Inoue Heat Treatment Industry Co., Ltd.

Yamamura plant established. All-case carburizing line and high-frequency hardening equipment introduced.

Press temper plant established.

Yamamura plant expanded. Additional gas carburizing furnaces installed.

Unmanned system introduced for gas carburizing line.

Strengthened introduction of automation and unmanned equipment.

150 kW high-frequency hardening equipment introduced.

Headquarters plant completed. Production commenced.

Hard-type vacuum furnace introduced.

Six 1-ton unmanned gas carburizing line furnaces introduced.

Shot blasting plant established. High-frequency hardening plant established.

1-ton vacuum carburizing furnace introduced.

ISO 9001 certification obtained (headquarters plant and Yamamura plant).

Research building established.

Conducted research and development, including conference presentations.

Introduced three 1-ton fully automated carburizing lines.

Obtained ISO 14001 certification (headquarters factory).

New experimental building established.

Implemented equipment monitoring system.

Kentarō Inoue appointed as president.

Second headquarters factory newly established and commenced operation. (1250-8 Izumisawa-cho, Maebashi-shi, Gunma-ken)

Introduced three 1-ton gas carburizing lines.

Implemented production management system.

Chairman of the Board, Yoshihiro Inoue, obtained a Ph.D. in Engineering from Gunma University Graduate School.

Introduced a 1-ton Gross large vacuum furnace (HV-4).

Introduced a gas carburizing furnace for spherical carbide carburizing treatment.

Introduced a vertical vacuum furnace.

Can process up to 2 meters in length (HV-5).

Introduced QuickMaster nitriding furnace.

Implemented an automatic warehouse on the gas carburizing line.