Patents by Inventor Sayuri Uehara

Sayuri Uehara 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: 10519117
    Abstract: The purpose of the present invention is to provide a method for producing 6-bromo-3-hydroxy-2-pyrazinecarboxamide in which the content ratio of impurities is reduced. This production method includes a step of obtaining 6-bromo-3-hydroxy-2-pyrazinecarboxamide crystal having diffraction angles expressed in degrees 2? of 5.5, 20.1, 23.7, 26.7, 27.5, and 28.1° and/or diffraction angles expressed in degrees 2? of 7.1, 21.4, 25.2, 25.7, 27.1, and 28.8° in powder X-ray diffraction.
    Type: Grant
    Filed: March 5, 2019
    Date of Patent: December 31, 2019
    Assignee: FUJIFILM Toyama Chemical Co., Ltd.
    Inventors: Tetsuro Uchida, Sayuri Uehara, Takayoshi Tsuzuki, Yusuke Okubo, Yuta Kobayashi, Yu Koseki
  • Publication number: 20190194146
    Abstract: The purpose of the present invention is to provide a method for producing 6-bromo-3-hydroxy-2-pyrazinecarboxamide in which the content ratio of impurities is reduced. This production method includes a step of obtaining 6-bromo-3-hydroxy-2-pyrazinecarboxamide crystal having diffraction angles expressed in degrees 2? of 5.5, 20.1, 23.7, 26.7, 27.5, and 28.1° and/or diffraction angles expressed in degrees 2? of 7.1, 21.4, 25.2, 25.7, 27.1, and 28.8° in powder X-ray diffraction.
    Type: Application
    Filed: March 5, 2019
    Publication date: June 27, 2019
    Applicant: FUJIFILM Toyama Chemical Co., Ltd.
    Inventors: Tetsuro UCHIDA, Sayuri Uehara, Takayoshi Tsuzuki, Yusuke Okubo, Yuta Kobayashi, Yu Koseki
  • Patent number: 10266501
    Abstract: The purpose of the present invention is to provide a method for producing 6-bromo-3-hydroxy-2-pyrazinecarboxamide in which the content ratio of impurities is reduced. This production method includes a step of obtaining 6-bromo-3-hydroxy-2-pyrazinecarboxamide crystal having diffraction angles expressed in degrees 2? of 5.5, 20.1, 23.7, 26.7, 27.5, and 28.1° and/or diffraction angles expressed in degrees 2? of 7.1, 21.4, 25.2, 25.7, 27.1, and 28.8° in powder X-ray diffraction.
    Type: Grant
    Filed: June 8, 2016
    Date of Patent: April 23, 2019
    Assignee: FUJIFILM Toyama Chemical Co., Ltd.
    Inventors: Tetsuro Uchida, Sayuri Uehara, Takayoshi Tsuzuki, Yusuke Okubo, Yuta Kobayashi, Yu Koseki
  • Publication number: 20180141920
    Abstract: The purpose of the present invention is to provide a method for producing 6-bromo-3-hydroxy-2-pyrazinecarboxamide in which the content ratio of impurities is reduced. This production method includes a step of obtaining 6-bromo-3-hydroxy-2-pyrazinecarboxamide crystal having diffraction angles expressed in degrees 20 of 5.5, 20.1, 23.7, 26.7, 27.5, and 28.1° and/or diffraction angles expressed in degrees 2? of 7.1, 21.4, 25.2, 25.7, 27.1, and 28.8° in powder X-ray diffraction.
    Type: Application
    Filed: June 8, 2016
    Publication date: May 24, 2018
    Applicant: TOYAMA CHEMICAL CO., LTD.
    Inventors: Tetsuro UCHIDA, Sayuri UEHARA, Takayoshi TSUZUKI, Yusuke OKUBO, Yuta KOBAYASHI, Yu KOSEKI
  • Publication number: 20150266831
    Abstract: A preparation replete with crystals of a sodium salt of 6-fluoro-3-hydroxy-2-pyrazine carboxamide has superior solubility, and is useful as a preparation for injection.
    Type: Application
    Filed: June 8, 2015
    Publication date: September 24, 2015
    Applicant: Toyama Chemical Co., Ltd.
    Inventors: Keiko TAKAKURA, Namika NAKAMATSU, Sakiko TAKESHIMA, Sayuri UEHARA
  • Patent number: 9096547
    Abstract: A preparation replete with crystals of a sodium salt of 6-fluoro-3-hydroxy-2-pyrazine carboxamide has superior solubility, and is useful as a preparation for injection.
    Type: Grant
    Filed: October 16, 2014
    Date of Patent: August 4, 2015
    Assignee: TOYAMA CHEMICAL CO., LTD.
