Patents by Inventor Yuki Tachibana
Yuki Tachibana 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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Patent number: 11884756Abstract: A method of producing modified vinyl alcohol-based polymer particles, includes mixing vinyl alcohol-based polymer particles with a mixed medium containing unsaturated carboxylic acid, an acid catalyst, and water, wherein, by mixing the vinyl alcohol-based polymer particles with the mixed medium, the vinyl alcohol-based polymer particles are reacted with the unsaturated carboxylic acid to obtain modified vinyl alcohol-based polymer particles containing a vinyl ester unit represented by a formula (2) below, having a vinyl alcohol unit content based on the total constitutional units of 60 mol % or more and less than 95 mol %, and having an average particle diameter from 50 to 2000 ?m. The production method is capable of controlling the particle shape and does not cause the problem of the residual sulfur content, and is further convenient and economically advantageous.Type: GrantFiled: December 26, 2019Date of Patent: January 30, 2024Assignee: KURARAY CO., LTD.Inventors: Yuki Tachibana, Yusuke Amano, Yuki Shimizu, Kazuhiko Maekawa
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Patent number: 11814368Abstract: The present invention provides a compound exhibiting coronavirus 3 CL protease inhibitory activity or a pharmaceutically acceptable salt thereof, and a pharmaceutical composition comprising the same. Furthermore, the present invention provides a crystalline form useful as an active pharmaceutical ingredient, and a pharmaceutical composition comprising the same. A compound represented by Formula: or a pharmaceutically acceptable salt thereof.Type: GrantFiled: April 29, 2022Date of Patent: November 14, 2023Assignees: SHIONOGI & CO., LTD., NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITYInventors: Yuki Tachibana, Shota Uehara, Yuto Unoh, Kenji Nakahara, Yoshiyuki Taoda, Yukiko Yamatsu, Shigeru Ando, Michihito Sasaki
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Publication number: 20230212154Abstract: The present invention provides a compound exhibiting coronavirus 3CL protease inhibitory activity or a pharmaceutically acceptable salt thereof, and a pharmaceutical composition comprising the same. Furthermore, the present invention provides a crystalline form useful as an active pharmaceutical ingredient, and a pharmaceutical composition comprising the same. A compound represented by Formula: , or a pharmaceutically acceptable salt thereof.Type: ApplicationFiled: April 29, 2022Publication date: July 6, 2023Applicants: Shionogi & Co., Ltd., NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITYInventors: Yuki TACHIBANA, Shota UEHARA, Yuto UNOH, Kenji NAKAHARA, Yoshiyuki TAODA, Yukiko YAMATSU, Shigeru ANDO, Michihito SASAKI
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Patent number: 11643781Abstract: Release paper base paper includes a substrate; and a coating agent containing a modified polyvinyl alcohol (A) and sodium acetate, the substrate coated with the coating agent, wherein the modified polyvinyl alcohol (A) has 0.005 mol % or more and less than 10 mol % of double bonds derived from unsaturated carboxylic acid or a derivative thereof (B) in side chains, has 1.4 mol % or more and 2.0 mol % or less of 1,2-glycol bond, units, and is water soluble, and a content of the sodium acetate relative to the modified polyvinyl alcohol (A) is 0.01 mass % or more and 10 mass % or less. The release paper base paper of the present invention is excellent in sealing properties for silicone. Use of the release paper base paper allows acceleration of curing of silicone in a release layer and improvement in adhesion between the substrate and the release layer.Type: GrantFiled: March 29, 2018Date of Patent: May 9, 2023Assignee: KURARAY CO., LTD.Inventors: Keisuke Morikawa, Taeko Kaharu, Tadahito Fukuhara, Yuki Tachibana
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Publication number: 20230128162Abstract: The present invention provides a compound exhibiting coronavirus 3CL protease inhibitory activity or a pharmaceutically acceptable salt thereof, and a pharmaceutical composition comprising the same. Furthermore, the present invention provides a crystalline form useful as an active pharmaceutical ingredient, and a pharmaceutical composition comprising the same. A compound represented by Formula (I): wherein Y is N or the like; R1 is substituted or unsubstituted aromatic heterocyclyl or the like; R2 is substituted or unsubstituted aromatic carbocyclyl or the like; R3 is substituted or unsubstituted aromatic heterocyclyl or the like; —X— is —NH— or the like; m is 1 or the like; R5a is each independently a hydrogen atom or the like; R5b is each independently a hydrogen atom or the like; n is 1 or the like; R4a is each independently a hydrogen atom or the like; and R4b is each independently a hydrogen atom or the like, or a pharmaceutically acceptable salt thereof.Type: ApplicationFiled: February 17, 2022Publication date: April 27, 2023Applicants: Shionogi & Co., Ltd., NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITYInventors: Yuki TACHIBANA, Shota UEHARA, Yuto UNOH, Kenji NAKAHARA, Yoshiyuki TAODA, Koji KASAMATSU, Yukiko YAMATSU, Shigeru ANDO, Atsuhiro IIMURO, Takahiro SUTO, Michihito SASAKI
