Domestic and full-service law firm Abe Ikubo & Katayama has transformed into a frontrunner in the field of patent prosecution since the debut of its patent division 10 years ago. Led by senior partner Eiji Katayama, the team secured two new clients this year in the pharmaceutical industry. One of the firm's clients is engaged in a complex and high-profile litigation case in the IP High Court, while another is involved in appeals to the JPO to grant patent applications that the agency had previously been reluctant to approve. Despite these difficulties, it is clear that clients, including European and other multinational companies, entrust Abe Ikubo & Katayama for their most complicated patent issues. The team derives much of its strength from patents revolving around advanced technologies, including chemistry, biotechnology, semiconductors and even computer programs.