Patents Assigned to Somar Corporation
  • Patent number: 12282139
    Abstract: A distance measuring device 1 capable of achieving high measurement accuracy is provided. The distance measuring device 1 comprises a LiDAR sensor unit 7 in a storage chamber 5 partitioned inside an exterior member 2. The LiDAR sensor unit 7 comprises a light emitting element 71 for emitting a detection light L1 for measuring a distance to an object, a light receiving element 73 for outputting a light-receiving signal S1 in accordance with an amount of an incident light, and a translucent cover 3 for covering the light emitting element 71 and light receiving element 73. Antireflection films 9a and 9b are provided at least on one main surface side of the translucent cover 3. The antireflection films 9a and 9b are configured by a membrane having a thickness of 2 ?m or more and 40 ?m or less formed from a liquid composition having a specific composition by spray coating.
    Type: Grant
    Filed: December 15, 2022
    Date of Patent: April 22, 2025
    Assignee: SOMAR CORPORATION
    Inventor: Naoki Sakazume
  • Patent number: 12227675
    Abstract: Provided are a UV curable composition which can be cured without undergoing a high-temperature heating step and has excellent adhesiveness and mechanical strength; and a sheet using the same. This UV curable composition includes a rubber component having a diene skeleton, a photopolymerization initiator, and a cross-linking agent, wherein the rubber component having a diene skeleton contains a solid rubber component and a liquid rubber component at 25° C. The UV curable composition can be cured by UV irradiation in a short time, and can thus be applied to not only an adherend having high heat resistance but also a wide range of members.
    Type: Grant
    Filed: September 25, 2020
    Date of Patent: February 18, 2025
    Assignee: SOMAR CORPORATION
    Inventor: Ryusuke Shimaguchi
  • Patent number: 12209211
    Abstract: The present invention provides a UV curable resin composition that can be cured without going through a high-temperature heating process and has excellent adhesiveness, and a sheet using the same. The UV curable resin composition comprises a rubber component with a diene skeleton, a photopolymerization initiator, a crosslinker and a tackifier. The composition contains a solid rubber component and a liquid rubber component at 25° C. as the rubber component with the diene. Since the UV curable composition can be cured by UV irradiation in a short time, it can be applied not only to adherends with high heat resistance but also to various parts.
    Type: Grant
    Filed: September 25, 2020
    Date of Patent: January 28, 2025
    Assignee: SOMAR CORPORATION
    Inventor: Ryusuke Shimaguchi
  • Publication number: 20250014796
    Abstract: The present invention provides a magnetic viscous fluid comprising a magnetic particle, base oil, an inorganic cation exchanger with a siloxane bond, and silicone oil. A difference A?B between a solubility parameter A of the base oil and a solubility parameter B of the silicone oil is 1.3 (cal/cm3)1/2 or more.
    Type: Application
    Filed: November 18, 2022
    Publication date: January 9, 2025
    Applicant: SOMAR CORPORATION
    Inventors: Hirohisa ISHIZAKI, Akira OCHIAI
  • Publication number: 20250011675
    Abstract: The present invention provides a magnetic viscous fluid comprising a magnetic particle, at least one selected from ester base synthetic oil, ether base synthetic oil, and alkylnaphthalene having an alkyl group with 10 to 20 carbons, an inorganic cation exchanger with a siloxane bond, and silicone oil.
    Type: Application
    Filed: November 18, 2022
    Publication date: January 9, 2025
    Applicant: SOMAR CORPORATION
    Inventors: Hirohisa ISHIZAKI, Akira OCHIAI
  • Publication number: 20240327745
    Abstract: The present invention provides a magnetic viscous fluid and a mechanical device with both improved drag force during excitation and improved rubber-resistant properties. The magnetic viscous fluid comprises a magnetic particle and base oil, wherein the base oil comprises ester base oil and non-polar base oil, and a non-polarity index of the base oil is in the range of 10 to 45.
