Patents by Inventor Yuki Okumura

Yuki Okumura 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: 20170088734
    Abstract: A water-based ink for ink-jet recording includes: a pigment; water; a pigment dispersing resin including an ethylene oxide chain; and at least one of an anionic surfactant including an ethylene oxide group and a nonionic surfactant including an ethylene oxide group.
    Type: Application
    Filed: September 2, 2016
    Publication date: March 30, 2017
    Inventors: Yuki Okumura, Mitsunori Maeda, Hiroyuki Tanaka
  • Patent number: 9587128
    Abstract: A water-based ink for ink jet recording contains a colorant containing a dye; water; an anionic zirconium complex ion; and a surfactant represented by the formula (1) in the formula (1): R1 is an alkyl group having 12 to 18 carbon atoms or an R4—CO—NH group (R4 is an alkyl group having 12 carbon atoms); each of R2 and R3 is a methyl group or a hydroxyethyl group; and R2 and R3 may be identical to or different from each other. Chromaticness of a recorded matter is improved without any increase in dye concentration.
    Type: Grant
    Filed: March 12, 2015
    Date of Patent: March 7, 2017
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Yuki Okumura
  • Publication number: 20160289470
    Abstract: There is provided a water-based ink for ink-jet recording containing: a pigment; a surfactant; and water, wherein dynamic surface tension of the water-based ink measured under a condition of temperature of 25 degrees Celsius and lifetime of 10 ms is not less than 35 mN/m; and dynamic surface tension of the water-based ink measured under a condition of temperature of 25 degrees Celsius and lifetime of 50 ms is not more than 34.5 mN/m.
    Type: Application
    Filed: September 28, 2015
    Publication date: October 6, 2016
    Inventors: Yuki Okumura, Mitsunori Maeda
  • Publication number: 20160280944
    Abstract: A water-based ink for ink-jet recording includes: a pigment; water; polyoxypropylene methyl glucoside; and a compound represented by the formula (1): in the formula (1), R is a straight or branched chain alkyl group having 2 to 10 carbon atoms.
    Type: Application
    Filed: March 23, 2016
    Publication date: September 29, 2016
    Inventor: Yuki Okumura
  • Patent number: 9385496
    Abstract: A glow plug having a main body bracket, a heater, a center shaft, an insulator, an O-ring that is provided between the front end surface of the insulator and the main body bracket, and a pin terminal that is fitted to the rear end portion of the center shaft and used for supplying electricity from the outside. The pin terminal includes a small-diameter portion, a flange, and a large-diameter portion where an engagement portion and a fitting recess are formed. The large-diameter portion includes a crimp formation region, which is formed so as to have the even outer diameter and be capable of being crimped, in a range from the front end thereof to the front end of the engagement portion. A part of the crimping target portion forms a crimping portion that fixes the rear end portion of the center shaft by crimping.
    Type: Grant
    Filed: August 17, 2011
    Date of Patent: July 5, 2016
    Assignee: NGK SPARK PLUG CO., LTD.
    Inventor: Yuki Okumura
  • Patent number: 9236700
    Abstract: A method of producing a glow plug, wherein a pin terminal is produced by applying a plastic working to a workpiece made of a conductive metal. The production method has: a first step of obtaining a first workpiece; a second step of setting the first workpiece to a second workpiece; a third step of setting the second workpiece to a third workpiece; and a fourth step of setting the third workpiece to a fourth workpiece.
    Type: Grant
    Filed: August 17, 2011
    Date of Patent: January 12, 2016
    Assignee: NGK SPARK PLUG CO., LTD.
    Inventor: Yuki Okumura
  • Patent number: 9211350
    Abstract: A compound represented by the following formula (1), or a salt thereof: wherein R1 is a radioactive halogen substituent, 0 to 2 of A1, A2, A3 and A4 represent N, and the rest represent —(CH)— is effective as a diagnostic imaging probe targeting amyloid. A diagnostic agent for Alzheimer's disease contains a compound represented by the above formula (1) or a salt thereof. After administration to a patient, the compound and the diagnostic agent for Alzheimer's disease transfer into the patient's brain, and indicate good accumulation on amyloid deposited in the brain.
    Type: Grant
    Filed: May 29, 2012
    Date of Patent: December 15, 2015
    Assignee: NIHON MEDI-PHYSICS CO., LTD.
    Inventors: Yuki Okumura, Yoshifumi Maya, Yoshinari Shoyama, Takako Onishi
  • Patent number: 9149546
    Abstract: A compound that is effective as a diagnostic imaging probe that targets amyloid including is represented by the following formula (1), or salt thereof: wherein R1 is a radioactive halogen substituent, A1 and A2 independently represent CH or N. A diagnostic agent for Alzheimer's disease includes the compound represented by the above formula or a salt thereof. The above compound and the above diagnostic agent for Alzheimer's disease transfer into brain after administration, and indicate good accumulation on amyloid deposited in the brain.
