Patents by Inventor Takafumi ASAI

Takafumi ASAI 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: 20200277447
    Abstract: Provided is a resin composition for producing a coating composition excellent in appearance, abrasion resistance, and hardness of a coating film. The resin composition of the present invention includes a compound A having a branched structure which has a terminal hydroxyl group, a polyisocyanate B, and an inorganic particle C, in which the inorganic particle C has a functional group enabling reacting with a hydroxyl group or an isocyanate group on a surface thereof.
    Type: Application
    Filed: May 20, 2020
    Publication date: September 3, 2020
    Applicant: Chiyoda-ku
    Inventors: Riina KANBARA, Takafumi ASAI, Masashi SERIZAWA, Takahiro MUKUDA, Yoshihiro KAMON
  • Publication number: 20190352514
    Abstract: Disclosed herein is an antifouling coating composition containing a resin composition and an antifouling agent, where the resin composition includes a polymer (A) containing at least one monomer-derived structural unit having the structure represented by formula (1), (2) or (3) below, and after the resin composition is stored at 40° C. for 30 days, the decomposition rate of the structure represented by formula (1), (2) or (3) in the polymer (A) is 20% or lower.
    Type: Application
    Filed: August 1, 2019
    Publication date: November 21, 2019
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Sho Katsumata, Kana Taniguchi, Junichi Nakamura, Masatoshi Ura, Yoshihiro Kamon, Takafumi Asai, Ryuichi Ansai
  • Patent number: 10444636
    Abstract: Vacuum ultraviolet rays are emitted to a surface to be processed of a substrate to be processed by a light source. During an emission period in which the vacuum ultraviolet rays are emitted from the light source to the substrate, part of the vacuum ultraviolet rays is received by an illuminometer, and illuminance of the received vacuum ultraviolet rays is measured. A light receiving surface of the illuminometer is located at a constant height that is based on the surface to be processed of the substrate during the emission period of the vacuum ultraviolet rays. An exposure amount of the substrate is calculated based on the illuminance measured by the illuminometer. Emission of the vacuum ultraviolet rays from the light source to the substrate is stopped based on the calculated exposure amount of the substrate.
    Type: Grant
    Filed: February 21, 2018
    Date of Patent: October 15, 2019
    Assignee: SCREEN Holdings Co., Ltd.
    Inventors: Tomohiro Matsuo, Yasuhiro Fukumoto, Takafumi Oki, Masaya Asai, Masahiko Harumoto, Yuji Tanaka, Chisayo Nakayama
  • Patent number: 10401736
    Abstract: An atmosphere in a processing chamber in which a substrate is stored is discharged by a suction device. At a time point at which oxygen concentration in the processing chamber is lowered to predetermined exposure starting concentration, emission of vacuum ultraviolet rays from a light source to the substrate is started. The emission of the vacuum ultraviolet rays to the substrate is stopped at a time point at which the exposure amount of the substrate increases to a predetermined set exposure amount. The exposure starting concentration is defined in advance to be higher than 1% and lower than oxygen concentration in the air, and is defined in advance such that ozone generated from oxygen atoms by the emission of the vacuum ultraviolet rays do not damage the film on the surface to be processed of the substrate.
    Type: Grant
    Filed: February 22, 2018
    Date of Patent: September 3, 2019
    Assignee: SCREEN Holdings Co., Ltd.
    Inventors: Tomohiro Matsuo, Yasuhiro Fukumoto, Takafumi Oki, Masaya Asai, Masahiko Harumoto, Yuji Tanaka, Chisayo Nakayama
  • Patent number: 10301286
    Abstract: To provide a compound which can be used as an MC4 receptor agonist. The present inventors have investigated MC4 receptor agonists, and have found that a piperazine derivative has an action related to the agonists, thereby completing the present invention. That is, the piperazine derivative of the present invention has an MC4 receptor agonistic action, and can be used as an agent for preventing or treating bladder and/or urinary tract diseases, in particular, underactive bladder, hypotonic bladder, acontractile bladder, detrusor underactivity, neurogenic bladder, urethral relaxation failure, detrusor-external urethral sphincter dyssynergia, and voiding dysfunctions in benign prostatic hyperplasia.
    Type: Grant
    Filed: August 2, 2016
    Date of Patent: May 28, 2019
    Assignee: Astellas Pharma Inc.
