Summary Box: Rubin, helped forge LexisNexis, dies

WHO HE WAS: Jerome Rubin helped bring to market the commercial online research database today known as LexisNexis and the display technology behind millions of Amazon Kindles and other e-readers.

CIRCUMSTANCES: He died of a stroke at a New York hospital on Monday. He was 86.

HIS BACKGROUND: Rubin was trained as a physicist and attorney, but in the 1970s was hired by an Ohio-based company to make commercially viable what was then a novel product ? a database of state case law.