Patents by Inventor Tetsutaro Hashimura

Tetsutaro Hashimura 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).

  • Polyester layer support for photographic material
    Patent number: 5580709
    Abstract: Disclosed is a film constituted of a polyester, said film having a degree of roll set curl of not higher than 135 m.sup.-1 after being subjected to heat treatment, and having a degree of recovery curl of not higher than 45 m.sup.-1 after being subjected to hot water bath treatment.
    Type: Grant
    Filed: September 14, 1994
    Date of Patent: December 3, 1996
    Assignee: Konica Corporation
    Inventors: Hideyuki Kobayashi, Takatoshi Yajima, Kenji Nakanishi, Hiromitsu Araki, Hiroshi Naito, Yoshioki Okubo, Tetsutaro Hashimura
  • Photographic support
    Patent number: 5556739
    Abstract: A support for photographic use comprised of at least two polyester layers is disclosed, which comprises a first layer containing a first polyester and a second layer containing a second polyester adjacent to the first layer, the first polyester comprising a first monomer unit from a polyalkylene glycol and a second monomer unit from an aromatic dicarboxylic acid having a metal sulfonate group, wherein the difference between the second monomer unit content of the first polyester and that of the second polyester, .DELTA.SIP is not more than 5.5 mol %, the second monomer unit content being expressed based on the total content of monomer units from dicarboxylic acids contained in the polymer.
    Type: Grant
    Filed: March 14, 1994
    Date of Patent: September 17, 1996
    Assignee: Konica Corporation
    Inventors: Kenji Nakanishi, Takatoshi Yajima, Hiromitsu Araki, Hideyuki Kobayashi, Yoshioki Ohkubo, Tetsutaro Hashimura, Hiroshi Naito
  • Support for photographic material
    Patent number: 5387501
    Abstract: Disclosed is a support for a photographic material which comprises a multilayer film in which a layer of a copolymerized polyester is laminated on at least one surface of a polyester layer, wherein the copolymerized polyester contains an aromatic dicarboxylic acid having a metal sulfonate group as a copolymer component in an amount of 2 to 7 mole % based on all ester bond units and further a polyalkylene glycol as a copolymer component in an amount of 3 to 10% by weight based on the total weight of a polyester which is a reaction product.
    Type: Grant
    Filed: April 7, 1994
    Date of Patent: February 7, 1995
    Assignee: Konica Corporation
    Inventors: Takatoshi Yajima, Kenji Nakanishi, Hiromitsu Araki, Hideyuki Kobayashi, Yoshioki Okubo, Tetsutaro Hashimura, Hiroshi Naito
  • Multilayer polyester support of photographic material
    Patent number: 5372925
    Abstract: Disclosed is a film constituted of a polyester, said film having a degree of roll set curl of not higher than 135 m.sup.-1 after being subjected to heat treatment, and having a degree of recovery curl of not higher than 45 m.sup.-1 after being subjected to hot water bath treatment.
    Type: Grant
    Filed: May 25, 1993
    Date of Patent: December 13, 1994
    Assignee: Konica Corporation
    Inventors: Hideyuki Kobayashi, Takatoshi Yajima, Kenji Nakanishi, Hiromitsu Araki, Hiroshi Naito, Yoshioki Okubo, Tetsutaro Hashimura