Patents by Inventor Kei Akiyama

Kei Akiyama 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).

  • Publication number: 20240117250
    Abstract: A photo-alignment thermosetting liquid crystal composition including: a side-chain liquid crystal polymer which contains a liquid crystal constitutional unit containing a liquid crystal moiety in a side chain and a non-liquid crystal constitutional unit containing an alkylene group in a side chain, a copolymer which contains a photo-alignment constitutional unit containing a photo-alignment group in a side chain and a thermally crosslinkable constitutional unit containing a thermally crosslinkable group in a side chain, and in which the photo-alignment constitutional unit does not contain a linear alkylene group between the photo-alignment group and a monomer unit, and a thermal crosslinking agent for bonding to the thermally crosslinkable group of the thermally crosslinkable constitutional unit.
    Type: Application
    Filed: January 21, 2022
    Publication date: April 11, 2024
    Applicant: DAI NIPPON PRINTING CO., LTD.
    Inventors: Shunsuke IRIE, Ken-ichi OKUYAMA, Kazuyuki OKADA, Terutaka TAKAHASHI, Kei AKIYAMA
  • Patent number: 11921823
    Abstract: According to one or more embodiments, an image processing device includes a storage device and a processor. The storage device stores a plurality of time-series images. The processor extracts one or more feature points of a first image of the time-series images, sets a search range for one or more corresponding points of the feature points in a second image of the time-series images, searches for the one or more corresponding points in the search range of the second image, if there are a plurality of corresponding points searched, associates the searched corresponding points with the feature points based on a positional relationship between the corresponding points.
    Type: Grant
    Filed: August 5, 2021
    Date of Patent: March 5, 2024
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Electronic Devices & Storage Corporation
    Inventors: Toshitaka Akiyama, Kei Takizawa, Io Ozawa
  • Publication number: 20230137250
    Abstract: A polymerizable liquid crystal compound represented by the following general formula (1): (the symbols in the general formula (1) are as described in the DESCRIPTION.
    Type: Application
    Filed: December 14, 2022
    Publication date: May 4, 2023
    Applicant: DAI NIPPON PRINTING CO., LTD.
    Inventors: Mami MOTOOKA, Ken-ichi OKUYAMA, Kazuyuki OKADA, Terutaka TAKAHASHI, Mitsuru ENDO, Shunsuke IRIE, Tsuyoshi SAKAGUCHI, Kei AKIYAMA, Kohei ISHIKAWA
  • Patent number: 11560518
    Abstract: A polymerizable liquid crystal compound represented by the following general formula (1): (the symbols in the general formula (1) are as described in the DESCRIPTION.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: January 24, 2023
    Assignee: DAI NIPPON PRINTING CO., LTD.
    Inventors: Mami Motooka, Ken-ichi Okuyama, Kazuyuki Okada, Terutaka Takahashi, Mitsuru Endo, Shunsuke Irie, Tsuyoshi Sakaguchi, Kei Akiyama, Kohei Ishikawa
  • Publication number: 20210380884
    Abstract: A polymerizable liquid crystal compound represented by the following general formula (1): (the symbols in the general formula (1) are as described in the DESCRIPTION.
    Type: Application
    Filed: October 10, 2018
    Publication date: December 9, 2021
    Applicant: DAI NIPPON PRINTING CO., LTD.