    Type: Application
    Filed: November 1, 2023
    Publication date: October 3, 2024
    Applicant: SOMAR CORPORATION
    Inventors: Hirohisa ISHIZAKI, Akira OCHIAI
  • Patent number: 11908601
    Abstract: There is provided a magnetic responsiveness composite material capable of increasing viscosity by applying a magnetic field when compounded together with a liquid in a composition. The magnetic responsive composite material comprises first particles as core particles composed of a nonmagnetic inorganic material and second particles composed of a magnetic material adhering to at least a part of surfaces of the first particles. A lipophilic treatment agent is applied to at least a part of surfaces of the second particles. The second particles satisfy a relationship of having a smaller average particle diameter than that of the first particles. A lipophilic treatment agent is preferably at least one kind selected from coupling agents and surfactants.
    Type: Grant
    Filed: April 13, 2021
    Date of Patent: February 20, 2024
    Assignee: SOMAR CORPORATION
    Inventors: Hirohisa Ishizaki, Akira Ochiai
  • Patent number: 11614571
    Abstract: Provided is a black light-shielding member, which has an excellent effect of anti-reflection that based on low glossiness and has a high blackness. A black light-shielding member including a substrate film, a resin-made light-shielding layer having a concave-convex shape formed on at least one surface of the substrate film, and a blackened layer formed on the resin-made light-shielding layer is produced. By adjusting an arithmetic mean surface roughness Ra of the surface on which the light-shielding layer and the blackened layer are formed to be 0.25 ?m or more, and the maximum thickness of the blackened layer is less than the said Ra, a blackness with an L value of 12 or less is achieved.
    Type: Grant
    Filed: December 25, 2020
    Date of Patent: March 28, 2023
    Assignee: SOMAR CORPORATION
    Inventors: Hinoki Sakamura, Naoki Sakazume
  • Patent number: 11608448
    Abstract: There is provided a thermosetting powder coating material capable of forming a cured product having excellent workability at coating and high plasticity as well as heat resistance, resulting in heat resistance and crack resistance at bending processing. (A) denotes a bisphenol type epoxy resin having epoxy equivalent weight of 600 to 800 g/eq (not including 800 g/eq), (B) a rubber-modified epoxy resin, (C) a bisphenol type phenyl resin curing agent (D) a compound for activating (C), (D1) an imidazole compound and (D2) an amine-epoxy adduct type compound. The thermosetting powder coating material is composed of a finely pulverized composition. The composition comprises (A), (C) and (D) but does not comprise (B). (D) comprises (D1) and (D2), and a weight ratio of (D2) with respect to (D1) is 1.0 or more and 3.7 or less when (D1) is 1.
    Type: Grant
    Filed: March 17, 2021
    Date of Patent: March 21, 2023
    Assignee: SOMAR CORPORATION
    Inventors: Masaaki Toyoda, Fumiyuki Sasaki
  • Patent number: 11578183
    Abstract: A resin composition including: a magnetic fluid that includes magnetic particles, a dispersant, and a dispersion medium; and a resin or precursor thereof that includes, in a molecule thereof, at least one partial structure selected from the group consisting of a diene skeleton, a silicone skeleton, a urethane skeleton, a 4- to 7-membered ring lactone skeleton, an alkyl group having from 6 to 30 carbon atoms and an alkylene group having from 6 to 30 carbon atoms, a production method thereof, a resin composition molded body obtained by using the resin composition, and a production method thereof.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: February 14, 2023
    Assignee: SOMAR CORPORATION
    Inventors: Hirohisa Ishizaki, Akira Ochiai
  • Patent number: 11407159
    Abstract: The present invention is a method that enables continuous injection molding of a thermosetting resin composition and reuse of an unnecessary part produced during the molding. The method includes injecting a thermosetting resin composition into a mold while a curing reaction of the resin composition is incomplete. The thermosetting resin composition is then cooled in the mold until becoming semi-cured and removed as a semi-cured product from the mold. The semi-cured product is separated from the unnecessary part and separately heated to progress a thermosetting reaction of the thermosetting resin composition. The unnecessary part may be used as a reworked raw material by regrinding the unnecessary part and mixing it with a fresh thermosetting resin composition. Then, a resultant mixture is used to perform a new injection molding.
