Patents by Inventor Hiroki Takenaka
Hiroki Takenaka 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: 11962183Abstract: A backup power system according to the present disclosure includes a battery, a charging circuit, power storage, a first load, a second load, and a controller that controls the charging circuit. The controller causes an input current at the charging circuit to increase at a first rate of change in response to a start signal. When the controller detects an increase in a charging voltage at the power storage up to a first voltage at which driving of the first load is possible, the controller controls the charging circuit to cause the input current at the charging circuit to increase at a second rate of change lower than the first rate of change. The charging circuit is controlled by the controller to cause the input current to increase at the second rate of change, and the charging voltage at the power storage increases up to a second voltage at which driving of both the first load and the second load is possible.Type: GrantFiled: June 3, 2020Date of Patent: April 16, 2024Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Kazuo Takenaka, Takashi Higashide, Katsunori Atago, Youichi Kageyama, Hisao Hiragi, Yugo Setsu, Hiroki Nishinaka, Shinichi Tanida
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Publication number: 20240059831Abstract: An object of the present disclosure is to provide a curable composition excellent in curability (especially high-speed curability) and capable of forming a cured product excellent in heat resistance (especially reflow heat resistance), and to provide a wafer-level lens formed by using the curable composition and a method for producing the wafer-level lens. A curable composition of the present disclosure includes the following components (A) and (B). component (A): a compound including an alicyclic epoxy group and including no ester bond, and component (B): a cationic polymerization initiator including a cation moiety and an anion moiety containing a gallium atom.Type: ApplicationFiled: August 8, 2023Publication date: February 22, 2024Applicant: DAICEL CORPORATIONInventor: Hiroki TAKENAKA
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Publication number: 20240034832Abstract: [Problem] To provide a curable composition capable of achieving reduction in viscosity while having a high refractive index when formed into a cured product. [Solution] Disclosed is a curable composition containing an alicyclic epoxy compound (A) and a cationically polymerizable compound (B) having a binaphthyl group. The curable composition preferably contains a monofunctional cationically polymerizable aromatic compound (C), preferably has a viscosity of 30 Pa·s or less at 25° C., and preferably has a refractive index of 1.58 or greater at a wavelength 589 nm when cured.Type: ApplicationFiled: July 26, 2023Publication date: February 1, 2024Applicant: DAICEL CORPORATIONInventors: Hiroki TAKENAKA, Kouji TANAKA
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Publication number: 20230288614Abstract: There is provided a technique that can suppress generation of flare and/or ghost by incident light reflecting off an inner wall of the spacer in a lens unit including a wafer-level lens and a spacer. A lens unit is formed by joining a lens portion including a lens and a spacer portion including a through hole through which light emitted from the lens passes, in which the spacer portion includes, in an end surface in which the lens portion is joined, an opening portion of the through hole and an inner wall portion, which is a wall surface of an outer edge of the opening portion, and the inner wall portion has a surface roughness greater than a surface roughness of an end surface of the spacer portion opposite to the end surface in which the lens portion is joined.Type: ApplicationFiled: December 28, 2022Publication date: September 14, 2023Applicant: Daicel CorporationInventors: Hiroki Takenaka, Hiroyuki Hanato, Maki Kishimoto
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Publication number: 20230249424Abstract: A method of producing a lens molded article includes a state determination of determining, after molding the lens molded article, whether a state is a first state where the lens molded article molded remains in an upper mold or a second state where the lens molded article molded remains in a lower mold; an adsorption of adsorbing an exposed surface of the lens molded article remaining in the upper mold or the lower mold, by an adsorption device disposed at an arm of a molded article moving device; an adsorption surface change of changing an adsorption surface from a surface adsorbed by the adsorption device to an opposite surface to the exposed surface when the determination result in the state determination is either one of the first state or the second state; and a placement of placing on a tray the lens molded article adsorbed by the adsorption device.Type: ApplicationFiled: February 8, 2023Publication date: August 10, 2023Applicant: DAICEL CORPORATIONInventors: Hiroki TAKENAKA, Hiromi HONMA
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Publication number: 20230176249Abstract: As a first aspect, provided is a hybrid lens for which peeling and shifting of a glass and a resin lens do not easily occur, and for which floating of an adhesive layer and peeling between the glass and resin lens do not easily occur even when the hybrid lens is exposed to a high temperature environment. As a second aspect, provided is an easily produced hybrid lens in which a glass and a resin lens are laminated, and in which the resin lens and a light-shielding portion are laminated with good precision. The hybrid lenses 11 and 12 each include a glass substrate 3, a resin lens 2, and an adhesive layer 4 provided between the glass substrate 3 and the resin lens 2. In the hybrid lens 11, the glass transition temperature of the resin lens 2 is higher than the glass transition temperature of the adhesive layer 4, and the difference between the glass transition temperature of the resin lens 2 and the glass transition temperature of the adhesive layer 4 is from 97 to 150° C.Type: ApplicationFiled: November 15, 2022Publication date: June 8, 2023Applicant: Daicel CorporationInventors: Hiroki Takenaka, Hiromi Honma, Hiroyuki Hanato, Shinji Kikuchi
