Takasu studied at Showa University School of Medicine in Tokyo. As a graduate student, Takasu went to Germany and Italy, where he studied plastic and cosmetic surgery.
In January 2011, Takasu was also appointed to be a visiting professor of cosmetic surgery at Showa University School of Medicine. In 1974, he established Takasu General Hospital in his hometown, and in 1976, Takasu Clinic in Nagoya. As of 2010, Takasu Clinic has its branches in Tokyo, Yokohama, and Osaka.
In 1987, Takasu performed liposuction in Japan for the first time, having learned the technique from Pierre Fournier in Paris, France.
Takasu has been President of Japan Society of Liposuction Surgery since 1987. In 1999, at the age of 54, Takasu started to feel it strange that cosmetic surgeons looked older than their patients.
He also thought it odd that surgeons actually did not know how painful each procedure was. Takasu made a resolution to experience a series of cosmetic surgeries himself and rejuvenate by 20 years.
Within a year, Takasu underwent facelift, buccal fat removal, phenol peel, upper and lower blepharoplasty, hair transplantation, liposuction, and golden thread implant.
As of 2010, at the age of 65, his rejuvenation project is still in progress. Takasu later referred to the resolution as life changing, because it brought him back to the starting point of a medical doctor, "share the pains with patients."
Takasu is also a philanthropist. Immediately after the 1995 Great Hanshin earthquake, which killed 6,434 people and injured 43,792, Takasu established Organization of Cosmetic Surgery Volunteers in cooperation with surgeons from 9 other clinics.
The organization offered plastic and reconstructive treatment to the earthquake victims for free.
The pair completed 261 holes at Kyowa Country Club, Toyota City, Aichi Prefecture, Japan.
Sub-president Japan Junior Chamber, Inc., 1983. Member American Academy Cosmetic Surgery (correspondent), American Academy Aesthetic & Restorative Surgery, Japanese Society Aesthetic Surgery, Japanese Society Plastic Surgery.
Married Shizu Hoshino, November 23, 1969. Children: Rikiya, Hisaya, Mikiya.