Well that depends. I would assume that you have not taken an IATA DG class and are certified to ship if you are asking this question. We will need to know the class of your goods, mode of transport, where you are located, etc. to even begin to give an educated answer.
It depends on the weight
its dangerous in Japan
Depending on how much is paid for shipping charges will depend on the fastest time to ship an item from Japan to Canada. For example, shipping cost can start from $400 and up if you are shipping a car. It can take a week or more for shipping times approximately.
As Japan is a chain of islands, most of the commerce is done by shipping.
2 weeks
typhoon
Tokyo,Japan.
120 mph
Ebay, 200dollas + shipping straight from Japan
Mitsubishi was firat founded in Japan as a shipping firm 1870.
The post office can determine shipping rates for a person wanting to send household goods to another person in Japan. A flat shipping rate may be a good option.
the maximum speed for a train is the maglev in japan 581 km/h