Patents by Inventor Kensuke Kubo

Kensuke 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: 10139743
    Abstract: A toner for developing electrostatic images includes a binder, a colorant, iron, silicon, and sulfur. The colorant includes a phosphor and a non-fluorescent colorant. The phosphor includes either one or both of a nitride and an oxynitride each including an alkaline-earth metal, silicon, and an activator element. A volume average particle diameter of the phosphor is greater than or equal to about 50 nm and less than or equal to about 400 nm. An internal quantum efficiency of the phosphor at an excitation wavelength of 450 nm is greater than or equal to about 60%.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: November 27, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Takuya Kitabatake, Fusaki Fujibayashi, Hiroko Endo, Masahide Yamada, Kensuke Kubo
  • Patent number: 10004768
    Abstract: Provided is a method for treatment of atopic dermatitis and infectious dermatitis with biological spa therapy. The method seeks to cure or alleviate symptoms of atopic dermatitis by bathing in a bathwater containing, as dominant bacteria, not less than 105 Bacillus bacteria per 1 mL of the bathwater.
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: June 26, 2018
    Inventor: Kensuke Kubo
  • Publication number: 20170205723
    Abstract: A toner for developing electrostatic images includes a binder, a colorant, iron, silicon, and sulfur. The colorant includes a phosphor and a non-fluorescent colorant. The phosphor includes either one or both of a nitride and an oxynitride each including an alkaline-earth metal, silicon, and an activator element. A volume average particle diameter of the phosphor is greater than or equal to about 50 nm and less than or equal to about 400 nm. An internal quantum efficiency of the phosphor at an excitation wavelength of 450 nm is greater than or equal to about 60%.
    Type: Application
    Filed: January 18, 2017
    Publication date: July 20, 2017
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Takuya KITABATAKE, Fusaki FUJIBAYASHI, Hiroko ENDO, Masahide YAMADA, Kensuke KUBO
  • Patent number: 9544155
    Abstract: A power supply controller includes a first port, a second port, and a controller. The first port is connected to a power supply device. The second port is connected to a first relay node device via a wired path. The controller performs control to supply power received from the power supply device from the second port to the first relay node device. The controller performs control to generate a power-on instruction frame for instructing the first relay node device started by receiving power supply to start power supply from a port included in the first relay node device to a second relay node device connected to the first relay node device via a wired path. The controller performs control to transmit the generated power-on instruction frame from the second port.
    Type: Grant
    Filed: September 2, 2014
    Date of Patent: January 10, 2017
    Assignee: FUJITSU LIMITED
    Inventors: Yoshinobu Shimokawa, Toshitsugu Kobayashi, Yoshiyuki Jufuku, Kensuke Kubo, Masatsugu Kawamoto
  • Patent number: 9420517
    Abstract: A network includes node devices each storing a table that manages paths to plural gateway devices for connecting to another network. A node device generates a hello frame for specifying a main gateway device of the node device at a predetermined timing, and transmits the hello frame to adjacent node devices. The node device, upon receiving a hello frame from an adjacent node device operating as a first hop destination of a data frame destined for the main gateway device, determines whether quality of a path to the main gateway device is lowest among paths to the plural gateway devices, based on path quality information included in the hello frame. When the quality of a path to the main gateway device is lowest, the node device changes the main gateway device to a gateway device that is registered in the table and specified by information included in the hello frame.
    Type: Grant
    Filed: November 4, 2014
    Date of Patent: August 16, 2016
    Assignee: FUJITSU LIMITED
    Inventors: Norihito Nishimoto, Kensuke Kubo, Tatsuya Soneda, Yuichi Inao, Taiji Kondo
  • Publication number: 20160089403
    Abstract: Provided is a method for treatment of atopic dermatitis and infectious dermatitis with biological spa therapy. The method seeks to cure or alleviate symptoms of atopic dermatitis by bathing in a bathwater containing, as dominant bacteria, not less than 105 Bacillus bacteria per 1 mL of the bathwater.
    Type: Application
    Filed: September 25, 2014
    Publication date: March 31, 2016
    Inventor: Kensuke Kubo
  • Publication number: 20150131480
    Abstract: A network includes node devices each storing a table that manages paths to plural gateway devices for connecting to another network. A node device generates a hello frame for specifying a main gateway device of the node device at a predetermined timing, and transmits the hello frame to adjacent node devices. The node device, upon receiving a hello frame from an adjacent node device operating as a first hop destination of a data frame destined for the main gateway device, determines whether quality of a path to the main gateway device is lowest among paths to the plural gateway devices, based on path quality information included in the hello frame. When the quality of a path to the main gateway device is lowest, the node device changes the main gateway device to a gateway device that is registered in the table and specified by information included in the hello frame.
