Mitsubishi Denki Kabushiki Kaisha

Japan Science and Technology Agency

Sintokogio, Ltd.

Nagoya University

Toshiro Ito

Hiroyasu Saka

Won-Jin Mooni

Shouji Uchimura

A ceramics sintered material cutting tool, characterizing in that it has a dislocation structure which formed on the surface thereof in a straight line from and distributed uniformity in a dislocation density of 1&#xd7;10to 9&#xd7;10cm. The cutting tool is improved in a fracture toughness value and the resistance to thermal shock and thus has a prolonged life. The above cutting tools include, in particular, a twist drill and a throw away tip.

Method for toughening surface of sintered material cutting tool and sintered material cutting tool having long life

A data collection and storage method is disclosed wherein data is stored in a sequence of files in time-serial fashion. Data is first stored in a temporary file, following which the temporary file is redesignated so as to receive the name of one of a series of permanent storage files. This arrangement allows the permanent storage files to be read out while data continues to be collected, eliminating a bottle neck which heretofore existed in the art.

Method for collecting and storing data

Growing community of inventors

Aichi, Japan

Toshiro Ito