    Type: Grant
    Filed: May 18, 2012
    Date of Patent: October 6, 2015
    Assignee: NIHON MEDI-PHYSICS CO., LTD.
    Inventors: Yuki Okumura, Yoshifumi Maya, Yoshinari Shoyama, Takako Onishi
  • Publication number: 20150275005
    Abstract: A water-based ink for ink jet recording contains a colorant containing a dye; water; an anionic zirconium complex ion; and a surfactant represented by the formula (1) in the formula (1): R1 is an alkyl group having 12 to 18 carbon atoms or an R4—CO—NH group (R4 is an alkyl group having 12 carbon atoms); each of R2 and R3 is a methyl group or a hydroxyethyl group; and R2 and R3 may be identical to or different from each other. Chromaticness of a recorded matter is improved without any increase in dye concentration.
    Type: Application
    Filed: March 12, 2015
    Publication date: October 1, 2015
    Inventor: Yuki Okumura
  • Patent number: 9107964
    Abstract: The present invention is a compound represented by the following formula (1) or a salt thereof. In the formula (1), R1 denotes a hydrogen atom, a methyl group, or a hydroxymethyl group, and n is an integer of 1 or 2.
    Type: Grant
    Filed: September 18, 2012
    Date of Patent: August 18, 2015
    Assignees: NIHON MEDI-PHYSICS CO., LTD., NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY
    Inventors: Norihito Nakata, Yuki Okumura, Masato Kiriu, Eriko Nagata, Hiroki Matsumoto, Yuji Kuge, Songji Zhao, Ken-Ichi Nishijima
  • Publication number: 20140364620
    Abstract: The present invention is a compound represented by the following formula (1) or a salt thereof. In the formula (1), R1 denotes a hydrogen atom, a methyl group, or a hydroxymethyl group, and n is an integer of 1 or 2.
    Type: Application
    Filed: September 18, 2012
    Publication date: December 11, 2014
    Applicant: NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY
    Inventors: Norihito Nakata, Yuki Okumura, Masato Kiriu, Eriko Nagata, Hiroki Matsumoto, Yuji Kuge, Songji Zhao, Ken-Ichi Nishijima
  • Publication number: 20140292959
    Abstract: There is provided a water-based ink for ink-jet recording, including: a self-dispersible pigment; water; at least one compound A selected from the group consisting of a compound represented by a general formula (A1), a compound represented by a chemical formula (A2), and a compound represented by a general formula (A3); and at least one compound B selected from the group consisting of a compound represented by a general formula (B1), a compound represented by a chemical formula (B2), and a compound represented by a general formula (B3).
    Type: Application
    Filed: March 21, 2014
    Publication date: October 2, 2014
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Yuki Okumura, Hideji Fukaya
  • Publication number: 20140228569
    Abstract: A compound that is effective as a diagnostic imaging probe that targets amyloid including is represented by the following formula (1), or salt thereof: wherein R1 is a radioactive halogen substituent, A1 and A2 independently represent CH or N. A diagnostic agent for Alzheimer's disease includes the compound represented by the above formula or a salt thereof. The above compound and the above diagnostic agent for Alzheimer's disease transfer into brain after administration, and indicate good accumulation on amyloid deposited in the brain.
    Type: Application
    Filed: May 18, 2012
    Publication date: August 14, 2014
    Inventors: Yuki Okumura, Yoshifumi Maya, Yoshinari Shoyama, Takako Onishi
  • Publication number: 20140121377
    Abstract: A compound represented by the following formula (1), or a salt thereof: wherein R1 is a radioactive halogen substituent, 0 to 2 of A1, A2, A3 and A4 represent N, and the rest represent —(CH)— is effective as a diagnostic imaging probe targeting amyloid. A diagnostic agent for Alzheimer's disease contains a compound represented by the above formula (1) or a salt thereof. After administration to a patient, the compound and the diagnostic agent for Alzheimer's disease transfer into the patient's brain, and indicate good accumulation on amyloid deposited in the brain.
    Type: Application
    Filed: May 29, 2012
    Publication date: May 1, 2014
    Inventors: Yuki Okumura, Yoshifumi Maya, Yoshinari Shoyama, Takako Onishi
  • Patent number: 8506930
    Abstract: The present invention provides a compound which has affinity with amyloid, shows sufficiently rapid clearance from normal tissues and is suppressed in toxicity such as mutagencity. Provided is a compound represented by the following formula (1) or a salt thereof: wherein A1, A2, A3 and A4 independently represents a carbon or nitrogen; R1 is a halogen substituent; R2 is a halogen substituent; and m is an integer of 0 to 2, provided that at least one of R1 and R2 is a radioactive halogen substituent, at least one of A1, A2, A3 and A4 represents a carbon, and R1 binds to a carbon represented by A1, A2, A3 or A4 as well as a low-toxic diagnostic agent comprising a compound represented by the preceding formula or a salt thereof.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: August 13, 2013
    Assignee: Nihon Medi-Physics Co., Ltd.
