4 each denote a straight-chained or branched alkyl group having 4 or less carbon atoms and may be the same or different.Type: GrantFiled: July 11, 2011Date of Patent: August 28, 2012Assignee: SANYO Electric Co., Ltd.Inventor: Kentaro Takahashi
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Patent number: 8133620Abstract: A polymer electrolyte secondary cell with high safety against overcharging includes a positive electrode containing a positive electrode active material; a negative electrode containing a negative electrode active material; a polymer electrolyte containing a non-aqueous solvent, an electrolyte salt, and a polymer. The non-aqueous solvent contains a tertiary carboxylic acid ester shown in Formula 1 below. The polymer is formed from monomers containing alkylene glycol (meth)acrylate and/or N,N-dialkyl (meth)acrylamide. where R1 to R4 each denote a straight-chained or branched alkyl group having 4 or less carbon atoms and may be the same or different.Type: GrantFiled: December 23, 2008Date of Patent: March 13, 2012Assignee: SANYO Electric Co., Ltd.Inventor: Kentaro Takahashi
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Publication number: 20120021265Abstract: In a flat nonaqueous secondary battery, an electrode assembly formed by stacking or winding a positive electrode and a negative electrode with a separator interposed therebetween is sealed in a laminated outer body together with a nonaqueous electrolyte, and a positive electrode tab and a negative electrode tab are led out from the laminated outer body. The separator has a rupture elongation of 50% or more in at least the TD direction or the MD direction. A metal plate connected to the positive electrode tab is placed on an outer principal surface of the laminated outer body. This structure provides a nonaqueous secondary battery and a nonaqueous secondary battery pack that are extremely safe, being unlikely to emit smoke or explode even when a nail penetrates the battery in a charged state.Type: ApplicationFiled: July 18, 2011Publication date: January 26, 2012Applicant: SANYO ELECTRIC CO., LTD.Inventor: Kentaro Takahashi
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Patent number: 8097367Abstract: A non-aqueous electrolyte secondary cell with superior cycle characteristics is provided. The non-aqueous electrolyte secondary cell has a positive electrode, a negative electrode, and a non-aqueous electrolyte containing a non-aqueous solvent and an electrolyte salt. The non-aqueous solvent contains ethylene carbonate and propylene carbonate. The ratio of the ethylene carbonate to the total mass of the ethylene carbonate and the propylene carbonate is from 0.40 to 0.78. The non-aqueous electrolyte contains a 1,3-dioxane compound at a mass % of from 0.1 to 5.0. The 1,3-dioxane compound is represented by Formula 1: where R1 to R4 independently denote a hydrogen atom, a methyl group, or an ethyl group.Type: GrantFiled: September 27, 2007Date of Patent: January 17, 2012Assignee: SANYO Electric Co., Ltd.Inventor: Kentaro Takahashi
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Publication number: 20110269028Abstract: A non-aqueous electrolyte secondary cell is provided having enhanced safety against overcharge and reduced self-discharge. The non-aqueous electrolyte secondary cell includes: a positive electrode having a positive electrode active material; a negative electrode having a negative electrode active material; and a non-aqueous electrolyte containing a non-aqueous solvent and electrolytic salt. The non-aqueous solvent contains 20 to 80 volume % tertiary carboxylic acid ester represented by Formula 2 at 25° C. and 1 atm. The non-aqueous electrolyte contains a halogenated benzene compound. where R1 to R4 each denote a straight-chained or branched alkyl group having 4 or less carbon atoms and may be the same or different.Type: ApplicationFiled: July 11, 2011Publication date: November 3, 2011Applicant: SANYO ELECTRIC CO., LTD.Inventor: Kentaro Takahashi
