About Our Firm
About Our Firm

Kajitani Law Offices has the distinction of being one of the oldest law firms in Japan. In 2020, our firm will celebrate its 100th anniversary.

Based in Tokyo, Kajitani Law Offices is comprised of fifteen attorneys and is currently led by five partners. Former heads of the firm - Gen Kajitani (Justice of the Supreme Court of Japan 1999-2005), Go Kajitani (President of the Japan Federation of Bar Associations 2004-2006), and Masaaki Oka (President of the Daiichi Tokyo Bar Association and Vice President of the Japan Federation of Bar Associations 2015-2016)- continue to be part of our team.

We provide legal services to both listed and unlisted companies, sole proprietorships and individuals in a wide variety of industries including banking, insurance, payment processing, trading, retailing, newspaper and construction. Accordingly, our practice covers a broad range of legal areas including corporate, bankruptcy and restructuring, intellectual property, competition, labor and criminal law.

In addition to handling various aspects of corporate matters, our attorneys have extensive knowledge and broad experience in bankruptcy law. Not only have our attorneys represented businesses in bankruptcy, civil rehabilitation and corporate reorganization proceedings, but they have handled bankruptcy cases as court appointed trustees and as supervisors both in civil rehabilitation and reorganization proceedings.

At Kajitani Law Offices, we strive to build strong, long‑term relationships with our clients based on mutual trust and understanding. To do this, our attorneys are dedicated to the pursuit of professional excellence and constant improvement of our legal services.

History of Our Firm

Takeo Kajitani The origin of Kajitani Law Offices is traced back to the 'Horie Law Office,' established in 1920 by the late Senichiro Horie, Esq., (b.1876 - d.1939; 1907 graduate of the University of Michigan Law School, J.D., President of the Daiichi Tokyo Bar Association). In 1923, Horie Law Office relocated to the newly opened Marunouchi Building (the former 'Maru Biru.'), after which Horie, upon his death in 1939, willed the office to the late Takeo Kajitani (b. 1908 - d. 1971, President of the Daiichi Tokyo Bar Association 1969 and Vice President of the Japan Federation of Bar Associations 1969). When Takeo Kajitani passed away in 1971, his eldest son, Gen Kajitani (President of the Daiichi Tokyo Bar Association and Vice President of the Japan Federation of Bar Associations1993-1994, Justice of the Supreme Court of Japan 1999-2005), took over office.

When Gen Kajitani was appointed as Justice of the Supreme Court of Japan, leadership passed to his younger brother, Go Kajitani (President of the Daiichi Tokyo Bar Association 1998-1999, President of the Japan Federation of Bar Associations 2004-2006). Following Go Kajitani’s appointment as President of the Japan Legal Support Center, Masaaki Oka (President of the Daiichi Tokyo Bar Association and Vice President of the Japan Federation of Bar Associations 2015-2016) became head of the firm in April 2012. To expand office space, the firm moved to the Tokyo Sankei Building, Otemachi, in January 2014.

In January 2019, Kajitani Law Offices became a partnership and is currently operated by five partners.

Our Commitments
We are committed to providing the best legal services to our clients in the most efficient and timely manner possible.
We work as a team and draw on each other’s respective strengths and expertise, so as to ensure that our clients benefit from the wide range of experiences and skills our attorneys have developed over the years.
Working as a collaborative team, our attorneys communicate closely with our clients to analyze their legal needs and strive to provide them with the best solutions.