Patents by Inventor Masaaki Suzuki

Masaaki Suzuki 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).

  • Patent number: 11224667
    Abstract: An object of the invention is to provide an 11C-labeled catechol derivative having sufficient radioactivity to obtain an imaging image by a PET apparatus, a PET probe of a phosphorylated tau aggregation inhibitor using the same, and a method for producing them. The 11C-labeled catechol derivative of the present invention is represented by the following general formula (a) (wherein R is a substituent having an isopropylamino group, and the carbon at the 2-position of the isopropylamino group is labeled with 11C).
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: January 18, 2022
    Assignee: NATIONAL CENTER FOR GERIATRICS AND GERONTOLOGY
    Inventors: Masaaki Suzuki, Kengo Ito, Takashi Kato, Hiroshi Ikenuma, Hiroko Koyama
  • Publication number: 20210355061
    Abstract: The present invention provides a method for introducing substituents into the ?-position and the ?-position of an ?,?-unsaturated ketone, which not only can be used for the synthesis of a prostaglandin by a three-component coupling process, but also enables synthesis of a prostaglandin in a high yield by one-pot operation without requiring the use of a large excess amount of any of the three components required for the synthesis or using a highly toxic heavy metal as a catalyst or a solvent that is highly toxic to living bodies, and a method for synthesizing a prostaglandin using the same technical means.
    Type: Application
    Filed: May 29, 2018
    Publication date: November 18, 2021
    Applicant: NATIONAL CENTER FOR GERIATRICS AND GERONTOLOGY
    Inventors: Masaaki SUZUKI, Hiroko KOYAMA
  • Publication number: 20210348263
    Abstract: [Object] A film is deposited on a substrate with high productivity and more uniform film thickness distribution. [Solving Means] In a deposition apparatus, a substrate holder supports at least one substrate facing a first target, rotates around a first central axis, and is configured such that the substrate is rotatable around a second central axis deviated from the first central axis. A vacuum chamber houses the first target and the substrate holder. A power source supplies discharge power to the first target. A gas supply mechanism supplies a discharge gas to the vacuum chamber.
    Type: Application
    Filed: October 30, 2019
    Publication date: November 11, 2021
    Inventors: Shuji KODAIRA, Teppei TAKAHASHI, Takahiro TOBIISHI, Norifumi YAMAMURA, Hiroaki KATAGIRI, Junya KUBO, Masaaki SUZUKI
  • Publication number: 20210230741
    Abstract: A method of forming a film of this invention includes: rotating, inside a vacuum chamber, a to-be-processed substrate with a center of the to-be-processed substrate, while revolving the to-be-processed substrate on the same plane about a revolution shaft; and feeding a film-forming material from a film-forming source to form a predetermined thin film on a surface of the to-be-processed substrate.
    Type: Application
    Filed: December 11, 2019
    Publication date: July 29, 2021
    Applicant: ULVAC, INC.
    Inventors: Shuji Kodaira, Teppei Takahashi, Takahiro Tobiishi, Norifumi Yamamura, Hiroaki Katagiri, Junya Kubo, Masaaki Suzuki
  • Publication number: 20210205481
    Abstract: An object of the invention is to provide an 11C-labeled catechol derivative having sufficient radioactivity to obtain an imaging image by a PET apparatus, a PET probe of a phosphorylated tau aggregation inhibitor using the same, and a method for producing them. The 11C-labeled catechol derivative of the present invention is represented by the following general formula (a) (wherein R is a substituent having an isopropylamino group, and the carbon at the 2-position of the isopropylamino group is labeled with 11C).
    Type: Application
    Filed: June 30, 2017
    Publication date: July 8, 2021
    Applicant: NATIONAL CENTER FOR GERIATRICS AND GERONTOLOGY
    Inventors: Masaaki SUZUKI, Kengo ITO, Takashi KATO, Hiroshi IKENUMA, Hiroko KOYAMA
  • Patent number: 10981913
    Abstract: An object of the invention is to provide a 11C-labeled O6-benzylguanine capable of obtaining a PET image and a process for producing the same. The 11C-labeled O6-benzylguanine of the invention is represented by the following chemical formula (a). The 11C-labeled O6-benzylguanine is produced by: a coupling step of cross-coupling a methyl iodide labeled with 11C and the following organotin compound (b) (R1 represents an alkyl group, and R2 and R3 represent a leaving group which can be eliminated with a base) in the presence of a palladium complex, a phosphine ligand, and cuprous halide in an aprotic lactam; and a desorption step of desorbing the leaving groups R2 and R3 of the coupling product obtained by the coupling step with a base.
