Patents by Inventor Tadanao Shinozaki

Tadanao Shinozaki 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).

  • PREFORM PRODUCTION APPARATUS FOR PRECISION PRESS MOLDING, PRODUCTON METHOD OF A PREFORM FOR PRECISION PRESS MOLDING AND PRODUCTION METHOD OF AN OPTICAL ELEMENT
    Publication number: 20120011890
    Abstract: A preform production apparatus for precision press molding, which is downsized but can produce preforms at a lower cost, and a production method thereof using the apparatus are provided. The production method of a preform for precision press molding includes forming a molten glass body C by way of receiving and cutting molten glass A, being flowed continuously from a discharge nozzle 2, by a support member 1 or by way of allowing molten glass to fall in drops from a discharge nozzle 2 and receiving thereof by a support member 1, and transferring the molten glass body C from the support member 1 to a mold 5 by way of displacing the support member to near the mold 5, disposed not to be beneath the discharge nozzle 2, while increasing the viscosity of the molten glass body C on the support member 1.
    Type: Application
    Filed: September 22, 2011
    Publication date: January 19, 2012
    Applicant: OHARA, INC.
    Inventors: Ryousuke Sakai, Tadanao Shinozaki, Shinobu Aoe
  • Preform production apparatus for precision press molding, production method of a preform for precision press molding and production method of an optical element
    Patent number: 8056364
    Abstract: A preform production apparatus for precision press molding, which is downsized but can produce preforms at a lower cost, and a production method thereof using the apparatus are provided. The production method of a preform for precision press molding includes forming a molten glass body C by way of receiving and cutting molten glass A, being flowed continuously from a discharge nozzle 2, by a support member 1 or by way of allowing molten glass to fall in drops from a discharge nozzle 2 and receiving thereof by a support member 1, and transferring the molten glass body C from the support member 1 to a mold 5 by way of displacing the support member to near the mold 5, disposed not to be beneath the discharge nozzle 2, while increasing the viscosity of the molten glass body C on the support member 1.
    Type: Grant
    Filed: October 24, 2008
    Date of Patent: November 15, 2011
    Assignee: Ohara, Inc.
    Inventors: Ryousuke Sakai, Tadanao Shinozaki, Shinobu Aoe
  • Preform production apparatus for precision press molding, production method of a preform for precision press molding and production method of an optical element
    Publication number: 20090107180
    Abstract: A preform production apparatus for precision press molding, which is downsized but can produce preforms at a lower cost, and a production method thereof using the apparatus are provided. The production method of a preform for precision press molding includes forming a molten glass body C by way of receiving and cutting molten glass A, being flowed continuously from a discharge nozzle 2, by a support member 1 or by way of allowing molten glass to fall in drops from a discharge nozzle 2 and receiving thereof by a support member 1, and transferring the molten glass body C from the support member 1 to a mold 5 by way of displacing the support member to near the mold 5, disposed not to be beneath the discharge nozzle 2, while increasing the viscosity of the molten glass body C on the support member 1.
    Type: Application
    Filed: October 24, 2008
    Publication date: April 30, 2009
    Inventors: Ryousuke Sakai, Tadanao Shinozaki, Shinobu Aoe