Patents by Inventor Sei Murakami

Sei Murakami 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: 11015159
    Abstract: A single-use cell culturing apparatus and a culturing bag are provided, each of which can improve efficiency of stirring a culture solution and further reduce a possibility of leakage of the culture solution. The single-use cell culturing apparatus of the present invention includes a housing that accommodates the culturing bag which is flexible and can seal the culture solution inside thereof. The housing has, on an inner surface thereof, a curved convex-shaped protrusion provided at a portion of a contact face at which the housing is in contact with the culturing bag. The culturing bag of the present invention is accommodated in the housing of the single-use cell culturing apparatus; is flexible; and can seal the culture solution inside thereof. The culturing bag includes a concave portion having a shape corresponding to the curved convex protrusion disposed on a part of the housing.
    Type: Grant
    Filed: July 1, 2016
    Date of Patent: May 25, 2021
    Assignees: HITACHI, LTD., FUJIMORI KOGYO CO., LTD.
    Inventors: Masaru Nanba, Takashi Andou, Yui Sugita, Sei Murakami, Hiroyuki Matsuda
  • Patent number: 10086313
    Abstract: An object of the present invention is to separate a material to be separated at a low cost and constant accuracy when the material to be separated is separated from a mobile phase containing the material to be separated through the passing of the mobile phase through a stationary phase, even if the mobile phase has a large volume. A separation device characterized in that a separation column provided with a stationary phase having a volume capable of processing the entire volume of a mobile phase containing a material to be separated is provided, the separation column is replaceable, and the usage count of the stationary phase reaches a lifetime count through the processing of one batch.
    Type: Grant
    Filed: June 19, 2014
    Date of Patent: October 2, 2018
    Assignee: HITACHI, LTD.
    Inventors: Keisuke Shibuya, Yasuhiko Tada, Takeyuki Kondo, Sei Murakami
  • Publication number: 20180223233
    Abstract: A single-use cell culturing apparatus and a culturing bag are provided, each of which can improve efficiency of stirring a culture solution and further reduce a possibility of leakage of the culture solution. The single-use cell culturing apparatus of the present invention includes a housing that accommodates the culturing bag which is flexible and can seal the culture solution inside thereof. The housing has, on an inner surface thereof, a curved convex-shaped protrusion provided at a portion of a contact face at which the housing is in contact with the culturing bag. The culturing bag of the present invention is accommodated in the housing of the single-use cell culturing apparatus; is flexible; and can seal the culture solution inside thereof. The culturing bag includes a concave portion having a shape corresponding to the curved convex protrusion disposed on a part of the housing.
    Type: Application
    Filed: July 1, 2016
    Publication date: August 9, 2018
    Inventors: Masaru NANBA, Takashi ANDOU, Yui SUGITA, Sei MURAKAMI, Hiroyuki MATSUDA
  • Patent number: 9845453
    Abstract: A cell culture apparatus is provided which can continuously and accurately measure turbidity of a cell culture solution and culture a cell, without inserting a turbidity sensor from outside into a sterile bag. The cell culture apparatus includes: a flexible and transparent sterile bag that is installed at a prescribed position in the cell culture apparatus and in which a cell contained in a cell culture solution is cultured; and a turbidity sensor that includes a light emitter which emits light to the cell culture solution in the sterile bag via a portion of the sterile bag, a light receiver which receives the light transmitted through the cell culture solution via another portion of the sterile bag, and that is configured to place the light emitter, the portion of the sterile bag, another portion of the sterile bag, and the light receiver, optically on a same straight line.
    Type: Grant
    Filed: August 1, 2014
    Date of Patent: December 19, 2017
    Assignee: HITACHI, LTD.
    Inventors: Masaru Nanba, Ryouichi Haga, Sei Murakami, Haruo Suzuki
  • Publication number: 20160186123
    Abstract: A cell culture apparatus is provided which can continuously and accurately measure turbidity of a cell culture solution and culture a cell, without inserting a turbidity sensor from outside into a sterile bag. The cell culture apparatus includes: a flexible and transparent sterile bag that is installed at a prescribed position in the cell culture apparatus and in which a cell contained in a cell culture solution is cultured; and a turbidity sensor that includes a light emitter which emits light to the cell culture solution in the sterile bag via a portion of the sterile bag, a light receiver which receives the light transmitted through the cell culture solution via another portion of the sterile bag, and that is configured to place the light emitter, the portion of the sterile bag, another portion of the sterile bag, and the light receiver, optically on a same straight line.