    Type: Grant
    Filed: April 18, 2016
    Date of Patent: August 9, 2022
    Assignee: SOMAR CORPORATION
    Inventors: Hirohisa Ishizaki, Akira Ochiai
  • Patent number: 11225644
    Abstract: A method for culturing cells by which the diameter of cell aggregates can be controlled, and by which a large amount of cells can be obtained, a cell aggregate obtained by the method, a cell aggregation control agent, and a medium containing the cell aggregation control agent, are provided. A method for culturing cells by suspension culture, which method includes an aggregation control step of adding a substance that inhibits a cell adhesion molecule(s) of the cells to a medium to control cell aggregation of the cells, and the like are provided.
    Type: Grant
    Filed: January 27, 2016
    Date of Patent: January 18, 2022
    Assignees: SOMAR CORPORATION, THE UNIVERSITY OF TOKYO
    Inventors: Yasuyuki Sakai, Ikki Horiguchi, Kumiko Matsunaga, Shunji Hayasaka
  • Patent number: 11125917
    Abstract: A light-shading member for an optical device which has excellent reflection preventing performance can be manufactured by a simple process and can be applied to an optical device which is small and thin. Based on JIS B0601: 2001, the arithmetical mean deviation of the assessed profile Ra of the surface of the light-shading member for an optical device is 0.5 ?m or more, and the difference (Rp-Rv) between the maximum profile peak height Rp and the maximum profile valley depth Rv is less than 3. The light-shading member for an optical device preferably has a substrate film and a light-shading layer. The light-shading layer is formed on at least one surface of the substrate film. Further, the light-shading layer has an average film thickness of 2 ?m-35 ?m.
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: September 21, 2021
    Assignee: SOMAR CORPORATION
    Inventor: Yui Togawa
  • Patent number: 11004582
    Abstract: A magnetic powder is obtained by removing a dispersion medium from a magnetic fluid that includes magnetic particles, a dispersant and the dispersion medium. A magnetic powder composition includes the magnetic powder and a resin material, and a magnetic powder composition molded body is obtained therefrom. A method of producing a magnetic powder includes removing a dispersion medium from a magnetic fluid containing magnetic particles, a dispersant and the dispersion medium, and powdering a solid component obtained by removing the dispersion medium. A method of producing a magnetic powder composition and a method of producing a magnetic powder composition molded product are also provided.
    Type: Grant
    Filed: July 17, 2014
    Date of Patent: May 11, 2021
    Assignee: SOMAR CORPORATION
    Inventors: Hirohisa Ishizaki, Akira Ochiai
  • Patent number: 10663065
    Abstract: An embodiment of the present invention provides a sealing member including a magnetic powder and at least one selected from the group consisting of a rubber material and a resin material, the magnetic powder being obtained by removing a dispersion medium from a magnetic fluid including magnetic particles, a dispersant and dispersion medium.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: May 26, 2020
    Assignee: SOMAR CORPORATION
    Inventors: Hirohisa Ishizaki, Akira Ochiai
  • Publication number: 20200038483
    Abstract: A material for treatment of brain injury, a method for treatment of brain injury, a material for regeneration of brain neurons, and a method for regeneration of brain neurons are provided. The material for treatment of brain injury contains a carrier on which at least one selected from the group consisting of N-cadherin, a fusion protein containing an entire or partial region of N-cadherin, and a fusion protein containing an entire or partial region of a protein having homology to N-cadherin is immobilized or coated.