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Patent number: 11485811Abstract: The invention relates to particles with an average particle size of 300 to 1000 ?m, comprising a modified polyvinyl alcohol having vinyl alcohol units and structural units represented by formula (1), wherein a content of the vinyl alcohol units is 60 to 90 mol % based on the total structural units: wherein R1 represents a hydrogen atom or a methyl group. Thus, the present invention provides particles containing a modified polyvinyl alcohol having high water solubility and high affinity for a photosensitive monomer, which are highly photosensitive.Type: GrantFiled: February 18, 2019Date of Patent: November 1, 2022Assignee: KURARAY CO., LTD.Inventors: Yusuke Amano, Yuki Tachibana, Yuki Shimizu, Kazuhiko Maekawa
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Publication number: 20220220332Abstract: A coating composition may include a modified polyvinyl alcohol resin (A) having an ethylene unsaturated group in a side chain thereof. Examples of the modified polyvinyl alcohol resin (A) include those including a structural unit represented by formula (II) or (III). Substrates in various technical fields such as the resin molding field, automobile/railway/aircraft/ships-related field, medical product field, food field, agriculture/gardening field, electrical field, and construction field can be coated with such a coating composition.Type: ApplicationFiled: April 24, 2020Publication date: July 14, 2022Applicant: Kuraray Co., Ltd.Inventors: Yuki TACHIBANA, Yusuke AMANO, Kazuhiko MAEKAWA
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Patent number: 11342769Abstract: A control device comprises an acquisition unit that acquires a current to or from the battery and a voltage of a battery, a calculation unit that calculates an internal resistance of the battery based on the current and the voltage when the regenerative power generation is performed by a rotary electric machine, and a permission determination unit that determines whether to permit an automatic stop of an engine depending on whether restarting of the engine is enabled based on power running drive of the rotary electric machine. The calculation unit calculates a value of the internal resistance each time the regenerative power generation or the power running drive is performed before the engine enters an automatic stop state. The permission determination unit determines whether to permit the automatic stop based on a latest value of the internal resistance among values of the internal resistance calculated by the calculation unit.Type: GrantFiled: July 11, 2019Date of Patent: May 24, 2022Assignee: DENSO CORPORATIONInventors: Tetsuya Watanabe, Yuki Tachibana, Hiroki Fujii
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Publication number: 20220144977Abstract: A method of producing modified vinyl alcohol-based polymer particles, includes mixing vinyl alcohol-based polymer particles with a mixed medium containing unsaturated carboxylic acid, an acid catalyst, and water, wherein, by mixing the vinyl alcohol-based polymer particles with the mixed medium, the vinyl alcohol-based polymer particles are reacted with the unsaturated carboxylic acid to obtain modified vinyl alcohol-based polymer particles containing a vinyl ester unit represented by a formula (2) below, having a vinyl alcohol unit content based on the total constitutional units from 95 to 99.99 mol %, and having an average particle diameter from 50 to 2000 ?m. The production method does not cause the problem of the residual sulfur content derived from a liquid medium used for reaction and is also capable of modifying the vinyl alcohol-based polymer particles while maintaining the particle shape.Type: ApplicationFiled: March 12, 2020Publication date: May 12, 2022Applicant: KURARAY CO., LTD.Inventors: Yuki TACHIBANA, Yusuke AMANO, Yuki SHIMIZU, Kazuhiko MAEKAWA
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Publication number: 20220089793Abstract: A method of producing modified vinyl alcohol-based polymer particles, includes mixing vinyl alcohol-based polymer particles with a mixed medium containing unsaturated carboxylic acid, an acid catalyst, and water, wherein, by mixing the vinyl alcohol-based polymer particles with the mixed medium, the vinyl alcohol-based polymer particles are reacted with the unsaturated carboxylic acid to obtain modified vinyl alcohol-based polymer particles containing a vinyl ester unit represented by a formula (2) below, having a vinyl alcohol unit content based on the total constitutional units of 60 mol % or more and less than 95 mol %, and having an average particle diameter from 50 to 2000 ?m. The production method is capable of controlling the particle shape and does not cause the problem of the residual sulfur content, and is further convenient and economically advantageous.Type: ApplicationFiled: December 26, 2019Publication date: March 24, 2022Applicant: KURARAY CO., LTD.Inventors: Yuki TACHIBANA, Yusuke AMANO, Yuki SHIMIZU, Kazuhiko MAEKAWA
