The history of Japan Association for Clinical Laboratory Science (JCLS) — previously the Japan Society for Clinical Laboratory Automation (JSCLA) — is the history of clinical laboratory medicine in Japan based on laboratory technologies and automation.


Four years after Skeggs’s autoanalyzer was introduced to Japan, the Autoanalyzer Study Group was established when the need for clinical laboratory centralization and automation was increasingly recognized. As the field of interest expanded, the Autoanalyzer Study Group was renamed as the Clinical Chemistry Autoanalysis Study Group in 1965, and then, as the Clinical Laboratory Automation Study Group in 1969, the predecessor of the Japan Society for Clinical Laboratory Automation (JSCLA) established in 1981.


The number of abstracts submitted for the congress has increased from 16 at the first congress in 1969 to 320 in average in the last decade. Our interest expanded beyond autoanalyzers to the total automation system for the clinical laboratories. In parallel to our congress, JACLaS (the Japanese Association for Clinical Laboratory Systems) EXPO has been held with more than 100 participating companies. The total number of the visitors to JACLaS EXPO has exceeded 10,000 in the latest exhibition. JCLS, together with JACLaS, has been providing unique opportunity to get the latest knowledge of clinical laboratory medicine on the cutting edge of medical science and technology.


The aim of JCLS is to contribute to precise diagnosis, appropriate treatment, and better health care by applying the latest technologies to clinical laboratories. JCLS provides chances to share information and ideas for the progress of medical science by medical technologists, researchers, engineers, tech providers and other people who leverage clinical laboratory science. As the fact that our history had started with autoanalyzers, laboratory automation in blood chemistry and hematology divisions was our main interest during the first 50 years of JCLS history. However, new technologies have been applied to other divisions of clinical laboratory such as division of microbiology, physiology and genetic testing. We have decided to expand our field of interest under the name of JCLS in the next 50 years. The door opened to the next 50 years is the door to the world.


  • Committee on Science and Technology
  • Technical committee on Genetics and Proteomics Analysis
  • Committee on Point of Care
  • Committee on Hematological Technology
  • Committee on Clinical Microbiology and Infectious Diseases
  • Committee on Medical information
  • Committee on Physiological Tests
  • Committee on Editorial Board
  • Committee on International Activities
  • Committee on Ethics

Message from JCLS President

Takashi Wada, M.D., Ph.D.

Dear Colleagues,

 On behalf of the Executive Board and the Japan Association for Clinical Laboratory Science (JCLS), I would like to express my sincere gratitude for your continuing support and encouragement in the development of JCLS. JCLS renamed as the Japan Association for Clinical Laboratory Science (JCLS) from the Japan Society for Clinical Laboratory Automation (JSCLA) in 2020 for further development and growth of our association.

  Last October, Prof. Katsunori Yanagihara made the arrangements for the 53th Annual Meeting of the JCLS held at Pacifico-Yokohama. More than 1,500 participants gathered from all over the country and foreign countries as well both on site and on the web. The meeting was full of scientific and educational contents. We had international programs as a new trial from this meeting to open our door to every country in the world. We shall go the next stage for the next 50 years of JCLS, and the door already opened. I am sure that the participants got excited when they shared the dawn of a new era for clinical laboratory science in Japan. Furthermore, the Japanese Association of Clinical Laboratory Systems (JACLaS) EXPO 2021 was held in parallel with our meeting. JACLaS EXPO is an outstanding exhibition of clinical laboratory technologies by the leading global companies with innovative products and services. The total number of visitors for JACLaS EXPO exceeded 4,500. Thank you very much for the well-organized programs and constructive discussions from the participants, the 53th annual meeting achieved a great success together with JACLaS EXPO 2021. Through the 50 years history, our association have made great contributions to the development of technology and systems for clinical laboratory automation. Based on laboratory automation, our association, renamed as JCLS, will broaden our field to every category of medical science including blood chemistry, hematology, microbiology, genetics, pathology and physiology.

 We have opened the door for the next 50 years of our association. We will have the 54th annual meeting our association in charge of Prof. Yoh Hidaka in Kobe in 2022. Your input and encouragement for the first step to further development of JCLS would be very much appreciated.

 Lastly, I would like to express my sincere thanks for your continuing cooperation.