Patents by Inventor Daiji Tahara

Daiji Tahara 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: 20170183252
    Abstract: Provide is a heat-resistant roll with improved effectively characteristics, a production method thereof, and a method of producing sheet glass using the heat-resistant roll. A method of producing a heat-resistant roll equipped with a roll portion containing 5% by weight or more of clay includes: a grinding step (S101) of grinding a roll surface of the roll portion; and a surface treatment step (S102) of performing surface treatment of smoothening the ground roll surface in a wet state.
    Type: Application
    Filed: February 16, 2017
    Publication date: June 29, 2017
    Applicant: NICHIAS CORPORATION
    Inventors: Masaaki NAKAYAMA, Daiji TAHARA, Kouji IWATA, Kazuhisa WATANABE
  • Patent number: 9604867
    Abstract: A heat-resistant roll with improved characteristics, a production method thereof, and a method of producing sheet glass using the heat-resistant roll. A method of producing a heat-resistant roll equipped with a roll portion containing 5% by weight or more of clay includes: a grinding step (S101) of grinding a roll surface of the roll portion; and a surface treatment step (S102) of performing surface treatment of smoothening the ground roll surface in a wet state.
    Type: Grant
    Filed: August 9, 2012
    Date of Patent: March 28, 2017
    Assignee: NICHIAS CORPORATION
    Inventors: Masaaki Nakayama, Daiji Tahara, Kouji Iwata, Kazuhisa Watanabe
  • Patent number: 8876680
    Abstract: A disc roll includes a plurality of annular disc members each defining a hole and having a peripheral surface; and a rotary shaft fitted into the holes of the annular disc members by insertion, whereby the peripheral surfaces of the disc members serve as a conveying surface of the disc roll. The disc members include an inorganic fiber, mica and a clay having a content of particle components that have a particle size of 5 ?m or larger of not higher than 30% by weight based on the weight of the clay.
    Type: Grant
    Filed: June 5, 2014
    Date of Patent: November 4, 2014
    Assignee: Nichias Corporation
    Inventors: Masaaki Nakayama, Daiji Tahara, Masafumi Igo
  • Publication number: 20140283556
    Abstract: A disc roll includes a plurality of annular disc members each defining a hole and having a peripheral surface; and a rotary shaft fitted into the holes of the annular disc members by insertion, whereby the peripheral surfaces of the disc members serve as a conveying surface of the disc roll. The disc members include an inorganic fiber, mica and a clay having a content of particle components that have a particle size of 5 ?m or larger of not higher than 30% by weight based on the weight of the clay.
    Type: Application
    Filed: June 5, 2014
    Publication date: September 25, 2014
    Inventors: Masaaki Nakayama, Daiji Tahara, Masafumi Igo
  • Patent number: 8776373
    Abstract: A disc roll includes a plurality of annular disc members each defining a hole and having a peripheral surface; and a rotary shaft fitted into the holes of the annular disc members by insertion, whereby the peripheral surfaces of the disc members serve as a conveying surface of the disc roll. The disc members include an inorganic fiber, mica and a clay having a content of particle components that have a particle size of 5 ?m or larger of not higher than 30% by weight based on the weight of the clay.
    Type: Grant
    Filed: January 2, 2014
    Date of Patent: July 15, 2014
    Assignee: Nichias Corporation
    Inventors: Masaaki Nakayama, Daiji Tahara, Masafumi Igo
  • Publication number: 20140116093
    Abstract: A disc roll includes a plurality of annular disc members each defining a hole and having a peripheral surface; and a rotary shaft fitted into the holes of the annular disc members by insertion, whereby the peripheral surfaces of the disc members serve as a conveying surface of the disc roll. The disc members include an inorganic fiber, mica and a clay having a content of particle components that have a particle size of 5 ?m or larger of not higher than 30% by weight based on the weight of the clay.
    Type: Application
    Filed: January 2, 2014
    Publication date: May 1, 2014
    Applicant: Nichias Corporation
    Inventors: Masaaki Nakayama, Daiji Tahara, Masafumi Igo
  • Patent number: 8636633
    Abstract: A disc roll includes a plurality of annular disc members each defining a hole and having a peripheral surface; and a rotary shaft fitted into the holes of the annular disc members by insertion, whereby the peripheral surfaces of the disc members serve as a conveying surface of the disc roll. The disc members include an inorganic fiber, mica and a clay having a content of particle components that have a particle size of 5 ?m or larger of not higher than 30% by weight based on the weight of the clay.
    Type: Grant
    Filed: March 30, 2004
    Date of Patent: January 28, 2014
    Assignee: Nichias Corporation
    Inventors: Masaaki Nakayama, Daiji Tahara, Masafumi Igo
  • Publication number: 20120298476
    Abstract: Provide is a heat-resistant roll with improved effectively characteristics, a production method thereof, and a method of producing sheet glass using the heat-resistant roll. A method of producing a heat-resistant roll equipped with a roll portion containing 5% by weight or more of clay includes: a grinding step (S101) of grinding a roll surface of the roll portion; and a surface treatment step (S102) of performing surface treatment of smoothening the ground roll surface in a wet state.
    Type: Application
    Filed: August 9, 2012
    Publication date: November 29, 2012
    Applicant: NICHIAS CORPORATION
    Inventors: Masaaki NAKAYAMA, Daiji TAHARA, Kouji IWATA, Kazuhisa WATANABE
  • Patent number: 8303377
    Abstract: Provide is a heat-resistant roll with improved effectively characteristics, a production method thereof, and a method of producing sheet glass using the heat-resistant roll. A method of producing a heat-resistant roll equipped with a roll portion containing 5% by weight or more of clay includes: a grinding step (S101) of grinding a roll surface of the roll portion; and a surface treatment step (S102) of performing surface treatment of smoothening the ground roll surface in a wet state.
    Type: Grant
    Filed: September 10, 2009
    Date of Patent: November 6, 2012
    Assignee: Nichias Corporation
    Inventors: Masaaki Nakayama, Daiji Tahara, Kouji Iwata, Kazuhisa Watanabe
  • Publication number: 20100064729
    Abstract: Provide is a heat-resistant roll with improved effectively characteristics, a production method thereof, and a method of producing sheet glass using the heat-resistant roll. A method of producing a heat-resistant roll equipped with a roll portion containing 5% by weight or more of clay includes: a grinding step (S101) of grinding a roll surface of the roll portion; and a surface treatment step (S102) of performing surface treatment of smoothening the ground roll surface in a wet state.
    Type: Application
    Filed: September 10, 2009
    Publication date: March 18, 2010
    Applicant: NICHIAS CORPORATION
    Inventors: Masaaki Nakayama, Daiji Tahara, Kouji Iwata, Kazuhisa Watanabe
  • Publication number: 20040220032
    Abstract: The present invention relates to a disc roll comprising: a plurality of annular disc members each defining a hole and having a peripheral surface; and a rotary shaft fitted into the holes of the annular disc members by insertion, thereby the peripheral surfaces of the disc members serve as a conveying surface of the disc roll, wherein said disc members have a compression deformation rate of 0.05 to 0.3 mm under a load of 10 kgf/cm, or wherein the disc members comprise an inorganic fiber, mica and a clay having a content of particle components that have a particle size of 5 &mgr;m or larger of not higher than 30% by weight based on the weight of the clay. Also disclosed are methods for producing the disc roll and disc member base materials for obtaining the disc members.
    Type: Application
    Filed: March 30, 2004
    Publication date: November 4, 2004
    Applicant: Nichias Corporation
    Inventors: Masaaki Nakayama, Daiji Tahara, Masafumi Igo