Patents by Inventor Masaru Matsuda

Masaru Matsuda 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: 6165655
    Abstract: A toner composition useful for forming a single or full colored image on a transfer sheet, containing a coloring agent, and a binder resin, wherein the coloring agent contains a plural kinds of metal elements (a) which contribute to the color of the coloring agent and at least one kind of a metal element (b) which does not contribute to the color of the coloring agent. At least one of the metal elements (a) shows substantially the same two-dimensional distribution within an area of at least 1 square .mu.m as that of the metal element (b) when analyzed by an electron prove micro analyzer. By sintering a ceramic, such as a tile, on which the image-bearing transfer sheet has been applied, a pattern corresponding to the toner image is formed on the ceramic.
    Type: Grant
    Filed: June 10, 1999
    Date of Patent: December 26, 2000
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiromitsu Kawase, Masaru Matsuda
  • Patent number: 6153343
    Abstract: A method of forming a toner image on an image transfer sheet include the steps of forming a latent electrostatic image on an image bearing member, developing the latent electrostatic image to a toner image, using a developer, and transferring the toner image to an image transfer sheet, with the developer having a carrier and a toner which contains a thermoplastic resin and a coloring agent having a chromatic color and capable of retaining the chromatic color even after the toner is sintered, and satisfying at least one of three conditions that (1) a toner concentration in the developer is in a range of 8 to 24 wt. %, (2) the toner has an absolute charge quantity value of 12 .mu.C/g or less, and (3) a ratio of a true specific gravity of the carrier to that of the toner is in a range of 2 to 3. An image can be fixed on a heat-resistant solid surface by further attaching the toner image transferred to the image transfer sheet to a heat-resistant solid surface and sintering the toner image.
    Type: Grant
    Filed: September 17, 1998
    Date of Patent: November 28, 2000
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiromitsu Kawase, Masaru Matsuda
  • Patent number: 6149566
    Abstract: A heating device for heat-sealing bottom portions of containers has a hot air nozzle 62. The nozzle 62 is positionable as opposed to a bottom forming end portion 14 of a tubular blank 11 of square cross section as fitted around an intermittently drivable mandrel 52 for heating a region of the blank end portion. The nozzle 62 is movable toward or away from the end portion 14 on the axis of the blank 11. The nozzle 62 has orifices 101, 102, 131, 132, 133 directed toward a plurality of parts within the region when the nozzle is positioned close to the end portion. Among the orifices 101, 102, 131, 132, 133 of the nozzle 62, those 101, 131 directed toward the part of the region remote from an extremity of the blank when the nozzle is so positioned have a greater open area ratio than those 102, 133 directed toward the part of the region proximate to the blank extremity when the nozzle is so positioned.
    Type: Grant
    Filed: February 24, 1999
    Date of Patent: November 21, 2000
    Assignee: Shikoku Kakoki Co., LTD
    Inventors: Yoji Nishio, Masaru Matsuda, Michio Ueda
  • Patent number: 6126387
    Abstract: A pump housing PH surrounding an impeller 21 comprises an inlet port 19 and an outlet port 20 disposed in a spaced-apart relationship from each other in a direction of rotation of the impeller 21, a pump passage 23 corresponding to vane grooves 22 of the impeller 21 and extending from the inlet port 19 to the outlet port 20 along the direction of the impeller rotation, and a partition 25 for partitioning between the outlet port 20 and the inlet port 19 along the direction of the impeller rotation. A passage-communicating portion 29 for communication between the inlet port 19 and the pump passage 23 is offset from the partition 25 in the direction of the impeller rotation, and a passage-enlarged portion 30 is provided between the partition 25 and the passage-communicating portion 29.
    Type: Grant
    Filed: May 5, 1999
    Date of Patent: October 3, 2000
    Assignee: Aisan Kogyo Kabushiki Kaisha
    Inventors: Shigeru Yoshida, Yoshihiro Takami, Masaru Matsuda
  • Patent number: 5976736
    Abstract: A toner composition useful for forming a single or full colored image on a transfer sheet, containing a finely divided coloring agent, and a binder resin, wherein the coloring agent includes a compound oxide pigment and a flux. By sintering a ceramic, such as a tile, on which the image-bearing transfer sheet has been applied, a pattern corresponding to the toner image is formed on the ceramic.
    Type: Grant
    Filed: December 5, 1997
    Date of Patent: November 2, 1999
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiromitsu Kawase, Masaru Matsuda
  • Patent number: 5179502
    Abstract: A pocket-size electronic device adapted for use as an electronic organizer which includes a casing having a coordinate input section of a tablet type, a telescopic touch pen for writing in the coordinate input section, a cover hinged to the casing by means of an upper hinge and a lower hinge disposed at a distance from each other so as to cover the coordinate input section, a touch pen holder disposed between the upper hinge and the lower hinge, the touch pen holder having a first holder member and a second holder member, an end of the touch pen being retained by the first holder and the other end being retained by the second holder.
    Type: Grant
    Filed: July 18, 1991
    Date of Patent: January 12, 1993
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Masaru Matsuda