Patents by Inventor Kaeko Araki
Kaeko Araki 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: 20230357582Abstract: In a coloring ultraviolet protective agent, the average molar absorption coefficient in the wavelength range from 200 nm to 380 nm is increased, and the color characteristics in the visible region are controlled. The coloring ultraviolet protective agent is useful for shielding ultraviolet rays and coloring.Type: ApplicationFiled: July 13, 2023Publication date: November 9, 2023Applicant: M. TECHNIQUE CO., LTD.Inventors: Masakazu ENOMURA, Daisuke HONDA, Kaeko ARAKI
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Publication number: 20230240993Abstract: Provided are a method for producing organic material microparticles and a method for modifying organic material microparticles, whereby it becomes possible to improve the crystallinity of organic material microparticles or achieve the crystal transformation of the organic material microparticles while preventing the growth of the organic material microparticles in a solvent. A surfactant is added to a solvent that is capable of partially dissolving organic material microparticles, and then the organic material microparticles are reacted with the solvent. In this manner, it becomes possible to improve the degree of crystallization of the organic material microparticles or achieve the crystal transformation of the organic material microparticles without substantially altering the particle diameters of the organic material microparticles.Type: ApplicationFiled: March 7, 2023Publication date: August 3, 2023Applicant: M. TECHNIQUE CO., LTD.Inventors: Masakazu ENOMURA, Kaeko ARAKI, Daisuke HONDA
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Publication number: 20230190658Abstract: The present application provides a microsphere in which a main agent is uniformly dispersed in a polymer matrix, wherein an average volume-based particle diameter of the microsphere is 1 ?m or more and 150 ?m or less, and a variation coefficient of area ratios in four regions is 0.35 or less, wherein the area ratios in four regions are calculated by (s/A)×100 (%) wherein the four regions are prepared by preparing a cross section observation sample obtained by cutting the microsphere; observing the cross section observation sample with an electron microscope at a magnification capable of confirming the main agent in the microsphere or a higher magnification; and dividing the electron microscope observation image into four regions; and A is an area of a respective divided region, and s is a sum of cross section areas of the main agent included in the respective divided region.Type: ApplicationFiled: February 22, 2023Publication date: June 22, 2023Applicant: M. TECHNIQUE CO., LTD.Inventors: Masakazu ENOMURA, Kaeko ARAKI, Mai YOSHIZUMI
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Patent number: 11633359Abstract: Provided are a method for producing organic material microparticles and a method for modifying organic material microparticles, whereby it becomes possible to improve the crystallinity of organic material microparticles or achieve the crystal transformation of the organic material microparticles while preventing the growth of the organic material microparticles in a solvent. A surfactant is added to a solvent that is capable of partially dissolving organic material microparticles, and then the organic material microparticles are reacted with the solvent. In this manner, it becomes possible to improve the degree of crystallization of the organic material microparticles or achieve the crystal transformation of the organic material microparticles without substantially altering the particle diameters of the organic material microparticles.Type: GrantFiled: December 15, 2015Date of Patent: April 25, 2023Assignee: M. TECHNIQUE CO., LTD.Inventors: Masakazu Enomura, Kaeko Araki, Daisuke Honda
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Patent number: 11617720Abstract: The present application provides a microsphere in which a main agent is uniformly dispersed in a polymer matrix, wherein an average volume-based particle diameter of the microsphere is 1 ?m or more and 150 ?m or less, and a variation coefficient of area ratios in four regions is 0.35 or less, wherein the area ratios in four regions are calculated by (s/A)×100(%) wherein the four regions are prepared by preparing a cross section observation sample obtained by cutting the microsphere; observing the cross section observation sample with an electron microscope at a magnification capable of confirming the main agent in the microsphere or a higher magnification; and dividing the electron microscope observation image into four regions; and A is an area of a respective divided region, and s is a sum of cross section areas of the main agent included in the respective divided region.Type: GrantFiled: November 27, 2020Date of Patent: April 4, 2023Assignee: M. TECHNIQUE CO., LTD.Inventors: Masakazu Enomura, Kaeko Araki, Mai Yoshizumi