    Type: Application
    Filed: August 1, 2014
    Publication date: June 30, 2016
    Applicant: HITACHI, LTD.
    Inventors: Masaru NANBA, Ryouichi HAGA, Sei MURAKAMI, Haruo SUZUKI
  • Publication number: 20160136543
    Abstract: An object of the present invention is to separate a material to be separated at a low cost and constant accuracy when the material to be separated is separated from a mobile phase containing the material to be separated through the passing of the mobile phase through a stationary phase, even if the mobile phase has a large volume. A separation device characterized in that a separation column provided with a stationary phase having a volume capable of processing the entire volume of a mobile phase containing a material to be separated is provided, the separation column is replaceable, and the usage count of the stationary phase reaches a lifetime count through the processing of one batch.
    Type: Application
    Filed: June 19, 2014
    Publication date: May 19, 2016
    Applicant: HITACHI, LTD.
    Inventors: Keisuke SHIBUYA, Yasuhiko TADA, Takeyuki KONDO, Sei MURAKAMI
  • Publication number: 20120101137
    Abstract: The object of the present invention is to provide a compound having a glucokinase-activating effect. A pharmaceutical composition comprising a compound represented by the general formula (I) or a pharmaceutically acceptable salt thereof as an active ingredient: wherein X means a nitrogen atom or CR6, wherein R6 means a hydrogen atom or a halogen atom; R1 means a hydrogen atom, a C1-C6 alkyl group, a C1-C6 alkoxy group or a C1-C6 alkylthio group; R2 means a hydrogen atom or a fluorine atom; R3 means a hydrogen atom or a C1-C6 alkyl group; and one of R4 and R5 means a hydrogen atom or a C1-C6 alkyl group, and the other means a C1-C6 alkylenecarboxylic acid, a C1-C6 alkylsulfonyl group, a C1-C6 alkylcarbonyl group, or CONH2.
    Type: Application
    Filed: June 26, 2010
    Publication date: April 26, 2012
    Applicant: SANWA KAGAKU KENKYUSHO CO., LTD.
    Inventors: Tokuyuki Yamashita, Kaori Chikamatsu, Naoki Takahashi, Hisakazu Iwai, Masakazu Kogami, Masao Sakairi, Nobuhide Watanabe, Hiroki Fujieda, Daisuke Kataoka, Mitsuhiro Makino, Noriyasu Kato, Toshiyuki Miyazawa, Kazushige Nagai, Nobuyoshi Kasugai, Hiroyo Kataoka, Naoki Hiramatsu, Nobuaki Tsuruta, Yurie Yamada, Mika Miyoshi, Sei Murakami, Izumi Goto, Tohru Izuchi, Kimie Suzuki, Satoko Harada, Martin Lang, Markus Hans-Juergen Seifert, Kristina Kaarina Wolf
  • Publication number: 20090081723
    Abstract: The present invention achieves a smaller difference between a dissolved oxygen concentration in an upper part of a culture tank and a dissolved oxygen concentration in a lower part of the culture tank. The present invention comprises: a culture tank; a sparger means arranged in a lower part of the culture tank; and multiple impellers being arranged in multiple stages in a vertical direction of the culture tank and having a larger mass transfer capacity coefficient KLa per unit number of revolutions in an upper stage than in a lower stage.
    Type: Application
    Filed: August 12, 2008
    Publication date: March 26, 2009
    Inventors: Ken AMANO, Ryusei Nakano, Sei Murakami
  • Patent number: 5296963
    Abstract: An inverted microscope is adapted so that a specimen thereon e.g. cells can be irradiated by a laser beam. The laser beam is guided from a laser source by a series of adjustably movable reflectors which introduce it into the microscope optical pathway at a parallel-beam region thereof, and through the objective lens of the microscope. A point to be irradiated can be selected by moving the reflectors which may be galvanometrically-movable. The laser beam can be focused together with the microscope image. The movable reflectors are kept within 200 mm behind the objective lens principal plane (PP) to ensure that the laser can be applied all over the microscope viewing field.
    Type: Grant
    Filed: February 27, 1992
    Date of Patent: March 22, 1994
    Assignee: Hitachi, Ltd.
    Inventors: Sei Murakami, Masao Takai, Ryusei Nakano, Nobuo Kimura