Patents by Inventor Masayuki Igarashi

Masayuki Igarashi 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: 11135234
    Abstract: A compound represented by the following general formula (I) or a pharmaceutically acceptable salt or solvate thereof, and a pharmaceutical composition thereof, and the use thereof to prevent or treat infectious diseases and a method to prevent or treat infectious diseases using those regimen are disclosed. The compound represented by formula (I) has an antibacterial activity against both gram-positive and gram-negative bacteria, and is useful in the prevention or treatment of infectious diseases caused by these bacteria.
    Type: Grant
    Filed: January 22, 2020
    Date of Patent: October 5, 2021
    Assignees: MICROBIAL CHEMISTRY RESEARCH FOUNDATION, MEIJI SEIKA PHARMA CO., LTD.
    Inventors: Yoshiaki Takahashi, Eijiro Umemura, Takashi Ida, Masayuki Igarashi
  • Publication number: 20210286013
    Abstract: A screening method according to the present invention is a screening method for screening a sheet-type battery, including a charging/discharging waveform acquisition step of acquiring a charging/discharging waveform of the sheet-type battery by charging and discharging the sheet-type battery, a step of evaluating a variation in discharging voltage over time during discharging in the sheet-type battery based on the charging/discharging waveform, a step of evaluating a variation in charging voltage over time during charging in the sheet-type battery based on the charging/discharging waveform, a step of evaluating charging efficiency of the sheet-type battery based on the charging/discharging waveform, a step of evaluating a current value at an end of the charging the sheet-type battery based on the charging/discharging waveform, and a screening step of screening the sheet-type battery based on evaluation results of the steps.
    Type: Application
    Filed: November 21, 2017
    Publication date: September 16, 2021
    Inventors: Masami SANO, Isao UEKI, Masayuki IGARASHI
  • Publication number: 20200155582
    Abstract: A compound represented by the following general formula (I) or a pharmaceutically acceptable salt or solvate thereof, and a pharmaceutical composition thereof, and the use thereof to prevent or treat infectious diseases and a method to prevent or treat infectious diseases using those regimen are disclosed. The compound represented by formula (I) has an antibacterial activity against both gram-positive and gram-negative bacteria, and is useful in the prevention or treatment of infectious diseases caused by these bacteria.
    Type: Application
    Filed: January 22, 2020
    Publication date: May 21, 2020
    Applicants: MICROBIAL CHEMISTRY RESEARCH FOUNDATION, MEIJI SEIKA PHARMA CO., LTD.
    Inventors: Yoshiaki TAKAHASHI, Eijiro UMEMURA, Takashi IDA, Masayuki IGARASHI
  • Patent number: 10617704
    Abstract: A compound represented by the following general formula (I) or a pharmaceutically acceptable salt or solvate thereof, and a pharmaceutical composition thereof, and the use thereof to prevent or treat infectious diseases and a method to prevent or treat infectious diseases using those regimen are disclosed. The compound represented by formula (I) has an antibacterial activity against both gram-positive and gram-negative bacteria, and is useful in the prevention or treatment of infectious diseases caused by these bacteria.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: April 14, 2020
    Assignees: MICROBIAL CHEMISTRY RESEARCH FOUNDATION, MEIJI SEIKA PHARMA CO., LTD.
    Inventors: Yoshiaki Takahashi, Eijiro Umemura, Takashi Ida, Masayuki Igarashi
  • Patent number: 10576094
    Abstract: A compound represented by the following general formula (I) or a pharmaceutically acceptable salt or solvate thereof, and a pharmaceutical composition thereof, and the use thereof to prevent or treat infectious diseases and a method to prevent or treat infectious diseases using those regimen are disclosed. The compound represented by formula (I) has an antibacterial activity against both gram-positive and gram-negative bacteria, and is useful in the prevention or treatment of infectious diseases caused by these bacteria.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: March 3, 2020
    Assignees: MICROBIAL CHEMISTRY RESEARCH FOUNDATION, MEIJI SEIKA PHARMA CO., LTD.
    Inventors: Yoshiaki Takahashi, Eijiro Umemura, Takashi Ida, Masayuki Igarashi
  • Publication number: 20190334155
    Abstract: A laminated battery according to the present invention is a secondary battery where a first sheet battery, a second sheet battery, a third sheet battery, and a fourth sheet battery are laminated in this order. When an X-Y plane is viewed from above, a tab part of the first sheet battery is placed projecting outward of the sheet battery, and a tab part of the fourth sheet battery is placed projecting outward of the third sheet battery. A second electrode on a surface of the first tab part and a second electrode on a surface of the fourth tab part tab part, are placed face-to-face with each other and connected.
