Patents by Inventor Hironao Nagasima

Hironao Nagasima 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: 6010793
    Abstract: A wood board 1, wherein irregularities 6 of the surface of an oriented strand board 2 in a laminated wood board 5, in which an oriented strand board 2 is laminated on a strand board 3, are filled with a putty 7, and smoothed. A surface-decorated wood board 10, in which a surface-decorative material 12 is applied to a smoothed surface of this wood board 1. Despite the fact that an oriented strand board 2 having large surface irregularities is employed as the surface layer, it is possible to obtain a wood board 1 which has a smooth surface, in which the wooden strand pattern is reduced, and which has superior water and moisture resistance.
    Type: Grant
    Filed: September 3, 1996
    Date of Patent: January 4, 2000
    Assignee: Yamaha Corporation
    Inventors: Katsuji Yoshimura, Hironao Nagasima
  • Patent number: 5058777
    Abstract: In production of a decorative board with overlaid wood pieces used for surface covering of various furniture, building materials and car interior decoration, wood pieces supplied from an overhead hopper by gravity are dispersed on a flat feeder by application of vibration and are transferred in a dispersed state onto base boards successively supplied by a transfer conveyor in a horizontal direction. Almost no need for manual operation raises production efficiency and dispersion by mechanical vibration assures high degree of uniformity of patterns on the products. Fully automatic processing enables reproduction of patterns with commerically acceptable fidelity.
    Type: Grant
    Filed: May 25, 1989
    Date of Patent: October 22, 1991
    Assignee: Yamaha Corporation
    Inventors: Kaneo Omoto, Hironao Nagasima, Tomohide Ogata, Ritsuo Iwata