Patents by Inventor Takafumi Sakai

Takafumi Sakai 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: 9388474
    Abstract: Provided are an oligonucleotide which realizes specific and highly sensitive detection of toxigenic C. difficile, and a method for detecting toxigenic C. difficile, the method employing the oligonucleotide. 1) A primer pair containing an oligonucleotide having a nucleotide sequence represented by SEQ ID NO: 1, and an oligonucleotide having a nucleotide sequence represented by SEQ ID NO: 2; or a primer pair having complementary sequences to the nucleotide sequences. 2) A primer pair containing an oligonucleotide having a nucleotide sequence represented by SEQ ID NO: 4, and an oligonucleotide having a nucleotide sequence represented by SEQ ID NO: 5; or a primer pair having complementary sequences to the nucleotide sequences.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: July 12, 2016
    Assignee: KABUSHIKI KAISHA YAKULT HONSHA
    Inventors: Hiroyuki Kubota, Hiroshi Makino, Takafumi Sakai, Eiji Ishikawa, Kenji Oishi
  • Publication number: 20160051630
    Abstract: To provide a therapeutic agent for gastrointestinal disorder such as diabetic gastroparesis. A postprandial gastrokinetic agent containing (A) ghrelin or a ghrelin agonist and (B) motilin or a motilin agonist as active ingredients, in which both the ingredients (A) and (B) are administered so as to act on the stomach after food intake.
    Type: Application
    Filed: February 10, 2014
    Publication date: February 25, 2016
    Applicants: ZERIA PHARMACEUTICAL CO., LTD., SAITAMA UNIVERSITY
    Inventors: Takafumi SAKAI, Ichiro SAKATA, Kayuri KURODA, Makoto YOSHIMURA
  • Patent number: 8968237
    Abstract: The present invention provides a method whereby a drug can be conveniently injected into the living body, without sticking a needle, from a device that is not in contact with the living body, and a device therefor. Specifically provided is a method for injecting a peptide drug such as insulin, and a device therefor. No special consumables are needed except the drug solution or suspension. The method and device comprise injecting a drug into the living body by electrospraying a solution or suspension of the drug from a nozzle to which high voltage is applied and which is not in contact with the living body.
    Type: Grant
    Filed: January 8, 2010
    Date of Patent: March 3, 2015
    Assignees: Mitsubishi Gas Chemical Company, Inc., Saitama University
    Inventors: Kazuto Ikemoto, Takafumi Sakai, Kanako Koike, Satoshi Sakahara
  • Publication number: 20140212879
    Abstract: Provided are an oligonucleotide which realizes specific and highly sensitive detection of toxigenic C. difficile, and a method for detecting toxigenic C. difficile, the method employing the oligonucleotide. 1) A primer pair containing an oligonucleotide having a nucleotide sequence represented by SEQ ID NO: 1, and an oligonucleotide having a nucleotide sequence represented by SEQ ID NO: 2; or a primer pair having complementary sequences to the nucleotide sequences. 2) A primer pair containing an oligonucleotide having a nucleotide sequence represented by SEQ ID NO: 4, and an oligonucleotide having a nucleotide sequence represented by SEQ ID NO: 5; or a primer pair having complementary sequences to the nucleotide sequences.
    Type: Application
    Filed: August 31, 2012
    Publication date: July 31, 2014
    Applicant: KABUSHIKI KAISHA YAKULT HONSHA
    Inventors: Hiroyuki Kubota, Hiroshi Makino, Takafumi Sakai, Eiji Ishikawa, Kenji Oishi
  • Publication number: 20110275982
    Abstract: The present invention provides a method whereby a drug can be conveniently injected into the living body, without sticking a needle, from a device that is not in contact with the living body, and a device therefor. Specifically provided is a method for injecting a peptide drug such as insulin, and a device therefor. No special consumables are needed except the drug solution or suspension. The method and device comprise injecting a drug into the living body by electrospraying a solution or suspension of the drug from a nozzle to which high voltage is applied and which is not in contact with the living body.
    Type: Application
    Filed: January 8, 2010
    Publication date: November 10, 2011
    Applicant: MITSUBISHI GAS CHEMICAL COMPANT
    Inventors: Kazuto Ikemoto, Takafumi Sakai, Kanako Koike, Satoshi Sakahara
  • Publication number: 20090233367
    Abstract: There is provided a method by which multiple types of substances desired to be transferred into cells can be continuously transferred into multiple types of cells by a convenient procedure, a cell in which the substance desired to be transferred into cells has been taken up by this method, and an apparatus for transferring a substance into cells by this method. The foregoing objects can be achieved by electrospraying cells with a liquid free from the substance to be transferred into cells while the cells are kept in contact with the substance to be transferred into cells, or first electrospraying cells with a liquid free from the substance to be transferred into cells and then bringing the cells into contact with the substance to be transferred into cells.
