[Accessible Japan]

OK, I found these:

• Shizutetsu Hotel Prezio Shizuoka-Ekinan
  http://www.hotel-prezio.co.jp/ekinan/room/#u
• Sanco Inn Shizuoka Kitaguchi
  https://www.sanco-inn.co.jp/shizuoka/room.html#room_universal
• Shizutetsu Hotel Prezio Shizuoka-Ekikita
  http://www.hotel-prezio.co.jp/ekikita/room_other.html
• Apparently Nippondaira Hotel also has one but found no evidence on their website.

Sorry the links are in Japanese but there is a horrible trend of only listing the accessible rooms on the Japanese version of the site!