Junko's grandfather and creator of the &quot;Time Bokan&quot; time machines. A famous scientist, he wasn't recovered until the 27th episode, but soon joined Tanpei's team on other journeys. His name is probably a play on the term &quot;消えた&quot;, which pronounced familiar and means &quot;disappeared&quot;.  Source: Wiki

Dr. Kieta, the inventor of a time-travel machine, is lost on a test run of his machine to the prehistoric past. When the time-space craft returns to the present, his young assistants are surprised to find only a parrot in the cockpit. In their hurry to find the missing scientist before it is too late, the youngsters set out on a time-space hunt without any clear destination.<br><br>
(Source: Official Site)

Dr. Kieda