Patents by Inventor Chika Takahashi

Chika Takahashi 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: 20240400855
    Abstract: Provided is a thermosetting resin composition whose semi-cured state and fully cured state can be visually distinguished. The thermosetting resin composition according to the invention is a thermosetting resin composition including a thermosetting resin, a curing agent, and a filler, in which when an L* value measured using an L*a*b* color system before curing the thermosetting resin composition is defined as L1, an L* value measured using the L*a*b* color system for a semi-cured product obtained by thermally curing the thermosetting resin composition at 80° C. for 60 minutes is defined as L2, and an L* value measured using the L*a*b* color system for a fully cured product obtained by further thermally curing the semi-cured product at 150° C. for 60 minutes is defined as L3, the thermosetting resin composition satisfies the following Formula 1: ( L ? 2 - L ? 3 ) / ( L ? 1 - L ? 3 ) ? 0.7 .
    Type: Application
    Filed: September 29, 2022
    Publication date: December 5, 2024
    Applicant: TAIYO HOLDINGS CO., LTD.
    Inventors: Satsuki OZAWA, Kazuya SATO, Mariko SHIMAMIYA, Yasuaki ARAI, Chika TAKAHASHI
  • Publication number: 20240189859
    Abstract: An ink-filled cartridge includes a cartridge, including a cylindrical syringe and a plunger, and an ink therein. The ink has a viscosity at 25° C. of from 50 to 2,000 dPa·s. The ink contains one or more air bubbles having a diameter of 0.1 mm or more. A total volume A of air bubbles in a portion of the syringe corresponding to a distance from a lower end of a discharge nozzle of the cylindrical syringe to a mid-point between the lower end and the plunger, and a total volume B of air bubbles in a portion of the syringe corresponding to a distance from the mid-point to the plunger, satisfy: 0?A/B<1.0.
    Type: Application
    Filed: March 29, 2022
    Publication date: June 13, 2024
    Applicant: TAIYO HOLDINGS CO., LTD.
    Inventors: Kousuke NAKAJIMA, Chika TAKAHASHI, Yasuyo KANAZAWA, Tomotaka NOGUCHI
  • Publication number: 20240182463
    Abstract: The present invention provides a compound having antiviral effects, particularly having growth inhibitory activity on influenza viruses, a preferred example of the compound being a substituted 3-hydroxy-4-pyridone derivative prodrug having cap-dependent endonuclease inhibitory activity.
    Type: Application
    Filed: August 4, 2023
    Publication date: June 6, 2024
    Applicant: Shionogi & Co., Ltd.
    Inventors: Chika TAKAHASHI, Hidenori MIKAMIYAMA, Toshiyuki AKIYAMA, Kenji TOMITA, Yoshiyuki TAODA, Makoto KAWAI, Kosuke ANAN, Masayoshi MIYAGAWA, Naoyuki SUZUKI
  • Publication number: 20200339565
    Abstract: The present invention provides a compound having antiviral effects, particularly having growth inhibitory activity on influenza viruses, a preferred example of the compound being a substituted 3-hydroxy-4-pyridone derivative prodrug having cap-dependent endonuclease inhibitory activity.
    Type: Application
    Filed: November 15, 2019
    Publication date: October 29, 2020
    Applicant: Shionogi & Co., Ltd.
    Inventors: Chika TAKAHASHI, Hidenori MIKAMIYAMA, Toshiyuki AKIYAMA, Kenji TOMITA, Yoshiyuki TAODA, Makoto KAWAI, Kosuke ANAN, Masayoshi MIYAGAWA, Naoyuki SUZUKI
  • Publication number: 20190248785
    Abstract: The present invention provides a compound having antiviral effects, particularly having growth inhibitory activity on influenza viruses, a preferred example of the compound being a substituted 3-hydroxy-4-pyridone derivative prodrug having cap-dependent endonuclease inhibitory activity.
    Type: Application
    Filed: November 19, 2018
    Publication date: August 15, 2019
    Applicant: Shionogi & Co., Ltd.
    Inventors: Chika TAKAHASHI, Hidenori MIKAMIYAMA, Toshiyuki AKIYAMA, Kenji TOMITA, Yoshiyuki TAODA, Makoto KAWAI, Kosuke ANAN, Masayoshi MIYAGAWA, Naoyuki SUZUKI
  • Patent number: 10202379
    Abstract: The present invention provides a compound having antiviral effects, particularly having growth inhibitory activity on influenza viruses, a preferred example of the compound being a substituted 3-hydroxy-4-pyridone derivative prodrug having cap-dependent endonuclease inhibitory activity.
    Type: Grant
    Filed: August 14, 2017
    Date of Patent: February 12, 2019
    Assignee: SHIONOGI & CO., LTD.
    Inventors: Chika Takahashi, Hidenori Mikamiyama, Toshiyuki Akiyama, Kenji Tomita, Yoshiyuki Taoda, Makoto Kawai, Kosuke Anan, Masayoshi Miyagawa
  • Publication number: 20170349587
    Abstract: The present invention provides a compound having antiviral effects, particularly having growth inhibitory activity on influenza viruses, a preferred example of the compound being a substituted 3-hydroxy-4-pyridone derivative prodrug having cap-dependent endonuclease inhibitory activity.
    Type: Application
    Filed: August 14, 2017
    Publication date: December 7, 2017
    Applicant: Shionogi & Co., Ltd.
