*However, there are many modification for long vowel. For example, in hydrographic charts published by Hydrographic Department, MSA, the instructed method is used basically, but "-" is used for long vowels. Sometimes, "∧" or "-" is ignored as in the case of Tokyo. Some people use quite different method describe their family names; for example as Katow or Katoh.
In our lists, the standard system will be used. However, for long vowels, we shall use the simplest method as just in the case of Tokyo; namely, we shall drop "∧" or "-".
