Toshikazu Sana 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).
Abstract: A manufacturing method of composite articles is provided by which it is possible to constantly mold thick composite articles as primary structure component parts for aircraft, such as rotor hubs of helicopters, which are highly accurate in dimensions and have a favorable internal quality with no internal defects such as molding cracks, voids and so forth. Therefore, this manufacturing method of composite articles includes the steps of laying up resin-impregnated reinforcing fiber materials in a molding cavity within a molding jig of a matched die type, evacuating the interior of the molding jig so that the resin-impregnated reinforcing fiber materials are under reduced pressure and thereafter closing and heating the dies of the molding cavity, causing the resin to overflow from the laid up materials into a trap located remote from the molding cavity, and molding the laid up materials inside of the molding jig.
Abstract: A laminating apparatus for multi-laminating different kinds of prepreg material sheets including roll stocker means provided with a plurality of rolls of different kinds of prepreg material tape on a common axis, lay-up table means movable with respect to said rolls in parallel with the common axis, cutting means for cutting said prepreg material tape into sheets disposed between said roll stocker means and said lay-up table means, pulling out means provided on said lay-up table means to be movable in the longitudinal direction thereof for pulling said prepreg material tape out from said rolls, and compaction head means provided on said lay-up table means for compacting said prepreg material sheet to be movable along the longitudinal direction of said lay-up table means. According to the present invention, it is possible to continuously laminate different kinds of prepreg material sheets in desired order and an automatic laminating operation can be easily accomplished.
October 23, 1986
Date of Patent:
November 24, 1987
Kawasaki Jukogyo Kabushiki Kaisha
Akira Taniguchi, Kuniji Ojio, Tatsuya Yamamoto, Toshikazu Sana