Corporate Profile
- Trade name
- Cytona Corp.
- Established
- October 1,2021
- Capital
- JPY3,000,000
- Representative Director
- Takashi Ohnaga
- Location
- 2-5-14 Bunkyomachi, Toyama City, Toyama Prefecture
- Cotact address
- Phone: +81-80-6351-1991
Inquiries - Business Contents
-
- Research, development, manufacturing, and sales of CTC (Circulating Tumor Cell) capture devices
- Sales of CTC capture kits and automated systems
- Consulting services for CTC research
(As of April 1,2025)

Takashi Ohnaga、Ph.D. in Engineering Founder and CEO
After conducting researches on CTC capture and analysis for more than 15 years based on Grants-in-Aid for Scientific Research (MEXT) and other resources, Dr. Ohnaga has developed and commercialized a CTC capture device called a "Polymer CTC Chip," as well as a "CTC Capture Kit" and an "Automated CTC Capture Device" that use the chip through clinical research in collaboration with university hospitals in Japan.
Co-researchers (Affiliation at the time of study)
- Dr. Fumihiro Tanaka and Dr. Kazue Yoneda, Second Department of Surgery, University of Occupational and Environmental Health
- Dr. Yutaka Shimada, Dr. Takuya Nagata and Dr. Kazuhiro Tsukada, Department of Surgery and Science, University of Toyama
- Dr. Motoyuki Otsuka and Dr. Takahiro Kishikawa, Department of Gastroenterology, University of Tokyo
- Dr. Kazuhiro Sakamoto, Department of Coloproctological Surgery, Juntendo University
- Dr. Yukihiro Kondo, Department of Urology, Nippon Medical School
- Dr. Takaaki Arigami, Department of Digestive Surgery, Kagoshima University
- Dr. Atsushi Kase, Faculty of Engineering, University of Toyama