TOKYO – DuPont-Toray has filed a lawsuit in Tokyo District Court against Ube Industries for allegedly infringing a Japanese patent related to formulation and properties of polyimide film used in chip-on-flex circuits.

In its court filing, DuPont-Toray alleges Ube has infringed patent no. 4777471 covering Kapton polyimide film.

The firm says Ube manufactured and sold polyimide film graded as UPILEX SGAV1.

ANAHEIM – DDi reported first-quarter net sales of $68.9 million, up 3.7% year-over-year and up 6.8% sequentially.

BANNOCKBURN, IL – Between 2011 and 2014, high-density interconnect board production is expected to grow 26% for companies that participated in IPC’s recent PCB Technology Trends study.

SAN JOSE -- Sanmina-SCI today fell to a fiscal second-quarter net loss of $1.4 million on a drop in multimedia demand, one year after reporting net income of $13.1 million.