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It is with great sadness that we announce the passing of Professor Yoichi Sakakihara on March 29, 2025. An internationally respected pediatric neurologist, visionary educator, and cherished mentor, Professor Sakakihara left an enduring legacy in child neurology and child development science.

Academic and Professional Journey

Born in 1951, Professor Sakakihara graduated from the Faculty of Medicine, The University of Tokyo in 1976. He began his career at the University of Tokyo Hospital, with formative experiences in both clinical pediatrics and pediatric neurology. He later trained in the United States at Washington University in St. Louis before returning to Japan, where he rose through the ranks at the University of Tokyo and later Ochanomizu University, becoming Professor Emeritus in 2018.

He was also the Director of Child Research Net (CRN), Executive Advisor at Benesse Educational Research and Development Institute (BERD), and President of the Japanese Society of Child Science.

Contributions to Pediatric Neurology and Developmental Science

Professor Sakakihara specialized in pediatric and developmental neurology, with particular expertise in ADHD, Asperger's syndrome, and other neurodevelopmental disorders. His holistic and empathic approach to treatment earned him lasting appreciation from generations of families. His research and advocacy shaped Japan’s approach to inclusive education, developmental assessment, and neurodiverse care.

He served as President of the Asian and Oceanian Child Neurology Association (AOCNA), playing a key role in its institutional transformation. Under his leadership, AOCNA established its independence and adopted its first bylaws. He is often remembered as the architect of modern AOCNA.

Reflections from a Life in Service

In a personal essay titled "My Purpose in Life is to Be a Basic Doctor" published shortly before his passing, Professor Sakakihara offered deeply moving reflections on his clinical journey. Having retired from active practice in Tokyo after nearly three decades, he recalled moments with patients that brought both humility and fulfillment.

"Reading over the letters at home, I feel the warm memories coming back, knowing I was able to empathize, even a little, to the feelings of such children and their parents."

He expressed admiration for his mentor, Dr. Noboru Kobayashi, and shared a profound moment when Dr. Kobayashi asked, "Have I done anything positive for society?"—a question that left an indelible mark on Professor Sakakihara and guided his humility in practice.

Career Highlights

  • 1976: Graduated from Faculty of Medicine, University of Tokyo
  • 1976–1990: Resident, Clinical Associate, Lecturer at University of Tokyo Hospital
  • 1982–1985: Pediatric Neurology Research, Washington University, St. Louis
  • 2004–2025: Professor, Department of Child Care and Education, Ochanomizu University
  • 2015–2016: Vice President, Ochanomizu University
  • 2018–2025: Professor Emeritus, Ochanomizu University
  • Director, CRN; Executive Advisor, BERD; President, Japanese Society of Child Science

Memberships and Editorial Roles

  • Japan Pediatric Society (delegate)
  • Japanese Society of Child Neurology (director)
  • Japanese Society of Infant Study (Vice President)
  • Japanese Society of Child Study (steering committee member)
  • Editorial Board Member: Brain & Development, NO-TO-HATTATSU, Pediatrics International, Baby Science

A Legacy of Humility and Excellence

Professor Sakakihara’s enduring influence lies not only in his academic and clinical contributions but in his deeply humanistic approach to child health. He was a man of science guided by empathy, always mindful of the emotional world of the child and the hopes of the parent.

We extend our heartfelt condolences to his family and colleagues. His values, teachings, and quiet strength will continue to inspire future generations.

“A teacher affects eternity; he can never tell where his influence stops.”
— Henry Brooks Adams

Professor Yoichi Sakakihara, your purpose lives on in the countless lives you touched.