Patents by Inventor Yohei OKUBO
Yohei OKUBO 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: 12005143Abstract: Disclosed herein are a method for producing a miniaturized liposome on a large production scale, and an apparatus for producing a liposome which is to be used in the above-mentioned method. Provided is a method for producing a liposome, including a step of stirring a mixture containing an oil phase in which at least one lipid is dissolved in an organic solvent and a water phase in a first tank of an apparatus having the first tank and a circulation path, in which the ratio of the capacity of the circulation path to the total capacity of the tank and the circulation path is 0.4 or less and/or the time required for the mixture to return to the first tank after being discharged therefrom is within 2.0 minutes.Type: GrantFiled: January 11, 2018Date of Patent: June 11, 2024Assignee: FUJIFILM CorporationInventors: Susumu Sugiyama, Naoki Yamada, Shigehisa Sugiyama, Yohei Okubo
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Patent number: 11395999Abstract: Disclosed herein are a method for producing a liposome which is capable of reducing the facility costs and also capable of rapid desolvation, and an apparatus for producing a liposome which is for use in the above-mentioned method. Provided is a method for producing a liposome, including a stirring step of stirring a mixed liquid containing an oil phase in which at least one lipid is dissolved in an organic solvent and a water phase, and an evaporating step of evaporating an organic solvent from the mixed liquid, in which the condensed organic solvent is removed by passing a gas having a temperature not higher than the dew point of the solvent in the evaporating step.Type: GrantFiled: January 11, 2018Date of Patent: July 26, 2022Assignee: FUJIFILM CorporationInventors: Susumu Sugiyama, Naoki Yamada, Shigehisa Sugiyama, Yohei Okubo, Takashi Sasaki, Tetsu Ishiguro
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Patent number: 11325091Abstract: Disclosed herein are a method for producing a liposome which is capable of reducing the facility costs and also capable of rapid desolvation, and an apparatus for producing a liposome which is for use in the above-mentioned method. Provided is a method for producing a liposome, including a stirring step of stirring a mixed liquid containing an oil phase in which at least one lipid is dissolved in an organic solvent and a water phase, and an evaporating step of evaporating an organic solvent from the mixed liquid, in which the condensed organic solvent is removed by passing a gas having a temperature not higher than the dew point of the solvent in the evaporating step.Type: GrantFiled: June 16, 2017Date of Patent: May 10, 2022Assignee: FUJIFILM CorporationInventors: Susumu Sugiyama, Naoki Yamada, Shigehisa Sugiyama, Yohei Okubo, Takashi Sasaki, Tetsu Ishiguro
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Patent number: 10485760Abstract: Disclosed herein are a method for producing a miniaturized liposome on a large production scale, and an apparatus for producing a liposome which is to be used in the above-mentioned method. Provided is a method for producing a liposome, including a step of stirring a mixture containing an oil phase in which at least one lipid is dissolved in an organic solvent and a water phase in a first tank of an apparatus having the first tank and a circulation path, in which the ratio of the capacity of the circulation path to the total capacity of the tank and the circulation path is 0.4 or less and/or the time required for the mixture to return to the first tank after being discharged therefrom is within 2.0 minutes.Type: GrantFiled: June 16, 2017Date of Patent: November 26, 2019Assignee: FUJIFILM CorporationInventors: Susumu Sugiyama, Naoki Yamada, Shigehisa Sugiyama, Yohei Okubo
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Publication number: 20180133676Abstract: Disclosed herein are a method for producing a liposome which is capable of reducing the facility costs and also capable of rapid desolvation, and an apparatus for producing a liposome which is for use in the above-mentioned method. Provided is a method for producing a liposome, including a stirring step of stirring a mixed liquid containing an oil phase in which at least one lipid is dissolved in an organic solvent and a water phase, and an evaporating step of evaporating an organic solvent from the mixed liquid, in which the condensed organic solvent is removed by passing a gas having a temperature not higher than the dew point of the solvent in the evaporating step.Type: ApplicationFiled: January 11, 2018Publication date: May 17, 2018Applicant: FUJIFILM CorporationInventors: Susumu SUGIYAMA, Naoki YAMADA, Shigehisa SUGIYAMA, Yohei OKUBO, Takashi SASAKI, Tetsu ISHIGURO
