
Patent Attorney
OSAKABE MASAKO
長賀部 雅子
Main Fields of Expertise
Trademark Law, Design Law, Unfair Competition Prevention Law
Languages
Japanese, English
Graduated from Chuo University (Tokyo), Faculty of Law, Department of Political Science
After registering as a patent attorney in 2002, I worked at domestic patent firms and foreign law firms before joining Kanebo Cosmetics Inc. in 2009. Later, I was seconded to the Brand Legal Department of Kao Corporation, where I handled domestic and international trademark and design matters. From 2015, I worked as a Jr. Partner at a major patent firm, engaging in domestic and international trademark, design, and IP consulting services. In September 2020, I joined Tass Meister Patent Firm (now Tass Meister IP Law Firm) and established the trademark department.

Patent Attorney
OSAKABE MASAKO
長賀部 雅子
Main Fields of Expertise
Trademark Law, Design Law, Unfair Competition Prevention Law
Languages
Japanese, English
Graduated from Chuo University (Tokyo), Faculty of Law, Department of Political Science
After registering as a patent attorney in 2002, I worked at domestic patent firms and foreign law firms before joining Kanebo Cosmetics Inc. in 2009. Later, I was seconded to the Brand Legal Department of Kao Corporation, where I handled domestic and international trademark and design matters. From 2015, I worked as a Jr. Partner at a major patent firm, engaging in domestic and international trademark, design, and IP consulting services. In September 2020, I joined Tass Meister Patent Firm (now Tass Meister IP Law Firm) and established the trademark department.
Qualifications & Registrations
Patent Attorney, Specific Infringement Litigation Affairs Certification
Message
Utilizing my experience in corporate environments, I focus on IP strategy from the client’s perspective, quickly discerning what the clients want and providing appropriate services that meet their needs. Let me assist you in protecting and growing your brand.
Affiliated Organizations
Japan Patent Attorneys Association
Qualifications & Registrations
Patent Attorney, Specific Infringement Litigation Affairs Certification
Message
Utilizing my experience in corporate environments, I focus on IP strategy from the client’s perspective, quickly discerning what the clients want and providing appropriate services that meet their needs. Let me assist you in protecting and growing your brand.
Affiliated Organizations
Japan Patent Attorneys Association