In 1997, Sharp Corporation introduced two calculators with silver and zinc lined keys and casing, designed to reduce the amount of bacteria spread through use. Marketed soley in Japan, Sharp's designs were motivated by a growing public concern regarding the spread of bacteria through the workplace and through the use of public terminals/peripheral devices.

Another Japanese firm, Shin-Etsu Polymer, designed an anti-bacterial food wrap which inhibits the growth of bacteria that becomes attached to the wrap. The polyvinal chloride wrap is mixed with a non-organic silver-based anti-bacterial agent.


Hai Denshi Kogyo and Venture Ishikawa developed an anti-bacterial sand by infusing microscopic particles of silver directly into natural sand. The two companies, using a propietary method, claim that the sand retains its properties twice as long as conventional anti-bacterial sands.

The Japan Ceramic Tile Manufacturers is marketing a silver based floor coating targeted at bacterial buildup around chewing gum which has been discarded on heavy traffic public floors.

The Fuji Chemical Industry has created a product that will reportedly improve the preservation of eggs ( freshness ) by 30 to 40 percent. Fuji-Albac, a murky liquid, is composed of kelp and brown algae with a silver based inorganic agent and magnesium peroxide.

It is interesting to note that these companies are currently NOT considering the United States as a good market for these silver-based products.

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