The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 08, 2002

Filed:

Sep. 24, 2001
Applicant:
Inventor:

Tsuyoshi Fujii, Ibaragi-ken, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21B 1/36 ;
U.S. Cl.
CPC ...
D21B 1/36 ;
Abstract

In order to inexpensive construction materials effectively utilizing timber resources and realizing any desired properties by using so-called low-quality materials including slim timbers, old timbers, wood cuttings produced by lumbering, bamboo, and so forth, wood, bamboo and other wooden source materials are split into fragments along their fibers by water vapor explosion, and such explosive-split fragments are shaped and hardened by adding an adhesive, mortar or expandable resin into a new wooden material such as multi-layered board, cement board or foamed resin board of explosive-split fragments. The explosive-split fragments are also usable in various fields other than fabrication of the new material.


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