    Inventors: Takashi Sugane, Takuya Makino, Daisuke Yamashita, Yasuhiro Yonetoku, Daisuke Tanabe, Hisashi Mihara, Norio Asai, Kazuhiko Osoda, Takafumi Shimizu, Hiroyuki Moritomo, Keizo Sugasawa, Kyoichi Maeno, Naomi Hosogai
  • Publication number: 20180201797
    Abstract: First embodiment of a (meth)acrylic copolymer in the present invention includes following: a (meth)acrylic copolymer having at least one kind of constitutional unit selected from the group consisting of a constitutional unit (A1) having at least one kind of structure (I) selected from the group consisting of structures represented by the following formula (1), formula (2), or formula (3) and a constitutional unit (A2) having a triorganosilyloxycarbonyl group and a constitutional unit (B) derived from a macromonomer (b): (where, X represents —O—, —S—, or —NR14—, R14 represents a hydrogen atom or an alkyl group, R1 and R2 each represent a hydrogen atom or an alkyl group having from 1 to 10 carbon atoms, R3 and R5 each represent an alkyl group having from 1 to 20 carbon atoms, a cycloalkyl group, or an aryl group, and R4 and R6 each represent an alkylene group having from 1 to 10 carbon atoms).
    Type: Application
    Filed: March 15, 2018
    Publication date: July 19, 2018
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Kana TANIGUCHI, Sho KATSUMATA, Junichi NAKAMURA, Masatoshi URA, Yoshihiro KAMON, Takafumi ASAI
  • Publication number: 20180051179
    Abstract: A resin composition, formed to have a polymer (A) containing at least one monomer-derived structural unit having the structure represented by formula (1), (2) or (3) below, and after the resin composition is stored at 40° C. for 30 days, the decomposition rate of the structure represented by formula (1), (2) or (3) in the polymer (A) is 20% or lower.
    Type: Application
    Filed: April 15, 2016
    Publication date: February 22, 2018
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Sho KATSUMATA, Kana TANIGUCHI, Junichi NAKAMURA, Masatoshi URA, Yoshihiro KAMON, Takafumi ASAI, Ryuichi ANSAI
  • Patent number: 9534065
    Abstract: An object of the invention is to provide a molding with suppressed coloring which has good weather resistance and in which the advantageous effect does not decrease with time. The present invention provides a molding material comprising a polymer (A) obtained by polymerizing 0.01 to 35 mol % of monomer (a1) represented by a specified formula (1) and 65 to 99.99 mol % of monomer (a2) whose main component is methylmethacrylate.
    Type: Grant
    Filed: May 30, 2012
    Date of Patent: January 3, 2017
    Assignee: MITSUBISHI RAYON CO., LTD.
    Inventors: Fuminori Nakaya, Tetsuya Noda, Keiichi Sakashita, Hiroyuki Nogami, Takafumi Asai
  • Patent number: 8834937
    Abstract: A bone filling material comprising sintered titanium dioxide and dextrin and a method for reconstructing bone defects which comprises filling the bone defects in an animal with the bone filling material. The bone filling material of the invention has excellent cell compatibility, biocompatibility and shape-imparting property.
    Type: Grant
    Filed: September 10, 2010
    Date of Patent: September 16, 2014
    Assignees: Aichi Gakuin, Matsutani Chemical industry Co., Ltd.
    Inventors: Takafumi Asai, Tatsushi Kawai
  • Publication number: 20140100345
    Abstract: An object of the invention is to provide a molding with suppressed coloring which has good weather resistance and in which the advantageous effect does not decrease with time. The present invention provides a molding material comprising a polymer (A) obtained by polymerizing 0.01 to 35 mol % of monomer (a1) represented by a specified formula (1) and 65 to 99.99 mol % of monomer (a2) whose main component is methylmethacrylate.
    Type: Application
    Filed: May 30, 2012
    Publication date: April 10, 2014
    Applicant: MITSUBISHI RAYON CO., LTD.
    Inventors: Fuminori Nakaya, Tetsuya Noda, Keiichi Sakashita, Hiroyuki Nogami, Takafumi Asai
  • Publication number: 20120064172
    Abstract: A bone filling material comprising sintered titanium dioxide and dextrin and a method for reconstructing bone defects which comprises filling the bone defects in an animal with the bone filling material. The bone filling material of the invention has excellent cell compatibility, biocompatibility and shape-imparting property.
    Type: Application
    Filed: September 10, 2010
    Publication date: March 15, 2012
    Applicants: MATSUTANI CHEMICAL INDUSTRY CO., LTD., AICHI GAKUIN
    Inventors: Takafumi ASAI, Tatsushi Kawai