    Type: Application
    Filed: November 21, 2017
    Publication date: October 31, 2019
    Inventors: Masami SANO, Isao UEKI, Masayuki IGARASHI
  • Patent number: 10202347
    Abstract: The present application provides novel compounds having anti-cancer or anti-Helicobacter pylori activity, pharmaceutical compositions and method for producing and using the novel compound.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: February 12, 2019
    Assignee: MICROBIAL CHEMISTRY RESEARCH FOUNDATION
    Inventors: Manabu Kawada, Hikaru Abe, Takumi Watanabe, Hiroyuki Inoue, Shun-ichi Ohba, Chigusa Hayashi, Masayuki Igarashi
  • Patent number: 10160725
    Abstract: The present application provides novel compounds having anti-cancer or anti-Helicobacter pylori activity, pharmaceutical compositions and method for producing and using the novel compound.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: December 25, 2018
    Assignee: MICROBIAL CHEMISTRY RESEARCH FOUNDATION
    Inventors: Manabu Kawada, Hikaru Abe, Takumi Watanabe, Hiroyuki Inoue, Shun-ichi Ohba, Chigusa Hayashi, Masayuki Igarashi
  • Publication number: 20180214470
    Abstract: A compound represented by the following general formula (I) or a pharmaceutically acceptable salt or solvate thereof, and a pharmaceutical composition thereof, and the use thereof to prevent or treat infectious diseases and a method to prevent or treat infectious diseases using those regimen are disclosed. The compound represented by formula (I) has an antibacterial activity against both gram-positive and gram-negative bacteria, and is useful in the prevention or treatment of infectious diseases caused by these bacteria.
    Type: Application
    Filed: July 29, 2016
    Publication date: August 2, 2018
    Applicants: MICROBIAL CHEMISTRY RESEARCH FOUNDATION, MEIJI SEIKA PHARMA CO., LTD.
    Inventors: Yoshiaki TAKAHASHI, Eijiro UMEMURA, Takashi IDA, Masayuki IGARASHI
  • Publication number: 20180093954
    Abstract: The present application provides novel compounds having anti-cancer or anti-Helicobacter pylori activity, pharmaceutical compositions and method for producing and using the novel compound.
    Type: Application
    Filed: November 17, 2017
    Publication date: April 5, 2018
    Inventors: Manabu KAWADA, Hikaru ABE, Takumi WATANABE, Hiroyuki INOUE, Shun-ichi OHBA, Chigusa HAYASHI, Masayuki IGARASHI
  • Patent number: 9850211
    Abstract: A compound expressed by any one of Structural Formulas (1) to (13), a method for producing the same, and a compound-containing composition, an anti-cancer agent, and an anti-Helicobacter pylori agent each containing the above compound.
    Type: Grant
    Filed: March 1, 2017
    Date of Patent: December 26, 2017
    Assignee: MICROBIAL CHEMISTRY RESEARCH FOUNDATION
    Inventors: Manabu Kawada, Hikaru Abe, Takumi Watanabe, Hiroyuki Inoue, Shun-ichi Ohba, Chigusa Hayashi, Masayuki Igarashi
  • Patent number: 9839648
    Abstract: A drug combination against acid-fast bacillus, including: an inhibitor for WecA or an ortholog thereof; and at least one of an inhibitor for MurX or an ortholog thereof and an RNA synthesis inhibitor, wherein the inhibitor for WecA or an ortholog thereof is used in combination with the at least one of an inhibitor for MurX or an ortholog thereof and an RNA synthesis inhibitor; a screening method for a drug against acid-fast bacillus; and an inhibitor for WecA or an ortholog thereof.
    Type: Grant
    Filed: June 3, 2014
    Date of Patent: December 12, 2017
    Assignees: MICROBIAL CHEMISTRY RESEARCH FOUNDATION, COLORADO STATE UNIVERSITY RESEARCH FOUNDATION
    Inventors: Yoshimasa Ishizaki, Masayuki Igarashi, Patrick Joseph Brennan, Dean Calvin Crick
  • Publication number: 20170174631
    Abstract: A compound expressed by any one of Structural Formulas (1) to (13), a method for producing the same, and a compound-containing composition, an anti-cancer agent, and an anti-Helicobacter pylori agent each containing the above compound.
    Type: Application
    Filed: March 1, 2017
    Publication date: June 22, 2017
    Inventors: Manabu KAWADA, Hikaru ABE, Takumi WATANABE, Hiroyuki INOUE, Shun-ichi OHBA, Chigusa HAYASHI, Masayuki IGARASHI
  • Patent number: 9617217
    Abstract: The present application provides novel compounds having anti-cancer or anti-Helicobacter pylori activity, pharmaceutical compositions and method for producing and using the novel compound.
