KIMURA CHUZOSHO CO., LTD.

Patent application number	Title	Published
KIMURA CHUZOSHO CO., LTD. Patent applications
20090165982	Method for Predicting and Preventing Shrinkage Cavity of Iron Casting - A method for predicting and preventing occurrence of shrinkage cavity in an iron casting of any of various shapes or in each part of an iron casting precisely prior to casting. The shape of an iron casting is approximated entirely or partially to a rectangular parallelepiped or a cube, to the sum of the two long sides is divided by the short side to determine a shape coefficient, and occurrence of shrinkage cavity is predicted by determining whether the value exceeds a predetermined value (determination coefficient) or not.	07-02-2009
20090056404	TRANSFORMABLE METAL SURFACE HARDENING METHOD - A method of metal surface hardening treatment inducing transformation, in which transformation is induced in a surface interior of material as hardening treatment object by simple, rapid treatment utilizing a frictional heat under pressure without the occurrence of melt loss, quench crack, soft spot, deformation, etc. to thereby reform the structure of surface interior of material as hardening treatment object into a miniaturized martensitic structure. The method of surface hardening treatment comprised the steps of while rotating nearly cylindrical pressurization tool (	03-05-2009