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Leading Specialists in Japan
Reproductive specialists in Japan
Dr. Miyako Funabiki
Reproductive Medicine Specialist & Instructor
Dr. Miyako Funabiki uniquely holds both a psychology degree from Kobe University and a medical degree from Hyogo College of Medicine. She treats infertility across Oak Clinic's Osaka and Tokyo branches, integrating counseling, BMI-focused weight-loss programs and immature-oocyte research training from Edinburgh.
Japan 
Dr. Terumi Hayashi
Reproductive Medicine Specialist & Instructor
Dr. Terumi Hayashi is a reproductive medicine specialist trained in advanced laparoscopic surgery and the medical director of Oak Clinic Sumiyoshi since September 2024. She combines surgical expertise with IVF practice, including research on recurrent implantation failure.
Japan 
Hiroko Harada
Reproductive Medicine Specialist
Dr. Hiroko Harada is a reproductive medicine physician at Sugiyama Ob-Gyn Clinic Shinjuku with 17 years as a physician and 10 in fertility care. Trained at Nippon Medical School, St. Luke's International Hospital and Shinjuku ART Clinic, she specializes in ovulation induction, low AMH, recurrent implantation failure, chronic endometritis and PGT-A.
Japan 
Hiroshi Fujita
MD (Doctor of Medicine)
Clinical Director at Kato Ladies Clinic, appointed 2025, with prior practice at Tokyo San-o Hospital; certified in OB/GYN and reproductive medicine.
Japan 
Hiroyasu Juen
Board Certified Obstetrician and Gynecologist
Dr. Hiroyasu Juen is a reproductive medicine physician at Sugiyama Ob-Gyn Clinic Shinjuku with 42 years of clinical experience, 16 of them in fertility care. One of the clinic's most senior doctors, he handles ovulation induction, egg retrieval and embryo transfer procedures, hysteroscopy and low AMH cases, and is known for patient, deeply listen-first consultations.
Japan 
Hiroyuki Yamasaki
MD (Doctor of Medicine)
Vice Director of Kato Ladies Clinic with nearly 40 years of OB/GYN experience, dual-certified in reproductive medicine, and former Kanazawa IVF clinic director.
Japan 
Hisao Osada
MD (Doctor of Medicine)
Advisor at Kato Ladies Clinic and director of Natural ART Clinic Nihonbashi; a former Nihon University professor with over 55 years in obstetrics and ART.
Japan 
Hisayo Kataoka
Reproductive Medicine Specialist and Certified Trainer
Dr. Hisayo Kataoka is a reproductive medicine physician at Sugiyama Ob-Gyn Clinic Shinjuku with 30 years of experience in fertility care. She earned her PhD researching human egg activation and specializes in ovulation induction, IVF, recurrent implantation failure, PGT-A and treatment of low AMH patients.
Japan 
Hong Jin
MD (Doctor of Medicine)
Chinese-speaking fertility physician at Kato Ladies Clinic, trained at Juntendo University with a career spanning China and Japan; certified in OB/GYN.
Japan 
Dr. Emi Ishida
Board-Certified Obstetrician and Gynecologist (Instructor)
Dr. Emi Ishida is an OB/GYN specialist and instructor trained at Nagasaki University and Osaka University's medical graduate school, where her research focused on ovarian and reproductive biology. She provides individualized IVF and infertility care at Oak Clinic Sumiyoshi.
Japan 
Junichiro Fukuda
MD, PhD
Clinical Director at Kato Ladies Clinic since 2017 with a PhD in biochemistry; certified in OB/GYN and reproductive medicine and a society council member.
Japan 
Junpei Toratani
MD (Doctor of Medicine)
Obstetrician and gynecologist at Kato Ladies Clinic since 2025, with a decade of hospital practice across Tohoku regional and university centers.
Japan Showing 25-35 of 85
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