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).

  • Patent number: 11608455
    Abstract: 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: Grant
    Filed: November 12, 2019
    Date of Patent: March 21, 2023
    Assignee: Showa Denko Materials Co., Ltd.
    Inventors: Kazutaka Honda, Koichi Chabana, Keishi Ono, Akira Nagai
  • Patent number: 11566339
    Abstract: 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: Grant
    Filed: February 4, 2021
    Date of Patent: January 31, 2023
    Assignee: EBARA CORPORATION
    Inventors: Yusuke Tamari, Akira Owatari, Mizuki Nagai, Shingo Yasuda
  • Patent number: 11535782
    Abstract: 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: Grant
    Filed: October 7, 2016
    Date of Patent: December 27, 2022
    Assignee: SHOWA DENKO MATERIALS CO., LTD.
    Inventors: Akira Nagai, Tsuyoshi Morimoto, Teiichi Inada
  • Patent number: 11504883
    Abstract: 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: Grant
    Filed: November 9, 2018
    Date of Patent: November 22, 2022
    Assignee: Ricoh Company, Ltd.
    Inventors: Nozomu Tamoto, Hitoshi Iwatsuki, Yasuo Suzuki, Yasuyuki Yamashita, Sohichiroh Iida, Shinzo Higuchi, Akira Saito, Kiichi Kamoda, Yoshihiko Furugohri, Shinsuke Nagai
  • Publication number: 20220337403
    Abstract: 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: Application
    Filed: October 4, 2019
    Publication date: October 20, 2022
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventor: Akira NAGAI
  • Patent number: 11472320
    Abstract: 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: Grant
    Filed: February 20, 2020
    Date of Patent: October 18, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tetsuya Nagai, Kohshi Katoh, Takashi Sugimoto, Osamu Oda, Ryunosuke Seki, Kenji Iida, Akira Takinami, Masatoshi Hada
  • Patent number: 11458874
    Abstract: 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: Grant
    Filed: October 9, 2019
    Date of Patent: October 4, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tetsuya Nagai, Takashi Sugimoto, Osamu Oda, Kohshi Katoh, Akira Takinami, Masatoshi Hada
  • Publication number: 20220303124
    Abstract: 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 private
    Type: Application
    Filed: July 16, 2020
    Publication date: September 22, 2022
    Applicants: NIPPON TELEGRAPH AND TELEPHONE CORPORATION, NATIONAL UNIVERSITY CORPORATION TOYOHASHI UNIVERSITY OF TECHNOLOGY
    Inventors: Junichi TOMIDA, Fumitaka HOSHINO, Akira NAGAI, Atsushi FUJIOKA, Koutarou SUZUKI
  • Publication number: 20220292665
    Abstract: 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: Application
    Filed: September 4, 2020
    Publication date: September 15, 2022
    Inventors: SHOTA UEKI, AKIRA YAHASHI, YOSHIROH NAGAI, RYUICHI YOSHIDA
  • Patent number: 11441022
    Abstract: 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: Grant
    Filed: October 4, 2017
    Date of Patent: September 13, 2022
    Assignee: SHOWA DENKO MATERIALS CO., LTD.
    Inventors: Akira Nagai, Tsuyoshi Morimoto, Teiichi Inada
  • Publication number: 20220228285
    Abstract: 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: Application
    Filed: May 13, 2020
    Publication date: July 21, 2022
    Inventors: Hiroyuki Kanda, Naoki Shimomura, Mizuki Nagai, Shingo Yasuda, Akira Owatari
  • Publication number: 20220224520
    Abstract: 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: Application
    Filed: May 29, 2019
    Publication date: July 14, 2022
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Junichi TOMIDA, Fumitaka HOSHINO, Akira NAGAI
  • Patent number: 11352466
    Abstract: 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: Grant
    Filed: May 10, 2018
    Date of Patent: June 7, 2022
    Assignee: SHOWA DENKO MATERIALS CO., LTD.
    Inventors: Naoki Furukawa, Akira Nagai, Tsuyoshi Morimoto, Keiko Kizawa, Nozomi Matsubara
  • Publication number: 20210344515
    Abstract: 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: Application
    Filed: October 18, 2019
    Publication date: November 4, 2021
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Sakurako TAMURA, Akira NAGAI
  • Publication number: 20210301059
    Abstract: 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: Application
    Filed: June 27, 2019
    Publication date: September 30, 2021
    Applicant: Showa Denko Materials Co., Ltd.
    Inventors: Naoki FURUKAWA, Nozomi MATSUBARA, Tsuyoshi MORIMOTO, Akira NAGAI
  • Publication number: 20210261706
    Abstract: 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: Application
    Filed: June 27, 2019
    Publication date: August 26, 2021
    Applicant: Showa Denko Materials Co., Ltd.
    Inventors: Naoki FURUKAWA, Tsuyoshi MORIMOTO, Akira NAGAI, Nozomi MATSUBARA
  • Publication number: 20210246349
    Abstract: 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: Application
    Filed: May 10, 2019
    Publication date: August 12, 2021
    Applicant: Showa Denko Materials Co., Ltd.
    Inventors: Naoki FURUKAWA, Tsuyoshi MORIMOTO, Atsuko SANO, Hiroshi YOKOTA, Nozomi MATSUBARA, Akira NAGAI, Keiko KIZAWA
  • Publication number: 20210211275
    Abstract: 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: Application
    Filed: April 25, 2019
    Publication date: July 8, 2021
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Akira NAGAI, Kotaro SUZUKI
  • Patent number: 10979411
    Abstract: 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: Grant
    Filed: December 15, 2016
    Date of Patent: April 13, 2021
    Assignees: NIPPON TELEGRAPH AND TELEPHONE CORPORATION, NTT Innovation Institute, Inc.
    Inventors: Tetsutaro Kobayashi, Hitoshi Fuji, Akira Nagai, Go Yamamoto
  • Publication number: 20210024803
    Abstract: A resin member contains a copolymer of ethylene and an olefin having 3 or more carbon atoms, and a fatty acid ester.
    Type: Application
    Filed: April 4, 2018
    Publication date: January 28, 2021
    Inventors: Keiko KIZAWA, Akira NAGAI, Tsuyoshi MORIMOTO, Naoki FURUKAWA, Nozomi MATSUBARA