[PAR] [TLE] Dyson (company) [SEP] Dyson Ltd. is a British technology company established by James Dyson in 1987.  It designs and manufactures household appliances such as vacuum cleaners, hand dryers, bladeless fans, heaters and hair dryers.  Dyson employs more than 7,000 people worldwide. [PAR] [TLE] Bladeless fan [SEP] A bladeless fan (sometimes called an air multiplier) blows air from a ring with no external blades.  Its blades are hidden in its base.  The first concept was created by Toshiba in 1981.  Dyson claims that its bladeless fans (U.S. Patent  ) produce a more constant airflow than traditional fans.
[PAR] [TLE] Dyson ( company ) [ SEP ] Dyson Ltd. is a British technology company established by James Dyson in 1987 . It designs and manufactures household appliances such as vacuum cleaners , hand dryers , bladeless fans , heaters and hair dryers . Dyson employs more than 7,000 people worldwide . [PAR] [TLE] Bladeless fan [ SEP ] A bladeless fan ( sometimes called an air multiplier ) blows air from a ring with no external blades . Its blades are hidden in its base . The first concept was created by Toshiba in 1981 . Dyson claims that its bladeless fans ( U.S. Patent ) produce a more constant airflow than traditional fans .
Dyson is a well-known maker of ring-shaped bladeless fans, but which Japanese company invented them, in 1981?
Dyson is a well - known maker of ring - shaped bladeless fans , but which Japanese company invented them , in 1981 ?
Toshiba
Toshiba