Company Filing History:
Years Active: 1980-1982
Title: Tetsuo Okuni: Innovator in Water Turbine Technology
Introduction
Tetsuo Okuni is a notable inventor based in Hitachi, Japan. He has made significant contributions to the field of water turbine technology, holding three patents that showcase his innovative methods in manufacturing structural components for turbines.
Latest Patents
One of Okuni's latest patents is a method of fabricating a structural member by electro slag forming. This method involves mounting a water-cooled metal mold on a previously formed structural member, such as a stem, and melting electrodes to create the vane portion of a wicket gate for water turbines. The process ensures that the previously formed structural member has a concave portion exposed in the mold, allowing for a gradual melting and formation of the new component.
Another significant patent is the method of manufacturing a stay ring for water turbines and pump turbines. This method includes forming openings in upper and lower annular discs where stay vanes will be positioned. By aligning these openings and using molds that conform to the shape of the stay vanes, electroslag welding is performed to fill the molds with welding metal, thus forming the stay vanes and connecting the discs.
Career Highlights
Tetsuo Okuni has dedicated his career to advancing water turbine technology through innovative manufacturing techniques. His work at Hitachi, Ltd. has positioned him as a key figure in the development of efficient and effective turbine components. His