Patents by Inventor Kenta Katayama
Kenta Katayama 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: 20230151376Abstract: The present invention provides an organelle transformant screening method. More specifically, the present invention provides an organelle transformant screening method utilizing inhibition of a lipid synthetic pathway.Type: ApplicationFiled: March 24, 2021Publication date: May 18, 2023Applicant: NATIONAL UNIVERSITY CORPORATION KOBE UNIVERSITYInventors: Kenta KATAYAMA, Jun TERAMOTO, Keiji NISHIDA
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Patent number: 11599036Abstract: A toner comprising a toner particle that contains a binder resin and a wax, wherein the toner particle contains an organosilicon polymer as given by formula (1) below; R1—SiO3/2??(1), in formula (1), R1 is an alkyl group having from 1 to 4 carbons; in a cross section of the toner particle observed using a transmission electron microscope, in terms of a distance A from the centroid of the cross section of the toner particle to a contour of the cross section, the organosilicon polymer is present in a region that is not more than 80% of the distance A from the centroid; and an absolute value of a difference between an SP value of the organosilicon polymer and an SP value of the wax is not more than 0.70 (cal/cm3)1/2.Type: GrantFiled: August 11, 2020Date of Patent: March 7, 2023Assignee: CANON KABUSHIKI KAISHAInventors: Koki Inoue, Yoshihiro Nakagawa, Junya Asaoka, Yuu Sasano, Yuhei Terui, Kenta Katayama
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Patent number: 11467510Abstract: Provided is a toner containing a toner particle comprising a binder resin and an organosilicon polymer, wherein the organosilicon polymer contains an organosilicon polymer particle, the organosilicon polymer particle has a structure represented by the following formula (1): R1—SiO3/2??(1) in formula (1), R1 is a C1-4 alkyl group, and in cross-sectional observation of the toner particle by transmission electron microscopy, the organosilicon polymer particle is present in a region extending up to 80% of the distance A from the centroid out of the total distance A from the centroid of the toner particle cross-section to the contour of the cross-section, and the particle diameter of the organosilicon polymer particle is from 10 nm to 200 nm.Type: GrantFiled: August 11, 2020Date of Patent: October 11, 2022Assignee: CANON KABUSHIKI KAISHAInventors: Yuhei Terui, Yoshihiro Nakagawa, Junya Asaoka, Yuu Sasano, Koki Inoue, Kenta Katayama
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Publication number: 20220259610Abstract: The present invention provides a method for selecting a promoter that functions in an organelle, the method comprising: (1) the step of preparing sequence information obtained by RNA sequencing analysis; (2) the step of mapping the sequence information prepared in the step (1) onto a sequence of organellar DNA; (3) the step of calculating the amount of change in RNA expression in each region based on the mapping information obtained in the step (2); (4) the step of selecting regions in which the amount of change obtained in the step (3) is within a range of preset reference values; and (5) the step of identifying a region, among the regions selected, as a promoter functioning in an organelle.Type: ApplicationFiled: March 6, 2020Publication date: August 18, 2022Applicant: NATIONAL UNIVERSITY CORPORATION KOBE UNIVERSITYInventors: Kenta KATAYAMA, Keiji NISHIDA
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Publication number: 20210063902Abstract: A toner comprising a toner particle that contains a binder resin and a wax, wherein the toner particle contains an organosilicon polymer as given by formula (1) below; R1-SiO3/2 ??(1), in formula (1),R1 is an alkyl group having from 1 to 4 carbons; in a cross section of the toner particle observed using a transmission electron microscope, in terms of a distance A from the centroid of the cross section of the toner particle to a contour of the cross section, the organosilicon polymer is present in a region that is not more than 80% of the distance A from the centroid; and an absolute value of a difference between an SP value of the organosilicon polymer and an SP value of the wax is not more than 0.70 (cal/cm3)1/2.Type: ApplicationFiled: August 11, 2020Publication date: March 4, 2021Inventors: Koki Inoue, Yoshihiro Nakagawa, Junya Asaoka, Yuu Sasano, Yuhei Terui, Kenta Katayama