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Patent number: 11099347Abstract: The imaging-device lens module includes a lens and a spacer. The lens includes a functioning portion, a non-functioning portion, and a support. The non-functioning portion is disposed around the periphery of, and is integral with, the functioning portion. The support is integral with the non-the functioning portion and supports the lens. The spacer has a flat top face, and the support has a flat bottom face. The spacer is bonded at the top face to the bottom face to support the lens. The top face has a width B, and the bottom face has a width A, where B is greater than A. The support has a height L1, the spacer has a height L2, and the functioning portion has a diameter D, where the total of L1 and L2 is greater than D, and where the diameter D is equal to or greater than the height L1.Type: GrantFiled: October 11, 2017Date of Patent: August 24, 2021Assignee: DAICEL CORPORATIONInventors: Hiroki Takenaka, Hiromi Honma
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Patent number: 11029497Abstract: An object of the present invention is to provide a curable composition that can be cured satisfactorily and can form a cured product having a high glass transition temperature as maintained and having high mechanical strength. A curable composition includes a siloxane (A), a cycloaliphatic epoxide (B), and a curing agent (C). The siloxane (A) contains at least two epoxy groups per molecule. The cycloaliphatic epoxide (B) in the curable composition is preferably a compound represented by Formula (I): wherein X is selected from a single bond and a linkage group.Type: GrantFiled: June 6, 2018Date of Patent: June 8, 2021Assignee: DAICEL CORPORATIONInventors: Takashi Kubo, Hiroki Takenaka
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Publication number: 20190384030Abstract: Provided is an imaging-device lens module that can employ a lens having high form accuracy even with a long focal length, enables easy adjustment of the focal length with a small number of parts, and enables easy adjustment of the focal position before joining of the lens and a spacer. The imaging-device lens module includes a lens 1, a spacer 2, and a substrate 3 including a photodetector 3a. The lens 1 includes a functioning portion 1a, a non-functioning portion 1b, and a support 1c. The non-functioning portion 1b is disposed around the periphery of, and is integral with, the functioning portion 1a. The support 1c is integral with the non-the functioning portion 1a and supports the lens 1. The spacer 2 has a flat top face 2a, and the support 1c has a flat bottom face 1d. The spacer 2 is bonded at the top face 2a to the bottom face 1d to support the lens 1. The top face 2a has a width B, and the bottom face 1d has a width A, where B is greater than A.Type: ApplicationFiled: October 11, 2017Publication date: December 19, 2019Applicant: DAICEL CORPORATIONInventors: Hiroki TAKENAKA, Hiromi HONMA
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Publication number: 20180284396Abstract: An object of the present invention is to provide a curable composition that can be cured satisfactorily and can form a cured product having a high glass transition temperature as maintained and having high mechanical strength. A curable composition includes a siloxane (A), a cycloaliphatic epoxide (B), and a curing agent (C). The siloxane (A) contains at least two epoxy groups per molecule. The cycloaliphatic epoxide (B) in the curable composition is preferably a compound represented by Formula (I): wherein X is selected from a single bond and a linkage group.Type: ApplicationFiled: June 6, 2018Publication date: October 4, 2018Applicant: DAICEL CORPORATIONInventors: Takashi KUBO, Hiroki TAKENAKA
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Patent number: 10018810Abstract: An object of the present invention is to provide a curable composition that can be cured satisfactorily and can form a cured product having a high glass transition temperature as maintained and having high mechanical strength. A curable composition includes a siloxane (A), a cycloaliphatic epoxide (B), and a curing agent (C). The siloxane (A) contains at least two epoxy groups per molecule. The cycloaliphatic epoxide (B) in the curable composition is preferably a compound represented by Formula (I): wherein X is selected from a single bond and a linkage group.Type: GrantFiled: August 22, 2013Date of Patent: July 10, 2018Assignee: DAICEL CORPORATIONInventors: Takashi Kubo, Hiroki Takenaka
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Patent number: 9856347Abstract: Provided is a curable composition that is rapidly cured to form a cured product. The cured product resists yellowing, successfully maintains excellent transparency over a long time even in a high-temperature environment, and is advantageously usable as or in a wafer-level lens. The curable composition according to the present invention includes a cycloaliphatic epoxide (A), a siloxane compound (B), and a curing agent (C). The cycloaliphatic epoxide (A) is represented by Formula (1). The siloxane compound (B) contains two or more glycidyl groups per molecule. In the formula, X is selected from a single bond and a linkage group.Type: GrantFiled: February 16, 2015Date of Patent: January 2, 2018Assignee: DAICEL CORPORATIONInventors: Hiroki Takenaka, Kyohei Ishida
