Patents by Inventor Megumi Yoshimura

Megumi Yoshimura 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).

  • Publication number: 20090142623
    Abstract: The present invention provides a magnetic recording medium capable of obtaining high recording density and also having a hardly charged magnetic layer. The magnetic recording tape 2 (magnetic recording medium) of a preferable embodiment has a magnetic layer 6 containing a SmCo magnetic fine particle 12 and a hydrophilic binder, wherein the SmCo magnetic fine particle 12 has a core 14 made of a SmCo nano particle and a coating layer 16 made of a hydrophilic polymer and coating at least a part of a surface of the core 14.
    Type: Application
    Filed: November 24, 2008
    Publication date: June 4, 2009
    Applicant: TDK Corporation
    Inventors: Nobuhiro JINGU, Mamoru Satoh, Kenichi Kitamura, Megumi Yoshimura
  • Publication number: 20090136783
    Abstract: The invention provides a magnetic recording medium with both weather resistance and high recording density. The magnetic recording medium of the invention has a magnetic layer comprising at least SmCo-based magnetic fine particles and a hydrophobic binder, wherein the SmCo-based magnetic fine particles include a core composed of SmCo-based nanoparticles and a hydrophilic polymer covering at least a portion of the surface of the core.
    Type: Application
    Filed: November 21, 2008
    Publication date: May 28, 2009
    Applicant: TDK Corporation
    Inventors: Nobuhiro Jingu, Mamoru Satoh, Kenichi Kitamura, Megumi Yoshimura
  • Publication number: 20090127495
    Abstract: The invention provides weather-resistant SmCo-based magnetic fine particles and a magnetic recording medium with both weather resistance and high recording density. The SmCo-based magnetic fine particles of the invention include SmCo-based nanoparticles and a hydrophobic polymer covering at least part of the surfaces of the SmCo-based nanoparticles. The magnetic recording medium of the invention also has a magnetic layer comprising at least SmCo-based magnetic fine particles and a hydrophobic binder, wherein the SmCo-based magnetic fine particles include SmCo-based nanoparticles and a hydrophobic polymer covering at least part of the SmCo-based nanoparticle surfaces.
    Type: Application
    Filed: November 18, 2008
    Publication date: May 21, 2009
    Applicant: TDK Corporation
    Inventors: Nobuhiro JINGU, Mamoru SATOH, Kenichi KITAMURA, Megumi YOSHIMURA
  • Publication number: 20030033219
    Abstract: In a method for supporting to select products suitable to the product user by using a computer, first image information of a possessed product possessed by the product user is obtained and second image information of a purchase desired product desired for purchase by a product purchaser is obtained. A result from comparing the first image information with the second image information is shown to the product purchaser.
    Type: Application
    Filed: March 20, 2002
    Publication date: February 13, 2003
    Applicant: FUJITSU LIMITED
    Inventors: Tomomi Kasahara, Megumi Yoshimura
  • Patent number: 6463172
    Abstract: When performing image synthesis, in which a plurality of images having different color tones are combined, or when converting the contrast of an image, the prior art is such that a user must convert pixel levels manually. Consequently, it is required that the user have thorough knowledge of the constitution of the image data to undergo the level conversion and of image processing techniques in general. This means that the conversion cannot be performed by anyone in simple fashion. In accordance with the present invention, a conversion table is created automatically based upon the color distribution of first image data in such a manner that the color tone of second image data is made to approach that of the first image data, and the second image data resulting from a pixel level conversion by this conversion table is combined with the first image data, whereby there is obtained a natural composite image.
    Type: Grant
    Filed: February 23, 1999
    Date of Patent: October 8, 2002
    Assignee: Canon Kabushiki Kaisha
    Inventor: Megumi Yoshimura
  • Patent number: 6383596
    Abstract: The invention provides an optical recording medium preventing deterioration of an organic dye, having improved durability and being highly reliable, as well as a process for producing the same. The recording layer (3) including an organic dye as the main component, and the reflective layer (4) comprising a metal selected from Cu, Ag and Au or an alloy containing at least one of these metals, are formed in this order on substrate (2). An ultraviolet-curable material is laminated on the reflective layer (4) and cured by irradiation with UV rays at 200 to 1000 mJ/cm2 in such a manner that a cure shrinkage factor is not more than 10% by volume to form the protective layer (5) so that the organic acid content in the resulting ultraviolet-cured resin is not more than 10 ppm by weight, whereby the optical disk (1) is obtained. The dye is preferably a cyanine type dye, and the reflective layer is preferably Cu, Ag or an alloy containing at least one of these metals.
    Type: Grant
    Filed: June 21, 2000
    Date of Patent: May 7, 2002
    Assignee: TDK Corporation
    Inventors: Hiroyuki Arioka, Megumi Yoshimura, Tsuyoshi Komaki