Sony Corporation

Arisawa Mfg. Co., Ltd.

Tsutomu Nakazawa

Akio Ohkoshi

Takuji Inoue

Eihachi Ogino

A method of producing a resin mold that includes the steps of pouring a first resin into a metal mold, curing the first resin at a first temperature thereby making an intermediate resin mold made of the first resin, separating the intermediate resin mold from the metal mold, pouring a second resin into the intermediate resin mold, curing the second resin at a second temperature thereby making a final resin mold made of the second resin and separating the final resin mold from the intermediate resin mold, wherein by selecting the first and second curing temperatures of the first and second resins, the final resin mold will have the same size as that of the metal mold.

Growing community of inventors

Joetsu, Japan

Tsutomu Nakazawa