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Patent number: 11439973Abstract: Provided are an immediately-before-stirring-type fluid processing device and an immediately-before-stirring-type fluid processing method that can adjust or improve the final properties of a fluid to be processed that is introduced as a raw material into an annular flow channel of a microreactor employing the annular flow channel, which is formed between relatively rotating processing surfaces, as a flow channel in which fluid processing is performed. A fluid to be processed, which has been prepared in a fluid preparing system so as to be in an ideal state for reaction, is charged into a fluid processing device. The fluid processing device subjects the fluid to be processed to reaction processing in an annular flow channel, which is formed between two processing surfaces. A cylindrical stirring space is provided in the radially inner side of the annular flow channel, and a rotor and a screen are disposed inside the stirring space.Type: GrantFiled: October 12, 2016Date of Patent: September 13, 2022Assignee: M. TECHNIQUE CO., LTD.Inventors: Masakazu Enomura, Kaeko Araki
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Publication number: 20220168224Abstract: The present application provides a microsphere comprising a lactic acid-glycolic acid copolymer (PLGA) or polylactide (PLA) as a main component, in which a biologically active substance is uniformly dispersed, wherein an average volume-based particle diameter of the microsphere is 1 ?m or more and 150 ?m or less, and a variation coefficient of area ratios in six regions is 0.35 or less, wherein the area ratios in six regions are calculated by (s/A)×100 (%) wherein the six regions are prepared by preparing a cross section observation sample obtained by cutting the microsphere; observing the cross section observation sample with an electron microscope at a magnification capable of confirming the biologically active substance in the microsphere or a higher magnification; and dividing the electron microscope observation image into six regions; and A is an area of a respective divided region, and s is a sum of cross section areas of the biologically active substance included in the respective divided region.Type: ApplicationFiled: February 16, 2022Publication date: June 2, 2022Applicant: M. TECHNIQUE CO., LTD.Inventors: Masakazu ENOMURA, Kaeko ARAKI
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Publication number: 20220133632Abstract: The present application provides approximately spherical lactic acid-glycolic acid copolymer (PLGA) microparticles comprising a biologically active substance, wherein an average volume-based particle diameter of the PLGA microparticles is 1 ?m or more and 150 ?m or less, and a Reactive Span Factor (R.S.F.) of the PLGA microparticles is satisfied with formula (1): 0.1<(R.S.F.)?1.7 formula (1), wherein an R.S.F. means (D90?D10)/D50; D90 is a particle diameter (?m) corresponding to the cumulative 90% by volume of the cumulative particle diameter distribution from the small particle side; D50 is a particle diameter (?m) corresponding to the cumulative 50% by volume of the cumulative particle diameter distribution from the small particle side; and D10 is a particle diameter (?m) corresponding to the cumulative 10% by volume of the cumulative particle diameter distribution from the small particle side; and an efficient production method thereof.Type: ApplicationFiled: March 14, 2019Publication date: May 5, 2022Applicant: M. TECHNIQUE CO., LTD.Inventors: Masakazu ENOMURA, Kaeko ARAKI
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Patent number: 11285109Abstract: The present application provides a microsphere comprising a lactic acid-glycolic acid copolymer (PLGA) or polylactide (PLA) as a main component, in which a biologically active substance is uniformly dispersed, wherein an average volume-based particle diameter of the microsphere is 1 ?m or more and 150 ?m or less, and a variation coefficient of area ratios in six regions is 0.35 or less, wherein the area ratios in six regions are calculated by (s/A)×100 (%) wherein the six regions are prepared by preparing a cross section observation sample obtained by cutting the microsphere; observing the cross section observation sample with an electron microscope at a magnification capable of confirming the biologically active substance in the microsphere or a higher magnification; and dividing the electron microscope observation image into six regions; and A is an area of a respective divided region, and s is a sum of cross section areas of the biologically active substance included in the respective divided region.Type: GrantFiled: September 11, 2020Date of Patent: March 29, 2022Assignee: M. TECHNIQUE CO., LTD.Inventors: Masakazu Enomura, Kaeko Araki
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Patent number: 11180658Abstract: A pigment composition for a green filter includes a green pigment consisting of a halogenated zinc phthalocyanine, wherein as spectral transmission characteristics of a dispersion containing only the green pigment as a pigment, the transmittance at 400 nm is 1% or less; the transmittance at 450 nm is 25% or less; the transmittance at 600 nm is 30% or less; the transmittance at 650 nm is 0.3% or less; the transmittance at the peak wavelength is 80% or more; the half value width of the peak wavelength is 120 nm or less; the transmittance at 750 nm is 1% or less; and the transmittance at 800 nm is 20% or less. The pigment composition for a green filter has low transmittance in the blue range, low transmittance in the near infrared range, and high transmittance in the green range by only a green pigment.Type: GrantFiled: October 31, 2017Date of Patent: November 23, 2021Assignee: M. TECHNIQUE CO., LTD.Inventors: Masakazu Enomura, Kaeko Araki, Masahito Niikawa