    Inventors: Mami MOTOOKA, Ken-ichi OKUYAMA, Kazuyuki OKADA, Terutaka TAKAHASHI, Mitsuru ENDO, Shunsuke IRIE, Tsuyoshi SAKAGUCHI, Kei AKIYAMA, Kohei ISHIKAWA
  • Patent number: 11130348
    Abstract: A printer can comprise an ink head for discharging ink toward a printing medium, and a blowing device for blowing air against the printing medium. The blowing device can comprise a first case that is disposed further rearward, in a direction of movement, than the ink head. The first case can have a first air intake opening for taking in air of the vicinity of the printing medium, a first fan for drawing in air from the first air intake opening and expelling air from a first outlet opening. A second case can be positioned further rearward, in the movement direction Y1, than the first air intake opening, and can have a second air intake opening that opens facing upward and a second fan for drawing in air from the second air intake opening and expelling air toward the printing medium from a second outlet opening. The magnitude of the airflow of the first fan can be less than the magnitude of the airflow of the second fan.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: September 28, 2021
    Assignee: Roland DG Corporation
    Inventors: Yuichi Sugiyama, Kei Akiyama
  • Publication number: 20200376852
    Abstract: A printer can comprise an ink head for discharging ink toward a printing medium, and a blowing device for blowing air against the printing medium. The blowing device can comprise a first case that is disposed further rearward, in a direction of movement, than the ink head. The first case can have a first air intake opening for taking in air of the vicinity of the printing medium, a first fan for drawing in air from the first air intake opening and expelling air from a first outlet opening. A second case can be positioned further rearward, in the movement direction Y1, than the first air intake opening, and can have a second air intake opening that opens facing upward and a second fan for drawing in air from the second air intake opening and expelling air toward the printing medium from a second outlet opening. The magnitude of the airflow of the first fan can be less than the magnitude of the airflow of the second fan.
    Type: Application
    Filed: May 29, 2020
    Publication date: December 3, 2020
    Inventors: Yuichi Sugiyama, Kei Akiyama
  • Publication number: 20170344425
    Abstract: In one example, the disclosure is directed to error-correcting code techniques for managing data in a hard drive. In some examples, a controller of a hard disk drive may cause data including a data band and an associated parity sector to be retrieved from non-volatile memory. The data band may include a number of virtual data tracks, and each virtual data track may include a respective plurality of sectors. The controller may determine that at least one sector of the respective plurality of sectors includes an error that renders the data in the at least one sector unreadable by the controller. The controller may send the data including the data band and the associated parity sector to a host device.
    Type: Application
    Filed: May 26, 2016
    Publication date: November 30, 2017
    Inventors: Kei Akiyama, Martin Aureliano Hassner, Kirk Hwang, Satoshi Yamamoto
  • Patent number: 9257771
    Abstract: According to one embodiment, a card connector in which a card-shaped storage medium having card terminals is inserted so as to be extracted includes connector terminals configured to contact the card terminals and a terminal protecting member. The terminal protecting member includes a coated portion configured to maintain the connector terminals in a state of being in no contact with the card-shaped storage medium while the card-shaped storage medium is inserted in the card housing module up to contact positions where the card terminals contact the connector terminals.
    Type: Grant
    Filed: August 13, 2014
    Date of Patent: February 9, 2016
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Satoru Yasui, Takahiro Sakaguchi, Kei Akiyama
  • Publication number: 20150171534
    Abstract: According to one embodiment, a card connector in which a card-shaped storage medium having card terminals is inserted so as to be extracted includes connector terminals configured to contact the card terminals and a terminal protecting member. The terminal protecting member includes a coated portion configured to maintain the connector terminals in a state of being in no contact with the card-shaped storage medium while the card-shaped storage medium is inserted in the card housing module up to contact positions where the card terminals contact the connector terminals.
    Type: Application
    Filed: August 13, 2014
    Publication date: June 18, 2015
    Inventors: Satoru Yasui, Takahiro Sakaguchi, Kei Akiyama
  • Patent number: 8856618
    Abstract: A technique for recovering of “squeezed” sectors in a set of sequential sectors such as are used in Shingled Magnetic Recording (SMR) is described. Embodiments of the invention use a programmable erased sector recovery scheme, which is a concatenation of a “Cauchy-type” track erasure correction code, together with a media-error correction code that generates N-weighted parity-sectors per track and is capable of replacing up to N-erased sectors per track in any possible combination.
    Type: Grant
    Filed: October 4, 2012
    Date of Patent: October 7, 2014
    Assignee: HGST Netherlands B.V.
    Inventors: Kei Akiyama, Sridhar Chatradhi, Jonathan Darrel Coker, Martin Aureliano Hassner, Kirk Hwang, Roger William Wood
  • Publication number: 20140101515
    Abstract: A technique for recovering of “squeezed” sectors in a set of sequential sectors such as are used in Shingled Magnetic Recording (SMR) is described. Embodiments of the invention use a programmable erased sector recovery scheme, which is a concatenation of a “Cauchy-type” track erasure correction code, together with a media-error correction code that generates N-weighted parity-sectors per track and is capable of replacing up to N-erased sectors per track in any possible combination.
