Who invented the backup sensor?

Many of the newer cars have a back-up Sensor that warns the driver before the rear bumper actually comes in contact with something. But who invented this sensor?

I’ll bet you think it was Ford, maybe GM; how about Chrysler? No? Then how about Mercedes Benz, or possibly the French or Italian car manufacturers? No.

It was a Japanese farmer named Kawasaki. His invention was simple and effective. It emits a high-pitch squeal just before the vehicle itself backs into something.

BackupSensor.jpeg Many of the newer cars have a back-up Sensor that warns the driver before the rear bumper actually comes in contact with something. But who invented this sensor? I’ll bet you think it was Ford, maybe GM; how about Chrysler? No? Then how about Mercedes Benz, or possibly the French or Italian car manufacturers? No. It was a Japanese farmer named Kawasaki. His invention was simple and effective. It emits a high-pitch squeal just before the vehicle itself backs into something.