Navitas Semiconductor Files Second Patent Suit Against Renesas Over New GaN Products

Navitas Semiconductor filed a lawsuit against Renesas Electronics Corporation in the U.S. District Court for the Eastern District of Texas on November 12, 2026, charging six counts of patent infringement over Renesas' newly announced GaN products. Stock Titan reported the filing.

Navitas Targets Renesas' New GaN Products

Navitas Semiconductor is a pure-play power semiconductor company that designs and sells gallium nitride and silicon carbide power ICs and devices for AI data centers, electric vehicles, solar, industrial motor drives and grid applications, according to akta.pro company records. The company said the suit accuses Renesas' TP65H020G4PLSGBD, a 650 V, 20mOhm typical dual-side cooled PQFN 8x8 device, of four counts of patent infringement for each of U.S. Patent Nos. 9,929,079; 11,545,838; 11,770,010; and 11,862,996.

The company said the suit also accuses Renesas' enhancement mode GaN power transistor family of two counts of patent infringement for each of U.S. Patent Nos. 9,613,891 and 10,269,687. Renesas announced the 650 V SuperGaN FET on September 30, 2026 and introduced its REXGaN family of 100 V enhancement mode GaN power transistors on October 6, 2026, according to the filing.

"Navitas is an early GaN innovator, and we pioneered bringing GaN technology to scale," said Navitas Senior Vice President and CTO Siddarth Sundaresan. "Competitors flagrantly disregarding our intellectual property rights will not go unanswered."

Navitas previously filed a separate lawsuit on August 10, 2026 against Renesas alleging that major GaN product lines, including SuperGaN power semiconductors, infringe patents in its GaN portfolio. Both lawsuits remain pending.

Navitas' GaN Commercial Rollout

Navitas' 650 V GaNFast FETs in the DFN 8x8 dual-side-cooled package have progressed to commercial deployment, with samples delivered and products shipped in volume to multiple customers, the company said. Navitas holds more than 450 patents issued or pending, according to the filing.

Navitas' Earlier 2026 Moves

Navitas launched a family of 2,300 V full-bridge SiC power modules for solid-state transformers, grid storage, solar inverters and EV megawatt charging, Charged EVs reported in November 2026. The G4H08MT23GB4 family uses the SiCPAK form factor with 8mΩ on-resistance and AEC-Plus qualification.

In October 2026, Navitas unveiled a 2300V full-bridge SiC module family with an 8mΩ RDS(on) using its GeneSiC Trench-Assisted Planar architecture, Stock Titan reported. Overlord Labs appointed Navitas CEO Chris Allexandre to its board of directors in October 2026, according to PR Newswire.

Renesas Leadership Change Ahead

Renesas Electronics appointed Vivek Bhan as CTO and Head of Engineering, effective January 1, 2027, and named Gaurang Shah to lead Embedded Processing and High Performance Computing, TradingView reported.