Patents by Inventor Ken Sakakibara

Ken Sakakibara 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: 11912952
    Abstract: A material comprising: a support 10; and a brush layer 20 containing a brush-like polymer chain assemblage 21 formed of a plurality of polymer chains and a swelling liquid 22, in which a brush layer 20 is swollen with the swelling liquid 22, the brush layer 20 retaining on the surface a lubricating liquid 30, and the swelling liquid 22 contained in the brush layer 20 and the lubricating liquid 30 being phase-separated to form a liquid-liquid phase separation interface 40 in between and a sliding system using the material.
    Type: Grant
    Filed: December 1, 2020
    Date of Patent: February 27, 2024
    Assignees: KYOTO UNIVERSITY, NATIONAL INSTITUTE OF TECHNOLOGY, NATIONAL UNIVERSITY CORPORATION YOKOHAMA NATIONAL UNIVERSITY
    Inventors: Yoshinobu Tsujii, Keita Sakakibara, Takaya Sato, Hiroyuki Arafune, Ken Nakano, Mayu Miyazaki
  • Publication number: 20220017687
    Abstract: A method of producing a polymer compound which is capable of improving yield while lowering the dispersity of the molecular weight is described.
    Type: Application
    Filed: September 4, 2019
    Publication date: January 20, 2022
    Inventors: Ken SAKAKIBARA, Mio SHIRATORI
  • Patent number: 10654967
    Abstract: A polymer compound having a constitutional unit represented by formula (1A) or formula (1B) and a constitutional unit represented by formula (2A) or formula (2B) is provided, wherein each of XM and XN is a crosslinkable group; and RAm, RBm, Ar1m to Ar5m, LM, ArM, m1 to m6, RAn, RBn, Ar1n to Ar5n, ArLn, LN, ArN, n1 to n6, and Ln are as defined in the specification. The polymer compound is excellent in crosslinkability and hole transportability.
    Type: Grant
    Filed: September 14, 2016
    Date of Patent: May 19, 2020
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Mio Shiratori, Ken Sakakibara, Daisuke Fukushima, Tomoyasu Yoshida
  • Patent number: 10336860
    Abstract: A polymer compound having an excellent crosslinking ability is provided. The polymer compound has at least one terminal constitutional unit represented by the formula (1) and a constitutional unit represented by the formula (2): In the constitutional unit represented by formula (1), mT represents an integer of 0 to 5, nT represents an integer of 1 to 4, cT represents an integer of 0 to 1, QT represents a crosslinkable group, KT represents an alkylene group or the like and ArT represents an aromatic hydrocarbon group or the like. In the constitutional unit represented by formula (2), mA represents an integer of 0 to 5, n represents an integer of 1 to 4, Ar1 represents an aromatic hydrocarbon group or the like, KA represents an alkylene group or the like and Q1 represents a crosslinkable group.
    Type: Grant
    Filed: September 17, 2015
    Date of Patent: July 2, 2019
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Ken Sakakibara, Mio Shiratori
  • Publication number: 20180230264
    Abstract: A polymer compound having a constitutional unit represented by formula (1A) or formula (1B) and a constitutional unit represented by formula (2A) or formula (2B) is provided, wherein each of XM and XN is a crosslinkable group; and RAm, RBm, Ar1m to Ar5m, LM, ArM, m1 to m6, RAn, RBn, Ar1n to Ar5n, ArLn, LN, ArN, n1 to n6, and Ln are as defined in the specification. The polymer compound is excellent in crosslinkability and hole transportability.
    Type: Application
    Filed: September 14, 2016
    Publication date: August 16, 2018
    Inventors: Mio SHIRATORI, Ken SAKAKIBARA, Daisuke FUKUSHIMA, Tomoyasu YOSHIDA
  • Publication number: 20170283546
    Abstract: A polymer compound having an excellent crosslinking ability is provided. The polymer compound has at least one terminal constitutional unit represented by the formula (1) and a constitutional unit represented by the formula (2): In the constitutional unit represented by formula (1), mT represents an integer of 0 to 5, nT represents an integer of 1 to 4, cT represents an integer of 0 to 1, QT represents a crosslinkable group, KT represents an alkylene group or the like and ArT represents an aromatic hydrocarbon group or the like. In the constitutional unit represented by formula (2), mA represents an integer of 0 to 5, n represents an integer of 1 to 4, Ar1 represents an aromatic hydrocarbon group or the like, KA represents an alkylene group or the like and Q1 represents a crosslinkable group.
    Type: Application
    Filed: September 17, 2015
    Publication date: October 5, 2017
    Applicant: Sumitomo Chemical Company, Limited
    Inventors: Ken SAKAKIBARA, Mio SHIRATORI
  • Patent number: 9758688
    Abstract: A composition is provided for forming a conductive film. The composition includes a metal compound, a reducing agent, an ionic compound and/or a polar compound, and a compound having at least one atom selected from a nitrogen atom, a sulfur atom and a phosphorus atom. The composition may be an ink composition for coating on an electronic device.
