Patents by Inventor Mamoru Sakaki

Mamoru Sakaki 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).

  • Recording medium and recording method by use thereof
    Patent number: 4686118
    Abstract: A recording medium is provided which comprises having an ink receiving layer provided on a substrate, the ink receiving layer comprising at least a mixture of a polymer capable of forming intermolecular hydrogen bond and a polymer incapable of forming intermolecular hydrogen bond. The recording medium may also be further provided with an ink permeable layer.
    Type: Grant
    Filed: January 23, 1986
    Date of Patent: August 11, 1987
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ryuichi Arai, Mamoru Sakaki
  • Recording medium and recording method utilizing the same
    Patent number: 4664952
    Abstract: A recording medium is provided which has a recording surface having a 60.degree. specular gloss of at least 30% according to JIS Z8741 and a Munsell lightness of at least 7.5 according to JIS Z8721. The recording medium may comprise an ink-receiving layer formed thereon. A recording method is also provided which employ the above mentioned recording medium.
    Type: Grant
    Filed: October 21, 1985
    Date of Patent: May 12, 1987
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ryuichi Arai, Mamoru Sakaki, Shinya Matsui
  • Recording medium
    Patent number: 4642247
    Abstract: A recording medium for recording with aqueous ink without direct contact of recording means therewith comprises an under layer and an upper layer provided thereon. The upper layer is formed of substantially water-resistant resin and is sufficiently thin to provide immediate water and air permeability and the under layer is more hydrophilic than the upper layer. There is also provided a recording process employing aqueous ink droplets and a recording medium as mentioned above.
    Type: Grant
    Filed: June 26, 1985
    Date of Patent: February 10, 1987
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hidemasa Mouri, Michiaki Tobita, Naonobu Eto, Shunzo Kouno, Kosuke Ohkura, Shigeo Toganoh, Ryuichi Arai, Mamoru Sakaki, Kazuo Iwata, Hiromi Shibasaki
  • Record-bearing member and ink-jet recording method by use thereof
    Patent number: 4636805
    Abstract: A record-bearing member comprises a substrate and an ink receiving layer provided on said substrate, which is capable of fixing an ink into said ink receiving layer within 3 minutes under the conditions of 20.degree. C. and 65% RH when the ink was attached onto the surface of said ink receiving layer at a proportion of 0.7 .mu.l per unit area (cm.sup.2) of said ink receiving layer.An ink-jet recording method performs recording through attachment of small droplets of an aqueous ink onto a record-bearing member, said record-bearing member comprising a substrate and an ink receiving layer provided on said substrate, which is capable of fixing an ink into said ink receiving layer within 3 minutes under the conditions of 20.degree. C. and 65% RH when the ink was attached onto the surface of said ink receiving layer at a proportion of 0.7 .mu.l per unit area (cm.sup.2) of said ink receiving layer.
    Type: Grant
    Filed: March 13, 1985
    Date of Patent: January 13, 1987
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shigeo Toganoh, Ryuichi Arai, Mamoru Sakaki