About Us



Bioserve, a leading biotechnology organization in India, specializes in CLINICAL DIAGNOSTICS for early CANCER DETECTION. With over 20 years of experience, we provide top-notch services nationwide. Our expertise lies in OLIGOSYNTHESIS and MOLECULAR SERVICES, making us a preferred choice in the industry.

Recently acquired by the Reprocell Group, a JASDAQ listed company headquartered in Japan, with global offices, our capabilities have expanded. We now offer a wide range of services including NUCLEIC ACID PROCESSING, SEQUENCING, GENE EXPRESSION ANALYSIS, and GENOTYPING. This partnership enhances our ability to serve customers globally.

Message from our CEO


REPROCELL is going to continue challenging the new horizon of the ES/iPS cell business as a pioneering company.

REPROCELL is a biotech company that was established in 2003 on the basis of technologies developed by Professor Nakatsuji (who had established the first human ES cells in Japan in that year) at Kyoto University and Professor Nakauchi at Tokyo University. The first human ES cells were established at Wisconsin University in 1998, and the first human iPS cells were established at Kyoto University in 2007. Human ES/iPS cell research is still in its early stages, but it is expected to lead to the next generation of life science businesses such as regenerative medicine, tailor-made medicine, and drug development support.

REPROCELL has been playing a pivotal and pioneering role in the ES/iPS cell business by starting to commercialize culture media for human ES/iPS cells in 2005, the world’s first cardiomyocytes derived from human iPS cells in 2009, and the world’s first neurons derived from human iPS cells in 2010. We will continue expanding our business in the field, including the development of culture reagents, stem cell-based drug development support technologies, and tailor-made medicine.

REPROCELL’s company policies are “customer centeredness,” “faith and trust,” and “a frontier spirit.” We believe that the company can exist only by providing value to customers and contributing to society. Toward this purpose, REPROCELL places emphasis on faithfully and bravely taking up new challenges. Through our business, we will contribute to the health and happiness of people worldwide.

Chikafumi Yokoyama

Chief Executive Officer

Our Leaders



Chikafumi Yokoyama, Ph.D.

Chief Executive Officer
Dr. Yokoyama joined REPROCELL Inc. in 2004 as a general manager of business development, a year after the formation of the company. Since 2005 he has been the Chief Executive Officer during which time he raised investment funds, arranged the initial public offering, and managed several global corporate acquisitions. Prior to REPROCELL, Dr. Yokoyama worked as an RandD Leader for Sumitomo 3M, a subsidiary of 3M Corporation. And earlier, for a period of nearly 8 years, he was employed in McKinsey and Company Inc. as a management consultant. Dr. Yokoyama received his Ph.D. in chemistry from Tokyo University in 1996.

Daisuke Usui

Chief Operating Officer, REPROCELL
CEO, Bioserve Biotechnologies India

Mr. Daisuke Usui has global experience in key business position of medical and biotech companies in mature and emerging markets. His diverse background includes various roles managing finance, sales and marketing, supply chain, and launching new products. Prior to joining REPROCELL, Daisuke was responsible for sales and commercial activities in Asia Pacific with HOYA Surgical Optics, in addition to being an executive manager for its subsidiary in India. Daisuke holds a bachelor of arts (International Studies) from Tsukuba University (Japan).