    Type: Grant
    Filed: September 20, 2013
    Date of Patent: September 12, 2017
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Takayuki Iijima, Ken Sakakibara, Hideyuki Higashimura
  • Patent number: 9601696
    Abstract: The present invention is to provide a composition that can provide an electroluminescent device emitting light with high brightness. The present invention provides following: a composition including a polymer compound comprising one or more structural unit(s) selected from the group consisting of a structural unit represented by Formula (1), a structural unit represented by Formula (3), a structural unit represented by Formula (5), a structural unit represented by Formula (16), a structural unit represented by Formula (18), a structural unit represented by Formula (20), and a structural unit represented by Formula (22) and an ionic compound represented by Formula (23); an organic film and an electric device comprising the composition.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: March 21, 2017
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Masanobu Tanaka, Rui Ishikawa, Takayuki Iijima, Kensaku Horie, Ken Sakakibara
  • Patent number: 9520569
    Abstract: The present invention provides a compound that has high solubility in a highly polar solvent and is usefully usable for an application method using a highly polar solvent, the compound that can manufacture an electroluminescent device having high light-emitting efficiency. Specifically, the present invention provides a compound containing a structure represented by Formula (1): wherein: Ar1, Ar2, Ar3, and Ar4 each independently represent a divalent aromatic group optionally having substituent(s); Ar5 represents a monovalent aromatic group optionally having substituent(s); p and q each independently represent an integer of 0 or more; and R1 represents a given monovalent group.
    Type: Grant
    Filed: October 11, 2012
    Date of Patent: December 13, 2016
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Ken Sakakibara, Masanobu Tanaka, Rui Ishikawa, Hideyuki Higashimura
  • Patent number: 9455408
    Abstract: Provided is a layered structure having a first electrode, a second electrode, a light emitting layer or a charge separation layer located between the first electrode and the second electrode, and a layer located between the light emitting layer or the charge separation layer and the first electrode and containing a polymer having a repeating unit containing one or more ionic groups selected from two specific groups and one or more specific polar groups. Also provided is a polymer having, as the repeating unit containing one or more ionic groups selected from two specific groups and one or more specific polar groups, one or more repeating units selected from four specific repeating units containing an aromatic group. The layered structure of the present invention provides an electroluminescent device capable of emitting light at a high luminance and a photoelectric conversion device having a high photoelectric conversion efficiency.
    Type: Grant
    Filed: September 28, 2010
    Date of Patent: September 27, 2016
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Masanobu Tanaka, Kenta Tanaka, Ken Sakakibara, Hideyuki Higashimura, Rui Ishikawa
  • Patent number: 9306170
    Abstract: An electronic device that serves as a high-brightness electroluminescent device includes a layer containing a polymer compound having one or more structural units selected from a structural unit represented by formula (1) and a structural unit represented by formula (14) as a charge injection layer and/or a charge transport layer: wherein Ar1 and Ar2 represent certain fused polycyclic aromatic groups; R1, R2, R6 and R7 represent certain organic groups; m1, m2 and m6 represent an integer of 1 or more; m7 represents an integer of 0 or more; and when R1, R2, R6 and R7 are each plurally present, they each may be the same or different.
    Type: Grant
    Filed: March 27, 2012
    Date of Patent: April 5, 2016
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Masanobu Tanaka, Rui Ishikawa, Norifumi Kobayashi, Ken Sakakibara, Hideyuki Higashimura
  • Patent number: 9306169
    Abstract: An electronic device that serves as a high-brightness electroluminescent device includes a layer containing a polymer compound having one or more structural units selected from a structural unit represented by formula (1) and a structural unit represented by formula (7) as a charge injection layer and/or a charge transport layer: Wherein R1, R2, R6 and R7 represent certain groups; m1 and m5 represent an integer of 0 or more; when R2 and R7 are plurally present, they may be the same or different; and a hydrogen atom in formula (1) or (7) may be replaced with a substituent other than the certain groups.
    Type: Grant
    Filed: March 27, 2012
    Date of Patent: April 5, 2016
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Masanobu Tanaka, Rui Ishikawa, Ken Sakakibara, Hideyuki Higashimura
  • Publication number: 20150275015
    Abstract: A composition is provided for forming a conductive film. The composition includes a metal compound, a reducing agent, an ionic compound and/or a polar compound, and a compound having at least one atom selected from a nitrogen atom, a sulfur atom and a phosphorus atom. The composition may be an ink composition for coating on an electronic device.
    Type: Application
    Filed: September 20, 2013
    Publication date: October 1, 2015
    Inventors: Takayuki Iijima, Ken Sakakibara, Hideyuki Higashimura
  • Publication number: 20140231717
    Abstract: The present invention provides a compound that has high solubility in a highly polar solvent and is usefully usable for an application method using a highly polar solvent, the compound that can manufacture an electroluminescent device having high light-emitting efficiency. Specifically, the present invention provides a compound containing a structure represented by Formula (1): wherein: Ar1, Ar2, Ar3, and Ar4 each independently represent a divalent aromatic group optionally having substituent(s); Ar5 represents a monovalent aromatic group optionally having substituent(s); p and q each independently represent an integer of 0 or more; and R1 represents a given monovalent group.