    Type: Grant
    Filed: June 3, 2017
    Date of Patent: April 20, 2021
    Assignee: NATIONAL CENTER FOR GERIATRICS AND GERONTOLOGY
    Inventors: Masaaki Suzuki, Kengo Ito, Atsushi Natsume, Hiroshi Ikenuma, Hiroko Koyama
  • Patent number: 10974482
    Abstract: A laminated film having a haze of 1.0% or less and including two kinds of silica particles (silica particles A and silica particles B) in a cured layer, wherein the occupied area proportion of the silica particles A on a cross-sectional TEM image of the cured layer is 0.5% to 20.0% and satisfies the following relationship with the occupied area proportion of the silica particles B: 0.005?occupied area proportion of silica particles A/occupied area proportion of silica particles B?0.400, the variation coefficient of the occupied area proportion of the silica particles A on the cross-sectional TEM image of the cured layer is more than 0.5% and 3.0% or less, and the variation coefficient of the occupied area proportion of the silica particles B is 0.0% to 0.5%; a production method thereof; a polarizing plate; a liquid crystal panel; a liquid crystal display; and a touch panel.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: April 13, 2021
    Assignee: FUJIFILM Corporation
    Inventors: Masaaki Suzuki, Tatsuya Iwasaki, Katsuyuki Takada
  • Patent number: 10961458
    Abstract: A liquid crystal composition is provided which has excellent alignment properties, improves a surface state of an optically anisotropic layer to be formed, and improves adhesiveness with a polarizer, an optical film using the same, a polarizing plate, and an image display device. The liquid crystal composition according to the present invention is a liquid crystal composition containing a copolymer having a repeating unit represented by Formula (I) and a repeating unit represented by Formula (II), and a liquid crystal compound.
    Type: Grant
    Filed: March 21, 2019
    Date of Patent: March 30, 2021
    Assignee: FUJIFILM Corporation
    Inventors: Masaaki Suzuki, Shunya Katoh, Koji Iijima, Yuki Nakamura
  • Patent number: 10935710
    Abstract: The present invention relates to an optical film which ensures adhesiveness between a polymer film and a liquid crystal layer without deteriorating the alignment of a liquid crystal compound; a polarizing plate using the same; an image display device; a method for producing an optical film; and a method for producing a polarizing plate. The optical film includes a polymer film including a cycloolefin-based polymer, and a liquid crystal layer that is provided adjacent to the polymer film, in which the liquid crystal layer is formed by using a liquid crystal composition containing a liquid crystal compound and a compound having a specific structure, where the liquid crystal composition contains the compound having a specific structure at a content of 0.5% to 7.0% by mass with respect to a mass of the liquid crystal compound, and a predetermined eccentricity value is 20% to 80%.
    Type: Grant
    Filed: September 6, 2018
    Date of Patent: March 2, 2021
    Assignee: FUJIFILM Corporation
    Inventors: Koji Iijima, Tatsuya Iwasaki, Katsufumi Ohmuro, Masaaki Suzuki
  • Patent number: 10739641
    Abstract: A liquid crystal display device is provided in which a tint change in case of being seen from an oblique direction at the time of black display is suppressed. The liquid crystal display device includes: a liquid crystal cell and a pair of polarizing plates that are disposed such that the liquid crystal cell is interposed between the pair of polarizing plates, in which a tilt angle of the liquid crystal compound is 1.0° or less, respective color filters that are disposed on respective pixel regions of the liquid crystal cell are provided between the pair of polarizing plates, Rth of the respective color filters satisfy predetermined requirements, the polarizing plate that is disposed on the visible side among the pair of polarizing plates includes an optical compensation layer and a polarizer in this order from the liquid crystal cell side, and the optical compensation layer satisfies a predetermined requirement.