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Publication number: 20170009003Abstract: Provided is a curable composition that is rapidly cured to form a cured product. The cured product resists yellowing, successfully maintains excellent transparency over a long time even in a high-temperature environment, and is advantageously usable as or in a wafer-level lens. The curable composition according to the present invention includes a cycloaliphatic epoxide (A), a siloxane compound (B), and a curing agent (C). The cycloaliphatic epoxide (A) is represented by Formula (1). The siloxane compound (B) contains two or more glycidyl groups per molecule. In the formula, X is selected from a single bond and a linkage group.Type: ApplicationFiled: February 16, 2015Publication date: January 12, 2017Applicant: DAICEL CORPORATIONInventors: Hiroki TAKENAKA, Kyohei ISHIDA
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Patent number: 9480672Abstract: An object of the present invention is to provide an internal composition capable of exerting various physiological functions such as a brain-function improving function. That is, the present invention provides an internal composition including docosahexaenoic acid and capsanthin, or docosahexaenoic acid, capsanthin, lutein, and zeaxanthin as active ingredients.Type: GrantFiled: July 10, 2014Date of Patent: November 1, 2016Assignee: LION CORPORATIONInventors: Hiroki Takenaka, Yasuharu Ishihara, Naoki Ichiyanagi, Misato Koakutsu, Kei Kurita
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Patent number: 9457001Abstract: An object of the present invention is to provide an internal composition capable of exerting various physiological functions such as a brain-function improving function. That is, the present invention provides an internal composition including docosahexaenoic acid and capsanthin, or docosahexaenoic acid, capsanthin, lutein, and zeaxanthin as active ingredients.Type: GrantFiled: July 10, 2014Date of Patent: October 4, 2016Assignee: LION CORPORATIONInventors: Hiroki Takenaka, Yasuharu Ishihara, Naoki Ichiyanagi, Misato Koakutsu, Kei Kurita
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Publication number: 20160067203Abstract: An object of the present invention is to provide an internal composition capable of exerting various physiological functions such as a brain-function improving function. That is, the present invention provides an internal composition including docosahexaenoic acid and capsanthin, or docosahexaenoic acid, capsanthin, lutein, and zeaxanthin as active ingredients.Type: ApplicationFiled: July 10, 2014Publication date: March 10, 2016Applicant: LION CORPORATIONInventors: Hiroki TAKENAKA, Yasuharu ISHIHARA, Naoki ICHIYANAGI, Misato KOAKUTSU, Kei KURITA
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Publication number: 20150212300Abstract: An object of the present invention is to provide a curable composition that can be cured satisfactorily and can form a cured product having a high glass transition temperature as maintained and having high mechanical strength. A curable composition includes a siloxane (A), a cycloaliphatic epoxide (B), and a curing agent (C). The siloxane (A) contains at least two epoxy groups per molecule. The cycloaliphatic epoxide (B) in the curable composition is preferably a compound represented by Formula (I): wherein X is selected from a single bond and a linkage group.Type: ApplicationFiled: August 22, 2013Publication date: July 30, 2015Applicant: DAICEL CORPORATIONInventors: Takashi Kubo, Hiroki Takenaka
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Patent number: 8865801Abstract: The present invention relates to epoxy resin coating composition which comprises, at least, epoxy resin, a thiol-type curing agent and a curing assistant, being composed of two liquids of liquid (A) containing epoxy resin and a thiol-type curing agent and liquid (B) containing a curing assistant, which liquids are mixed just before using, wherein the thiol-type curing agent contains a branched compound containing a thiol group (P), which compound is an ester of polyhydric alcohol with thiol group-containing carboxylic acid represented by formula (1) HOCO(CH2)nCR1R2SH??(1) (in the formula, R1 represents a hydrogen atom or a linear or branched alkyl group having 1 to 10 carbon atoms, R2 represents a linear or branched alkyl group having 1 to 10 carbon atoms, and n represents an integer of 1 to 4), which exhibits a suitable pot life, excellent curability particularly at low and ordinary temperature and low toxicity.Type: GrantFiled: May 27, 2010Date of Patent: October 21, 2014Assignee: Showa Denko K.K.Inventors: Isao Yamagami, Hiroki Takenaka, Katsumi Murofushi
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Publication number: 20120077903Abstract: The present invention relates to epoxy resin coating composition which comprises, at least, epoxy resin, a thiol-type curing agent and a curing assistant, being composed of two liquids of liquid (A) containing epoxy resin and a thiol-type curing agent and liquid (B) containing a curing assistant, which liquids are mixed just before using, wherein the thiol-type curing agent contains a branched compound containing a thiol group (P), which compound is an ester of polyhydric alcohol with thiol group-containing carboxylic acid represented by formula (1) HOCO(CH2)nCR1R2SH??(1) (in the formula, R1 represents a hydrogen atom or a linear or branched alkyl group having 1 to 10 carbon atoms, R2 represents a linear or branched alkyl group having 1 to 10 carbon atoms, and n represents an integer of 1 to 4), which exhibits a suitable pot life, excellent curability particularly at low and ordinary temperature and low toxicity.Type: ApplicationFiled: May 27, 2010Publication date: March 29, 2012Applicant: SHOWA DENKO K.K.Inventors: Isao Yamagami, Hiroki Takenaka, Katsumi Murofushi