    Type: Application
    Filed: May 16, 2007
    Publication date: September 17, 2009
    Applicants: MITSUBISHI GAS CHEMICAL CO., INC., SAITAMA UNIVERSITY
    Inventors: Kazuto Ikemoto, Yusuke Okubo, Kanako Koike, Sayaka Aizawa, Ichiro Sakata, Takafumi Sakai
  • Patent number: 5565001
    Abstract: A control apparatus for a hydraulically operated vehicular transmission having a plurality of hydraulic engaging elements has an accumulator which is connected in parallel with a hydraulic engaging element for a low-speed transmission train and a back pressure generating source which generates a hydraulic oil pressure to be supplied to a back pressure chamber of the accumulator. The control apparatus includes a changeover valve which can be changed over between a first position in which the back pressure chamber of the accumulator and the back pressure generating source are brought into communication with each other and a second position in which the communication is cut off to lower a pressure in the back pressure chamber. The changeover valve is arranged to be changed over from the second position to the first position when a hydraulic oil pressure in the hydraulic engaging element for the low-speed transmission train has exceeded a predetermined pressure.
    Type: Grant
    Filed: August 3, 1994
    Date of Patent: October 15, 1996
    Assignee: Honda Giken Kabushiki Kaisha
    Inventors: Takafumi Sakai, Hideki Wakamatsu, Kenichi Haraguchi, Masaaki Takamatsu
  • Patent number: 5505672
    Abstract: In a control apparatus for a hydraulically operated vehicular transmission which has a plurality of hydraulic engaging elements, an orifice is disposed in an oil passage which is communicated with a hydraulic engaging element for a low-speed transmission train. The control apparatus has a bypass passage which bypasses the orifice, a control valve which can be switched between a communicated state in which the bypass passage is in communication and a cut-off state in which the communication of the bypass passage is cut off, and a control circuit which changes over the control valve to the communicated state under a predetermined condition at a time of switching from a running range to a neutral range.
    Type: Grant
    Filed: August 3, 1994
    Date of Patent: April 9, 1996
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Takafumi Sakai, Hideki Wakamatsu, Yoshihiro Tsuboi, Hitoshi Kondo
  • Patent number: 5469754
    Abstract: The transmission is of a type that a low-speed transmission train is established in cooperation with one-way clutch. A high-speed transmission train is established by hydraulic oil supply via a shift valve in a condition in which the hydraulic oil is kept supplied to the low-speed hydraulic engaging element. A pressure adjusting valve and a hydraulic oil pressure control valve control, to increase or reduce, the supply pressure of the hydraulic oil to the high-speed hydraulic engaging element. A speed change controller at an initial stage maintains the shift valve, at the time of speed changing from a high-speed transmission train to a low-speed transmission train, in a condition in which the hydraulic oil is supplied to the high-speed hydraulic engaging element. The supply pressure of the hydraulic oil is reduced in this condition until the high-speed hydraulic engaging element gives rise to a slip.
    Type: Grant
    Filed: July 29, 1994
    Date of Patent: November 28, 1995
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Takafumi Sakai, Hideki Wakamatsu, Yoshihiro Tsuboi, Masaya Kawauchi
  • Patent number: 5409421
    Abstract: A control apparatus for a hydraulically operated vehicular transmission has a plurality of hydraulic engaging elements including a first hydraulic engaging element which is kept engaged in a plurality of transmission trains. The control apparatus has an accumulator which is connected, via a branched oil passage, to a working oil passage which is communicated with the first hydraulic engaging element. It also has a control valve which is disposed in the branched oil passage and which can be moved between a first position in which an upstream portion of the branched oil passage on a side of the first hydraulic engaging element and a downstream portion of the branched oil passage on a side of the accumulator are brought into communication with each other and a second position in which the communication is shut off. It further has an oil discharge passage which is connected to a second hydraulic engaging element when the second hydraulic engaging element is disengaged.
    Type: Grant
    Filed: June 1, 1994
    Date of Patent: April 25, 1995
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Takafumi Sakai, Hideki Wakamatsu, Kenichi Haraguchi