Patents by Inventor Hiroaki Kitazawa

Hiroaki Kitazawa 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: 20240351148
    Abstract: A flux contains: a triol solvent (S1); a monoamide-based thixotropic agent; and at least one solvent (S2) selected from the group consisting of a monohydric solvent and a dihydric solvent, wherein the content of the monoamide-based thixotropic agent is 0.5% by mass or more and less than 15% by mass with respect to the total mass of the flux, and the content of the solvent (S2) is 50% by mass or more with respect to the total mass of the flux.
    Type: Application
    Filed: April 9, 2024
    Publication date: October 24, 2024
    Inventors: Hiroaki KAWAMATA, Yuki FUJINO, Kazuya KITAZAWA, Keisuke SHINOZAKI
  • Publication number: 20240288427
    Abstract: Provided are an antibody or fragment thereof specifically bindable to the NTD or CTD of the N protein of SARS-CoV-2, and use of the antibody or fragment thereof. An antibody or fragment thereof specifically bindable to the amino acid sequence of SEQ ID NO: 1 or 2 is disclosed.
    Type: Application
    Filed: October 28, 2021
    Publication date: August 29, 2024
    Applicants: TOYOBO CO., LTD., NATIONAL UNIVERSITY CORPORATION UNIVERSITY OF TOYAMA
    Inventors: Takashi KAWAHATA, Takahiro MASUYA, Kosuke YUHARA, Kengo NISHIMURA, Hiroaki KITAZAWA, Toshihiro KUROITA, Masaharu ISOBE, Nobuyuki KUROSAWA
  • Patent number: 12049047
    Abstract: A block is configured such that, when a composite material having a curved part in a cross-sectional shape cut by a plane orthogonal to an X-axis is deformed into a shape corresponding to a mold through pressure application while being kept in the mold, the block is brought into contact with the curved part of the composite material. The block includes: a first contact part which extends along the X-axis direction so as to be in contact with the curved part of the composite material; and a second contact part which is partially disposed along the X-axis direction, is in contact with the curved part of the composite material, and is of higher rigidity than the first contact part.
    Type: Grant
    Filed: June 17, 2020
    Date of Patent: July 30, 2024
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Toshiki Kitazawa, Hiroaki Nakamura, Masahiko Shimizu
  • Patent number: 11767349
    Abstract: The invention provides streptolysin O containing a polypeptide comprising an amino acid sequence having deletion of a polypeptide extending from a lysine residue at position 2 of SEQ ID NO: 1 to any of an alanine residue at position 31, a glutamate residue at position 32, a serine residue at position 33, and an asparagine residue at position 34, and also having deletion of any of an isoleucine residue at position 465 to an alanine residue at position 472 of SEQ ID NO: 1 and all of the subsequent amino acid residues, as well as variants thereof and related DNA, vectors, transformants, and methods of use thereof.
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: September 26, 2023
    Assignee: TOYOBO CO., LTD.
    Inventors: Yosuke Sumida, Hiroaki Kitazawa, Takahide Kishimoto
  • Publication number: 20200325186
    Abstract: The invention provides streptolysin O containing a polypeptide comprising an amino acid sequence having deletion of a polypeptide extending from a lysine residue at position 2 of SEQ ID NO: 1 to any of an alanine residue at position 31, a glutamate residue at position 32, a serine residue at position 33, and an asparagine residue at position 34, and also having deletion of any of an isoleucine residue at position 465 to an alanine residue at position 472 of SEQ ID NO: 1 and all of the subsequent amino acid residues, as well as variants thereof and related DNA, vectors, transformants, and methods of use thereof.
    Type: Application
    Filed: May 26, 2017
    Publication date: October 15, 2020
    Applicant: TOYOBO CO., LTD.
    Inventors: Yosuke SUMIDA, Hiroaki KITAZAWA, Takahide KISHIMOTO
  • Patent number: 9506042
    Abstract: The present invention provides a novel glucose dehydrogenase that has excellent substrate specificity, specific activity, thermal stability, and the like, and that is suitable for use in SMBG sensors. The present invention provides a purified polypeptide comprising an amino acid sequence having at least 80% identity to the sequence of SEQ ID NO: 1 and having glucose dehydrogenase activity.
    Type: Grant
    Filed: December 29, 2014
    Date of Patent: November 29, 2016
    Assignee: Toyobo Co., Ltd.
