After Eugene graduated from Cranbrook Academy of Art, the couple moved to Japan where Hiroko built a Jewelry design business,
Gene Limited, while Eugene studied at
Tokyo University of the Arts. In 1972, Hiroko and Eugene returned to the United States. Hiroko continued making and selling jewelry, renaming her business
Hiro Limited. They were inspired by
Mokume-gane, a Japanese traditional mixed-metal laminate process that creates a wood grain-look to the metal; they brought this technique to the United States and created a new
polymer Mokume-gane bonding process. She has authored many articles on the topic of Japanese metalsmithing. They were jointly elected Fellows of the
American Craft Council in 2000. == Personal life ==