HOME  /  About us
About us

Preventive medicine,
since 1990.

Clinic Specializing
in Health Checkups

Chiinkai Medical Corporation is a medical institution that focuses on preventive medicine. For over 30 years since establishing Oike Clinic in Kyoto as Japan’s first shared-use diagnostic imaging center in 1990, we have contributed to the enhancement of community healthcare in Japan by specializing in comprehensive medical check-ups and diagnostic imaging to support the physical well-being of many individuals.

We provide high-quality physical examinations and pursue better medical care from the viewpoint of preventive medicine, contributing to early detection and early treatment of diseases and helping people to live brighter and more active lives.

At Oike Clinic, we offer a dedicated program for international visitors to Japan, so that you can return home with confidence and peace of mind about your health.

A couple enjoying life in good health

Our group clinics

Clinics welcoming international visitors

Message

For more than 30 years, Medical Corporation Chiinkai has helped people protect their health through advanced imaging and comprehensive health screenings.

Our facilities in Kyoto combine state-of-the-art diagnostic technology with experienced medical teams to support the early detection of cancer and other diseases. Oike Clinic, established in 1990, pioneered shared-use diagnostic imaging in Japan and introduced PET screening in 2003. Today, we work with approximately 1,800 medical institutions and provide health screenings to more than 20,000 people each year.

With over 780,000 screenings completed, we offer trusted expertise, attentive care, and a comfortable experience tailored to each individual. Our international support team provides overseas guests with seamless access to the high-quality preventive healthcare we have developed in Kyoto.

Discover potential health risks early—and gain greater peace of mind for the future.

Tanabe Takuji  President

Corporate overview

Major milestones

  • 1979 JuneOpening of Tanabe Clinic
  • 1990 Dec.Opening of Sakazaki Clinic and Kyoto Medical Club, Inc. at the same time
  • 2007 JulyOpening of Nakanoshima Clinic
  • 2011 Apr.Corporate name became Chiinkai Medical Corporation, and Sakazaki Clinic was renamed Oike Clinic
  • 2011 Oct.Opening of Shijo Karasuma Clinic
  • 2014 Apr.Tanabe Takuji appointed as President
  • 2022 Apr.Opening of Oike Clinic Ladies Plaza
  • 2023 Oct.Opening of Nishinomiya Gardens Kenshin Clinic
  • 2024Opening of Nakanoshima Clinic Ladies Plaza
Chiinkai milestones

Clients

Chiinkai provides health screening programs for the health insurance societies of leading Japanese companies.

*List of companies contracted with health insurance unions.

Accreditation

KENKO Investment for Health 2026 — Large Enterprise Category

Health and Productivity Management

Accredited organization: Chiinkai Medical Corporation

Quality Evaluation for Ningen Dock and Health Screening Institute

Quality Evaluation for Ningen Dock and Health Screening Institute

Accredited facility: Oike Clinic

Japan Society of Health Evaluation and Promotion — certified facility

Japan Society of Health Evaluation and Promotion

Accredited organization: Oike Clinic Ladies Plaza

Reservation

Your peace of mind starts here.

Slots for PET-CT, MRI and endoscopy are limited. We recommend booking about two months before your preferred date.

Book an appointment →