Patents by Inventor Katsuhiro Murano

Katsuhiro Murano 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).

  • Publication number: 20190337892
    Abstract: A method of purifying dimethyl sulfoxide includes distilling a dimethyl sulfoxide-containing liquid in the presence of sodium carbonate under a reduced pressure in an inert gas atmosphere to distill out dimethyl sulfoxide, an amount of the sodium carbonate with respect to 100 g of pure dimethyl sulfoxide in a residual liquid after the distillation being 6 times or more the amount of the sodium carbonate with respect to 100 g of the pure dimethyl sulfoxide in the dimethyl sulfoxide-containing liquid before the distillation.
    Type: Application
    Filed: July 18, 2019
    Publication date: November 7, 2019
    Inventors: Haruo Murano, Katsuhiro Shibayama
  • Patent number: 10435360
    Abstract: A method of purifying dimethyl sulfoxide includes distilling a dimethyl sulfoxide-containing liquid in the presence of sodium carbonate in an inert gas atmosphere to distill out dimethyl sulfoxide, an amount of the sodium carbonate with respect to 100 g of pure dimethyl sulfoxide in a residual liquid after the distillation being 6 times or more the amount of the sodium carbonate with respect to 100 g of the pure dimethyl sulfoxide in the dimethyl sulfoxide-containing liquid before the distillation.
    Type: Grant
    Filed: November 21, 2016
    Date of Patent: October 8, 2019
    Assignee: Toray Fine Chemicals Co., Ltd.
    Inventors: Haruo Murano, Katsuhiro Shibayama
  • Patent number: 6235074
    Abstract: There is provided a process of recovering copper from winding composed of an enameled copper wire having a polyester and/or a polyurethane based insulating coating thereon, and the process includes the steps of immersing the winding into an alkali solution, removing alkali attaching to the winding, and melting the winding using high frequency heating.
    Type: Grant
    Filed: April 8, 1997
    Date of Patent: May 22, 2001
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Katsuhiro Murano, Fumitoshi Yamashita, Hiroshi Onishi, Yoshikazu Yamagata, Takahiko Terada
  • Patent number: 5927861
    Abstract: A motor bearing device includes a bearing member, and a rotary shaft made of steel into which ions of metal element and carbon ions are implanted via a surface of the rotary shaft. The rotary shaft is slidable relative to the bearing member. The metal element is selected from the group consisting of metal elements in the IVa, Va, and VIa groups of the periodic system. Lubricant is provided between the bearing member and the rotary shaft. The surface of the rotary shaft opposes the bearing member.
    Type: Grant
    Filed: April 1, 1997
    Date of Patent: July 27, 1999
    Assignees: Matsushita Electric Industrial Co., Ltd., Nippon Steel Corporation
    Inventors: Fumitoshi Yamashita, Katsuhiro Murano, Seiji Kurozumi, Kazunori Hayashi, Kanao Fukuda, Masato Inayoshi
  • Patent number: 5438448
    Abstract: The present invention discloses the construction and manufacturing method of a turning mirror which has a single face or multiple face reflector mirror for scanning laser light in a laser beam printer and the like. The disclosed construction and manufacturing method achieve a low-cost and high-accuracy turning mirror. Photo-setting resin is coated onto the surface of a base mount having a rotating shaft at its center. The surface of the base serves as a substrate for reflector mirror. A glass plate having a good flatness is placed into contact with the resin coating layer. Resin setting light is operated to irradiate the resin coating layer with the peripheral side fringe of the resin coating layer partially or entirely open in order to set the resin coating layer. The glass plate is then separated from the resin coating layer, allowing the flatness of the glass plate to be transferred to the resin coating layer. The turning mirror is then fabricated by attaching a metallic film onto the resin coating layer.
    Type: Grant
    Filed: December 30, 1992
    Date of Patent: August 1, 1995
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Tomoko Nishimura, Tomiaki Sakano, Katsuhiro Murano
  • Patent number: 4748865
    Abstract: A motor coupled with a worm gear for output power transmission has a motor shaft with a worm held in mesh with the worm gear. The worm gear has a plurality of circumferentially spaced holes. An annular damper of rubber has a plurality of first circumferentially spaced projections on one axial surface thereof and fitted respectively in the holes in the worm gear, and a plurality of second circumferentially spaced projections on the opposite axial surface thereof and fitted respectively in a plurality of circumferentially spaced holes defined in a torque transmission disc coupled to a power output shaft for corotation.
    Type: Grant
    Filed: May 22, 1985
    Date of Patent: June 7, 1988
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Norio Umezawa, Yohji Maki, Katsuhiro Murano