Patents by Inventor Yuji Tanonaka

Yuji Tanonaka 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).

  • Treatment method for fluororesin pellets
    Patent number: 9340633
    Abstract: Provided is a treatment method for fluororesin pellets to remove hydrofluoric acid released from fluororesin pellets obtained by melt-molding a melt-moldable fluororesin. The treatment method comprises bringing a hydrofluoric acid-removing medium selected from warm water of from 30 to 200° C., steam of from 100 to 200° C. and warm wind of from 40 to 200° C. into contact with fluororesin pellets obtained by melt-molding a melt-moldable fluororesin, and thereby treating the fluororesin pellets so that the amount of hydrofluoric acid released per kg of the resulting fluororesin pellets would be at most 5 ?g as determined after the storage of the resulting fluororesin pellets at 35° C. for 15 days.
    Type: Grant
    Filed: January 6, 2014
    Date of Patent: May 17, 2016
    Assignee: Asahi Glass Company, Limited
    Inventors: Satoshi Otsugu, Yuji Tanonaka, Atsushi Tsuji, Shigeru Aida, Akio Ogawa
  • TREATMENT METHOD FOR FLUORORESIN PELLETS
    Publication number: 20140121331
    Abstract: Provided is a treatment method for fluororesin pellets to remove hydrofluoric acid released from fluororesin pellets obtained by melt-molding a melt-moldable fluororesin. The treatment method comprises bringing a hydrofluoric acid-removing medium selected from warm water of from 30 to 200° C., steam of from 100 to 200° C. and warm wind of from 40 to 200° C. into contact with fluororesin pellets obtained by melt-molding a melt-moldable fluororesin, and thereby treating the fluororesin pellets so that the amount of hydrofluoric acid released per kg of the resulting fluororesin pellets would be at most 5 ?g as determined after the storage of the resulting fluororesin pellets at 35° C. for 15 days.
    Type: Application
    Filed: January 6, 2014
    Publication date: May 1, 2014
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Satoshi Otsugu, Yuji Tanonaka, Atsushi Tsuji, Shigeru Aida, Akio Senmyo