The Tokyo High Court proposed Friday that seven automakers pay 1.2 billion yen to hundreds of asthma patients to settle a decade-long court battle over air pollution caused by emissions from diesel-powered motor vehicles in Tokyo.

Presiding Judge Toshiaki Harada gave the plaintiffs and defendants until July 12 to decide whether to accept the court-proposed compromise plan. The amount of settlement money proposed by the high court compares with 500 million yen the automakers earlier offered to pay.

The plaintiffs agreed to a court-mediated settlement to end an 11-year legal battle against seven automakers, which include industry giants Toyota, Honda and Nissan, and government bodies.

More than 520 Tokyo residents had filed the lawsuit, blaming diesel gas fumes for causing their asthma. The plaintiffs said about 110 people who were previously part of the lawsuit have already died of their illnesses.

Asthma patients have regularly held noisy protests outside the headquarters of Nissan and other automakers they accused of dragging their feet on the row.

Under the settlement, the automakers alone will pay 3.3 billion yen (28.6 million dollars) to underwrite a five-year health plan for the asthma patients. The automakers will also pay a one-time 1.2 billion yen to the plaintiffs.