| 1939 |
The Special Electrical Equipment Research Laboratory was opened. |
| 1943 |
The first circular laminated core in Japan was developed and used for the core of slidable voltage regulators. |
| 1945 |
The company moved to its present location(Ymashina-ku,Kyoto)without interrupting operations because of war damage. |
| 1948 |
Multiple-wound voltage regulators using circular laminated cores were developed, and laid groundwork for becoming a manufacturers pecializing in slidable voltage regulators. |
| 1951 |
The name of the company was changed to the Special Electrical Equipment Manufacturing Co.,Ltd. |
| 1952 |
Slidable voltage regulators were issued formal approval numbers. |
| 1955 |
Ductile wound laminated cores and the No-Cut winder used to wind the cores were developed.Pole transformer production was overhauled to expand production. |
| 1960 |
U-shaped core transformers and saturable reactors using split ductile wound cores were developed and industrialized. |
| 1961 |
The name was changed to the Special Electrical EquipmentCo.,Ltd. |
| 1964 |
One and three-Phase butt reactors,tranSformers,Saturable reactors and other inductive heaters were developed and industrialized.The world's first inductionheating roll for synthetic fiber heat stretching machines was developed and industriallzed. |
| 1970 |
Frequency tripler power supplies(1,500kW Tripler)for inductive blast furnaces were perfected.
Induction heating roll technology was exported to Dienes Co.,Ltd. in former West Germany. |
| 1980 |
The name of the company was changed to TokudenCo.,Ltd.
Jacket rolls feasible for 3-Phase power supplies were developed and industrialized. |
| 1984 |
Rolls for embossed calendering of 4 m wide non-woven webs were industrialized, and became widely used in the non-woven cloth market.
High-temPerature(400℃)jacket rolls were developed and industrialized. |
| 1985 |
The wholly owned subsidiary,Tokuden Inc., was established in the United States.
Heat-reaction pots and univestors that combine induction heating and jacket homothermic technologies were developed and delivered. |
| 1988 |
The Makino Plant was opened.
High-temperature(600℃)inductive heating rolls for steel making were developed and industrialized. |
| 1991 |
The wholly owned subsidiary,Tokuden Europe B.V., was opened in the Netherlands. |
| 1993 |
The Makino Plant was expanded to meet the growing demand for our rolls.
High-speed soft calender rolls were delivered to major paper manufacturers. The effect of high-speed paper calendering was demonstrated. |
| 1995 |
Large induction heated spin beams were perfected. |
| 1996 |
The Makino Plant was expanded again to strengthen the production system. |
| 1997 |
Singapore office was opened. |
| 1998 |
Acquired ISO9001.
New Pilot Machine was equipped at Makino Plant. |
| 2000 |
Large papermaking rolls were delivered to paper manufacturers in sweden. |
| 2002 |
Taiwan office
was opened. |