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Publication number: 20210346297Abstract: The present application provides a microsphere comprising a lactic acid-glycolic acid copolymer (PLGA) or polylactide (PLA) as a main component, in which a biologically active substance is uniformly dispersed, wherein an average volume-based particle diameter of the microsphere is 1 ?m or more and 150 ?m or less, and a variation coefficient of area ratios in six regions is 0.35 or less, wherein the area ratios in six regions are calculated by (s/A)×100 (%) wherein the six regions are prepared by preparing a cross section observation sample obtained by cutting the microsphere; observing the cross section observation sample with an electron microscope at a magnification capable of confirming the biologically active substance in the microsphere or a higher magnification; and dividing the electron microscope observation image into six regions; and A is an area of a respective divided region, and s is a sum of cross section areas of the biologically active substance included in the respective divided region.Type: ApplicationFiled: September 11, 2020Publication date: November 11, 2021Applicant: M. TECHNIQUE CO., LTD.Inventors: Masakazu ENOMURA, Kaeko ARAKI
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A MAIN AGENT UNIFORMLY DISPERSED MICROSPHERE AND A SUSTAINED RELEASE FORMULATION COMPRISING THE SAME
Publication number: 20210346298Abstract: The present application provides a microsphere in which a main agent is uniformly dispersed in a polymer matrix, wherein an average volume-based particle diameter of the microsphere is 1 ?m or more and 150 ?m or less, and a variation coefficient of area ratios in four regions is 0.35 or less, wherein the area ratios in four regions are calculated by (s/A)×100(%) wherein the four regions are prepared by preparing a cross section observation sample obtained by cutting the microsphere; observing the cross section observation sample with an electron microscope at a magnification capable of confirming the main agent in the microsphere or a higher magnification; and dividing the electron microscope observation image into four regions; and A is an area of a respective divided region, and s is a sum of cross section areas of the main agent included in the respective divided region.Type: ApplicationFiled: November 27, 2020Publication date: November 11, 2021Applicant: M. TECHNIQUE CO., LTD.Inventors: Masakazu ENOMURA, Kaeko ARAKI, Mai YOSHIZUMI -
Patent number: 10676418Abstract: The present invention addresses the problem of providing a method for efficiently producing uniform microparticles of curcumin and/or ?-oryzanol at a higher yield. The target microparticles are produced by dissolving a starting material in a solvent to give a starting material solution and then subjecting the starting material solution to crystallization by a poor solvent method to thereby deposit the starting material. To prepare the starting material solution, curcumin and/or ?-oryzanol are used as the starting material(s) and ethanol is used as the solvent. The starting material(s) and the solvent are stirred in a pressurized state at a temperature of 78.3-130° C. inclusive to give the starting material solution. Then, the starting material solution thus obtained is subjected to crystallization by the poor solvent method and thus the target microparticles are produced.Type: GrantFiled: September 5, 2017Date of Patent: June 9, 2020Assignee: M. TECHNIQUE CO., LTD.Inventors: Masakazu Enomura, Kaeko Araki
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Publication number: 20200038821Abstract: Provided are an immediately-before-stirring-type fluid processing device and an immediately-before-stirring-type fluid processing method that can adjust or improve the final properties of a fluid to be processed that is introduced as a raw material into an annular flow channel of a microreactor employing the annular flow channel, which is formed between relatively rotating processing surfaces, as a flow channel in which fluid processing is performed. A fluid to be processed, which has been prepared in a fluid preparing system so as to be in an ideal state for reaction, is charged into a fluid processing device. The fluid processing device subjects the fluid to be processed to reaction processing in an annular flow channel, which is formed between two processing surfaces. A cylindrical stirring space is provided in the radially inner side of the annular flow channel, and a rotor and a screen are disposed inside the stirring space.Type: ApplicationFiled: October 12, 2016Publication date: February 6, 2020Applicant: M. TECHNIQUE CO., LTD.Inventors: Masakazu ENOMURA, Kaeko ARAKI
