Patents by Inventor Sinya Mizone

Sinya Mizone 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: 7072485
    Abstract: A meshed etching tunnel made of aluminum is disposed inside a cylindrical quartz reactive chamber, and speaker diaphragms are aligned inside the tunnel at a certain interval. Opposing electrodes are disposed outside the reactive chamber. Plasma is applied at low temperature to prevent heat deformation. Uniform wettability is also assured by the use of the meshed etching tunnel, achieving high productivity. Uniform wettability further stabilizes bonding and improves bonding strength of the speaker diaphragm onto the voice coil and edge, offering a speaker with improved input power durability.
    Type: Grant
    Filed: July 3, 2003
    Date of Patent: July 4, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hitoshi Sato, Sinya Mizone, Kiyoshi Ikeda, Hiroko Yamazaki
  • Publication number: 20040094356
    Abstract: A method for manufacturing a speaker diaphragm used for a range of audio equipment, a speaker diaphragm made using this manufacturing method, and a speaker employing such diaphragms. This manufacturing method for a speaker diaphragm offers good productivity, preventing deviation in wettability and heat deformation of speaker diaphragms in plasma treatment, and also offers a speaker with good input power durability. A meshed etching tunnel (2) made of aluminum is disposed inside a cylindrical quartz reactive chamber (1), and speaker diaphragms (4) are aligned inside the tunnel at a certain interval. Opposing electrodes (5) are disposed outside the reactive chamber (1). Plasma is applied at low temperature to prevent heat deformation. Uniform wettability is also assured by the use of the meshed etching tunnel (2), achieving high productivity.
    Type: Application
    Filed: July 3, 2003
    Publication date: May 20, 2004
    Inventors: Hitoshi Sato, Sinya Mizone, Kiyoshi Ikeda, Hiroko Yamazaki
  • Publication number: 20040094357
    Abstract: A method for manufacturing a speaker diaphragm used for a range of audio equipment, a speaker diaphragm made using this manufacturing method, and a speaker employing such diaphragm. This manufacturing method for a speaker diaphragm offers good productivity, preventing deviation in wettability and heat deformation of speaker diaphragms in plasma treatment, and also offers a speaker with good input power durability. A meshed etching tunnel (2) made of aluminum is disposed inside a cylindrical quartz reactive chamber (1), and speaker diaphragms (4) are aligned inside the tunnel at a certain interval. Opposing electrodes (5) are disposed outside the reactive chamber (1). Plasma is applied at low temperature to prevent heat deformation. Uniform wettability is also assured by the use of the meshed etching tunnel (2), achieving high productivity.
    Type: Application
    Filed: July 3, 2003
    Publication date: May 20, 2004
    Inventors: Hitoshi Sato, Sinya Mizone, Kiyoshi Ikeda, Hiroko Yamazaki
  • Patent number: 6627140
    Abstract: A meshed etching tunnel made of aluminum is disposed inside a cylindrical quartz reactive chamber, and speaker diaphragms are aligned inside the tunnel at a certain interval. Opposing electrodes are disposed outside the reactive chamber. Plasma is applied at low temperature to prevent heat deformation. Uniform wettability is also assured by the use of the meshed etching tunnel, achieving high productivity. Uniform wettability further stabilizes bonding and improves bonding strength of the speaker diaphragm onto the voice coil and edge, offering a speaker with improved input power durability.
    Type: Grant
    Filed: May 22, 2000
    Date of Patent: September 30, 2003
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hitoshi Sato, Sinya Mizone, Kiyoshi Ikeda, Hiroko Yamazaki
  • Patent number: 6543574
    Abstract: It is an object of the present invention to provide a speaker edge which is high in strength, less in scattering of f0, high in waterproofness, small in amplitude at the time of resonance, easy to mold, and easy to be integrated with a cone body. That is, the present invention provides a speaker edge constituted by a molding which is molded in a manner so that a speaker edge raw material composition containing isocyanate and polyol is injected into a cavity of a mold by an agitating/mixing apparatus and subjected to reaction, foaming and curing in the cavity.
    Type: Grant
    Filed: January 17, 2001
    Date of Patent: April 8, 2003
    Assignees: Inoac Corporation, Matsushita Electric Industrial Co., Ltd.
    Inventors: Sinya Mizone, Shinya Kaneko, Kiyosi Ikeda, Hiroko Yamasaki