Dear Mr. Dale,
Thank you for posting your request on History Hub!
Your description does not match any issued uniform item we are aware of, other than the fact that the inclusion of wings is reminiscent of the use of wings in the 11th Airborne Divisions’s unit insignia and the parachute badges and glider badges that would have been worn by members of an airborne unit. Searches for “University of the Japan” also come up with no results, and the nonstandard English suggests that this was not American made. This may have been purchased by your father from a Japanese dealer as a souvenir.
The National Archives does not have the authority to appraise or authenticate such items. We suggest that you contact a reputable antiques dealer in your area or search for a specialist in 20th Century Japanese antiques or World War II era memorabilia.
We hope this information is helpful. Best of luck with your research!