 KYOTO, Japan, Jan. 20, 2021 GLOBE NEWSWIRE -- Nidec Corporation Nidec filed a patent infringement lawsuit against Seagate Technology LLC and its affiliates Seagate on January 18, 2021 in the United States District Court for the District of Delaware, alleging that certain of Seagate products infringe Nidec-owned US patents related to hard disk drive HDD inventions. 