    Type: Grant
    Filed: October 29, 2019
    Date of Patent: August 11, 2020
    Assignee: FUJIFILM Corporation
    Inventors: Tatsuya Iwasaki, Masaaki Suzuki, Katsufumi Ohmuro
  • Patent number: 10732454
    Abstract: The laminated film includes a substrate film; and a cured layer obtained by curing a polymerizable composition includes a compound having a cyclic ether group, a polyfunctional (meth)acrylate compound having three or more (meth)acryloyl groups in one molecule, a radical polymerization initiator, and a cation polymerization initiator, in which an absorbance ratio P1/P2 in an infrared absorption spectrum of the cured layer is in a range of 4.40 to 15.00, and an absorbance ratio P2/P3 is in a range of 0.01 to 0.08, P1 is an absorbance at an absorption maximum peak in a wave number range of 3,650 to 3,200 cm?1, P2 is an absorbance at an absorption maximum peak in a wave number range of 800 to 770 cm?1, and P3 is an absorbance at an absorption maximum peak in a wave number range of 1,740 to 1,690 cm?1.
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: August 4, 2020
    Assignee: FUJIFILM Corporation
    Inventors: Masaaki Suzuki, Katsuyuki Takada
  • Patent number: 10647802
    Abstract: An object of the present invention is to provide a polymer compound capable of improving adhesiveness between a hydrophobic member and a hydrophilic member. The polymer compound of the present invention is a polymer compound having a repeating unit represented by Formula (I) and a repeating unit represented by Formula (II).
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: May 12, 2020
    Assignee: FUJIFILM Corporation
    Inventors: Shunya Katoh, Masaru Yoshikawa, Masaaki Suzuki
  • Publication number: 20200064672
    Abstract: A liquid crystal display device is provided in which a tint change in case of being seen from an oblique direction at the time of black display is suppressed. The liquid crystal display device includes: a liquid crystal cell and a pair of polarizing plates that are disposed such that the liquid crystal cell is interposed between the pair of polarizing plates, in which a tilt angle of the liquid crystal compound is 1.0° or less, respective color filters that are disposed on respective pixel regions of the liquid crystal cell are provided between the pair of polarizing plates, Rth of the respective color filters satisfy predetermined requirements, the polarizing plate that is disposed on the visible side among the pair of polarizing plates includes an optical compensation layer and a polarizer in this order from the liquid crystal cell side, and the optical compensation layer satisfies a predetermined requirement.
    Type: Application
    Filed: October 29, 2019
    Publication date: February 27, 2020
    Applicant: FUJIFILM Corporation
    Inventors: Tatsuya IWASAKI, Masaaki SUZUKI, Katsufumi OHMURO
  • Publication number: 20200064673
    Abstract: A liquid crystal display device in which light leak and a tint change when being seen from an oblique direction at the time of black display are suppressed. The liquid crystal display device includes: a liquid crystal cell and a pair of polarizing plates that are disposed such that the liquid crystal cell is interposed between the pair of polarizing plates, in which a tilt angle of the liquid crystal compound is 1.0° or less, respective color filters that are disposed on respective pixel regions of the liquid crystal cell are provided between the pair of polarizing plates, Rth of the respective color filters satisfy predetermined requirements, the polarizing plate that is disposed on the visible side among the pair of polarizing plates includes an optical compensation layer and a polarizer in this order from the liquid crystal cell side, and the optical compensation layer satisfies a predetermined requirement.
    Type: Application
    Filed: October 30, 2019
    Publication date: February 27, 2020
    Applicant: FUJIFILM Corporation
    Inventors: Tatsuya IWASAKI, Yuki NAKAMURA, Masaaki SUZUKI, Katsufumi OHMURO
  • Publication number: 20190308974
    Abstract: An object of the invention is to provide a 11C-labeled O6-benzylguanine capable of obtaining a PET image and a process for producing the same. The 11C-labeled O6-benzylguanine of the invention is represented by the following chemical formula (a). The 11C-labeled O6-benzylguanine is produced by: a coupling step of cross-coupling a methyl iodide labeled with 11C and the following organotin compound (b) (R1 represents an alkyl group, and R2 and R3 represent a leaving group which can be eliminated with a base.) in the presence of a palladium complex, a phosphine ligand, and cuprous halide in an aprotic lactam; and a desorption step of desorbing the leaving groups R2 and R3 of the coupling product obtained by the coupling step with a base.
