Patents by Inventor Noboru Yamagata

Noboru Yamagata 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).

  • Thiocarbonyl compound and process for producing polymer using same and that polymer
    Patent number: 8796386
    Abstract: A thiocarbonyl compound represented by the following formula (a) is useful as a RAFT agent. By using this, a process for producing a polymer having a excellent reactivity or monomer conversion rate and its polymer are provided.
    Type: Grant
    Filed: April 13, 2010
    Date of Patent: August 5, 2014
    Assignee: Nippon Carbide Industries Co., Ltd.
    Inventors: Naoki Musashi, Atsushi Shibata, Noboru Yamagata
  • THIOCARBONYL COMPOUND AND PROCESS FOR PRODUCING POLYMER USING SAME AND THAT POLYMER
    Publication number: 20120108757
    Abstract: A thiocarbonyl compound represented by the following formula (a) is useful as a RAFT agent. By using this, a process for producing a polymer having a excellent reactivity or monomer conversion rate and its polymer are provided.
    Type: Application
    Filed: April 13, 2010
    Publication date: May 3, 2012
    Applicant: Nippon Carbide Industries Co., Inc.
    Inventors: Naoki Musashi, Atsushi Shibata, Noboru Yamagata
  • POLYFUNCTIONAL VINYL ETHER AND RESIN COMPOSITION CONTAINING SAME
    Publication number: 20110065852
    Abstract: The polyfunctional vinyl ether expressed by the following formula (I) in the present invention is low in skin irritability, low in odor, excellent in dissolving capability for a polymerization initiator and resistant to the effects of oxygen at the time of curing. Further, the resin composition including the polyfunctional vinyl ether of the present invention (I) dissolves a polymerization initiator well and is excellent in curability, so can be used in many fields such as inks, paints, adhesives, resists: wherein l, m and n in the above formula (I) are integers satisfying l+m+n>3.
    Type: Application
    Filed: June 15, 2009
    Publication date: March 17, 2011
    Applicant: Nippon Carbide Industries Co., Inc.
    Inventors: Hiroaki Takamatsu, Kyoko Yamamoto, Noboru Yamagata
  • Ceramic package and chip resistor, and methods for production of the same
    Patent number: 7098532
    Abstract: A ceramic package and a chip resistor obtained by forming, on a plastic ceramic green sheet comprising 100 parts by weight of a ceramic powder mainly composed of borosilicate glass, into which 10 to 30 parts by weight of an acrylic copolymer obtained by polymerizing 100 parts by weight of a (meth)acrylic acid ester and 1 to 10 parts by weight of a monomer having a functional group of a hydroxyl group, acid amide group, or amino group and having a Tg in the range of ?30° C. to +10° C. is compounded, a conductor layer using a plastic conductive paste obtained by compounding, into 100 parts by weight of a conductive powder, 5 to 20 parts a mixture of an acrylic copolymer having a Tg of not more than ?30° C. and an ethylcellulose-based binder, press forming the resultant single layer of ceramic green sheet, and calcining the resultant ceramic green sheet having the integrally formed bottom, opening and opening circumferential edge and a method for producing the same.
    Type: Grant
    Filed: November 19, 2003
    Date of Patent: August 29, 2006
    Assignee: Nippon Carbide Kogyo Kabushiki Kaisha
    Inventors: Junya Naito, Fumio Ishita, Atsushi Shibata, Noboru Yamagata
  • Ceramic package and chip resistor, and method for manufacture thereof
    Publication number: 20050082648
    Abstract: A ceramic package and a chip resistor obtained by forming, on a plastic ceramic green sheet comprising 100 parts by weight of a ceramic powder mainly composed of borosilicate glass, into which 10 to 30 parts by weight of an acrylic copolymer obtained by polymerizing 100 parts by weight of a (meth)acrylic acid ester and 1 to 10 parts by weight of a monomer having a functional group of a hydroxyl group, acid amide group, or amino group and having a Tg in the range of ?30° C. to +10° C. is compounded, a conductor layer using a plastic conductive paste obtained by compounding, into 100 parts by weight of a conductive powder, 5 to 20 parts a mixture of an acrylic copolymer having a Tg of not more than ?30° C. and an ethylcellulose-based binder, press forming the resultant single layer of ceramic green sheet, and calcining the resultant ceramic green sheet having the integrally formed bottom, opening and opening circumferential edge and a method for producing the same.
    Type: Application
    Filed: November 19, 2003
    Publication date: April 21, 2005
    Inventors: Junya Naito, Fumio Ishita, Atsushi Shibata, Noboru Yamagata