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).
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Publication number: 20240400855Abstract: 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: ApplicationFiled: September 29, 2022Publication date: December 5, 2024Applicant: TAIYO HOLDINGS CO., LTD.Inventors: Satsuki OZAWA, Kazuya SATO, Mariko SHIMAMIYA, Yasuaki ARAI, Chika TAKAHASHI
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Publication number: 20240189859Abstract: 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: ApplicationFiled: March 29, 2022Publication date: June 13, 2024Applicant: TAIYO HOLDINGS CO., LTD.Inventors: Kousuke NAKAJIMA, Chika TAKAHASHI, Yasuyo KANAZAWA, Tomotaka NOGUCHI
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Publication number: 20240182463Abstract: 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: ApplicationFiled: August 4, 2023Publication date: June 6, 2024Applicant: Shionogi & Co., Ltd.Inventors: Chika TAKAHASHI, Hidenori MIKAMIYAMA, Toshiyuki AKIYAMA, Kenji TOMITA, Yoshiyuki TAODA, Makoto KAWAI, Kosuke ANAN, Masayoshi MIYAGAWA, Naoyuki SUZUKI
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Publication number: 20200339565Abstract: 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: ApplicationFiled: November 15, 2019Publication date: October 29, 2020Applicant: Shionogi & Co., Ltd.Inventors: Chika TAKAHASHI, Hidenori MIKAMIYAMA, Toshiyuki AKIYAMA, Kenji TOMITA, Yoshiyuki TAODA, Makoto KAWAI, Kosuke ANAN, Masayoshi MIYAGAWA, Naoyuki SUZUKI
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Publication number: 20190248785Abstract: 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: ApplicationFiled: November 19, 2018Publication date: August 15, 2019Applicant: Shionogi & Co., Ltd.Inventors: Chika TAKAHASHI, Hidenori MIKAMIYAMA, Toshiyuki AKIYAMA, Kenji TOMITA, Yoshiyuki TAODA, Makoto KAWAI, Kosuke ANAN, Masayoshi MIYAGAWA, Naoyuki SUZUKI
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Patent number: 10202379Abstract: 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: GrantFiled: August 14, 2017Date of Patent: February 12, 2019Assignee: SHIONOGI & CO., LTD.Inventors: Chika Takahashi, Hidenori Mikamiyama, Toshiyuki Akiyama, Kenji Tomita, Yoshiyuki Taoda, Makoto Kawai, Kosuke Anan, Masayoshi Miyagawa
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Publication number: 20170349587Abstract: 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: ApplicationFiled: August 14, 2017Publication date: December 7, 2017Applicant: Shionogi & Co., Ltd.Inventors: Chika Takahashi, Hidenori Mikamiyama, Toshiyuki Akiyama, Kenji Tomita, Yoshiyuki Taoda, Makoto Kawai, Kosuke Anan, Masayoshi Miyagawa
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Patent number: 9758515Abstract: 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: GrantFiled: December 5, 2014Date of Patent: September 12, 2017Assignee: SHIONOGI & CO., LTD.Inventors: Chika Takahashi, Hindenori Mikamiyama, Toshiyuki Akiyama, Kenji Tomita, Yoshiyuki Taoda, Makoto Kawai, Kosuke Anan, Masayoshi Miyagawa, Naoyuki Suzuki
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Publication number: 20150111854Abstract: 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: ApplicationFiled: December 5, 2014Publication date: April 23, 2015Inventors: Chika TAKAHASHI, Hindenori MIKAMIYAMA, Toshiyuki AKIYAMA, Kenji TOMITA, Yoshiyuki TAODA, Makoto KAWAI, Kosuke ANAN, Masayoshi MIYAGAWA, Naoyuki SUZUKI
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Patent number: 8987441Abstract: 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: GrantFiled: September 21, 2011Date of Patent: March 24, 2015Assignee: Shionogi & Co., Ltd.Inventors: Chika Takahashi, Hidenori Mikamiyama, Toshiyuki Akiyama, Kenji Tomita, Yoshiyuki Taoda, Makoto Kawai, Kosuke Anan, Masayoshi Miyagawa, Naoyuki Suzuki
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Publication number: 20130197219Abstract: 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: ApplicationFiled: September 21, 2011Publication date: August 1, 2013Inventors: Chika Takahashi, Hidenori Mikamiyama, Toshiyuki Akiyama, Kenji Tomita, Yoshiyuki Taoda, Makoto Kawai, Kosuke Anan, Masayoshi Miyagawa, Naoyuki Suzuki
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Patent number: 7560675Abstract: 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: GrantFiled: December 11, 2007Date of Patent: July 14, 2009Assignee: Olympus CorporationInventor: Chika Takahashi
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Publication number: 20080144170Abstract: 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: ApplicationFiled: December 11, 2007Publication date: June 19, 2008Applicant: Olympus CorporationInventor: Chika Takahashi
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Patent number: 6271692Abstract: 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: GrantFiled: January 28, 2000Date of Patent: August 7, 2001Assignee: Oki Electric Industry Co., Ltd.Inventors: Yoshio Iihoshi, Tsutomu Kato, Chika Takahashi