    Inventors: Shigeyuki Tanifuji, Daisaku Nakamura, Shinya Takasaki, Yuki Okumura
  • Publication number: 20130199037
    Abstract: A method of producing a glow plug, wherein a pin terminal is produced by applying a plastic working to a workpiece made of a conductive metal. The production method has: a first step of obtaining a first workpiece; a second step of setting the first workpiece to a second workpiece; a third step of setting the second workpiece to a third workpiece; and a fourth step of setting the third workpiece to a fourth workpiece.
    Type: Application
    Filed: August 17, 2011
    Publication date: August 8, 2013
    Applicant: NGK SPARK PLUG CO., LTD.
    Inventor: Yuki Okumura
  • Publication number: 20130180975
    Abstract: A glow plug having a main body bracket, a heater, a center shaft, an insulator, an O-ring that is provided between the front end surface of the insulator and the main body bracket, and a pin terminal that is fitted to the rear end portion of the center shaft and used for supplying electricity from the outside. The pin terminal includes a small-diameter portion, a flange, and a large-diameter portion where an engagement portion and a fitting recess are formed. The large-diameter portion includes a crimp formation region, which is formed so as to have the even outer diameter and be capable of being crimped, in a range from the front end thereof to the front end of the engagement portion. A part of the crimping target portion forms a crimping portion that fixes the rear end portion of the center shaft by crimping.
    Type: Application
    Filed: August 17, 2011
    Publication date: July 18, 2013
    Inventor: Yuki Okumura
  • Patent number: 8399672
    Abstract: A compound effective as a probe targeting amyloid for image diagnosis and a reagent comprising the compound for detecting amyloid deposited on a biological tissue are provided. Provided are a compound represented by the following formula (1): wherein R1, R2 and R3 independently represent a group selected from the group consisting of a hydrogen, hydroxyl group, alkyl substituent with 1 to 4 carbon atoms, alkoxy substituent having alkyl chain with 1 to 4 carbon atoms and halogen substituent, excluding the case where two or more of the substituents R1, R2 and R3 are hydrogen, R4 is a group selected from the group consisting of a hydrogen, hydroxyl group, alkoxy substituent having alkyl chain with 1 to 4 carbon atoms and halogen substituent, and m is an integer of 1 to 4, provided that at least one of R1, R2, R3 and R4 represents a radioactive halogen substituent, and a reagent comprising the same.
    Type: Grant
    Filed: October 24, 2008
    Date of Patent: March 19, 2013
    Assignee: Nihon Medi-Physics Co., Ltd.
    Inventors: Shigeyuki Tanifuji, Daisaku Nakamura, Shinya Takasaki, Yuki Okumura
  • Patent number: 8303935
    Abstract: The present invention provides a compound which has affinity with amyloid, shows sufficiently rapid clearance from normal tissues and is suppressed in toxicity such as mutagencity. Provided is a compound represented by the following formula (1) or a salt thereof: wherein A1, A2, A3 and A4 independently represents a carbon or nitrogen; R1 is a halogen substituent; R2 is a halogen substituent; and m is an integer of 0 to 2, provided that at least one of R1 and R2 is a radioactive halogen substituent, at least one of A1, A2, A3 and A4 represents a carbon, and R1 binds to a carbon represented by A1, A2, A3 or A4 as well as a low-toxic diagnostic agent comprising a compound represented by the preceding formula or a salt thereof.
    Type: Grant
    Filed: May 15, 2007
    Date of Patent: November 6, 2012
    Assignee: Nihon Medi-Physics Co., Ltd.
    Inventors: Shigeyuki Tanifuji, Daisaku Nakamura, Shinya Takasaki, Yuki Okumura
  • Publication number: 20120271053
    Abstract: The present invention provides a compound which has affinity with amyloid, shows sufficiently rapid clearance from normal tissues and is suppressed in toxicity such as mutagencity. Provided is a compound represented by the following formula (1) or a salt thereof: wherein A1, A2, A3 and A4 independently represents a carbon or nitrogen; R1 is a halogen substituent; R2 is a halogen substituent; and m is an integer of 0 to 2, provided that at least one of R1 and R2 is a radioactive halogen substituent, at least one of A1, A2, A3 and A4 represents a carbon, and R1 binds to a carbon represented by A1, A2, A3 or A4 as well as a low-toxic diagnostic agent comprising a compound represented by the preceding formula or a salt thereof.
    Type: Application
    Filed: June 29, 2012
    Publication date: October 25, 2012
    Applicant: NIHON MEDI-PHYSICS CO., LTD.
    Inventors: Shigeyuki TANIFUJI, Daisaku Nakamura, Shinya Takasaki, Yuki Okumura