Patents by Inventor Yoshio Nagahama

Yoshio Nagahama 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: 8975433
    Abstract: Provided is a 2-cyanoacrylate-purifying method for decoloring a 2-cyanoacrylate which has been colored, and preventing further coloring of the 2-cyanoacrylate thus decolored. The 2-cyanoacrylate-purifying method includes the steps of: (a) adding a specific polyhydric aromatic compound to the 2-cyanoacrylate which has been colored; and (b) storing, at a temperature in a range of 0° C. to 40° C. for 0.5 day or more, the resulting mixture obtained in the step (a), and then subjecting the mixture to reduced pressure distillation.
    Type: Grant
    Filed: February 24, 2012
    Date of Patent: March 10, 2015
    Assignee: Taoka Chemical Co., Ltd.
    Inventors: Yoshio Nagahama, Yukinori Nishino, Hiroaki Yamamoto
  • Publication number: 20130331598
    Abstract: Provided is a 2-cyanoacrylate-purifying method for decoloring a 2-cyanoacrylate which has been colored, and preventing further coloring of the 2-cyanoacrylate thus decolored. The 2-cyanoacrylate-purifying method includes the steps of: (a) adding a specific polyhydric aromatic compound to the 2-cyanoacrylate which has been colored; and (b) storing, at a temperature in a range of 0° C. to 40° C. for 0.5 day or more, the resulting mixture obtained in the step (a), and then subjecting the mixture to reduced pressure distillation.
    Type: Application
    Filed: February 24, 2012
    Publication date: December 12, 2013
    Applicant: TAOKA CHEMICAL CO., LTD.
    Inventors: Yoshio Nagahama, Yukinori Nishino, Hiroaki Yamamoto
  • Publication number: 20070218229
    Abstract: According to the present invention, a composite container for an adhesive includes: an aluminum container which contains an adhesive; and a resin outer container for holding the aluminum container, the resin outer container being provided with (a) window holes on both side wall surfaces of the resin outer container and (b) two press sections for indirectly pressing the aluminum container through the window holes, each of the press sections being provided with a deformable plate-like spring whose one end is fixed to an upper end of the press section which upper end is in contact with the aluminum container.
    Type: Application
    Filed: March 13, 2007
    Publication date: September 20, 2007
    Applicant: Taoka Chemical Co., Ltd.
    Inventors: Yoshio Nagahama, Eizo Kajigaki
  • Patent number: 5984099
    Abstract: There is provided a container for display and storage comprising a body rectangular base sheet and a lid rectangular base sheet connected in a double spread sheet (or folded) condition by a folding line along the longitudinal direction. The rectangular base sheet on the body side is provided with a transparent cover in which an article can be contained and an opening is provided in the reverse face through which the article can be freely taken out and put in.
    Type: Grant
    Filed: April 24, 1998
    Date of Patent: November 16, 1999
    Assignees: Taoka Chemical Co., Ltd., Cemedine Co., Ltd.
    Inventors: Keizi Shimizu, Kuninori Ide, Yoshio Nagahama, Takashi Nogi, Chiaki Hata, Naomi Okamura, Akio Nimura, Takao Hino, Masayuki Fukai
  • Patent number: 5678731
    Abstract: The present invention relates to an improvement of a discharge container with a nozzle for housing a liquid, for example, an instantaneous adhesive or another moisture curing type adhesive, various adhesives such as solvent volatilizing type adhesive, various chemicals, foods, inks and medical supplies. The present invention is a discharge container with a nozzle which includes a container body for housing contents, a nozzle threadly attached to the container body, and a dual-shoulder type protective frame having a neck hole, wherein the base end of the mouth of the container body is inserted through the neck hole of the dual-shoulder type protective frame, and the container body is threadly attached to the nozzle, thereby allowing them to be made a one-piece structure.
    Type: Grant
    Filed: August 24, 1995
    Date of Patent: October 21, 1997
    Assignees: Taoka Chemical Company, Limited, Cemedine Company, Limited
    Inventors: Naomi Okamura, Akio Nimura, Masayuki Fukai, Chiaki Hata, Yoshio Nagahama, Keizi Shimizu
  • Patent number: D557340
    Type: Grant
    Filed: March 22, 2006
    Date of Patent: December 11, 2007
    Assignee: Taoka Chemical Co., Ltd.
    Inventors: Yoshio Nagahama, Eizo Kajigaki