Department of Reproductive Medicine (ART Center)

What we do

At our Fertility Center, we are dedicated to helping couples fulfill their dreams of building a family. In addition to high-quality Assisted Reproductive Technology (ART), we provide comprehensive diagnostic care, holistic mental support, adolescent/menstrual care clinics, and specialized Male Infertility Services.

We also actively offer Fertility Preservation for young cancer patients (Oncofertility) and collaborate with local governments to promote preconception health awareness among younger generations.

Key Areas of Care & Educational Resources

1. What is Infertility?
If a couple of childbearing age actively trying to conceive without contraception does not achieve pregnancy within one year, it is defined as infertility. Understanding your fertility timeline early can open up clearer paths to parenthood.

2. Cancer & Reproductive Medicine (Oncofertility)
Receiving a cancer or autoimmune disease diagnosis can be overwhelming, leaving little room to contemplate future family planning. However, because certain life-saving treatments (such as chemotherapy or radiation) can impact future fertility, fertility preservation should be evaluated prior to initiating cancer treatment.

3. Understanding Eggs, Sperm & Fertilization
Fertilization occurs when an egg and a sperm meet. In IVF, sperm insertion is achieved through either conventional insemination or Intracytoplasmic Sperm Injection (ICSI). The biological sex of the embryo is determined at the precise moment of fertilization depending on the sperm.

Dedicated Male Infertility Outpatient Services: Male factors contribute to approximately half of all infertility cases. We offer comprehensive diagnostic workups and advanced surgical interventions for male factor infertility.

Diagnostic Evaluations & Treatments Offered

Diagnostic Tests

- Hysterosalpingography (HSG): Radiographic evaluation of uterine cavity and fallopian tube patency

- Hysteroscopic Chromopertubation: Endoscopic evaluation of uterine cavity and tube patency

- Diagnostic Hysteroscopy: Visual inspection of the uterine interior

- Pelvic Ultrasonography: High-resolution ultrasound scanning

- Semen Analysis: Comprehensive evaluation of sperm count, motility, and morphology

Surgical & Advanced Treatments

- Intrauterine Insemination (IUI): Artificial insemination procedure

- Falloposcopic Tuboplasty (FT): Minimally invasive tubal recanalization for blocked fallopian tubes

- Testicular Sperm Extraction (TESE): Surgical sperm retrieval for severe male factor infertility/azoospermia

- Microscopic Varicocelectomy: Microsurgical repair for testicular varicoceles

- Dilation and Curettage / Miscarriage Surgery: Gentle surgical management of pregnancy loss

Conditions we handle

Female Infertility: Ovulatory disorders, tubal factor, uterine factor, endometriosis, unexplained infertility

Male Infertility: Azoospermia, oligospermia, asthenozoospermia, varicocele

Oncofertility: Fertility preservation prior to gonadotoxic medical therapies

Number of cases

Total Outpatient Visits: 6,032 patients
Total Inpatient Admissions: 249 patient days (or admissions)

(FY2024 Results)

List of Doctors

Chief of Assisted Reproduction Technologies Department

Masaru HAYASHI

Subspeciality
Gynecological laparoscopic surgery
Gynecological malignancy
Reproductive endocrine

Department name	Department of Reproductive Medicine (ART Center)
Medical School	Dokkyo Medical University School of Medicine
Special Qualifications	Board Certified Specialist of Japan Society of Obstetrics and Gynecology Board Certified Specialist of Japan Society for Reproductive Medicine Board Certified Specialist of Japan Society of Gynecologic Oncology Board Certified Physician of Japanese Board of Cancer Therapy Board Certified Specialist of The Japan Society for Menopause and Women’s Health Board Certified Physician of Japan Society of Gynecologic and Obstetric Endoscopy and Minimally Invasive Therapy
Education & Career	1987 Mar. Graduated from Dokkyo Medical University School of Medicine 1987 May. Obstetrics and Gynecology， Hokkaido University Hospital 1994 Oct. Assistant Professor of Education Second Biochemistry Course，Hokkaido University School of Medicine 1996 May. Obstetrics and Gynecology， Stanford University School of Medicine 1999 Apr. Obstetrics and Gynecology， Hokkaido University Hospital 1999 Jul. Obstetrics and Gynecology， Hokkaido Cancer Society Medical examination Sapporo Center 2000 Jul. Obstetrics and Gynecology， National Hospital Organization Hokkaido Cancer Center 2003 Sep. Director of Obstetrics and Gynecology， Obihiro Kosei General Hospital 2006 Oct. Lecturer on campus of Obstetrics and Gynecology， Dokkyo Medical University School of Medicine 2009 Nov. Associate Professor on campus of Obstetrics and Gynecology， Dokkyo Medical University School of Medicine 2013 Apr. Assistant Chief of Obstetrics and Gynecology， Teine Keijinkai Hospital 2015 Apr. Professor of Obstetrics and Gynecology，Teikyo University Chiba Medical Center 2017 Jul. Chief of Assisted Reproduction Technologies Department， Kameda Medical Center