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Patent number: 8021787Abstract: The preservation performance of a nonaqueous electrolyte secondary cell charged to high potential is improved while the initial capacity and the cycle property of the cell are also improved. The nonaqueous electrolyte secondary cell includes: a positive electrode having lithium phosphate and a positive electrode active material containing lithium cobalt compound oxide and lithium manganese nickel compound oxide having a layer structure, the lithium cobalt compound oxide having at least zirconium and magnesium added in LiCoO2; a negative electrode having a negative electrode active material; and a nonaqueous electrolyte having a nonaqueous solvent and an electrolytic salt. The potential of the positive electrode is more than 4.3 V and 5.1 V or less based on lithium. The nonaqueous electrolyte contains vinylene carbonate as the nonaqueous solvent and, as the electrolytic salt, at least one of lithium bis(pentafluoroethane sulfonyl)imide and lithium bis(trifluoromethane sulfonyl)imide at 0.1 M or more and 0.Type: GrantFiled: May 30, 2007Date of Patent: September 20, 2011Assignee: Sanyo Electric Co., Ltd.Inventors: Masato Iwanaga, Kentaro Takahashi, Yukihiro Oki, Yoshihiko Ikeda, Akira Kinoshita, Nobumichi Nishida
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Patent number: 8012630Abstract: A polymer electrolyte secondary cell that is superior in the cycle characteristic and security during cell overcharge is provided. The polymer electrolyte of the cell includes a non-aqueous solvent, a lithium salt, and a polymer. The non-aqueous solvent contains at least one of ethylene carbonate and propylene carbonate. The volume ratio (25° C., 1 atm) of the ethylene carbonate and the propylene carbonate combined to the non-aqueous solvent is equal to or more than 60%. The polymer is made of a copolymer having a monomer containing N,N-dimethyl acrylamide and a compound with three or more acrylate groups and/or methacrylate groups. The ratio of the compound to the total mass of the monomer is from 10 to 30 mass %. The ratio of the polymer to the polymer electrolyte is from 1.0 to 2.0 mass %.Type: GrantFiled: September 26, 2007Date of Patent: September 6, 2011Assignee: Sanyo Electric Co., Ltd.Inventors: Mikiya Yamasaki, Kentaro Takahashi
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Publication number: 20110183217Abstract: A positive electrode active material has an average particle diameter of 4.5 to 15.5 ?m and a specific surface area of 0.13 to 0.80 m2/g. A positive electrode mixture layer contains a silane coupling agent and/or at least one of aluminum, titanium, or zirconium based coupling agent having an alkyl or alkoxy groups having 1 to 18 carbon atoms at a content of 0.003% by mass or more and 5% by mass or less with respect to the mass of the positive electrode active material. The nonaqueous electrolyte contains a fluorinated cyclic carbonate esters at a content of 0.3% by mass or more with respect to the total mass of the nonaqueous electrolyte. Thus the nonaqueous secondary battery in which, when used with a nonaqueous electrolyte containing a fluorinated cyclic carbonate esters, cycle characteristics are good and nail penetration characteristics are superior is provided.Type: ApplicationFiled: December 13, 2010Publication date: July 28, 2011Applicant: SANYO ELECTRIC CO., LTD.Inventor: Kentaro Takahashi
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Publication number: 20110183212Abstract: The lithium ion polymer battery includes a positive electrode plate formed with a positive electrode mixture layer having a lithium composite oxide as a positive electrode active material, a negative electrode plate, a separator, and a gel nonaqueous electrolyte, the positive electrode active material having an average particle diameter of 4.5 to 15.5 ?m and a specific surface area of 0.13 to 0.80 m2/g, the positive electrode mixture layer containing at least one of aluminum, titanium, or zirconium based coupling agent having an alkyl or an alkoxy groups having 1 to 18 carbon atoms at a content of 0.01% or more and 5% or less by mass with respect to the mass of the positive electrode active material, and the gel nonaqueous electrolyte being formed from a nonaqueous electrolyte containing a monomer having a (meth)acrylic end group. Thus improved nail penetration characteristics and superior cycle characteristics are obtained.Type: ApplicationFiled: December 23, 2010Publication date: July 28, 2011Applicant: SANYO ELECTRIC CO., LTD.Inventors: Kentaro Takahashi, Shinya Furukawa