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Patent number: 11085967Abstract: A battery control device incorporated in a battery system including a battery pack with a plurality of unit cells connected in series and a temperature sensor attached to a predetermined unit cell of the plurality of unit cells. In the battery control device, an integrated amount calculator calculates an integrated amount of current flow since start of current conduction through the battery pack. A temperature acquirer acquires a temperature of the predetermined unit cell detected by the temperature sensor as a temperature of each of the plurality of unit cells on a condition that the integrated amount of current flow calculated by the integrated amount calculator is smaller than a predetermined value.Type: GrantFiled: April 8, 2019Date of Patent: August 10, 2021Assignee: DENSO CORPORATIONInventor: Yuki Tachibana
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Patent number: 11078309Abstract: There is provided a vinyl alcohol-based polymer having an olefin in side chain, comprising 0.001 to 10 mol % of a structural unit represented by Formula (1) based on the total amount of structural units, wherein the total carbon number of X, R1, R2, R3 and R4 is 2 or more. The vinyl alcohol-based polymer having an olefin in side chain has excellent storage stability, good solubility in water or an organic solvent even after thermal treatment, and excellent reactivity to high energy beam.Type: GrantFiled: June 5, 2018Date of Patent: August 3, 2021Assignee: KURARAY CO., LTD.Inventors: Yuki Tachibana, Yusuke Amano, Kazuhiko Maekawa
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Patent number: 11028200Abstract: The present invention relates to a vinyl alcohol-based polymer having an olefin in side chain, comprising a vinyl alcohol unit and a structural unit represented by Formula (I), wherein X represents a divalent saturated hydrocarbon group with 1 to 6 carbon atoms, optionally having a branched structure; Y represents a hydrogen atom or a saturated hydrocarbon group with 1 to 6 carbon atoms, optionally having a branched structure; and Z represents a hydrogen atom or a methyl group. Thus, there is provided a vinyl alcohol-based polymer having an olefin in side chain exhibiting higher water solubility even after thermal treatment, higher storage stability, and higher reactivity to high energy beam, and a method for producing it.Type: GrantFiled: December 26, 2017Date of Patent: June 8, 2021Assignee: KURARAY CO., LTD.Inventors: Yusuke Amano, Yuki Tachibana, Yuki Kosaka, Kazuhiko Maekawa
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Patent number: 10996280Abstract: A battery pack includes a secondary battery, a state of charge calculator, an integrated current amount calculator, a differential state of charge calculator, a full charge capacity calculator, and a charging-and-discharging control section. The differential state of charge calculator calculates a differential state of charge between a first state of charge at a first detection timing and a second state of charge at a second detection timing. The integrated current amount calculator calculates an integrated amount of a current flowing to the secondary battery in a subject period from the first detection timing to the second detection timing. The full charge capacity calculator calculates a full charge capacity of the secondary battery based on the differential state of charge and the integrated current amount. The charging-and-discharging control section is configured to restrict one of the charging and the discharging of the secondary battery during the subject period.Type: GrantFiled: July 15, 2019Date of Patent: May 4, 2021Assignee: DENSO CORPORATIONInventors: Yuki Tachibana, Yamato Utsunomiya, Takeshi Sada
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Patent number: 10938386Abstract: A controller for a system includes a first control section and a second control section. The system includes an electrical actuator, a switch switching the electrical actuator between a power supply state and a power cutoff state, and a drive section driving the switch. The drive section outputs, to the switch, a drive signal to drive the switch based on a command signal for switching of the switch. The first control section determines a switch state based on the command signal, and the second control section determines a switch state based on the drive signal. At least one of the first control section and the second control section determines the electrical actuator to be in the power supply state on the condition that the first control section determines the switch to be in the power supply state, and the second control section also determines the switch to be in the power supply state.Type: GrantFiled: June 17, 2020Date of Patent: March 2, 2021Assignee: DENSO CORPORATIONInventor: Yuki Tachibana