    Type: Application
    Filed: October 4, 2012
    Publication date: April 10, 2014
    Applicant: HGST NETHERLANDS B.V.
    Inventors: Kei Akiyama, Sridhar Chatradhi, Jonathan Darrel Coker, Martin Aureliano Hassner, Kirk Hwang, Roger William Wood
  • Patent number: 8429499
    Abstract: A disk drive for encrypting user data. A motor configured to rotate a disk which stores encoded user data and an encryption flag which has not been encoded. An encoder/decoder processor configured to encode the user data that is written into the disk without encoding the encryption flag, and decodes the user data that is read out from the disk without decoding the encryption flag that is read out from the disk. An encryption processor configured to encrypt the user data at the encryption flag, wherein the encryption flag indicates encryption before the encoder/decoder processor starts encoding, and wherein the encryption processor obtains an encryption flag read out from the disk before the encoder/decoder processor completes decoding of the user data read out from the disk, commencing decryption of decoded data where the encryption flag indicates encryption before decoding of the user data is complete.
    Type: Grant
    Filed: December 7, 2010
    Date of Patent: April 23, 2013
    Assignee: HGST Netherlands B.V.
    Inventors: Kei Akiyama, Yasuhiro Takase, Noritoshi Shinto
  • Patent number: 8391205
    Abstract: When a browser is started up by a user, a packet call establishment request unit of a cellular phone requests the start of processing for establishing a packet call, and a communication control unit executes a packet all establishment processing. A mobile communication network sends a packet call establishment response message to the cellular phone, then sends packet data. A packet date storage unit of the cellular phone stores the packet data in a memory when packet data is received before the packet call establishment response message. If the packet call establishment response message is received thereafter, the packet data storage unit reads the packet data from the memory, and deletes the packet data from the memory. The packet processing execution unit displays a screen corresponding to the packet data on the display. Thereby, instances when packet data is discarded is decreased.
    Type: Grant
    Filed: November 27, 2006
    Date of Patent: March 5, 2013
    Assignee: NTT DoCoMo, Inc.
    Inventors: Kenji Tsuruta, Aki Ohashi, Hiromi Himeno, Masashi Kanauchi, Kei Akiyama
  • Publication number: 20110145680
    Abstract: A disk drive for encrypting user data. A motor configured to rotate a disk which stores encoded user data and an encryption flag which has not been encoded. An encoder/decoder processor configured to encode the user data that is written into the disk without encoding the encryption flag, and decodes the user data that is read out from the disk without decoding the encryption flag that is read out from the disk. An encryption processor configured to encrypt the user data at the encryption flag, wherein the encryption flag indicates encryption before the encoder/decoder processor starts encoding, and wherein the encryption processor obtains an encryption flag read out from the disk before the encoder/decoder processor completes decoding of the user data read out from the disk, commencing decryption of decoded data where the encryption flag indicates encryption before decoding of the user data is complete.
    Type: Application
    Filed: December 7, 2010
    Publication date: June 16, 2011
    Inventors: Kei AKIYAMA, Yasuhiro TAKASE, Noritoshi SHINTO
  • Publication number: 20090196220
    Abstract: When a browser is started up by a user, a packet call establishment request unit of a cellular phone requests the start of processing for establishing a packet call, and a communication control unit executes a packet all establishment processing. A mobile communication network sends a packet call establishment response message to the cellular phone, then sends packet data. A packet date storage unit of the cellular phone stores the packet data in a memory when packet data is received before the packet call establishment response message. If the packet call establishment response message is received thereafter, the packet data storage unit reads the packet data from the memory, and deletes the packet data from the memory. The packet processing execution unit displays a screen corresponding to the packet data on the display. Thereby, instances when packet data is discarded is decreased.
    Type: Application
    Filed: November 27, 2006
    Publication date: August 6, 2009
    Applicant: NTT DoCoMo, Inc.
    Inventors: Kenji Tsuruta, Aki Ohashi, Hiromi Himeno, Masashi Kanauchi, Kei Akiyama