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Publication number: 20110183214Abstract: A positive electrode active material has an average particle diameter of 4.5 to 15.5 ?m and a specific surface area of 0.13 to 0.80 m2/g. A positive electrode mixture layer contains at least one of a silane coupling agent and/or at least one of aluminum, titanium, or zirconium based coupling agent having an alkyl or an alkoxy groups having 1 to 18 carbon atoms at a content of 0.003% by mass or more and 5% by mass or less with respect to the mass of the positive electrode active material. The nonaqueous electrolyte contains a 1,3-dioxane derivative at a content of 0.05% by mass or more with respect to the total mass of the nonaqueous electrolyte. Thus a nonaqueous secondary battery that has good high-temperature cycle characteristics and suppresses an increase in self-discharge after repetition of charge and discharge cycles at high temperature is provided.Type: ApplicationFiled: December 28, 2010Publication date: July 28, 2011Applicant: SANYO ELECTRIC CO., LTD.Inventor: Kentaro Takahashi
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Publication number: 20110165453Abstract: A nonaqueous electrolytic secondary battery and a positive electrode for a nonaqueous electrolytic secondary battery are provided. The positive electrode includes a positive electrode active material layer containing a positive electrode active material and a coupling agent represented by a general formula (1). The positive electrode active material includes lithium transition metal oxide particles. At least one rare-earth compound selected from the rare-earth compound group consisting of specific rare-earth hydroxides and specific rare-earth oxyhydroxides is fixed on the surfaces of the lithium transition metal oxide particles in a dispersed form.Type: ApplicationFiled: January 5, 2011Publication date: July 7, 2011Applicant: SANYO ELECTRIC CO., LTD.Inventors: Takeshi OGASAWARA, Kentaro TAKAHASHI, Naoki IMACHI
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Publication number: 20110159359Abstract: A nonaqueous electrolyte of nonaqueous secondary battery contains a nitrile group-containing compound at a concentration of 0.05% by mass or more. A positive electrode active material has an average particle diameter of 4.5 to 15.5 ?m and a specific surface area of 0.13 to 0.80 m2/g. A positive electrode binder layer contains a silane coupling agent and/or at least one of aluminum, titanium, or zirconium based coupling agent having an alkyl or an alkoxy groups having 1 to 18 carbon atoms at a content of 0.003% by mass or more and 5% by mass or less. Thus nonaqueous secondary battery having a film resistance of the interface between a positive electrode and the electrolyte being less increased, and excellent ion conductivity and charge load characteristics in a low temperature environment is provided.Type: ApplicationFiled: December 10, 2010Publication date: June 30, 2011Applicant: SANYO ELECTRIC CO., LTD.Inventor: Kentaro Takahashi
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Patent number: 7957566Abstract: An eyelid detection apparatus includes a face-image storing apparatus for storing an image of a face of a subject, an eyelid-candidate extracting apparatus for processing the image stored in the face-image storing apparatus to extract a pair of lines, which becomes a candidate of a combination of a line corresponding to an upper eyelid and a line corresponding to a lower eyelid, a parameter calculating apparatus for calculating a parameter, which indicates a possibility that a pan of the image stored in the face-image storing apparatus, the part corresponding to the pair of lines extracted by the eyelid-candidate extracting apparatus, includes at least one of outer and inner corners of an eye, and an eyelid detecting apparatus for detecting a position of an eyelid of the subject on the basis of the parameter calculated by the parameter calculating apparatus.Type: GrantFiled: March 13, 2008Date of Patent: June 7, 2011Assignees: Aisin Seiki Kabushiki Kaisha, Toyota Jidosha Kabushiki KaishaInventors: Tomoharu Suzuki, Takashi Hiramaki, Jun Adachi, Kenichi Ohue, Yuji Ninagawa, Kentaro Takahashi, Shigeyasu Uozumi, Satoru Nakanishi, Shinichi Kojima