    Type: Application
    Filed: November 4, 2014
    Publication date: May 14, 2015
    Applicant: FUJITSU LIMITED
    Inventors: Norihito Nishimoto, Kensuke Kubo, Tatsuya Soneda, Yuichi Inao, Taiji Kondo
  • Publication number: 20140369180
    Abstract: A power supply controller includes a first port, a second port, and a controller. The first port is connected to a power supply device. The second port is connected to a first relay node device via a wired path. The controller performs control to supply power received from the power supply device from the second port to the first relay node device. The controller performs control to generate a power-on instruction frame for instructing the first relay node device started by receiving power supply to start power supply from a port included in the first relay node device to a second relay node device connected to the first relay node device via a wired path. The controller performs control to transmit the generated power-on instruction frame from the second port.
    Type: Application
    Filed: September 2, 2014
    Publication date: December 18, 2014
    Inventors: Yoshinobu Shimokawa, Toshitsugu Kobayashi, YOSHIYUKI JUFUKU, Kensuke Kubo, MASATSUGU KAWAMOTO
  • Patent number: 8187891
    Abstract: The present invention provides a method for detection or determination of vitamin C by luminescence that employs a redox-responsive fluorogenic probe consisting of porphyrin or phthalocyanine with a nitroxide radical(s), or that employs a liposome preparation comprising the said redox-responsive fluorogenic probe. The present method can overcome the problems of prior art methods, and in particular, are applicable for bioimaging to allow elucidation of the behavior of vitamin C in vivo.
    Type: Grant
    Filed: March 17, 2010
    Date of Patent: May 29, 2012
    Assignee: The University of Tokyo
    Inventors: Kazuyuki Ishii, Kensuke Kubo, Kikuo Komori, Yasuyuki Sakai
  • Publication number: 20100239506
    Abstract: The present invention provides a method for detection or determination of vitamin C by luminescence that employs a redox-responsive fluorogenic probe consisting of porphyrin or phthalocyanine with a nitroxide radical(s), or that employs a liposome preparation comprising the said redox-responsive fluorogenic probe. The present method can overcome the problems of prior art methods, and in particular, are applicable for bioimaging to allow elucidation of the behavior of vitamin C in vivo.
    Type: Application
    Filed: March 17, 2010
    Publication date: September 23, 2010
    Applicant: THE UNIVERSITY OF TOKYO
    Inventors: Kazuyuki Ishii, Kensuke Kubo, Kikuo Komori, Yasuyuki Sakai
  • Publication number: 20050190910
    Abstract: A system for receiving inquiry by speech includes a plurality of receiving board apparatus capable of receiving an inquiry by speech from an inquirer, a VoIP gateway apparatus connected via the LAN to a plurality of receiving apparatuses for transmitting/receiving via the LAN to/from the receiving board apparatus a speech packet containing speech data relating to communication between the recipient of the receiving board apparatus which has answered to an inquiry and inquirer, and a speech multiplexing HUB apparatus for receiving speech data input to each receiving board apparatus, time-division multiplexing them, and distributing them in parallel to each receiving board apparatus.
    Type: Application
    Filed: April 27, 2005
    Publication date: September 1, 2005
    Inventors: Hidetada Tanaka, Yasuyuki Sajikawa, Hiroyuki Kadosono, Kensuke Kubo, Akira Hashimoto, Chigusa Miyahara, Kenji Takada
  • Patent number: 6731610
    Abstract: A data communication system includes a plurality of terminal apparatuses #1-#n for periodically transmitting data and retrieving desired data accommodated in at least one time slot in received multiplex data, and a data storage and distribution apparatus for subjecting received data from the plurality of terminal apparatuses to time division multiplexing so as to produce time slots each corresponding to a respective one of the plurality of terminal apparatuses, reproducing resultant multiplex data, and distributing the multiplex data to the plurality of terminal apparatuses.
    Type: Grant
    Filed: March 23, 1998
    Date of Patent: May 4, 2004
    Assignee: Fujitsu Limited
    Inventors: Yasuyuki Sajikawa, Hidetada Tanaka, Hikaru Udou, Kensuke Kubo, Kazuhisa Matsumoto
  • Publication number: 20030053479
    Abstract: A data communication system includes a plurality of terminal apparatuses #1-#n for periodically transmitting data and retrieving desired data accommodated in at least one time slot in received multiplex data, and a data storage and distribution apparatus for subjecting received data from the plurality of terminal apparatuses to time division multiplexing so as to produce time slots each corresponding to a respective one of the plurality of terminal apparatuses, reproducing resultant multiplex data, and distributing the multiplex data to the plurality of terminal apparatuses.
    Type: Application
    Filed: March 23, 1998
    Publication date: March 20, 2003
    Inventors: YASUYUKI SAJIKAWA, HIDETADA TANAKA, HIKARU UDOU, KENSUKE KUBO, KAZUHISA MATSUMOTO