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ELECTRIC BATTERY CO. v. SHIMADZU

No. 441.

307 U.S. 5 (1939)

ELECTRIC STORAGE BATTERY CO. v. SHIMADZU ET AL.

Supreme Court of United States.

Decided April 17, 1939.

Attorney(s) appearing for the Case

Mr. Hugh M. Morris, with whom Messrs. Augustus B. Stoughton and Alexander L. Nichols were on the brief, for petitioner.

Messrs. Edmund B. Whitcomb and George Whitefield Betts, Jr., with whom Messrs. Joseph W. Henderson and George Yamaoka were on the brief, for respondents.

MR. JUSTICE ROBERTS delivered the opinion of the Court.

The courts below have held valid and infringed certain claims of three patents1 granted to Genzo Shimadzu, a citizen and resident of Japan. The earliest is for a method of forming a finely divided and, consequently, more chemically reactive, lead powder. The second is for a method or process of manufacturing a fine powder composed of lead suboxide and metallic lead and for the product...

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