    Inventors: Keiko Takakura, Namika Nakamatsu, Sakiko Takeshima, Sayuri Uehara
  • Publication number: 20150038713
    Abstract: A preparation replete with crystals of a sodium salt of 6-fluoro-3-hydroxy-2-pyrazine carboxamide has superior solubility, and is useful as a preparation for injection.
    Type: Application
    Filed: October 16, 2014
    Publication date: February 5, 2015
    Applicant: Toyama Chemical Co., Ltd.
    Inventors: Keiko TAKAKURA, Namika Nakamatsu, Sakiko Takeshima, Sayuri Uehara
  • Publication number: 20130274472
    Abstract: A preparation replete with crystals of a sodium salt of 6-fluoro-3-hydroxy-2-pyrazine carboxamide has superior solubility, and is useful as a preparation for injection.
    Type: Application
    Filed: September 29, 2011
    Publication date: October 17, 2013
    Applicant: TOYAMA CHEMICAL CO., LTD.
    Inventors: Keiko Takakura, Namika Nakamatsu, Sakiko Takeshima, Sayuri Uehara
  • Patent number: 8059875
    Abstract: Provided is an information processor which detects factors, in a video, influencing health, and which includes: an image input unit which receives a series of image data to process a plurality of consecutive still images constituting the video; a feature-quantity calculation unit which calculates a feature quantity of each still images on the basis of the image data; a conditional-expression storing unit which stores a conditional expression, for each factor, to determine whether each of the still images produces the factor on the basis of the corresponding feature quantity; a factor determination unit which determines, for each factor, whether each of the still images produces the factors on the basis of the corresponding feature quantity and the corresponding conditional expression; and an image-list display unit which displays, for each factor, a list of information indicating the still images determined to produce the factor.
    Type: Grant
    Filed: November 9, 2007
    Date of Patent: November 15, 2011
    Assignee: Hitachi Consulting Co., Ltd.
    Inventors: Sayuri Uehara, Yasuyuki Oki, Masaki Hirayama
  • Publication number: 20110002512
    Abstract: Provided is an information processor which detects factors, in a video, influencing health, and which includes: an image input unit which receives a series of image data to process a plurality of consecutive still images constituting the video; a feature-quantity calculation unit which calculates a feature quantity of each still images on the basis of the image data; a conditional-expression storing unit which stores a conditional expression, for each factor, to determine whether each of the still images produces the factor on the basis of the corresponding feature quantity; a factor determination unit which determines, for each factor, whether each of the still images produces the factors on the basis of the corresponding feature quantity and the corresponding conditional expression; and an image-list display unit which displays, for each factor, a list of information indicating the still images determined to produce the factor.
    Type: Application
    Filed: November 9, 2007
    Publication date: January 6, 2011
    Inventors: Sayuri UEHARA, Yasuyuki Oki, Masaki Hirayama
  • Patent number: 7700623
    Abstract: An arylamidine derivative represented by the general formula (wherein R1 represents optionally protected or substituted amidino; and R2 and R3 are the same or different and each represents hydrogen or halogeno) or a salt of the derivative. The derivative and salt have potent activity against fungi including ones having tolerance to azole type drugs and further have high safety and excellent properties in a repeated dose toxicity test. They are hence useful as an excellent antifungal.
    Type: Grant
    Filed: June 28, 2005
    Date of Patent: April 20, 2010
    Assignee: Toyama Chemical Co., Ltd.
    Inventors: Kazuya Hayashi, Kazuto Kunitani, Sayuri Uehara, Teiichi Morita
  • Publication number: 20080319016
    Abstract: An arylamidine derivative represented by the general formula (wherein R1 represents optionally protected or substituted amidino; and R2 and R3 are the same or different and each represents hydrogen or halogeno) or a salt of the derivative. The derivative and salt have potent activity against fungi including ones having tolerance to azole type drugs and further have high safety and excellent properties in a repeated dose toxicity test. They are hence useful as an excellent antifungal.
    Type: Application
    Filed: June 28, 2005
    Publication date: December 25, 2008
    Applicant: Toyama Chemical Co., Ltd.
    Inventors: Kazuya Hayashi, Kazuto Kunitani, Sayuri Uehara, Teiichi Morita
  • Publication number: 20040235761
    Abstract: 1
    Type: Application
    Filed: February 10, 2004
    Publication date: November 25, 2004
    Inventors: Yousuke Furuta, Hiroyuki Egawa, Kazumi Takahashi, Yasuhiro Takahashi, Sayuri Uehara, Makoto Murakami
  • Publication number: 20030130213
    Abstract: Pyrazine derivatives represented by general formula [1]: 1
    Type: Application
    Filed: August 16, 2002
    Publication date: July 10, 2003
    Applicant: Toyama Chemical Co., Ltd.
    Inventors: Hiroyuki Egawa, Yousuke Furuta, Jun Sugita, Sayuri Uehara, Shoichi Hamamoto, Kenji Yonezawa