For the wellbeing and future of humanity


100% Customizable Antibody Production Service

Our company makes full use of our unique cell engineering technology to provide antibody production services and to conduct research & development of new biopharmaceuticals. We have implemented a satisfaction guarantee in our custom monoclonal antibody production service. Through earnest customer service and use of advanced technology, we strive to provide researchers with the highest-quality and highest-performance products.
Our aim as a company is to give back to society through the research & development of advanced technology, enabling us to contribute to the wellbeing and future of humanity.


1 - Advanced Technology

By using cutting-edge antibody production technology, we seek to deliver the highest quality antibodies modern science has to offer. For instance, we produce antibodies using the medial iliac lymph node method *1, one of the innovative technologies for antibody production. Furthermore, by making full use of our cell engineering technology, we have developed our own original antibody production methods: the Rabbit Recombinant Monoclonal Antibody Production Method *2 and the DNA Immunization-Iliac Lymph Node Method *3. The Rabbit Recombinant Monoclonal Antibody Production Method is most effective for obtaining high-affinity antibodies, and the DNA Immunity-Iliac Lymph Node Method is best used for producing protein membrane antibodies with complex structures.

2 - Satisfaction Guarantee

We are the first company to implement a satisfaction guarantee in the custom monoclonal antibody production service industry in Japan. Based on thorough hearings, we propose the most suitable antigen selection, design and screening methods for the target application. Then, through our satisfaction guarantee, not only do we eliminate the financial risk on the customer, but we also ensure that our customers are fully satisfied with our services. From Western blotting and immunostaining to ChIP Assay, from diagnostic antibodies such as high-sensitivity ELISA and immunochromatography, to the development of therapeutic antibodies such as antibody drugs and CAR-T cell therapy, we can handle challenging methods of production for various antibodies.

*1 Our company’s Mouse Iliac Lymph Node Method is licensed by the Shigei Medical Research Institute.

*2 Single cell technology is used. Rabbit monoclonal antibodies are recombinant antibodies.

*3 Our original vector is used.


Our Philosophy

Our company operates based on the philosophy that in order to contribute to society, we must prioritize the well-being of our employees. We believe that by promoting the personal growth of our personnel, we can provide better quality services. CEC is a company that, through its cumulative innovation in technology, ceaselessly continues to improve technology.
Moreover, we strive to develop high-quality and high-performance products that are useful to society and become a reliable support for research.
Our company’s purpose is not to take the company public, nor to expand into a large corporation. We have no capital ties to any other company.

Company Name 株式会社細胞工学研究所(Cell Engineering Corporation)
Established 2010
CEO Taro Tachibana
Number of
10 (3 PhD, 4 MSc)
Capital 3,000,000JPY
Address Sansei Building, 5-12-14 Nishinakajima Yodogawa-ku, Osaka 532-0011, Japan


Custom Monoclonal Antibody Production Service (Mouse, Rat, Rabbit)
・Mouse/Rat Medial Iliac Lymph Node Method
・Mouse Spleen Method
・Mouse/Rat DNA Immunization - Medial Iliac Lymph Node Method
・Rabbit Single-Cell Method for production of recombinant monoclonal antibody
We provide these custom antibody production services through our satisfaction guarantee.
Custom Recombinant Antibody Production Service
・Cloning of antibody genes from hybridoma cells
・Recombinant Antibody Production
・Chimeric Antibody Production

<Ethical considerations in animal experiments>
We comply with the Act on Welfare and Management of Animals for animal immunization experiments in antibody production, respecting the principles of Replacement (use of alternative test methods), Reduction (minimizing the number of experimental animals), and Refinement (minimizing the pain of experimental animals). Any animal immunity experiments are preliminarily examined by the Animal Care and Use Committee. Furthermore, we confirm by self-inspection that animal experiments are being carried out in accordance with the aforementioned act.
In recognition of these efforts, we have obtained the Assessment and Accreditation Project for Laboratory Animal Care and Use of the Japan Pharmaceutical Information Center.