    Type: Application
    Filed: June 3, 2017
    Publication date: October 10, 2019
    Applicant: NATIONAL CENTER FOR GERIATRICS AND GERONTOLOGY
    Inventors: Masaaki SUZUKI, Kengo ITO, Atsushi NATSUME, Hiroshi IKENUMA, Hiroko KOYAMA
  • Patent number: 10433231
    Abstract: In a terminal that judges whether to trigger a handover from a serving cell to another cell, a RSRQ/RSRP measurer measures a first received quality value by using a cell-specific reference signal transmitted from the neighboring cell or a second received quality value by using a cell-detection reference signal transmitted from the neighboring cell. An offset adder calculates a third received quality value by adding an offset value to the second received quality value. A judging circuitry judges whether the first received quality value or the third received quality value satisfies a handover triggering condition with reference to the cell-specific reference signal. A transmitter transmits trigger information to the neighboring cell in order to activate handover from a serving cell to the neighboring cell, based on the judgement results.
    Type: Grant
    Filed: May 20, 2016
    Date of Patent: October 1, 2019
    Assignee: Panasonic Intellectual Property Corporation of America
    Inventors: Masaaki Suzuki, Hidetoshi Suzuki, Ayako Horiuchi, Masayuki Hoshino
  • Patent number: 10374225
    Abstract: A non-aqueous electrolyte secondary battery includes: a negative electrode active material represented by the Formula (1)=? (Si material)+? (carbon material), wherein the Si material is one or more kinds selected from the group consisting of SiOx that is a mixture of amorphous SiO2 particles and Si particles and a Si-containing alloy; ? and ? represent % by mass of each component in the layer; and 80??+??98, 0.1???40, and 58???97.9 are satisfied, and a difference between the maximum value and the minimum value of an area proportion (%) of a binder in an area of the field of view of each image of cross-sections of the layer in a case where a plurality of arbitrary places is selected in a plane of the negative electrode active material layer is within 10%.
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: August 6, 2019
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Kensuke Yamamoto, Wataru Ogihara, Gentaro Kano, Hideaki Tanaka, Youichirou Kondou, Masaaki Suzuki, Tsuyoshi Tanabe, Takashi Nakano
  • Publication number: 20190218460
    Abstract: An object of the present invention is a liquid crystal composition which has excellent alignment properties, improves a surface state of an optically anisotropic layer to be formed, and improves adhesiveness with a polarizer, an optical film using the same, a polarizing plate, and an image display device. The liquid crystal composition according to the present invention is a liquid crystal composition containing a copolymer having a repeating unit represented by Formula (I) and a repeating unit represented by Formula (II), and a liquid crystal compound.
    Type: Application
    Filed: March 21, 2019
    Publication date: July 18, 2019
    Applicant: FUJIFILM Corporation
    Inventors: Masaaki SUZUKI, Shunya KATOH, Koji IIJIMA, Yuki NAKAMURA
  • Publication number: 20190218324
    Abstract: An object of the present invention is to provide a polymer compound capable of improving adhesiveness between a hydrophobic member and a hydrophilic member. The polymer compound of the present invention is a polymer compound having a repeating unit represented by Formula (I) and a repeating unit represented by Formula (II).
    Type: Application
    Filed: March 27, 2019
    Publication date: July 18, 2019
    Applicant: FUJIFILM Corporation
    Inventors: Shunya KATOH, Masaru YOSHIKAWA, Masaaki SUZUKI
  • Publication number: 20190157664
    Abstract: A non-aqueous electrolyte secondary battery includes a negative electrode active material represented by: ?(Si material)+?(carbon material), the Si material is one or more kinds selected from the group consisting of SiOx that is a mixture of amorphous SiO2 particles and Si particles and a Si-containing alloy; ? and ? represent % by mass; and 80??+??98, 0.1???40, and 58???97.9 are satisfied), and when area proportions (%) of the Si material and the carbon material in an area of a field of view of each image of cross-sections of the layer in a case where a plurality of arbitrary places is selected in a plane of the layer are designated as S (%) and (100?S) (%), respectively, a difference between a maximum value and a minimum value of S is within 5%.
    Type: Application
    Filed: April 28, 2016
    Publication date: May 23, 2019
    Inventors: Kensuke Yamamoto, Wataru Ogihara, Gentaro Kano, Hideaki Tanaka, Youichirou Kondou, Masaaki Suzuki, Tsuyoshi Tanabe, Takashi Nakano