    Type: Grant
    Filed: February 24, 2014
    Date of Patent: April 11, 2017
    Assignee: MICROBIAL CHEMISTRY RESEARCH FOUNDATION
    Inventors: Manabu Kawada, Hikaru Abe, Takumi Watanabe, Hiroyuki Inoue, Shun-ichi Ohba, Chigusa Hayashi, Masayuki Igarashi
  • Publication number: 20160362437
    Abstract: A method for producing a compound represented by Structural Formula (1), including: introducing benzyl group into trehalose to produce at least one of compound represented by Structural Formula 4a and compound represented by Structural Formula 4a?; subjecting at least one of the Structural Formula 4a compound and the Structural Formula 4a? compound to prenylation to produce at least one of compound represented by Structural Formula 3a and compound represented by Structural Formula 3a?; subjecting at least one of the Structural Formula 3a compound and the Structural Formula 3a? compound to sharpless asymmetric dihydroxylation to produce at least one of compound represented by Structural Formula 2a and compound represented by Structural Formula 2a?; and allowing at least one of the Structural Formula 2a compound and the Structural Formula 2a? compound to react with hydrogen in the presence of palladium catalyst to produce the compound represented by Structural Formula (1).
    Type: Application
    Filed: June 1, 2016
    Publication date: December 15, 2016
    Inventors: Takumi WATANABE, Shunichi WADA, Masayuki IGARASHI, Ming ZHANG
  • Patent number: 9512075
    Abstract: The present invention provides compounds belonging to 3-acyloxyindole compounds or 3-acyl-4-hydroxycoumarin compounds, a tautomer or geometric isomer thereof, or a salt thereof and methods for producing the same, which compounds are useful as antibacterial agent and as therapeutic drugs against infectious diseases.
    Type: Grant
    Filed: October 17, 2013
    Date of Patent: December 6, 2016
    Assignees: OKAYAMA UNIVERSITY, MICROBIAL CHEMISTRY RESEARCH FOUNDATION, KINKI UNIVERSITY
    Inventors: Teruhiko Ishikawa, Tatsuya Kitaoka, Shyota Katayama, Yoshikuni Itoh, Ryutaro Utsumi, Masayuki Igarashi
  • Patent number: 9470434
    Abstract: Provided is a multiplex pipe and a system for recovering steam from a geothermal well, which are capable of solving all of the various problems with a neutralization pipe prepared by painting or the like of an alkali-resistant coating on the inner face of an acid-resistant single pipe. A multiplex pipe 10 that is configured to recover steam from a geothermal well GT, includes: a casing pipe 1 located outside; and a duplex pipe 4 that is slidable relative to the casing pipe 1 in the casing pipe 1, and has a first gap 5 with an inner face of the casing pipe 1, the duplex pipe including an outer pipe 2 having acid-resistance and an inner pipe 3 having alkali-resistance, the outer pipe 2 and the inner pipe 3 defining a second gap 6 therebetween.
    Type: Grant
    Filed: May 28, 2013
    Date of Patent: October 18, 2016
    Assignee: Nippon Steel & Sumikin Engineering Co., Ltd.
    Inventors: Keita Suzumura, Masayuki Igarashi, Akihiro Itoh, Akira Kawakami, Hideki Fujii, Teruhiko Hayashi, Kazuhiro Takahashi
  • Publication number: 20160129035
    Abstract: A drug combination against acid-fast bacillus, including: an inhibitor for WecA or an ortholog thereof; and at least one of an inhibitor for MurX or an ortholog thereof and an RNA synthesis inhibitor, wherein the inhibitor for WecA or an ortholog thereof is used in combination with the at least one of an inhibitor for MurX or an ortholog thereof and an RNA synthesis inhibitor; a screening method for a drug against acid-fast bacillus; and an inhibitor for WecA or an ortholog thereof.
    Type: Application
    Filed: June 3, 2014
    Publication date: May 12, 2016
    Inventors: Yoshimasa ISHIZAKI, Masayuki IGARASHI, Patrick Joseph BRENNAN, Dean Calvin CRICK
  • Publication number: 20160009651
    Abstract: The present application provides novel compounds having anti-cancer or anti-Helicobacter pylori activity, pharmaceutical compositions and method for producing and using the novel compound.
    Type: Application
    Filed: February 24, 2014
    Publication date: January 14, 2016
    Inventors: Manabu KAWADA, Hikaru ABE, Takumi WATANABE, Hiroyuki INOUE, Shun-ichi OHBA, Chigusa HAYASHI, Masayuki IGARASHI
  • Publication number: 20160001012
    Abstract: Slightly above a rupture-intended line, a peripheral surface of a projection portion of a stopper cap is pushed in a direction from an outer side to an inner side (in an arrow direction). The stopper cap is pushed over on the principle of leverage in an oblique direction with, as a fulcrum P, the side (the back side) opposite in a circumferential direction to the side (the near side) at which a pushing force PW acts, so that an intermittent portion is ruptured due to bending of the flexible stopper cap. Then, a residual area remains at the syringe side, and a separation area is separated together with the stopper cap from the syringe to perform unsealing. Thus, a syringe label which allows for easy unsealing along the intermittent portion and with which an unsealed state is easily confirmed, and a drug solution-filled syringe using the label, are provided.
    Type: Application
    Filed: February 27, 2014
    Publication date: January 7, 2016
    Inventors: Masayuki Igarashi, Chikara Komuro, Keisuke Takeyama