DNA Chip Research Inc. develops DNA microarrays in Japan. The company offers research and development, contract research, and diagnostic support services. It offers Tbone EX Kit for Japanese forensic laboratories in police force and universities. The company also develops EGFR (epidermal growth factor receptor) Liquid gene analysis software, a disease diagnosis program for detecting mutations in the gene encoding EGFR using DNA extracted from plasma samples or cancer tissues and determining drug efficacy of EGFR tyrosine kinase inhibitors in patients with non-small cell lung cancer, as well as focuses on developing a gene panel for testing cancers using sequencing technology. The company was incorporated in 1999 and is based in Tokyo, Japan.