Defendant
1 case as defendant.
Matsushita Electric Industrial Co., Ltd. is the former legal name of the Japanese electronics group now known as Panasonic. Founded in 1918 by Konosuke Matsushita and headquartered in Kadoma, Osaka, the company was incorporated under the Matsushita Electric Industrial name in 1935 and renamed Panasonic Corporation on October 1, 2008, unifying its global brands (Panasonic, National, Technics). In April 2022 it reorganized into a holding-company structure as Panasonic Holdings Corporation (Tokyo Stock Exchange: 6752), a publicly listed company. Per its fiscal 2025 results, it reported consolidated net sales of roughly ¥8.46 trillion and about 207,500 employees.
Operations. The group is a diversified manufacturer of consumer and industrial electronics. Its businesses span home appliances and consumer electronics (Panasonic-brand TVs, audio, cameras, white goods), automotive systems and components, energy/batteries (including EV cells), industrial components and devices (motors, factory-automation equipment, electronic components), and connected solutions. It has historically been, and remains, an operating company with real products and services — not a shell licensor or patent-assertion entity.
Litigation posture. The tracked database shows a single appearance, as a defendant (0 as plaintiff), in the U.S. District Court for the Eastern District of Texas: MediaTek, Inc. v. Matsushita Electric Industrial Co., Ltd. et al. (filed 2005-10-17). This fits the profile of an operating company defending a patent suit rather than an NPE asserting an acquired portfolio. External context indicates the E.D. Texas action was part of a broader, multi-front dispute between MediaTek (Taiwan) and Matsushita/Panasonic over DVD recorder, digital TV and chipset patents; related suits were filed in the Northern District of California, with the parties reportedly settling and dismissing the cases in 2007. MediaTek's asserted patents included ones it acquired by assignment (e.g., from United Module Corp.).
Note: the case list is limited to tracked records; related Matsushita-filed actions cited in secondary sources are not reflected in the counts above.
Sources: Panasonic Holdings corporate history; Panasonic FY2025 consolidated results; U.S. District Court (E.D. Tex.) filings via govinfo/RPX.
MediaTek sued Matsushita Electric Industrial Co., Ltd. and Panasonic North America in the E.D. Texas over DVD recorders and digital TVs, asserting U.S. Patent Nos. 5,802,068 and 6,118,486. Docket metadata shows the case closed on 2007-06-14; it was resolved without judgment on the '486 patent.