Patents by Inventor Masakazu Wakabayashi

Masakazu Wakabayashi 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: 20200209760
    Abstract: A laser processing method of performing laser processing on a transparent material that is transparent to ultraviolet light by using a laser processing system includes: performing relative positioning of a transfer position of a transfer image and the transparent material in an optical axis direction of a pulse laser beam so that the transfer position is set at a position inside the transparent material at a predetermined depth ?Zsf from a surface of the transparent material in the optical axis direction; and irradiating the transparent material with the pulse laser beam having a pulse width of 1 ns to 100 ns inclusive and a beam diameter of 10 ?m to 150 ?m inclusive at the transfer position.
    Type: Application
    Filed: March 9, 2020
    Publication date: July 2, 2020
    Applicant: Gigaphoton Inc.
    Inventors: Koji KAKIZAKI, Masakazu KOBAYASHI, Akira SUWA, Osamu WAKABAYASHI
  • Patent number: 5151234
    Abstract: A method for the manufacture of thermoplastic resin sheets, including extruding molten thermoplastic resin at an extrusion velocity V through a slit provided in an extrusion mold so as to form thermoplastic resin sheets with embossed surfaces, wherein said thermoplastic resin is extruded from said slit in said extrusion mold under conditions such that the ratio V/H of said extrusion velocity V to the width H of said slit exceeds a critical value (V/H)c, said critical value (V/H)c being the ratio of the extrusion velocity to the width of the mold slit corresponding minimum value of the roughness of the embossment formed on the surface of said thermoplastic resin sheets, whereby defects such as the adhesion to and winding onto rollers, inferior appearance and sizing marks which are prone to occur when the sheets are embossed with embossing rollers.
    Type: Grant
    Filed: March 29, 1990
    Date of Patent: September 29, 1992
    Assignee: Sekisui Kagaku Kogyo Kabushiki Kaisha
    Inventors: Makoto Ishihara, Kazuhiro Kiminami, Masakazu Wakabayashi, Hirokazu Hori, Saneharu Tatsu, Sachio Takeshita
  • Patent number: 4720513
    Abstract: The present invention relates to an instantaneous adhesive composition which is satisfactorily made thixotropic or gelled and has a rapid setting time and an excellent adhesive strength, said composition being obtained by adding to an .alpha.-cyanoacrylate a silica gel treated with a silyl isocyanate.
    Type: Grant
    Filed: May 4, 1987
    Date of Patent: January 19, 1988
    Assignee: Matsumoto Seiyaku Kogyo Kabushiki Kaisha
    Inventors: Makoto Kameyama, Masakazu Wakabayashi, Iwakichi Sugiyama