Masataka Yoshida purchased a duralumin bat case before he returned to the active roster this month. It was a special order case that cost over 200,000 yen. He decided to buy the case after he learned that white ash bats were sensitive to moisture (he switched to white ash from maple).
Yoshida is planning to head into the 2017 season with three kinds of bats: aodamo, white ash, and maple. All three kinds will be between 900 to 910 grams and 85.5 centimeters long. He will swap bats based on how he is feeling at the time.
Source: Nikkan Sports 2/1/2017