Patents by Inventor Akira Nagai
Akira Nagai 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: 11608455Abstract: Disclosed is a method for manufacturing a semiconductor device which includes: a semiconductor chip; a substrate and/or another semiconductor chip; and an adhesive layer interposed therebetween. This method comprises the steps of: heating and pressuring a laminate having: the semiconductor chip; the substrate; the another semiconductor chip or a semiconductor wafer; and the adhesive layer by interposing the laminate with pressing members for temporary press-bonding to thereby temporarily press-bond the substrate and the another semiconductor chip or the semiconductor wafer to the semiconductor chip; and heating and pressuring the laminate by interposing the laminate with pressing members for main press-bonding, which are separately prepared from the pressing members for temporary press-bonding, to thereby electrically connect a connection portion of the semiconductor chip and a connection portion of the substrate or the another semiconductor chip.Type: GrantFiled: November 12, 2019Date of Patent: March 21, 2023Assignee: Showa Denko Materials Co., Ltd.Inventors: Kazutaka Honda, Koichi Chabana, Keishi Ono, Akira Nagai
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Patent number: 11566339Abstract: A plating method capable of controlling a concentration of an additive within a proper range during plating of a substrate is disclosed. The plating method includes: disposing an anode and a substrate, having a via-hole formed in a surface thereof, so as to face each other in a plating solution containing an additive; applying a voltage between the anode and the substrate for filling the via-hole with metal; measuring the voltage applied to the substrate; calculating an amount of change in the voltage per predetermined time; and adjusting a concentration of the additive in the plating solution to keep the amount of change in the voltage within a predetermined control range.Type: GrantFiled: February 4, 2021Date of Patent: January 31, 2023Assignee: EBARA CORPORATIONInventors: Yusuke Tamari, Akira Owatari, Mizuki Nagai, Shingo Yasuda
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Patent number: 11535782Abstract: In one aspect, the present invention provides a resin member comprising a copolymer of ethylene and an olefin having 3 or more carbon atoms, and a straight-chain saturated hydrocarbon compound.Type: GrantFiled: October 7, 2016Date of Patent: December 27, 2022Assignee: SHOWA DENKO MATERIALS CO., LTD.Inventors: Akira Nagai, Tsuyoshi Morimoto, Teiichi Inada
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Patent number: 11504883Abstract: Provided is a resin particle producing method including: a fiber aggregate producing step of directly joining fibers containing a thermoplastic resin with each other to obtain a fiber aggregate; and a particle forming step of forming the fiber aggregate into particles to obtain resin particles.Type: GrantFiled: November 9, 2018Date of Patent: November 22, 2022Assignee: Ricoh Company, Ltd.Inventors: Nozomu Tamoto, Hitoshi Iwatsuki, Yasuo Suzuki, Yasuyuki Yamashita, Sohichiroh Iida, Shinzo Higuchi, Akira Saito, Kiichi Kamoda, Yoshihiko Furugohri, Shinsuke Nagai
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Publication number: 20220337403Abstract: A terminal for performing authentication through TLS 1.3 with a server connected via a communication network. The terminal includes a memory and a processor configured to execute transmitting, to the server, a ClientHello message including a first identifier and a first short-term public key, which are needed to generate a shared key for encrypting a message during a handshake in the TLS 1.3, through key exchange with mutual authentication using ID-based encryption; receiving, from the server, a ServerHello message including a second identifier and a second short-term public key, which are needed to generate the shared key; and generating the shared key using the first identifier, the first short-term public key, the second identifier, and the second short-term public key.Type: ApplicationFiled: October 4, 2019Publication date: October 20, 2022Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventor: Akira NAGAI
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Patent number: 11472320Abstract: In the vehicle seat, rear suspension members are provided at two positions spaced away from each other in a lateral direction on an edge of a seat cushion near a seatback, and support the seat cushion while the seat cushion is suspended from a seat cushion support frame so that the seat cushion is movable in the lateral direction. A front suspension member is provided at one position or two positions spaced away from each other in the lateral direction on ahead of the rear suspension members, and supports the seat cushion while the seat cushion is suspended from the seat cushion support frame so that the seat cushion is movable in the lateral direction.Type: GrantFiled: February 20, 2020Date of Patent: October 18, 2022Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tetsuya Nagai, Kohshi Katoh, Takashi Sugimoto, Osamu Oda, Ryunosuke Seki, Kenji Iida, Akira Takinami, Masatoshi Hada
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Patent number: 11458874Abstract: A vehicle seat includes a lock-to-neutral-position mechanism that locks a seat cushion at a neutral position, and an immediate lock mechanism that locks the seat cushion immediately at a current position when locking is required. A steering sensor senses a steering angle and a steering angular velocity. The immediate lock mechanism performs the locking when the steering angle is large, whereas the lock-to-neutral-position mechanism performs the locking when the steering velocity is high. When the steering wheel is at the neutral position, the locking by the immediate lock mechanism is released and the locking is switched over to the lock-to-neutral-position mechanism that is in a lock ready state.Type: GrantFiled: October 9, 2019Date of Patent: October 4, 2022Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tetsuya Nagai, Takashi Sugimoto, Osamu Oda, Kohshi Katoh, Akira Takinami, Masatoshi Hada
