Senyo Kogyo

Senyo Kogyo is a Japanese entertainment company specializing in the production and operation of amusement park equipment. The company is known for manufacturing Ferris wheels.

Ferris wheel

 * Cosmo Clock 21: 107.5 m tall, completed 1989; world's tallest 1989 to 1997; 112.5 m tall when re-erected in 1999
 * Diamond and Flower Ferris Wheel: 117 m tall, world's second tallest when completed in 2001
 * Tempozan Ferris Wheel: 112.5 m tall, completed 1997; world's tallest 1997 to 1999