    Type: Application
    Filed: June 28, 2019
    Publication date: February 6, 2020
    Applicants: PUBLIC UNIVERSITY CORPORATION NAGOYA CITY UNIVERSITY, NATIONAL UNIVERSITY CORPORATION TOKYO MEDICAL AND DENTAL UNIVERSITY, SOMAR CORPORATION
    Inventors: Kazunobu SAWAMOTO, Hideo JINNOU, Masato SAWADA, Itsuki AJIOKA, Toshihiro AKAIKE
  • Patent number: 10471158
    Abstract: An N-acetylglucosamine sugar chain group-containing compound which can easily reach cells/sites on which a vimentin and/or desmin protein(s) is/are exposed, which compound has excellent affinity to N-acetylglucosamine sugar chain-recognizing proteins; a drug delivery carrier compound comprising the compound; a preparation using the drug delivery earner compound; and a drug delivery system; are provided. These are an N-acetylglucosamine sugar chain group-containing compound having a weight average molecular weight within the range of 15,000 to 100,000; a drug delivery carrier compound comprising the compound; a preparation using the drug delivery carrier compound; and a drug delivery system.
    Type: Grant
    Filed: May 19, 2015
    Date of Patent: November 12, 2019
    Assignee: SOMAR CORPORATION
    Inventor: Hirohiko Ise
  • Patent number: 10407575
    Abstract: An epoxy resin powder coating material is provided, by which, while workability and coating property are not deteriorated, a coating film having excellent heat cycle resistance can be formed also on recent metal parts having a configuration of intricately combining a plurality of different kinds of metals of different material qualities and required to have high-standard performance. The epoxy resin powder coating material is manufactured by blending a spherical inorganic particle and acryl-based core shell type particle having an average particle diameter of 16 to 50 ?m in a bisphenol A-type epoxy resin, wherein an average particle diameter of the acryl-based core shell type particle is preferably 0.1 to 0.4 ?m.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: September 10, 2019
    Assignee: SOMAR CORPORATION
    Inventor: Masaaki Toyoda
  • Patent number: 10308766
    Abstract: Provided is a solvent-soluble polyimide copolymer which satisfies storage stability and heat resistance at high levels and has excellent utility. The polyimide copolymer is obtained by copolymerizing (A) 3,3?,4,4?-biphenyltetracarboxylic dianhydride with (B) diamine(s) and/or diisocyanate(s) and has no glass transition temperature observed at lower than 500° C. The component (B) is preferably at least one diamine and/or diisocyanate represented by the following Formulae (1) to (3): (wherein, X represents an amino group or an isocyanate group; R1 to R8 each independently represent a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, an alkenyl group having 2 to 4 carbon atoms or an alkoxy group having 1 to 4 carbon atoms; and at least one of the R1 to R8 is not a hydrogen atom).
    Type: Grant
    Filed: April 17, 2014
    Date of Patent: June 4, 2019
    Assignee: SOMAR CORPORATION
    Inventor: Yoshiyasu Takiue
  • Patent number: 10246555
    Abstract: Provided are: an oligomer of polyimide copolymer which is an intermediate of a polyimide copolymer having excellent utility and satisfying solvent solubility, storage stability and heat resistance at high levels; a polyimide copolymer obtained therefrom; and their production methods. The oligomer of polyimide copolymer and the polyimide copolymer are obtained by copolymerizing (A) 3,3?,4,4?-biphenyltetracarboxylic dianhydride and/or 3,3?,4,4?-diphenylsulfonetetracarboxylic dianhydride with (B) at least one diamine and/or diisocyanate represented by the following Formulae (1) to (3): (wherein, X represents an amino group or an isocyanate group; R1 to R8 each independently represent a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, an alkenyl group having 2 to 4 carbon atoms or an alkoxy group having 1 to 4 carbon atoms; and at least one of the R1 to R8 is not a hydrogen atom).
    Type: Grant
    Filed: April 17, 2014
    Date of Patent: April 2, 2019
    Assignee: Somar Corporation
    Inventor: Yoshiyasu Takiue