Patents by Inventor Hiroyasu Kubo

Hiroyasu Kubo 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: 10750673
    Abstract: An illumination apparatus includes first and second light sources arranged substantially linearly; and a light guide member having first and second light receiving portions, and a light emitting portion. The light receiving portions are configured to refract light from the first and second light sources toward the light emitting portion; and the light emitting portion is configured to refract light from the light receiving portions toward a space between the first and second light sources.
    Type: Grant
    Filed: September 5, 2018
    Date of Patent: August 25, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Keita Motoyama, Yuko Fukui, Hiroyasu Kubo
  • Publication number: 20190075734
    Abstract: A plant cultivation apparatus includes an illuminator, and a light guide member. The illuminator includes a first light source and a second light source which are arranged in series. The light guide member includes a first light receiver, a light emitter, and a second light receiver, and is disposed to cover at least a portion of a non-light emitting portion between the first light source and the second light source. The first light receiver refracts a first light from the first light source to output the first light toward the light emitter. The second light receiver refracts a second light from the second light source to output the second light toward the light emitter. The light emitter refracts the first light and the second light to irradiate a plant cultivation space with the first light and the second light.
    Type: Application
    Filed: September 5, 2018
    Publication date: March 14, 2019
    Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LT D.
    Inventors: Keita MOTOYAMA, Yuko FUKUI, Hiroyasu KUBO
  • Patent number: 8619976
    Abstract: An encryption/decryption method comprises by using a generalized Feistel structure in which data is divided into n pieces and mixing processing with key data is performed, diffusion processing, in which data transformation via linear operation is executed, is performed at least once between rounds of the generalized Feistel structure, wherein. As the diffusion processing, linear transformation is performed in which each of n pieces of output data is operated on by two or more pieces of input data. The method is adapted for encryption or decryption.
    Type: Grant
    Filed: December 11, 2008
    Date of Patent: December 31, 2013
    Assignees: NEC Corporation, NEC Software Hokuriku, Ltd.
    Inventors: Tomoyasu Suzaki, Yukiyasu Tsunoo, Hiroyasu Kubo, Maki Shigeri, Teruo Saito, Takeshi Kawabata, Hiroki Nakashima
  • Patent number: 8374351
    Abstract: Disclosed is an encryption device for generating a pseudo-random number based on a secret key and generates an encrypted text by applying the pseudo-random number sequence to a plain text, uses, an internal state in accordance with a state based on a permutation of a sequence of a finite number of numeric values, as an internal state used for generation of the pseudo-random number sequence, executes a predetermined leftward or rightward rotate shift, depending on a number smaller than an internal state number, based on the result of linear or non-linear, or combination of linear and non-linear using one or more numeric values of the internal state and sets at least one temporary variable used for generation of the pseudo-random number sequence to be a temporary variable having as a value a result of the execution of the predetermined leftward or rightward rotate shift, and generates the pseudo-random number by a predetermined prescribed operation on one or a plurality of numeric values of the internal state a
    Type: Grant
    Filed: July 11, 2007
    Date of Patent: February 12, 2013
    Assignee: NEC Corporation
    Inventors: Yukiyasu Tsunoo, Teruo Saito, Hiroyasu Kubo, Tomoyasu Suzaki
  • Publication number: 20120078415
    Abstract: A parallel link robot (10) allows holding a movable body (13) in midair by connecting a center portion or a peripheral portion of the movable body (13) and a center portion or a peripheral portion of a base (12), using a suspension unit (17) having elasticity such as a constant load spring.
    Type: Application
    Filed: March 16, 2011
    Publication date: March 29, 2012
    Inventors: Hiroyasu Kubo, Satoshi Katsuki, Nobuyuki Suefuji
  • Publication number: 20110110519
    Abstract: A data transmission device (100) performs encryption processing on transmission data, performs encryption processing of a Feistel structure on the obtained first converted data, and performs processing in the relationship of an inverse function with the first encryption processing on the obtained second converted data. A first converting unit (105) divides transmission data into N sets (N being three or greater) of divided transmission data, performs operation processing on the divided transmission data to generate at least N sets of operation processing data, and combines the generated N sets of operation processing data to generate the first converted data.
    Type: Application
    Filed: January 9, 2009
    Publication date: May 12, 2011
    Inventors: Tomoyasu Suzaki, Yukiyasu Tsunoo, Hiroyasu Kubo, Maki Shigeri, Teruo Saito, Takeshi Kawabata, Hiroki Nakashima
  • Publication number: 20100266122
    Abstract: An encryption/decryption method comprises by using a generalized Feistel structure in which data is divided into n pieces and mixing processing with key data is performed, diffusion processing, in which data transformation via linear operation is executed, is performed at least once between rounds of the generalized Feistel structure, wherein. As the diffusion processing, linear transformation is performed in which each of n pieces of output data is operated on by two or more pieces of input data. The method is adapted for encryption or decryption.
    Type: Application
    Filed: December 11, 2008
    Publication date: October 21, 2010
    Applicants: NEC CORPORATION, NEC SOFTWARE HOKURIKU, LTD.
    Inventors: Tomoyasu Suzaki, Yukiyasu Tsunoo, Hiroyasu Kubo, Maki Shigeri, Teruo Saito, Takeshi Kawabata, Hiroki Nakashima
  • Publication number: 20100128870
    Abstract: A pseudorandom number generation apparatus used for a stream cipher comprises at least one internal state, a non-linear conversion means that updates numeric data saved in the internal state, and a transposition means that performs only bit transposition for the numeric data, updated by the non-linear conversion means, based on a predefined rule.
    Type: Application
    Filed: March 25, 2008
    Publication date: May 27, 2010
    Inventors: Yukiyasu Tsunoo, Hiroyasu Kubo, Tomoyasu Suzaki, Teruo Saito, Hiroki Nakashima
  • Publication number: 20090323956
    Abstract: Disclosed is an encryption device for generating a pseudo-random number based on a secret key and generates an encrypted text by applying the pseudo-random number sequence to a plain text, uses, an internal state in accordance with a state based on a permutation of a sequence of a finite number of numeric values, as an internal state used for generation of the pseudo-random number sequence, executes a predetermined leftward or rightward rotate shift, depending on a number smaller than an internal state number, based on the result of linear or non-linear, or combination of linear and non-linear using one or more numeric values of the internal state and sets at least one temporary variable used for generation of the pseudo-random number sequence to be a temporary variable having as a value a result of the execution of the predetermined leftward or rightward rotate shift, and generates the pseudo-random number by a predetermined prescribed operation on one or a plurality of numeric values of the internal state a
    Type: Application
    Filed: July 11, 2007
    Publication date: December 31, 2009
    Inventors: Yukiyasu Tsunoo, Teruo Saito, Hiroyasu Kubo, Tomoyasu Suzaki