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Publication number: 20220303124Abstract: A key exchange system in which a shared key is generated for executing encrypted communication between communication apparatuses according to an authenticated key exchange protocol using ID-based encryption, wherein each communication apparatus includes a memory and a processor configured to generate a short-term private key by using a private key of the communication apparatus; generate a short-term public key of the communication apparatus by using the short-term private key; generate private information on the communication apparatus by using the short-term private key, a short-term public key generated by another communication apparatus, and public information generated by the communication apparatus and said another communication apparatus or public information generated by a key delivering center; and generate the shared key for executing encrypted communication with said another communication apparatus by executing a pairing operation using the private key of the communication apparatus and the privateType: ApplicationFiled: July 16, 2020Publication date: September 22, 2022Applicants: NIPPON TELEGRAPH AND TELEPHONE CORPORATION, NATIONAL UNIVERSITY CORPORATION TOYOHASHI UNIVERSITY OF TECHNOLOGYInventors: Junichi TOMIDA, Fumitaka HOSHINO, Akira NAGAI, Atsushi FUJIOKA, Koutarou SUZUKI
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Publication number: 20220292665Abstract: A synthetic image is created by calculating a statistical variation value in a plurality of images using the plurality of images obtained by an image-capturing means (8) continuously capturing a workpiece (1) in a state where the workpiece is illuminated by a lighting device (6) that causes a periodic luminance change at a same position of the workpiece that is a detection target of a surface defect, the plurality of images being obtained in one period of the periodic luminance change, and a defect is detected based on a synthetic image created by the image synthesis means.Type: ApplicationFiled: September 4, 2020Publication date: September 15, 2022Inventors: SHOTA UEKI, AKIRA YAHASHI, YOSHIROH NAGAI, RYUICHI YOSHIDA
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Patent number: 11441022Abstract: In one aspect, the present invention is a resin member comprising a copolymer of ethylene and an olefin having 3 or more carbon atoms, a straight-chain saturated hydrocarbon compound, and a gelling agent.Type: GrantFiled: October 4, 2017Date of Patent: September 13, 2022Assignee: SHOWA DENKO MATERIALS CO., LTD.Inventors: Akira Nagai, Tsuyoshi Morimoto, Teiichi Inada
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Publication number: 20220228285Abstract: Provided are a plating method, an insoluble anode and a plating apparatus capable of reducing consumption of an additive in a plating solution, when plating a substrate including a via or a hole for forming a through electrode. The plating method includes the steps of preparing a substrate including a via or a hole for forming a through electrode, preparing a plating solution tank that is divided, by a diaphragm, into an anode tank in which an insoluble anode is disposed and a cathode tank in which the substrate is disposed, and electroplating the substrate with an anode current density when plating the substrate in the plating solution tank being equal to or more than 0.4 ASD and equal to or less than 1.4 ASD.Type: ApplicationFiled: May 13, 2020Publication date: July 21, 2022Inventors: Hiroyuki Kanda, Naoki Shimomura, Mizuki Nagai, Shingo Yasuda, Akira Owatari
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Publication number: 20220224520Abstract: A key exchange system, for generating a shared key for performing encrypted communication between multiple communication devices, includes the multiple communication devices. Each of the multiple communication devices includes a memory, and a processor configured to generate a short term private key by using a private key, generate a short term public key on one of asymmetric pairing groups used for the ID based encryption, by using the short term private key, and generate a shared key for performing encrypted communication with another communication device by performing a first pairing operation using a private key generated on another one of the asymmetric pairing groups and a short term public key generated in the other communication device, and performing a second pairing operation using the short term private key of the communication device and public information used in generating a private key of the other communication device.Type: ApplicationFiled: May 29, 2019Publication date: July 14, 2022Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Junichi TOMIDA, Fumitaka HOSHINO, Akira NAGAI
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Patent number: 11352466Abstract: An aspect of the present invention is a resin composition comprising: an acrylic resin; and a curing agent, wherein the acrylic resin is a resin obtained by polymerizing monomer components comprising a first monomer represented by the following formula (1): wherein R1 represents a hydrogen atom or a methyl group, and R2 represents an alkyl group having 12 to 30 carbon atoms, and a second monomer copolymerizable with the first monomer and having a reactive group capable of reacting with the curing agent.Type: GrantFiled: May 10, 2018Date of Patent: June 7, 2022Assignee: SHOWA DENKO MATERIALS CO., LTD.Inventors: Naoki Furukawa, Akira Nagai, Tsuyoshi Morimoto, Keiko Kizawa, Nozomi Matsubara