    Inventors: Yosuke Sumida, Rie Hirao, Yuu Utashima, Hiroaki Kitazawa, Hiroshi Aiba, Takahide Kishimoto, Shusaku Yanagidani
  • Patent number: 9115051
    Abstract: A method for producing a polyamine composition with high production efficiency that has a low salt concentration includes (1) a step of treating a plant and/or a processed plant product with ethanol; (2) a step of treating the plant and/or the processed plant product with water; (3) a step of treating the plant and/or the processed plant product under an acidic condition; and (4) a step of separating and collecting a liquid fraction.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: August 25, 2015
    Assignee: TOYOBO CO., LTD.
    Inventors: Chiaki Yamada, Hiroaki Kitazawa, Shusaku Yanagidani
  • Publication number: 20150111280
    Abstract: The present invention provides a novel glucose dehydrogenase that has excellent substrate specificity, specific activity, thermal stability, and the like, and that is suitable for use in SMBG sensors. The present invention provides a purified polypeptide comprising an amino acid sequence having at least 80% identity to the sequence of SEQ ID NO: 1 and having glucose dehydrogenase activity.
    Type: Application
    Filed: December 29, 2014
    Publication date: April 23, 2015
    Inventors: Yosuke SUMIDA, Rie HIRAO, Yuu UTASHIMA, Hiroaki KITAZAWA, Hiroshi AIBA, Takahide KISHIMOTO, Shusaku YANAGIDANI
  • Publication number: 20140378708
    Abstract: [Object] An object is to provide a method for producing a polyamine composition with high production efficiency that has a low salt concentration and is derived from plant material. [Solution] A method for producing a polyamine composition includes (1) a step of treating a plant and/or a processed plant product with ethanol; (2) a step of treating the plant and/or the processed plant product with water; (3) a step of treating the plant and/or the processed plant product under an acidic condition; and (4) a step of separating and collecting a liquid fraction.
    Type: Application
    Filed: September 28, 2012
    Publication date: December 25, 2014
    Applicant: TOYOBO CO., LTD.
    Inventors: Chiaki Yamada, Hiroaki Kitazawa, Shusaku Yanagidani
  • Publication number: 20110236512
    Abstract: [Object] An object of the present invention is to provide, for the purpose of preventing or suppressing stress at a cellular level, a composition containing a plant-derived polyamine-containing extract that has a stress-reducing action, an anti-stress action, a stress-suppressing action, a stress-preventing action, a stress-inhibiting action, a stress protective action, or the like. Another object of the present invention is to provide cosmetics, quasi drugs, medical supplies, sanitary goods, pharmaceuticals, foods, or drinks that each contain such a composition. [Solution] A stress-reducing agent including a plant-derived polyamine-containing extract serving as an active component is provided.
    Type: Application
    Filed: September 28, 2009
    Publication date: September 29, 2011
    Applicant: TOYO BOSEKI KABUSHIKI KAISHA
    Inventors: Hiroaki Kitazawa, Yoshihisa Kasukabe, Masaru Kitagawa
  • Patent number: 8003851
    Abstract: It is intended to provide by improving a known method of producing hyaluronic acid in a plant, a plant or a cultured plant cells which can produce hyaluronic acid at a lower cost and a further higher yield than before, a method of preparing the same, an expression vector for transformation, a method of producing hyaluronic acid using the plant or the cultured plant cells and the like. The method of producing hyaluronic acid comprising obtaining hyaluronic acid by co-expressing a protein with hyaluronic acid synthase activity and an exogenous protein with sugar-nucleotide synthase activity in a plant cell or a plant is provided.
    Type: Grant
    Filed: August 10, 2006
    Date of Patent: August 23, 2011
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Hiroaki Kitazawa, Shigeo Shibatani, Atsushi Sogabe
  • Publication number: 20090260108
    Abstract: It is intended to provide by improving a known method of producing hyaluronic acid in a plant, a plant or a cultured plant cells which can produce hyaluronic acid at a lower cost and a further higher yield than before, a method of preparing the same, an expression vector for transformation, a method of producing hyaluronic acid using the plant or the cultured plant cells and the like. The method of producing hyaluronic acid comprising obtaining hyaluronic acid by co-expressing a protein with hyaluronic acid synthase activity and an exogenous protein with sugar-nucleotide synthase activity in a plant cell or a plant is provided.
    Type: Application
    Filed: August 10, 2006
    Publication date: October 15, 2009
    Applicant: TOYO BOSEKI KABUSHIKI KAISHA
    Inventors: Hiroaki Kitazawa, Shigeo Shibatani, Atsushi Sogabe
  • Patent number: 7547819
    Abstract: The invention relates to a method of producing hyaluronic acid including (1) a step of transforming a plant cell using an expression recombinant vector including (i) a DNA encoding hyaluronic acid synthase or (ii) a DNA encoding a polypeptide having an amino acid sequence having one or more amino acid deletions, substitutions, additions or insertions in an amino acid sequence of the hyaluronic acid synthase and having an activity of synthesizing the hyaluronic acid, (2) a step of growing a transformant obtained by transformation, and (3) a step of separating the hyaluronic acid produced by the transformant.