    Inventors: Chika Takahashi, Hidenori Mikamiyama, Toshiyuki Akiyama, Kenji Tomita, Yoshiyuki Taoda, Makoto Kawai, Kosuke Anan, Masayoshi Miyagawa
  • Patent number: 9758515
    Abstract: The present invention provides a compound having antiviral effects, particularly having growth inhibitory activity on influenza viruses, a preferred example of the compound being a substituted 3-hydroxy-4-pyridone derivative prodrug having cap-dependent endonuclease inhibitory activity.
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: September 12, 2017
    Assignee: SHIONOGI & CO., LTD.
    Inventors: Chika Takahashi, Hindenori Mikamiyama, Toshiyuki Akiyama, Kenji Tomita, Yoshiyuki Taoda, Makoto Kawai, Kosuke Anan, Masayoshi Miyagawa, Naoyuki Suzuki
  • Publication number: 20150111854
    Abstract: The present invention provides a compound having antiviral effects, particularly having growth inhibitory activity on influenza viruses, a preferred example of the compound being a substituted 3-hydroxy-4-pyridone derivative prodrug having cap-dependent endonuclease inhibitory activity.
    Type: Application
    Filed: December 5, 2014
    Publication date: April 23, 2015
    Inventors: Chika TAKAHASHI, Hindenori MIKAMIYAMA, Toshiyuki AKIYAMA, Kenji TOMITA, Yoshiyuki TAODA, Makoto KAWAI, Kosuke ANAN, Masayoshi MIYAGAWA, Naoyuki SUZUKI
  • Patent number: 8987441
    Abstract: The present invention provides a compound having antiviral effects, particularly having growth inhibitory activity on influenza viruses, a preferred example of the compound being a substituted 3-hydroxy-4-pyridone derivative prodrug having cap-dependent endonuclease inhibitory activity.
    Type: Grant
    Filed: September 21, 2011
    Date of Patent: March 24, 2015
    Assignee: Shionogi & Co., Ltd.
    Inventors: Chika Takahashi, Hidenori Mikamiyama, Toshiyuki Akiyama, Kenji Tomita, Yoshiyuki Taoda, Makoto Kawai, Kosuke Anan, Masayoshi Miyagawa, Naoyuki Suzuki
  • Publication number: 20130197219
    Abstract: The present invention provides a compound having antiviral effects, particularly having growth inhibitory activity on influenza viruses, a preferred example of the compound being a substituted 3-hydroxy-4-pyridone derivative prodrug having cap-dependent endonuclease inhibitory activity.
    Type: Application
    Filed: September 21, 2011
    Publication date: August 1, 2013
    Inventors: Chika Takahashi, Hidenori Mikamiyama, Toshiyuki Akiyama, Kenji Tomita, Yoshiyuki Taoda, Makoto Kawai, Kosuke Anan, Masayoshi Miyagawa, Naoyuki Suzuki
  • Patent number: 7560675
    Abstract: Various types of optical members can be electrically inserted/extracted to/from an optical path. The state of the insertion/extraction or the state of opening/closing is detected by a sensor. An operating unit obtains various types of instructions. A controlling unit comprises a memory. The memory records a plurality of states of the insertion/extraction of an optical member in/from an optical path or the state of opening/closing, which is detected by the sensor, as an observation state. A controlling circuit switches an observation state to any of observation states recorded in the memory by controlling the insertion/extraction or the opening/closing each time the operating unit obtains an instruction to request the setting of an observation state.
    Type: Grant
    Filed: December 11, 2007
    Date of Patent: July 14, 2009
    Assignee: Olympus Corporation
    Inventor: Chika Takahashi
  • Publication number: 20080144170
    Abstract: Various types of optical members can be electrically inserted/extracted to/from an optical path. The state of the insertion/extraction or the state of opening/closing is detected by a sensor. An operating unit obtains various types of instructions. A controlling unit comprises a memory. The memory records a plurality of states of the insertion/extraction of an optical member in/from an optical path or the state of opening/closing, which is detected by the sensor, as an observation state. A controlling circuit switches an observation state to any of observation states recorded in the memory by controlling the insertion/extraction or the opening/closing each time the operating unit obtains an instruction to request the setting of an observation state.
    Type: Application
    Filed: December 11, 2007
    Publication date: June 19, 2008
    Applicant: Olympus Corporation
    Inventor: Chika Takahashi
  • Patent number: 6271692
    Abstract: An internal circuit of a semiconductor integrated circuit includes an inverter inputted with an input signal and is supplied with a power supply voltage during normal operation. The input terminal and the internal circuit are connected by a signal line having a resistor. A voltage determining circuit for determining whether a voltage of an input signal inputted to the input terminal is a signal voltage for use in the normal operation of the internal circuit or a high voltage for setting up an internal circuit test mode is connected to a node of the signal line. P-type MOS transistors are connected in series across a node of the signal line and the power supply voltage. The source of a first one of the P-type MOS transistors is connected to the power supply voltage together with the gate electrode and the substrate, and the drain is connected to the drain of the other P-type MOS transistor.
    Type: Grant
    Filed: January 28, 2000
    Date of Patent: August 7, 2001
    Assignee: Oki Electric Industry Co., Ltd.
    Inventors: Yoshio Iihoshi, Tsutomu Kato, Chika Takahashi