Patents by Inventor Youichi Maeda

Youichi Maeda 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: 20240083867
    Abstract: A compound of the formula (I) or a salt thereof (R represents methyl group or fluorine atom) having an mPGES-1 inhibitory activity and useful as an active ingredient of a medicament for prophylactic and/or therapeutic treatment of such diseases as inflammation, pain, or rheumatism.
    Type: Application
    Filed: February 1, 2022
    Publication date: March 14, 2024
    Applicant: ASKA PHARMACEUTICAL CO., LTD.
    Inventors: Makoto OKADA, Youichi NAKANO, Takashi NOSE, Satoshi MAEDA, Tomoaki WATANABE
  • Patent number: 8232358
    Abstract: Disclosed is a production method of polypropylene having high MFR value and excellent product qualities with high productivity. The method enables to produce a propylene polymer by a gas phase process where the reaction heat is removed mainly by the heat of vaporization of liquefied propylene. The method is characterized by using a solid catalyst component (A) which is prepared by contacting components (A1), (A2) and (A3) shown below. Further disclosed are: a propylene polymer produced by the method; a propylene polymer composition; and a molded body of the composition. Component (A1): a solid component containing titanium, magnesium and a halogen as essential components. Component (A2): a vinyl silane compound. Component (A3): an organosilicon compound having an alkoxy group (A3a) and/or a compound having at least two ether bonds (A3b).
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: July 31, 2012
    Assignee: Japan Polypropylene Corporation
    Inventors: Yoshitaka Kobayashi, Takanori Nakashima, Yuusuke Yamada, Iku Kouzai, Youichi Maeda, Kouji Nakayama, Keiji Fukuda
  • Patent number: 7858716
    Abstract: Disclosed is a production method of polypropylene having high MFR value and excellent product qualities with high productivity. The method enables to produce a propylene polymer by a gas phase process where the reaction heat is removed mainly by the heat of vaporization of liquefied propylene. The method is characterized by using a solid catalyst component (A) which is prepared by contacting components (A1), (A2) and (A3) shown below. Further disclosed are: a propylene polymer produced by the method; a propylene polymer composition; and a molded body of the composition. Component (A1): a solid component containing titanium, magnesium and a halogen as essential components. Component (A2): a vinyl silane compound. Component (A3): an organosilicon compound having an alkoxy group (A3a) and/or a compound having at least two ether bonds (A3b).
    Type: Grant
    Filed: January 31, 2007
    Date of Patent: December 28, 2010
    Assignee: Japan Polypropylene Corporation
    Inventors: Yoshitaka Kobayashi, Takanori Nakashima, Yuusuke Yamada, Iku Kouzai, Youichi Maeda, Kouji Nakayama, Keiji Fukuda
  • Publication number: 20100099811
    Abstract: Disclosed is a production method of polypropylene having high MFR value and excellent product qualities with high productivity. The method enables to produce a propylene polymer by a gas phase process where the reaction heat is removed mainly by the heat of vaporization of liquefied propylene. The method is characterized by using a solid catalyst component (A) which is prepared by contacting components (A1), (A2) and (A3) shown below. Further disclosed are: a propylene polymer produced by the method; a propylene polymer composition; and a molded body of the composition. Component (A1): a solid component containing titanium, magnesium and a halogen as essential components. Component (A2): a vinyl silane compound. Component (A3): an organosilicon compound having an alkoxy group (A3a) and/or a compound having at least two ether bonds (A3b).
    Type: Application
    Filed: December 18, 2009
    Publication date: April 22, 2010
    Applicant: JAPAN POLYPROPYLENE CORPORATION
    Inventors: Yoshitaka KOBAYASHI, Takanori Nakashima, Yuusuke Yamada, Iku Kouzai, Youichi Maeda, Kouji Nakayama, Keiji Fukuda
  • Publication number: 20090259006
    Abstract: Disclosed is a production method of polypropylene having high MFR value and excellent product qualities with high productivity. The method enables to produce a propylene polymer by a gas phase process where the reaction heat is removed mainly by the heat of vaporization of liquefied propylene. The method is characterized by using a solid catalyst component (A) which is prepared by contacting components (A1), (A2) and (A3) shown below. Further disclosed are: a propylene polymer produced by the method; a propylene polymer composition; and a molded body of the composition. Component (A1): a solid component containing titanium, magnesium and a halogen as essential components. Component (A2): a vinyl silane compound. Component (A3): an organosilicon compound having an alkoxy group (A3a) and/or a compound having at least two ether bonds (A3b).
    Type: Application
    Filed: January 31, 2007
    Publication date: October 15, 2009
    Applicant: JAPAN POLYPROPYLENE CORPORATION
    Inventors: Yoshitaka Kobayashi, Takanori Nakashima, Yuusuke Yamada, Iku Kouzai, Youichi Maeda, Kouji Nakayama, Keiji Fukuda
  • Patent number: 7333730
    Abstract: A steering method and system controls a plurality of infrared units with a plurality of infrared controllers. The infrared controller sets the time interval between the end of a start signal and the start of a steering signal to match a predetermined time interval specific to each infrared unit being controlled.
    Type: Grant
    Filed: March 14, 2002
    Date of Patent: February 19, 2008
    Assignee: Nikko Co., Ltd.
    Inventor: Youichi Maeda
  • Publication number: 20050159077
    Abstract: An infrared steering method for controlling a plurality of infrared units being controlled with a plurality of infrared controllers, characterized in that the infrared controller compares the time interval between the end of a start signal and the start of a steering signal being transmitted with a predetermined time interval specific to each infrared unit being controlled and identifies a matching signal as a signal for the infrared unit being controlled.
    Type: Application
    Filed: March 14, 2002
    Publication date: July 21, 2005
    Inventor: Youichi Maeda
  • Patent number: 4633225
    Abstract: A circuit for generating a desired two terminal impedance at the two terminals by coupling analog signals appearing at the two terminals into an analog to digital converter, supplying the output therefrom to a digital processing circuit, leading the outputs therefrom to a digital analog converter, and connecting the output therefrom to the two terminals to form a feedback loop. The digital processing circuit processes using a desired transfer function. An analog processing circuit is provided which receives the analog signals appearing at said two terminals as input, and which passes the component of the signal having frequencies higher than the frequencies processed in the digital processing circuit.
    Type: Grant
    Filed: March 12, 1984
    Date of Patent: December 30, 1986
    Assignee: Nippon Telegraph and Telephone Public Corp.
    Inventors: Toshio Hayashi, Youichi Maeda