Patents by Inventor Keishi Tada
Keishi Tada 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: 20250048822Abstract: A photoelectric conversion element includes a light absorbing layer, a hole transport layer that transports holes generated by photoexcitation of the light absorbing layer, and a transparent conductive layer that is in contact with the hole transport layer and receives holes from the hole transport layer. The carrier density of the transparent conductive layer is more than 1×1016 cm?3 and 1×1020 cm?3 or less.Type: ApplicationFiled: December 8, 2022Publication date: February 6, 2025Applicants: IDEMITSU KOSAN CO.,LTD., THE UNIVERSITY OF TOKYOInventors: Motoshi NAKAMURA, Issei TAKENAKA, Hiroshi SEGAWA, Keishi TADA, Takeru BESSHO
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Patent number: 11135755Abstract: A method of manufacturing a molded article, which comprises: (a) a step of manufacturing the molded article by use of a laminate that has a first layer comprising polypropylene, and a second layer comprising one or more selected from the group consisting of polyethylene, polyamide, an ethylene-vinyl alcohol copolymer, and an ethylene-vinyl acetate copolymer.Type: GrantFiled: January 20, 2017Date of Patent: October 5, 2021Assignee: IDEMITSU UNITECH CO., LTD.Inventors: Tatsuro Matsuura, Kaname Kondo, Keishi Tada
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Patent number: 10791593Abstract: An organic EL display unit includes a first substrate, a second substrate, a display layer, and a sealing section. The display layer is provided between the first substrate and the second substrate. The display layer includes an organic layer. The sealing section is provided continuously from an end surface of the display layer to at least a portion of respective end surfaces of the first substrate and the second substrate.Type: GrantFiled: July 30, 2018Date of Patent: September 29, 2020Assignee: Sony CorporationInventors: Keishi Tada, Jiro Yamada, Shinichiro Morikawa, Masaaki Sekine, Naoki Matsushita, Kohji Hanawa
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Publication number: 20190176437Abstract: A laminate including, in the following order: a first layer formed of polypropylene containing a smectic crystal; and a second layer formed of a resin composition containing a thermoplastic resin and a metal foil powder, wherein the metal foil powder is a flattened piece having a laminate structure in which both surfaces of a metal thin film layer are each covered with a transparent thin film layer.Type: ApplicationFiled: June 2, 2017Publication date: June 13, 2019Applicants: IDEMITSU UNITECH CO., LTD., OIKE & CO., LTD.Inventors: Kaname KONDO, Ryosuke ARAKI, Keishi TADA, Tatsuro MATSUURA, Yusuke KAINOU, Norio HAKIRI
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Publication number: 20190022911Abstract: A method of manufacturing a molded article, which comprises: (a) a step of manufacturing the molded article by use of a laminate that has a first layer comprising polypropylene, and a second layer comprising one or more selected from the group consisting of polyethylene, polyamide, an ethylene-vinyl alcohol copolymer, and an ethylene-vinyl acetate copolymer.Type: ApplicationFiled: January 20, 2017Publication date: January 24, 2019Applicant: IDEMITSU UNITECH CO., LTD.Inventors: Tatsuro MATSUURA, Kaname KONDO, Keishi TADA
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Publication number: 20190008015Abstract: An organic EL display unit includes a first substrate, a second substrate, a display layer, and a sealing section. The display layer is provided between the first substrate and the second substrate. The display layer includes an organic layer. The sealing section is provided continuously from an end surface of the display layer to at least a portion of respective end surfaces of the first substrate and the second substrate.Type: ApplicationFiled: July 30, 2018Publication date: January 3, 2019Inventors: Keishi Tada, Jiro Yamada, Shinichiro Morikawa, Masaaki Sekine, Naoki Matsushita, Kohji Hanawa
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Patent number: 10064252Abstract: An organic EL display unit includes a first substrate, a second substrate, a display layer, and a sealing section. The display layer is provided between the first substrate and the second substrate. The display layer includes an organic layer. The sealing section is provided continuously from an end surface of the display layer to at least a portion of respective end surfaces of the first substrate and the second substrate.Type: GrantFiled: September 14, 2015Date of Patent: August 28, 2018Assignee: Sony CorporationInventors: Keishi Tada, Jiro Yamada, Shinichiro Morikawa, Masaaki Sekine, Naoki Matsushita, Kohji Hanawa
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Publication number: 20170280531Abstract: An organic EL display unit includes a first substrate, a second substrate, a display layer, and a sealing section. The display layer is provided between the first substrate and the second substrate. The display layer includes an organic layer. The sealing section is provided continuously from an end surface of the display layer to at least a portion of respective end surfaces of the first substrate and the second substrate.Type: ApplicationFiled: September 14, 2015Publication date: September 28, 2017Inventors: Keishi Tada, Jiro Yamada, Shinichiro Morikawa, Masaaki Sekine, Naoki Matsushita, Kohji Hanawa
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Publication number: 20140174524Abstract: Provided are a counter electrode, which is excellent in electrolytic solution resistance and electrical conductivity, and which is capable of corresponding to an application process carried out by pattern printing during a manufacturing process, a photoelectric conversion element using the counter electrode, and a method for manufacturing the same. A dye-sensitized photoelectric conversion element has a structure in which an electrolyte layer is filled between a porous electrode to which a photosensitizing dye is adsorbed and a counter electrode. The counter electrode includes: a metal counter electrode; a conductive primer layer that contains conductive carbon, and at least one resin selected among a polyamide imide resin, a polyamide resin, and polyimide resin as a binder resin; and a catalyst layer containing conductive carbon and an inorganic binder. The metal counter electrode and the catalyst layer are formed to come into close contact with each other through the conductive primer layer.Type: ApplicationFiled: June 22, 2012Publication date: June 26, 2014Applicant: Sony CorporationInventors: Yoshiaki Obana, Keishi Tada, Harumi Takada, Ryo Sasaki, Yusuke Suzuki