    Type: Grant
    Filed: July 30, 2004
    Date of Patent: June 16, 2009
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Shigeo Shibatani, Shuhei Misawa, Izumi Ihara, Hiroaki Kitazawa
  • Publication number: 20060168690
    Abstract: The invention relates to a method of producing hyaluronic acid comprising (1) a step of transforming a plant cell using an expression recombinant vector comprising (i) a DNA encoding hyaluronic acid synthase or (ii) a DNA encoding a polypeptide having an amino acid sequence having one or more amino acid deletions, substitutions, additions or insertions in an amino acid sequence of the hyaluronic acid synthase and having an activity of synthesizing the hyaluronic acid, (2) a step of growing a transformant obtained by transformation, and (3) a step of separating the hyaluronic acid produced by the transformant.
    Type: Application
    Filed: July 30, 2004
    Publication date: July 27, 2006
    Applicant: Research Center of TOYO BOSEKI KABUSHIKI KAISHA
    Inventors: Shigeo Shibatani, Shuhei Misawa, Izumi Ihara, Hiroaki Kitazawa
  • Patent number: 6115148
    Abstract: An image processor includes a video processing circuit which converts and processes a video signal. A first image processing circuit further processes the video signal processed by the video processing circuit, with emphasis on image gradation to generate image data matching the recording format of a recording apparatus. A second image processing circuit further processes the video signal processed by the video processing circuit, with emphasis on the sharpness of image contours to generate image data matching the recording format of the recording apparatus. A selecting circuit selects the first or second image processing circuit based on the type of video signal processed by the video processing circuit.
    Type: Grant
    Filed: December 18, 1997
    Date of Patent: September 5, 2000
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kunio Imai, Masaya Kikuta, Hiroaki Kitazawa, Yuichi Hirai, Norio Shimura
  • Patent number: 6086185
    Abstract: When the color printing is performed using a recording head arranged such that number of nozzles for discharging black ink is greater than the number of nozzles for discharging inks of other colors, the use frequency of some nozzles among all the nozzles for discharging the black ink is higher, so that image unevenness may arise when transferred to the black printing. The present invention relates to an ink jet recording method and an ink jet recording apparatus in which the image unevenness often seen in the black printing involving the use of more nozzles than other colors, and the blur of recorded image seen in the image having black images adjacent color images located are reduced.
    Type: Grant
    Filed: October 29, 1993
    Date of Patent: July 11, 2000
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toshiharu Inui, Jiro Moriyama, Hiroaki Kitazawa, Yasuhiro Numata, Takayoshi Ishino, Isao Ebisawa, Hisao Yaegashi
  • Patent number: 5835115
    Abstract: It is an object of the present invention to provide an image recording method and apparatus for performing stable image recording with a minimum power consumption. An AND gate performs an AND operation of a clock signal and a printing signal of binary logic in units of pixels, and a transistor is driven. At the driving timing, an induced electromotive force is generated in a choke coil having one end connected to a power supply line. A capacitor is charged with a forward current through a diode. On the other hand, the signal is shift-input to a shift register and latched by a latch circuit in synchronism with a signal. An output from the latch circuit is supplied to a gate circuit in synchronism with a signal to drive a transistor. A current from the capacitor is input to the transistor to heat a heater.
    Type: Grant
    Filed: August 28, 1995
    Date of Patent: November 10, 1998
    Assignee: Canon Kabushiki Kaisha
    Inventor: Hiroaki Kitazawa
  • Patent number: 5717443
    Abstract: This invention relates to an ink jet recording apparatus with a support member for supporting an ink jet recording head for effecting recording by ink discharge onto a recording material, comprising: recording material transport means for transporting the recording material from a feeding position through a recording position to a discharge position; and recovery means for maintaining and restoring the ink discharge state of said ink jet recording head. The driving source for driving the recording material transport means or support member is also used for driving the recovery means, and, when the power supply to the apparatus is turned on, the initial operations of at least the recording material transport means and the recovery means are conducted utilizing a single sensor.
    Type: Grant
    Filed: December 13, 1996
    Date of Patent: February 10, 1998
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yasuhiro Numata, Haruo Uchida, Souhei Tanaka, Noribumi Koitabashi, Hiroaki Kitazawa, Hiromitsu Hirabayashi, Hiroshi Tajika, Hitoshi Sugimoto