When did Ikio Sawamura die?

There is no publicly available information about a person named "Ikio Sawamura" dying.

It's possible that:

* The name is incorrect: Double check the spelling and ensure you have the correct information.

* The person is not publicly known: They may be a private individual with no public records.

Please provide more context or details about Ikio Sawamura so I can assist you further.