The newly released images capture Mr Ichihashi in the elevator of his apartment block before Miss Hawker's murder and it is hoped their release will stir up more information from the public.
A warrant was issued for the man's arrest after he fled his apartment when police came to question him in relation to Miss Hawker, who was missing at the time.
Miss Hawker's father Bill Hawker flew out to Japan to identify her body when she was found and gave an impassioned appeal for information about the man who fled the scene.
Mr Hawker said: "I believe my daughter was tricked into going to this man's apartment under the pretext of giving English lessons.
"My daughter was a lovely girl, she would have helped anybody. And it was because she would help anybody she is where she is now."
It is believed that Ms Hawker went to Mr Ichihashi's apartment to teach him English on March 25th.
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