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Publication number: 20110240086Abstract: The present invention is to provide a photoelectric conversion device including: a first substrate; a collector layer configured to be provided over the first substrate; a second substrate configured to be opposed to a planar surface of the first substrate and be formed of a metal having a concave notch part at one side; and a connection terminal configured to be connected to the collector layer. The connection terminal is disposed opposed to the concave notch part.Type: ApplicationFiled: March 22, 2011Publication date: October 6, 2011Applicant: Sony CorporationInventors: Masahiro Morooka, Keishi Tada
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Publication number: 20110226325Abstract: Photoelectric conversion elements suitable for various applications and related components, and methods associated therewith, are described. A photoelectric conversion element may include a catalyst layer having at least two portions that are spaced from one another, and a current collector having a tip portion that extends toward or within the space between portions of the catalyst layer. A photoelectric conversion element may also include a semiconductor layer disposed a distance of between about 5 microns and about 20 microns away from the catalyst layer.Type: ApplicationFiled: March 10, 2011Publication date: September 22, 2011Applicant: Sony CorporationInventors: Masahiro Morooka, Jusuke Shimura, Reiko Yoneya, Keishi Tada
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Publication number: 20110155223Abstract: The present invention provides a dye-sensitized solar cell which can obtain a high photoelectric conversion efficiency, which can be manufactured at a low cost, and which is superior in a design property, and a method of manufacturing the same. Dye supporting porous titanium oxide layers 2a to 2d are formed on a transparent conductive substrate 1 so as to display predetermined colors, respectively, and compose predetermined patterns, respectively, in accordance with selection of a thickness, a lamination structure, a particle diameter of titanium oxide fine particles, or a combination ratio of two or more kinds of titanium oxide fine particles when titanium oxide fine particles are composed of the two or more kinds of titanium oxide fine particles different in particle diameter from one another.Type: ApplicationFiled: June 17, 2009Publication date: June 30, 2011Applicant: Sony CorporationInventors: Masahiro Morooka, Reiko Yoneya, Harumi Takada, Masaki Orihashi, Cheng Zhu, Yusuke Suzuki, Kazuhiro Noda, Keishi Tada, Natsuki Kubo, Megumi Miki, Mitsuhiro Nakamura
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Publication number: 20100144083Abstract: The present invention relates to a method of manufacturing a photoelectric conversion device in which selective dye adsorption can be performed easily. In the step of a dye adsorbing process, a material unit 21 having partition walls of a predetermined shape is placed over semiconductor electrodes 121 to 123, which are a titanium oxide electrode. The material unit 21 is laminated by a UV cure adhesive. Dye solutions S1 to S3 obtained by dissolving each of three kinds of dyes of N719, Black dye, and D149, for example, into a CH3CN/t-BuOH mixed solution are put in each of sections divided by the partition walls. The material unit 21 is inverted in that state, and left standing still for 24 hours. Then, the adhesive is removed after passage of the 24 hours. Thus, the semiconductor electrodes 121 to 123 having regions corresponding to the sections which regions are colored with the three different kinds of dyes are obtained.Type: ApplicationFiled: June 24, 2009Publication date: June 10, 2010Applicant: Sony CorporationInventors: Yusuke Suzuki, Masahiro Morooka, Keishi Tada, Yasunori Nagano, Reiko Yoneya, Masaki Orihashi, Harumi Takada, Cheng Zhu
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Patent number: 6500223Abstract: A coated granular fertilizer which comprises a degradable film containing 10% by weight or more of a polyolefin and/or petroleum wax having a weight-average molecular weight of 300-10,000 and an inorganic filler and/or a surface active agent and a granular fertilizer coated with said degradable film.Type: GrantFiled: August 13, 1999Date of Patent: December 31, 2002Assignee: Asahi Kasei Kabushiki KaishaInventors: Yuichi Sakai, Keishi Tada, Hiroyuki Kobayashi
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Patent number: 5147175Abstract: A semiconductor wafer transfer device includes a rotary member, a driving member which rotates coaxially with the rotary member, a driven member which is driven by the driving member and a frog leg linkage having a first link with an end fixed to the driving member, a second link with an end fixed to the driven member, a third link having an end pivotally joined to another end of the first link, and a fourth link having an end pivotally joined to the other end of the second link. A wafer support plate is supported on the other ends of the third and fourth links. An auxiliary escape mechanism is provided for moving the frog leg linkage out of its dead point. The mechanism includes a first pulley coaxillary fixed to the rotary member with the driving member, a second pulley rotatably supported on a pivot shaft pivotally joining the first and the third links, and a belt wound around the first and second pulleys.Type: GrantFiled: December 27, 1991Date of Patent: September 15, 1992Assignee: Sony CorporationInventor: Keishi Tada
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Patent number: 4430445Abstract: Novel imidazolylmethylstyrene compounds which are basic compounds and have excellent resistance to oxidation and high polymerizability are disclosed. The basic compound of the present invention is prepared by reacting a halogenomethyl-styrene with an imidazole compound, and can be used, for example, as a curing agent for epoxy resins. The imidazolymethylstyrene compounds are readily homopolymerized or copolymerized to provide linear homopolymers, linear copolymers or cross-linked copolymers having pendant imidazolylmethylphenyl groups. These polymers have greater resistance to oxidation than the homologues, and are useful as an ion exchange resin, extractant of metals, sizing agent and antistatic agent.Type: GrantFiled: December 30, 1981Date of Patent: February 7, 1984Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Tetsuya Miyake, Kunihiko Takeda, Keishi Tada