Patents by Inventor Kenji Takatsuka

Kenji Takatsuka 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: 11086115
    Abstract: A microscope apparatus includes an illumination optical system that emits activating light and exciting light, an image capturing unit that captures an image formed by an imaging optical system, an image processing unit that carries out image processing using an image capturing result from the image capturing unit, and a controller. The controller provides a plurality of image generation periods and interrupt periods; causes, in the image generation periods, the activated fluorescent material to be irradiated with the exciting light and causes the image capturing unit to capture an image of the fluorescent light from the activated fluorescent material in a plurality of frame periods; and sets an intensity of the exciting light in the interrupt periods to be lower than an intensity in the image generation periods or causes the emission of the exciting light to stop in the interrupt periods.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: August 10, 2021
    Assignee: NIKON CORPORATION
    Inventors: Wataru Tomosugi, Kenji Takatsuka
  • Publication number: 20210032580
    Abstract: A cell culture container is provided which is filled with a cell culture substrate (14) including a gel layer formed of a gel (15) capable of being denatured by heating and a gold nanoparticle layer (13) formed on one surface of the gel layer, in which a cell is cultured on a side of the one surface or a side of the other surface in the cell culture substrate. A method for manufacturing a cell culture container, including: a step of filling the cell culture container with a gel capable of being denatured by heating; and a step of forming a gold nanoparticle layer on one surface of the gel. A method for acquiring a cell, including: a step of selecting a cell to be acquired from cells placed in the cell culture container; a step of irradiating a cell culture substrate in the vicinity of the selected cell with light; and a step of recovering the selected cell.
    Type: Application
    Filed: August 18, 2020
    Publication date: February 4, 2021
    Inventors: Chie KOJIMA, Tatsuya SHIMIZU, Yuji HARAGUCHI, Takeshi KAWANO, Kenji TAKATSUKA, Kaede YOKOYAMA, Yusuke TAKI
  • Patent number: 10847401
    Abstract: A wafer holding apparatus includes an electrostatic chuck configured to clamp an object, a baseplate made of aluminum and configured to support the electrostatic chuck, a water pathway portion disposed in contact with or inside the baseplate and made of a metal having higher corrosion resistance than aluminum, and a water pathway disposed inside the water pathway portion and having an entire wall surface thereof constituted by the water pathway portion, wherein the baseplate and the water pathway portion are directly bonded to each other.
    Type: Grant
    Filed: June 12, 2017
    Date of Patent: November 24, 2020
    Assignees: SHINKO ELECTRIC INDUSTRIES CO., LTD., TOHOKU SEIMITSU CO., LTD.
    Inventors: Norio Shiraiwa, Syuuichi Andou, Kenji Takatsuka, Katsuhiro Kosuga
  • Publication number: 20180017774
    Abstract: A microscope apparatus includes an illumination optical system that emits activating light and exciting light, an image capturing unit that captures an image formed by an imaging optical system, an image processing unit that carries out image processing using an image capturing result from the image capturing unit, and a controller . The controller provides a plurality of image generation periods and interrupt periods; causes, in the image generation periods, the activated fluorescent material to be irradiated with the exciting light and causes the image capturing unit to capture an image of the fluorescent light from the activated fluorescent material in a plurality of frame periods; and sets an intensity of the exciting light in the interrupt periods to be lower than an intensity in the image generation periods or causes the emission of the exciting light to stop in the interrupt periods.
    Type: Application
    Filed: September 26, 2017
    Publication date: January 18, 2018
    Applicant: NIKON CORPORATION
    Inventors: Wataru TOMOSUGI, Kenji TAKATSUKA
  • Publication number: 20170372934
    Abstract: A wafer holding apparatus includes an electrostatic chuck configured to clamp an object, a baseplate made of aluminum and configured to support the electrostatic chuck, a water pathway portion disposed in contact with or inside the baseplate and made of a metal having higher corrosion resistance than aluminum, and a water pathway disposed inside the water pathway portion and having an entire wall surface thereof constituted by the water pathway portion, wherein the baseplate and the water pathway portion are directly bonded to each other.
    Type: Application
    Filed: June 12, 2017
    Publication date: December 28, 2017
    Inventors: Norio SHIRAIWA, Syuuichi ANDOU, Kenji TAKATSUKA, Katsuhiro KOSUGA
  • Patent number: 7713713
    Abstract: The present invention provides a polypeptide having an intracellular calcium ion indicator function, which contains the following elements (a)-(c): (a) a polypeptide residue consisting of a membrane localization signal sequence; (b) a first fluorescent polypeptide residue; and (c) a second fluorescent polypeptide residue in the order of (a), (b) and (c) from the N-terminal side, wherein one of the two fluorescent polypeptide residues is a donor for fluorescence resonance energy transfer, the other is the corresponding acceptor, and the two fluorescent polypeptide residues are connected with a linker polypeptide residue containing at least one calpain sensitive sequence, thereby to allow fluorescence resonance energy transfer between them.
    Type: Grant
    Filed: April 14, 2006
    Date of Patent: May 11, 2010
    Assignee: Kyoto University
    Inventors: Harunori Ohmori, Takahiro Ishii, Kenji Takatsuka
  • Publication number: 20070042345
    Abstract: The present invention provides a polypeptide having an intracellular calcium ion indicator function, which contains the following elements (a)-(c): (a) a polypeptide residue consisting of a membrane localization signal sequence; (b) a first fluorescent polypeptide residue; and (c) a second fluorescent polypeptide residue in the order of (a), (b) and (c) from the N-terminal side, wherein one of the two fluorescent polypeptide residues is a donor for fluorescence resonance energy transfer, the other is the corresponding acceptor, and the two fluorescent polypeptide residues are connected with a linker polypeptide residue containing at least one calpain sensitive sequence, thereby to allow fluorescence resonance energy transfer between them.
    Type: Application
    Filed: April 14, 2006
    Publication date: February 22, 2007
    Applicant: Kyoto University
    Inventors: Harunori Ohmori, Takahiro Ishii, Kenji Takatsuka
  • Patent number: 4156550
    Abstract: In a high pressure sodium vapor lamp, sufficiently small quantities of sodium and mercury are inserted therein so that all of the added sodium and mercury will be vaporized when the lamp is operated. The quantities are so selected that a completed lamp exhibits high efficiency, remarkable color rendition and durability. Also, the lamp can produce a suitable arc voltage by means of a less expensive ballast. The small quantity of sodium added is accurately controlled by decomposing sodium azide NaN3. The small quantity of mercury is accurately controlled by decomposing Ti-Hg alloy or Al-Zr-Ti-Hg alloy.
    Type: Grant
    Filed: September 6, 1977
    Date of Patent: May 29, 1979
    Assignee: Japan Storage Battery Company Limited
    Inventors: Haruo Furukubo, Yasaburo Takeji, Kenji Takatsuka