Patents Assigned to Kunimine Industries Co., Ltd.
  • Patent number: 11718533
    Abstract: A power storage device, containing two electrodes, and a plate-like crystal structure smectite-based clay film between the electrodes.
    Type: Grant
    Filed: January 8, 2020
    Date of Patent: August 8, 2023
    Assignee: KUNIMINE INDUSTRIES CO., LTD.
    Inventors: Yuta Goto, Susumu Shinoki, Atsutomo Tsuchiya, Tomohiro Ito, Kazuhiro Tachibana
  • Publication number: 20230136323
    Abstract: A spheroid formation promoter, including: inorganic particles having adsorbability as an active ingredient; and a method of promoting spheroid formation, including the step of: mixing a dispersion liquid of the spheroid formation promoter and a cell suspension to obtain a mixture in which the inorganic particles having adsorbability contained in the spheroid formation promoter are dispersed, and culturing a cell contained in the obtained mixture to promote spheroid formation.
    Type: Application
    Filed: March 18, 2021
    Publication date: May 4, 2023
    Applicants: KUNIMINE INDUSTRIES CO., LTD., OSAKA UNIVERSITY
    Inventors: Munehiro KUBOTA, Kazutake TSUJIKAWA
  • Publication number: 20220089450
    Abstract: A power storage device, containing two electrodes, and a plate-like crystal structure smectite-based clay film between the electrodes.
    Type: Application
    Filed: January 8, 2020
    Publication date: March 24, 2022
    Applicant: KUNIMINE INDUSTRIES CO., LTD.
    Inventors: Yuta GOTO, Susumu SHINOKI, Atsutomo TSUCHIYA, Tomohiro ITO, Kazuhiro TACHIBANA
  • Patent number: 11117288
    Abstract: A montmorillonite slurry, containing a lithium-immobilized montmorillonite having a cation exchange capacity of 50 meq/100 g or less, ammonia, water, and an organic solvent, in which the organic solvent includes at least one kind of organic solvent selected from the group consisting of acetonitrile and methyl ethyl ketone, the proportion occupied by the organic solvent in the total amount of the water and the organic solvent in the slurry is 10% by mass or more and 90% by mass or less, and the content of ammonia in the slurry is 0.1 mmol or more per gram of the lithium-immobilized montmorillonite in the slurry; a method of producing the same; and a clay film.
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: September 14, 2021
    Assignee: KUNIMINE INDUSTRIES CO., LTD.
    Inventor: Munehiro Kubota
  • Patent number: 11034140
    Abstract: Disclosed herein is a coating agent containing a synthetic organically-modified clay comprising a synthetic clay and an organic modification agent, a resin, and an organic solvent, wherein the organic solvent is contained in an amount within the range of 5-70 parts by weight with respect to 30 parts by weight of the resin, and contains at least two selected from the group consisting of toluene, xylene, and ethylbenzene; a protective film using the same; and a product provided with the protective film.
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: June 15, 2021
    Assignees: National Institute of Advanced Industrial Science and Technology, Kunimine Industries Co., Ltd.
    Inventors: Takeo Ebina, Ryo Ishii, Hiromichi Hayashi, Yoshito Wakui, Emiko Tomon, Yasuhiro Saura, Midori Saura, Yasukatu Matukawa, Shinsuke Kimura
  • Publication number: 20190009431
    Abstract: A montmorillonite slurry, containing a lithium-immobilized montmorillonite having a cation exchange capacity of 50 meq/100 g or less, ammonia, water, and an organic solvent, in which the organic solvent includes at least one kind of organic solvent selected from the group consisting of acetonitrile and methyl ethyl ketone, the proportion occupied by the organic solvent in the total amount of the water and the organic solvent in the slurry is 10% by mass or more and 90% by mass or less, and the content of ammonia in the slurry is 0.1 mmol or more per gram of the lithium-immobilized montmorillonite in the slurry; a method of producing the same; and a clay film.
    Type: Application
    Filed: October 20, 2017
    Publication date: January 10, 2019
    Applicant: KUNIMINE INDUSTRIES CO., LTD.
    Inventor: Munehiro KUBOTA
  • Patent number: 10175183
    Abstract: An agent for searching for protein crystallization conditions, containing a water-swellable layered silicate having a fluorine atom and a hydroxyl group, wherein the fluorine atom is covalently bonded to the silicate by isomorphous substitution with the hydroxyl group. A method of searching for protein crystallization conditions, which comprises a step of mixing the agent for searching for protein crystallization conditions described above and a solution in which a protein is dissolved.