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Publication number: 20210344515Abstract: An authentication-permission system includes devices, and a server to generate a private key for each device, and to deliver an extension identifier including an identifier to identify the device and permission information on the device. The server holds the identifier and the permission information on the device; generates the private key for the device from the extension identifier that includes the identifier to identify the device and the permission information; and delivers the generated private key, and the extension identifier to the device. The device executes mutual authentication with another device, by using the extension identifier and the private key of the device, and permits the other device a request to the device, in accordance with the permission information included in the extension identifier of the other device, in response to successful execution of the mutual authentication with the other device.Type: ApplicationFiled: October 18, 2019Publication date: November 4, 2021Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Sakurako TAMURA, Akira NAGAI
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Publication number: 20210301059Abstract: An aspect according to the present invention provides an acrylic resin including a first structural unit represented by formula (1) and a second structural unit represented by formula (2): [in the formula (1), R1 represents a hydrogen atom or a methyl group, and R2 represents an alkyl group having 12-30 carbon atoms] [in the formula (2), R3 and R5 each independently represent a hydrogen atom or a methyl group, and R4 represents a divalent organic group].Type: ApplicationFiled: June 27, 2019Publication date: September 30, 2021Applicant: Showa Denko Materials Co., Ltd.Inventors: Naoki FURUKAWA, Nozomi MATSUBARA, Tsuyoshi MORIMOTO, Akira NAGAI
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Publication number: 20210261706Abstract: An aspect of the present invention provides a resin composition containing an acrylic resin which is obtained by polymerizing a monomer component including: a first monomer represented by formula (1); and a second monomer which is copolymerizable with the first monomer and has a block isocyanate group. (In the formula, R1 represents a hydrogen atom or a methyl group, and R2 represents an alkyl group having 12-30 carbon atoms.Type: ApplicationFiled: June 27, 2019Publication date: August 26, 2021Applicant: Showa Denko Materials Co., Ltd.Inventors: Naoki FURUKAWA, Tsuyoshi MORIMOTO, Akira NAGAI, Nozomi MATSUBARA
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Publication number: 20210246349Abstract: An aspect of the present invention is a resin composition containing an acrylic resin obtained by polymerizing a monomer component including: a first monomer represented by formula (1); and a second monomer copolymerizable with the first monomer and having a reactive group. [In the formula, R1 represents a hydrogen atom or a methyl group, and R2 represents a group having a polyoxyalkylene chain.Type: ApplicationFiled: May 10, 2019Publication date: August 12, 2021Applicant: Showa Denko Materials Co., Ltd.Inventors: Naoki FURUKAWA, Tsuyoshi MORIMOTO, Atsuko SANO, Hiroshi YOKOTA, Nozomi MATSUBARA, Akira NAGAI, Keiko KIZAWA
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Publication number: 20210211275Abstract: A key sharing system that generates a shared key that is used to perform encrypted communication between a first device and a second device according to an authenticated key sharing protocol, at least one device of the first device and the second device including: calculation means for calculating a shared value ?j of shared values ?i (i=1, . . . , n) that are used to generate the shared key, the shared value ?j being calculated through pairing computation, using a private key DA,1 as an input; entrusting means for entrusting an information processing apparatus that is connected to the device via a network, with calculation of a shared value ?k (k?j) of the shared values ?i (i=1, . . . , n), the shared value ?k being calculated through pairing computation, using a private key DA,2 as an input; and key generation means for generating the shared key, using the shared value ?j calculated by the calculation means and the shared value ?k calculated by the information processing apparatus.Type: ApplicationFiled: April 25, 2019Publication date: July 8, 2021Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Akira NAGAI, Kotaro SUZUKI
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Patent number: 10979411Abstract: A client apparatus converts second input authentication information having a data content compliant with a second authentication method different from a first authentication method into authentication target information in a data format compliant with the first authentication method and transmits information corresponding to the authentication target information to a communication server apparatus. A server apparatus is capable of carrying out both a first process of providing a first authentication server apparatus that carries out an authentication process compliant with the first authentication method with first information corresponding to the authentication target information and a second process of providing a second authentication server apparatus that carries out an authentication process compliant with the second authentication method with second information corresponding to the authentication target information.Type: GrantFiled: December 15, 2016Date of Patent: April 13, 2021Assignees: NIPPON TELEGRAPH AND TELEPHONE CORPORATION, NTT Innovation Institute, Inc.Inventors: Tetsutaro Kobayashi, Hitoshi Fuji, Akira Nagai, Go Yamamoto
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Publication number: 20210024803Abstract: A resin member contains a copolymer of ethylene and an olefin having 3 or more carbon atoms, and a fatty acid ester.Type: ApplicationFiled: April 4, 2018Publication date: January 28, 2021Inventors: Keiko KIZAWA, Akira NAGAI, Tsuyoshi MORIMOTO, Naoki FURUKAWA, Nozomi MATSUBARA