Patents by Inventor Junichiro Maehara

Junichiro Maehara 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).

  • Polyolefin-based resin composition
    Patent number: 4703078
    Abstract: The polyolefin-based resin composition of the invention comprises (a) 100 parts by weight of a polyolefin-based resin such as polyethylenes, polypropylenes and copolymers of ethylene and propylene, (b) from 20 to 300 parts by weight of a wax such as a petroleum wax and (c) from 20 to 300 parts by weight of a mineral oil and/or a synthetic oil and the components are melted together into a uniform melt and then molded and solidified into a block or slab which is useful as a material for carving works. The material can be carved or engraved even by a child or a beginner in the art of carving works to create fine sculptures.
    Type: Grant
    Filed: April 23, 1986
    Date of Patent: October 27, 1987
    Assignee: Idemitsu Kosan Company Limited
    Inventors: Junichiro Maehara, Kenzo Izumi, Ikuo Hirokawa
  • Process for preparing fibrous materials by wet method
    Patent number: 4141942
    Abstract: This invention relates to a process for preparing fibrous materials by wet method. Fibrous materials with excellent properties can be obtained by feeding the starting solution to the interface area of two phases of the coagulation bath.
    Type: Grant
    Filed: May 8, 1978
    Date of Patent: February 27, 1979
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventor: Junichiro Maehara
  • Process for preparing film by wet method
    Patent number: 4102959
    Abstract: This invention relates to a process for preparing a film having asymmetric cross-sectional structure by wet method. Films with excellent properties can be obtained by feeding the starting solution to the interface area of two phases of the coagulation bath to make said solution into a gel.
    Type: Grant
    Filed: April 7, 1977
    Date of Patent: July 25, 1978
    Assignee: Idemitsu Kosan Company, Ltd.
    Inventor: Junichiro Maehara