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Publication number: 20180133156Abstract: Disclosed herein are a method for producing a miniaturized liposome on a large production scale, and an apparatus for producing a liposome which is to be used in the above-mentioned method. Provided is a method for producing a liposome, including a step of stirring a mixture containing an oil phase in which at least one lipid is dissolved in an organic solvent and a water phase in a first tank of an apparatus having the first tank and a circulation path, in which the ratio of the capacity of the circulation path to the total capacity of the tank and the circulation path is 0.4 or less and/or the time required for the mixture to return to the first tank after being discharged therefrom is within 2.0 minutes.Type: ApplicationFiled: January 11, 2018Publication date: May 17, 2018Applicant: FUJIFILM CorporationInventors: Susumu SUGIYAMA, Naoki YAMADA, Shigehisa SUGIYAMA, Yohei OKUBO
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Patent number: 9920155Abstract: The object of the present invention is to provide a resin particle having a protrusion that is more resistant to the detachment and having a uniform protrusion size and protrusion distribution density. The resin particle of the present invention comprises: a spherical part and a peripheral part having a plurality of convex part formed on the surface of the spherical part, wherein the spherical part and the peripheral part comprise a vinyl polymer and/or a polysiloxane component, the spherical part and the peripheral part are different in the composition, the melting point of the peripheral part is not less than 200° C., and the curvature center of the boundary between the peripheral part and the spherical part determined by a transmission electron microscope observation of the cross-section of the resin particle exists in the spherical part.Type: GrantFiled: March 18, 2015Date of Patent: March 20, 2018Assignee: NIPPON SHOKUBAI CO., LTD.Inventors: Kazuaki Matsumoto, Yohei Okubo, Tomonari Takata, Junko Kita, Naoki Kobayashi
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Publication number: 20170281543Abstract: Disclosed herein are a method for producing a miniaturized liposome on a large production scale, and an apparatus for producing a liposome which is to be used in the above-mentioned method. Provided is a method for producing a liposome, including a step of stirring a mixture containing an oil phase in which at least one lipid is dissolved in an organic solvent and a water phase in a first tank of an apparatus having the first tank and a circulation path, in which the ratio of the capacity of the circulation path to the total capacity of the tank and the circulation path is 0.4 or less and/or the time required for the mixture to return to the first tank after being discharged therefrom is within 2.0 minutes.Type: ApplicationFiled: June 16, 2017Publication date: October 5, 2017Applicant: FUJIFILM CorporationInventors: Susumu SUGIYAMA, Naoki YAMADA, Shigehisa SUGIYAMA, Yohei OKUBO
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Publication number: 20170282144Abstract: Disclosed herein are a method for producing a liposome which is capable of reducing the facility costs and also capable of rapid desolvation, and an apparatus for producing a liposome which is for use in the above-mentioned method. Provided is a method for producing a liposome, including a stirring step of stirring a mixed liquid containing an oil phase in which at least one lipid is dissolved in an organic solvent and a water phase, and an evaporating step of evaporating an organic solvent from the mixed liquid, in which the condensed organic solvent is removed by passing a gas having a temperature not higher than the dew point of the solvent in the evaporating step.Type: ApplicationFiled: June 16, 2017Publication date: October 5, 2017Applicant: FUJIFILM CorporationInventors: Susumu SUGIYAMA, Naoki YAMADA, Shigehisa SUGIYAMA, Yohei OKUBO, Takashi SASAKI, Tetsu ISHIGURO
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Publication number: 20170096515Abstract: The object of the present invention is to provide a resin particle having a protrusion that is more resistant to the detachment and having a uniform protrusion size and protrusion distribution density. The resin particle of the present invention comprises: a spherical part and a peripheral part having a plurality of convex part formed on the surface of the spherical part, wherein the spherical part and the peripheral part comprise a vinyl polymer and/or a polysiloxane component, the spherical part and the peripheral part are different in the composition, the melting point of the peripheral part is not less than 200° C., and the curvature center of the boundary between the peripheral part and the spherical part determined by a transmission electron microscope observation of the cross-section of the resin particle exists in the spherical part.Type: ApplicationFiled: March 18, 2015Publication date: April 6, 2017Applicant: NIPPON SHOKUBAI CO., LTD.Inventors: Kazuaki MATSUMOTO, Yohei OKUBO, Tomonari TAKATA, Junko KITA, Naoki KOBAYASHI