    Type: Application
    Filed: October 11, 2012
    Publication date: August 21, 2014
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Ken Sakakibara, Masanobu Tanaka, Rui Ishikawa, Hideyuki Higashimura
  • Patent number: 8719364
    Abstract: A network management system transmits/receives an email via a network; saves, in a database, first history information including the address of at least one of the destination and the source of the email written in the email; receives transmission information in which access information for accessing a web page via a network is written; saves, in the database, second history information including the access information written in the transmission information; inputs authentication information for identifying a user; and selectively displays the first history information saved in the first saving unit and the second history information saved in the second saving unit in a predetermined display format on a display unit by switching between the first history information and the second history information based on an instruction inputted by a user when the inputted authentication information is identical to previously registered information.
    Type: Grant
    Filed: March 27, 2008
    Date of Patent: May 6, 2014
    Assignee: Canon Denshi Kabushiki Kaisha
    Inventors: Shinsaku Kita, Ken Sakakibara
  • Publication number: 20140039131
    Abstract: An electronic device that serves as a high-brightness electroluminescent device includes a layer containing a polymer compound having one or more structural units selected from a structural unit represented by formula (1) and a structural unit represented by formula (14) as a charge injection layer and/or a charge transport layer: wherein Ar1 and Ar2 represent certain fused polycyclic aromatic groups; R1, R2, R6 and R7 represent certain organic groups; m1, m2 and m6 represent an integer of 1 or more; m7 represents an integer of 0 or more; and when R1, R2, R6 and R7 are each plurally present, they each may be the same or different.
    Type: Application
    Filed: March 27, 2012
    Publication date: February 6, 2014
    Applicant: Sumitomo Chemical Company, Limited
    Inventors: Masanobu Tanaka, Rui Ishikawa, Norifumi Kobayashi, Ken Sakakibara, Hideyuki Higashimura
  • Publication number: 20140024785
    Abstract: An electronic device that serves as a high-brightness electroluminescent device includes a layer containing a polymer compound having one or more structural units selected from a structural unit represented by formula (1) and a structural unit represented by formula (7) as a charge injection layer and/or a charge transport layer: Wherein R1, R2, R6 and R7 represent certain groups; m1 and m5 represent an integer of 0 or more; when R2 and R7 are plurally present, they may be the same or different; and a hydrogen atom in formula (1) or (7) may be replaced with a substituent other than the certain groups.
    Type: Application
    Filed: March 27, 2012
    Publication date: January 23, 2014
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Masanobu Tanaka, Rui Ishikawa, Ken Sakakibara, Hideyuki Higashimura
  • Publication number: 20140008637
    Abstract: The present invention is to provide a composition that can provide an electroluminescent device emitting light with high brightness. The present invention provides following: a composition including a polymer compound comprising one or more structural unit(s) selected from the group consisting of a structural unit represented by Formula (1), a structural unit represented by Formula (3), a structural unit represented by Formula (5), a structural unit represented by Formula (16), a structural unit represented by Formula (18), a structural unit represented by Formula (20), and a structural unit represented by Formula (22) and an ionic compound represented by Formula (23); an organic film and an electric device comprising the composition.
    Type: Application
    Filed: December 22, 2011
    Publication date: January 9, 2014
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Masanobu Tanaka, Rui Ishikawa, Takayuki Iijima, Kensaku Horie, Ken Sakakibara
  • Publication number: 20120181529
    Abstract: Provided is a layered structure having a first electrode, a second electrode, a light emitting layer or a charge separation layer located between the first electrode and the second electrode, and a layer located between the light emitting layer or the charge separation layer and the first electrode and containing a polymer having a repeating unit containing one or more ionic groups selected from two specific groups and one or more specific polar groups. Also provided is a polymer having, as the repeating unit containing one or more ionic groups selected from two specific groups and one or more specific polar groups, one or more repeating units selected from four specific repeating units containing an aromatic group. The layered structure of the present invention provides an electroluminescent device capable of emitting light at a high luminance and a photoelectric conversion device having a high photoelectric conversion efficiency.
    Type: Application
    Filed: September 28, 2010
    Publication date: July 19, 2012
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Masanobu Tanaka, Kenta Tanaka, Ken Sakakibara, Hideyuki Higashimura, Rui Ishikawa
  • Patent number: 7899902
    Abstract: The present invention provides a distributed system control method information processing apparatus that enables a user to ascertain easily and in real time the environment around such user, that is, the status of other users and of peripheral devices, during use of the distributed system, in particular enabling the user to obtain easily information on peripheral devices the user is permitted to use. In a distributed system in which a plurality of user terminals and peripheral devices are dispersed, information indicating the current status of the users of the user terminals and information indicating the current status of the peripheral devices is stored, updated according to changes in status, and the current status of users of other user terminals and the current status of the peripheral devices selectively displayed on the same display screen at each of the plurality of user terminals.
    Type: Grant
    Filed: October 15, 2004
    Date of Patent: March 1, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Naoko Hyotani, Ken Sakakibara, Yoshihisa Tadokoro, Takashi Miyasaki