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Patent number: 7936926Abstract: A face feature point detection apparatus includes an image capturing device, an edge calculating unit calculating edge values indicating a luminance change in a direction, and a detection target determining unit scanning an edge image, which is created by arranging the edge values for corresponding pixels based on pixel arrangement of the face images, with an image window being an aggregation of selected pixels formed in a predetermined shape, the detection target determining unit determining a position of the image window having a largest weighted sum of weighted sums to be a detection position where a detection target is present, providing that the weighted sum is calculated by multiplying the edge value which corresponds to each pixel in the image window by a predetermined value defined on a per-pixel basis and adding up all products of the edge value and the predetermined value.Type: GrantFiled: March 12, 2008Date of Patent: May 3, 2011Assignees: Aisin Seiki Kabushiki Kaisha, Toyota Jidosha Kabushiki KaishaInventors: Tomoharu Suzuki, Jun Adachi, Yukihiko Yoshinaga, Yuji Ninagawa, Kenichi Ohue, Kentaro Takahashi, Shigeyasu Uozumi, Shinichi Kojima
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Patent number: 7709156Abstract: A non-aqueous electrolyte secondary battery includes a positive electrode containing a positive electrode active material; a negative electrode containing a negative electrode active material; and a non-aqueous electrolyte containing a non-aqueous solvent and an electrolyte salt. In order to improve the high-temperature storage characteristics and safety against overcharge due to high-rate charging of the battery, the positive electrode active material contains a layered lithium-transition metal composite oxide containing at least one of Mg, Al, Ti, and Zr. Furthermore, the non-aqueous electrolyte contains 3 to 80% by mass of a tertiary carboxylic acid ester expressed by Chemical Formula 2 below, based on the total mass of the non-aqueous solvent: where R1 to R4 are independent of each other and each represents an alkyl group having 4 or less carbon atoms and being able to be branched.Type: GrantFiled: September 26, 2008Date of Patent: May 4, 2010Assignee: Sanyo Electric Co., Ltd.Inventor: Kentaro Takahashi
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Publication number: 20100094176Abstract: An eye opening detection system that includes an imaging mechanism that captures an image of the face of a detected subject, an edge extraction mechanism that extracts the edge of the image captured, and an upper and lower eyelid detection mechanism that detects the upper and lower eyelids of the detected subject according to the edge extracted, and that detects the eye opening of the detected subject with reference to a detected distance between the upper and lower eyelids. The upper and lower eyelid detection detects the upper eyelid and detects the lower eyelid with reference to the upper eyelid detected.Type: ApplicationFiled: November 6, 2007Publication date: April 15, 2010Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISIN SEIKI KABUSHIKI KAISHAInventors: Kenichi Ohue, Yuji Ninagawa, Kentaro Takahashi, Shin-ichi Kojima, Jun Adachi, Tomoharu Suzuki
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Patent number: 7691538Abstract: In a nonaqueous electrolyte secondary battery according to an embodiment of the invention, a nonaqueous electrolyte contains: a tertiary carboxylate ester represented by the following general formula (1) in an amount of a range of 3% by mass or more and 80% by mass or less based on the total mass of the nonaqueous solvent: where R1, R2, R3, R4 represent a (C1 to 4) alkyl group, respectively, and one or more acid anhydride selected from succinic anhydride, glutaric anhydride, and glycolic anhydride in an amount of a range of 0.1% by mass or more and 5% by mass or less based on the total mass of the nonaqueous electrolyte. By containing such a constitution, in other words, by containing a nonaqueous solvent capable of stabilizing the coating film of the negative electrode, a nonaqueous electrolyte secondary battery in which not only can satisfactory cycle performance and retention characteristics be obtained, but also the overcharging performance is largely improved, can be provided.Type: GrantFiled: March 26, 2008Date of Patent: April 6, 2010Assignee: Sanyo Electric Co., Ltd.Inventor: Kentaro Takahashi