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Publication number: 20190256711Abstract: A pigment composition for a green filter includes a green pigment consisting of a halogenated zinc phthalocyanine, wherein as spectral transmission characteristics of a dispersion containing only the green pigment as a pigment, the transmittance at 400 nm is 1% or less; the transmittance at 450 nm is 25% or less; the transmittance at 600 nm is 30% or less; the transmittance at 650 nm is 0.3% or less; the transmittance at the peak wavelength is 80% or more; the half value width of the peak wavelength is 120 nm or less; the transmittance at 750 nm is 1% or less; and the transmittance at 800 nm is 20% or less. The pigment composition for a green filter has low transmittance in the blue range, low transmittance in the near infrared range, and high transmittance in the green range by only a green pigment.Type: ApplicationFiled: October 31, 2017Publication date: August 22, 2019Applicant: M. TECHNIQUE CO., LTD.Inventors: Masakazu ENOMURA, Kaeko ARAKI, Masahito NIIKAWA
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Publication number: 20190202765Abstract: The present invention addresses the problem of providing a method for efficiently producing uniform microparticles of curcumin and/or ?-oryzanol at a higher yield. The target microparticles are produced by dissolving a starting material in a solvent to give a starting material solution and then subjecting the starting material solution to crystallization by a poor solvent method to thereby deposit the starting material. To prepare the starting material solution, curcumin and/or ?-oryzanol are used as the starting material(s) and ethanol is used as the solvent. The starting material(s) and the solvent are stirred in a pressurized state at a temperature of 78.3-130° C. inclusive to give the starting material solution. Then, the starting material solution thus obtained is subjected to crystallization by the poor solvent method and thus the target microparticles are produced.Type: ApplicationFiled: September 5, 2017Publication date: July 4, 2019Applicant: M. TECHNIQUE CO., LTD.Inventors: Masakazu ENOMURA, Kaeko ARAKI
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Publication number: 20190144691Abstract: In a coloring ultraviolet protective agent, the average molar absorption coefficient in the wavelength range from 200 nm to 380 nm is increased, and the color characteristics in the visible region are controlled. The coloring ultraviolet protective agent is useful for shielding ultraviolet rays and coloring.Type: ApplicationFiled: April 4, 2017Publication date: May 16, 2019Applicant: M. TECHNIQUE CO., LTD.Inventors: Masakazu ENOMURA, Daisuke HONDA, Kaeko ARAKI
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Publication number: 20170340564Abstract: Provided are a method for producing organic material microparticles and a method for modifying organic material microparticles, whereby it becomes possible to improve the crystallinity of organic material microparticles or achieve the crystal transformation of the organic material microparticles while preventing the growth of the organic material microparticles in a solvent. A surfactant is added to a solvent that is capable of partially dissolving organic material microparticles, and then the organic material microparticles are reacted with the solvent. In this manner, it becomes possible to improve the degree of crystallization of the organic material microparticles or achieve the crystal transformation of the organic material microparticles without substantially altering the particle diameters of the organic material microparticles.Type: ApplicationFiled: December 15, 2015Publication date: November 30, 2017Applicant: M. TECHNIQUE CO., LTD.Inventors: Masakazu ENOMURA, Kaeko ARAKI, Daisuke HONDA
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Patent number: 9764250Abstract: The problem addressed by the present invention is providing a fluid processing method including extraction that can extract material to be extracted continuously with high efficiency. In a thin film fluid formed between at least two processing surfaces (1, 2) disposed facing each other so as to be able to approach to and separate from each other such that at least one rotates relative to the other, a fluid processing that extracts at least one kind of material to be extracted in at least one kind of the extraction solvent that can extract that material to be extracted is carried out.Type: GrantFiled: May 23, 2012Date of Patent: September 19, 2017Assignee: M. TECHNIQUE CO., LTD.Inventors: Kaeko Araki, Daisuke Honda, Masakazu Enomura
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Patent number: 9539642Abstract: A method for increasing the production of fine particles is provided. The method uses at least two types of fluids to be processed, a raw material fluid containing at least one type of fine particle raw material and a fluid for treating the fine particle raw material. Fine particles are obtained by mixing the fluids to be processed in a thin film fluid formed between at least two processing surfaces which are disposed to be faced with each other so as to be able to approach to and separate from each other, at least one of which rotates relative to the other. The production of the fine particles is increased by introducing the raw material fluid from the centers of the processing surfaces.Type: GrantFiled: March 15, 2012Date of Patent: January 10, 2017Assignee: M. TECHNIQUE CO., LTD.Inventors: Masaki Maekawa, Kaeko Araki, Daisuke Honda, Masakazu Enomura