Patents by Inventor Chikayoshi Ota

Chikayoshi Ota 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).

  • Wood treating method and apparatus
    Patent number: 5343913
    Abstract: A wood treating method and apparatus whereby a wood which is thin or bent, such as a soft wood or wood removed during growth or a wood from thinning, is strengthened, straightened and molded in any desired shape, wherein after the wood is heated and softened in a high temperature high pressure atmosphere, mechanical compressive forces are applied to the wood to minimize the voids in the wood; thus, the wood is hardened, strengthened and the bent wood is corrected, making it possible to form the wood in any desired shape without lumbering the same.
    Type: Grant
    Filed: May 21, 1993
    Date of Patent: September 6, 1994
    Assignees: Hisaka Works Limited, Mitsuhiko Tanahashi
    Inventors: Mitsuhiko Tanahashi, Masafumi Inoue, Syuzo Fukada, Chikayoshi Ota, Senji Kimoto
  • Wood treating method and apparatus
    Patent number: 5247975
    Abstract: A wood treating method and apparatus in which a wood which is thin or bent, such as a soft wood or wood removed during growth or a wood from thinning, is strengthened, straightened and molded in any desired shape, wherein after the wood is heated and softened in a high temperature high pressure atmosphere, mechanical compressive forces are applied to the wood to minimize the voids in the wood; thus, the wood is hardened, strengthened and the bent wood is corrected, making it possible to form the wood in any desired shape without lumbering the same.
    Type: Grant
    Filed: August 1, 1991
    Date of Patent: September 28, 1993
    Assignees: Hisaka Works Limited, Mitsuhiko Tanahashi
    Inventors: Mitsuhiko Tanahashi, Masafumi Inoue, Syuzo Fukada, Chikayoshi Ota, Senji Kimoto