Chief, Department of Urology (in charge of male infertility); Deputy Chief, Medical Safety Management Office

Akira KOMIYA

Subspeciality
Urology, andrology, reproductive medicine, endocrinology

Department name	Department of Reproductive Medicine (ART Center)
Medical School	Chiba University
Special Qualifications	JUA Board Certified Urologist / Instructor Board Certified Member of the Japanese Society for Sexual Medicine Board Certified Specialist / Instructor of Japan Society for Reproductive Medicine Certified Urologist in the Endoscopic Surgical Skill Qualification System of the Japanese Urological Association and the Japanese Society of Endourology Certified Proctor for urological robot-assisted surgery of the Japanese Urological Association and the Japanese Society of Eudourology and Robotics General Clinical Oncologist certified by the Japanese Board of Cancer Therapy Board Certified Endocrinologist and Certified Endocrine Educator by the Japan Endocrine Society (Urology) Certified Testosterone Replacement Physician of the Japan Society for Men's Health Board Certified Physician in Endoscopic Surgery of the Japanese Society for Endoscopic Surgery (urologic laparoscopy) Completed the palliative care praining program Completed the clinical training instructor workshop Completed the seminar for administrators and practitioners of the Japan Council for Medical Safety M.D., Ph.D.
Education & Career	Mar 1992: Graduated from School of Medicine, Chiba University Jun 1992: Staff Physician (Resident), Department of Urology, Chiba University Hospital Apr 1993: Resident, Department of Urology, Chiba Rosai Hospital Apr 1994: Graduate School of Medicine, Chiba University Apr 1998: Staff Physician, Department of Urology, Chiba University Hospital Oct 1998: Assictant, Department of Urology, Chiba University Hospital Oct 2000: Research Fellow, Department of Urology, Johns Hopkins University School of Medicine Apr 2003: Assistant, Department of Urology, Chiba University Hospital Apr 2006: Lecturer, Department of Urology, Chiba University Hospital Mar 2007: Assistant Chief, Department of Urology, Chiba Cancer Center Dec 2007: Assitant Professor, Department of Urology, Graduate School of Medicine and Pharmaceutical Sciences,Toyama University Apr 2016: Assistant Professor (Department of Urology), Chiba University Hospital Oct 2016: Assistant Professor (Department of Urology), Chiba University Graduate Shool of Medicine Oct 2021: Clinical Professor (Department of Urology), Chiba University Hospital Apr 2022: Joined Kameda Medical Center as Chief, Department of Urology (in charge of male infertility) Jul 20022: Chief, Department of Urology (in charge of male infertility); Deputy Chief, Medical Safety Management Office

Chief of ART Department

Kiyotaka KAWAI

Subspeciality
Obstertrics and Gynecology， Assisted Reproduction Technologies， Male sterility

Department name	Department of Reproductive Medicine (ART Center)
Medical School	Asahikawa Medical University School of Medicine
Special Qualifications	Board Certified Specialist of Japan Society of Obstetrics and Gynecology
Education & Career	2006 Mar. Graduated from Asahikawa Asahikawa Medical University School of Medicine 2006 Apr. Resident of Kasukabe Shuuwa General Hospital 2008 Apr. Senior Resident of Medical Hospital of Tokyo Medical and Dental University 2008 Oct. Tsuchiura Kyodo General Hospital 2010 Apr. Obstetrics and Gynecology， Kameda Medical Center 2011 Apr. Assisted Reproduction Technologies Department， Kameda Medical Center 2011 Sep. Kiba Park Clinic 2012 Jan. Epigenetics field. Medical Research Institute Tokyo Medical and Dental University 2013 Apr. Denentoshi Lady Clinic， Reproduction Clinic Osaka 2014 Feb. Vice Chief of Assisted Reproduction Technologies Department & Chief of ART Center， Kameda Medical Center 2014 Dec. Chief of Assisted Reproduction Technologies Department & Chief of ART Center， Kameda Medical Center 2016 Apr. Chief of Assisted Reproduction Technologies Department， Reproductive Technique Manager， Kameda Medical Center

Andrology