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Publication number: 20200395928Abstract: A controller for a system includes a first control section and a second control section. The system includes an electrical actuator, a switch switching the electrical actuator between a power supply state and a power cutoff state, and a drive section driving the switch. The drive section outputs, to the switch, a drive signal to drive the switch based on a command signal for switching of the switch. The first control section determines a switch state based on the command signal, and the second control section determines a switch state based on the drive signal. At least one of the first control section and the second control section determines the electrical actuator to be in the power supply state on the condition that the first control section determines the switch to be in the power supply state, and the second control section also determines the switch to be in the power supply state.Type: ApplicationFiled: June 17, 2020Publication date: December 17, 2020Inventor: Yuki TACHIBANA
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Publication number: 20200362078Abstract: The invention relates to particles with an average particle size of 300 to 1000 ?m, comprising a modified polyvinyl alcohol having vinyl alcohol units and structural units represented by formula (1), wherein a content of the vinyl alcohol units is 60 to 90 mol % based on the total structural units: wherein R1 represents a hydrogen atom or a methyl group. Thus, the present invention provides particles containing a modified polyvinyl alcohol having high water solubility and high affinity for a photosensitive monomer, which are highly photosensitive.Type: ApplicationFiled: February 18, 2019Publication date: November 19, 2020Applicant: KURARAY CO., LTD.Inventors: Yusuke AMANO, Yuki TACHIBANA, Yuki SHIMIZU, Kazuhiko MAEKAWA
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Publication number: 20200157255Abstract: There is provided a vinyl alcohol-based polymer having an olefin in side chain, comprising 0.001 to 10 mol % of a structural unit represented by Formula (1) based on the total amount of structural units, wherein the total carbon number of X, R1, R2, R3 and R4 is 2 or more. The vinyl alcohol-based polymer having an olefin in side chain has excellent storage stability, good solubility in water or an organic solvent even after thermal treatment, and excellent reactivity to high energy beam.Type: ApplicationFiled: June 5, 2018Publication date: May 21, 2020Applicant: KURARAYCO., LTD.Inventors: Yuki TACHIBANA, Yusuke AMANO, Kazuhiko MAEKAWA
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Publication number: 20200087860Abstract: Release paper base paper includes a substrate; and a coating agent containing a modified polyvinyl alcohol (A) and sodium acetate, the substrate coated with the coating agent, wherein the modified polyvinyl alcohol (A) has 0.005 mol % or more and less than 10 mol % of double bonds derived from unsaturated carboxylic acid or a derivative thereof (B) in side chains, has 1.4 mol % or more and 2.0 mol % or less of 1,2-glycol bond, units, and is water soluble, and a content of the sodium acetate relative to the modified polyvinyl alcohol (A) is 0.01 mass % or more and 10 mass % or less. The release paper base paper of the present invention is excellent in sealing properties for silicone. Use of the release paper base paper allows acceleration of curing of silicone in a release layer and improvement in adhesion between the substrate and the release layer.Type: ApplicationFiled: March 29, 2018Publication date: March 19, 2020Applicant: KURARAYCQ., LTD.Inventors: Keisuke MORIKAWA, Taeko KAHARU, Tadahito FUKUHARA, Yuki TACHIBANA
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Patent number: 10522817Abstract: A positive electrode material includes: Li2Ni?M1?M2?Mn?O4-?. ? satisfies a relational expression of 0.50<??1.33. ? satisfies a relational expression of 0.33???1.1. ? satisfies a relational expression of 0???1.00. ? satisfies a relational expression of 0??<0.67. ? satisfies a relational expression of 0???1.00. M1 is at least one type selected from Co and Ga. M2 is at least one type selected from Ge, Sn, and Sb. Li2Ni?M1?M2?Mn?O4-? has a layered structure which includes a Li layer and a Ni layer. A crystal structure of Li2Ni?M1?M2?Mn?O4-? is a superlattice structure.Type: GrantFiled: March 10, 2016Date of Patent: December 31, 2019Assignee: DENSO CORPORATIONInventors: Yuki Tachibana, Yoshinori Satou, Nobuo Yamamoto, Shigeki Komine, Yuta Shimonishi