    Type: Grant
    Filed: March 29, 2012
    Date of Patent: January 8, 2019
    Assignees: KUNIMINE INDUSTRIES CO., LTD., TOKYO UNIVERSITY OF SCIENCE EDUCATIONAL FOUNDATION ADMINISTRATIVE ORGANIZATION
    Inventors: Keiichi Kurosaka, Munehiro Kubota, Kengo Sakaguchi, Keita Ino, Itsumi Udagawa, Kazuki Iwabata, Yoichi Takakusagi, Yasutaka Seki
  • Publication number: 20130344523
    Abstract: An agent for searching for protein crystallization conditions, containing a water-swellable layered silicate having a fluorine atom and a hydroxyl group, wherein the fluorine atom is covalently bonded to the silicate by isomorphous substitution with the hydroxyl group. A method of searching for protein crystallization conditions, which comprises a step of mixing the agent for searching for protein crystallization conditions described above and a solution in which a protein is dissolved.
    Type: Application
    Filed: March 29, 2012
    Publication date: December 26, 2013
    Applicants: TOKYO UNIVERSITY OF SCIENCE EDUCATIONAL FOUNDATION ADMINISTRATIVE ORGANIZATION, KUNIMINE INDUSTRIES CO., LTD.
    Inventors: Keiichi Kurosaka, Munehiro Kubota, Kengo Sakaguchi, Keita Ino, Itsumi Udagawa, Kazuki Iwabata, Yoichi Takakusagi, Yasutaka Seki
  • Patent number: 6403050
    Abstract: There is disclosed calcium silicates formed by reacting a silicic acid substance comprising an amorphous silicic acid gel obtained from clay minerals with a calcium compound. There also is disclosed a process for producing the same, and an inorganic antibacterial material using the same. The calcium silicates of the present invention have a high cationic exchange capacity and are excellent in the adsorbability of heavy metals. The inorganic antibacterial material according to the present invention can carry a sufficient amount of silver ions or silver complex ions and can be dispersed stably, for example, in a synthetic resin or the like. The production process according to the present invention can produce inorganic antibacterial material which are highly white and can be used suitably for various uses, and have sufficient antibacterial power.
    Type: Grant
    Filed: April 28, 2000
    Date of Patent: June 11, 2002
    Assignee: Kunimine Industries Co., Ltd.
    Inventors: Masahiro Maeno, Harumichi Kuwabara, Yasuhiko Kunimine
  • Patent number: 6007615
    Abstract: There is disclosed a water-swellable composition that comprises a water-swellable clay, an asphalt, and at least one selected from the group consisting of temperature-sensitivity improving agents and reinforcing fillers. This water-preventing sealant can be produced relatively easily at a low cost, it is excellent in water-preventing performance, long-term stability, and self-sealing property, it has adhesiveness as well as shape-retainability and heat resistance, it is relatively low in compression impact resilience, it is excellent in ability to follow a substrate at the time of the application, and it is also excellent in applicability.
    Type: Grant
    Filed: April 8, 1998
    Date of Patent: December 28, 1999
    Assignee: Kunimine Industries Co., Ltd.
    Inventors: Keisuke Kato, Hiromichi Sugiyama, Yuji Kawaguchi, Takeshi Nakamura
  • Patent number: 5704970
    Abstract: There is disclosed a water-preventing sealant with plasticity, comprising 10 to 60% by weight of a gelled base oil (i) obtained by conducting a gelling reaction of a mixture of 100 parts by weight of an oil, 10 to 100 parts by weight of a fatty acid and a metal hydroxide or oxide contained in an amount sufficient to convert the fatty acid into a metal salt, and 40 to 90% by weight of at least one member (ii) selected from the group consisting of natural and synthetic water-swellable clay minerals. This sealant has excellent water-preventing performance, stability in lapse of time and self-sealing properties, is excellent in heat stability, and has clayey plasticity to ensure high work-efficiency, and also has water-swelling properties suitable for use in water-preventing work and so on.
    Type: Grant
    Filed: December 7, 1995
    Date of Patent: January 6, 1998
    Assignee: Kunimine Industries Co., Ltd.
    Inventors: Yuji Kawaguchi, Tomonori Nagaoka, Takeshi Nakamura, Hiroshi Kikuchi
  • Patent number: 5680830
    Abstract: There is disclosed an excrement treatment for small animals made up of small pieces containing bentonite and, if desired, wood powder or paper powder being formed in a shape of thin flat plates or waved plates, wherein the thickness of the small pieces of the excrement treatment is from 0.1 to 2 mm, and the average aspect ratio of the treatment is from 3 to 50; and a method of manufacturing the treatment. According to the treatment, making an excrement-incorporated mass small and solid, enabling a small amount of the litter to be discarded, and permitting the toilet for small animals to be made compact, can be done.
    Type: Grant
    Filed: August 28, 1995
    Date of Patent: October 28, 1997
    Assignee: Kunimine Industries Co., Ltd.
    Inventors: Yuji Kawaguchi, Masai Sato, Takashi Koyama