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Publication number: 20210063901Abstract: Provided is a toner containing a toner particle comprising a binder resin and an organosilicon polymer, wherein the organosilicon polymer contains an organosilicon polymer particle, the organosilicon polymer particle has a structure represented by the following formula (1): R1—SiO3/2 ??(1) in formula (1), R1 is a C1-4 alkyl group, and in cross-sectional observation of the toner particle by transmission electron microscopy, the organosilicon polymer particle is present in a region extending up to 80% of the distance A from the centroid out of the total distance A from the centroid of the toner particle cross-section to the contour of the cross-section, and the particle diameter of the organosilicon polymer particle is from 10 nm to 200 nm.Type: ApplicationFiled: August 11, 2020Publication date: March 4, 2021Inventors: Yuhei Terui, Yoshihiro Nakagawa, Junya Asaoka, Yuu Sasano, Koki Inoue, Kenta Katayama
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Patent number: 10852650Abstract: A toner has a toner particle including a binder resin, a colorant, and a wax, in which in a cross section of the toner particle observed under a scanning transmission electron microscope, a proportion of the number of toner particles having a void with a long diameter of 0.50 ?m or less is 60 number % or more, and a proportion of the number of toner particles having a void in a region from an outline of the cross section of the toner particle inward to 1.00 ?m in a total number of the toner particles having a void is 30 number % or less.Type: GrantFiled: January 28, 2019Date of Patent: December 1, 2020Assignee: CANON KABUSHIKI KAISHAInventors: Koki Inoue, Takeshi Tsujino, Yasuhiro Hashimoto, Junya Asaoka, Yuu Sasano, Kenta Katayama, Shota Amano
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Patent number: 10822611Abstract: A method for inducing a structural change in a plant mitochondrial genome is provided. The invention relates to a method for inducing a structural change in a mitochondrial genome in a plant cell by introducing a double-strand break into a target sequence region on mitochondrial genomic DNA in a plant cell, which is present in individual molecule species of the mitochondrial genomic DNA. In addition, the present invention also relates to a method for deleting a gene that is present in mitochondrial genomic DNA in a plant cell by introducing a double-strand break into the gene or a region near the gene, which is present in individual molecule species of the mitochondrial genomic DNA. Moreover, the invention also relates to a plant cell having a mitochondrial genome, in which a structural change has been induced by the method, and a seed and a plant having the plant cell.Type: GrantFiled: February 13, 2018Date of Patent: November 3, 2020Assignee: THE UNIVERSITY OF TOKYOInventors: Shin-ichi Arimura, Nobuhiro Tsutsumi, Kenta Katayama, Tomomi Hidaka, Tomohiko Kazama, Kinya Toriyama
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Publication number: 20190235402Abstract: A toner has a toner particle including a binder resin, a colorant, and a wax, in which in a cross section of the toner particle observed under a scanning transmission electron microscope, a proportion of the number of toner particles having a void with a long diameter of 0.50 ?m or less is 60 number % or more, and a proportion of the number of toner particles having a void in a region from an outline of the cross section of the toner particle inward to 1.00 ?m in a total number of the toner particles having a void is 30 number % or less.Type: ApplicationFiled: January 28, 2019Publication date: August 1, 2019Inventors: Koki Inoue, Takeshi Tsujino, Yasuhiro Hashimoto, Junya Asaoka, Yuu Sasano, Kenta Katayama, Shota Amano
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Publication number: 20180230477Abstract: A method for inducing a structural change in a plant mitochondrial genome is provided. The invention relates to a method for inducing a structural change in a mitochondrial genome in a plant cell by introducing a double-strand break into a target sequence region on mitochondrial genomic DNA in a plant cell, which is present in individual molecule species of the mitochondrial genomic DNA. In addition, the present invention also relates to a method for deleting a gene that is present in mitochondrial genomic DNA in a plant cell by introducing a double-strand break into the gene or a region near the gene, which is present in individual molecule species of the mitochondrial genomic DNA. Moreover, the invention also relates to a plant cell having a mitochondrial genome, in which a structural change has been induced by the method, and a seed and a plant having the plant cell.Type: ApplicationFiled: February 13, 2018Publication date: August 16, 2018Applicant: The University of TokyoInventors: Shin-ichi Arimura, Nobuhiro Tsutsumi, Kenta Katayama, Tomomi Hidaka, Tomohiko Kazama, Kinya Toriyama