More than 85 percent of the company's products have been brought to market in the last two years.
In 1981, Japan spent more than 5 percent of its gross national product on oil.
But even that figure would be less than 1 percent of gross national product for the first time in two decades.
The total cost was around $1 billion, or 0.2 percent of gross domestic product.
In 2003 some 4.5 percent of gross domestic product was spent on education.
"I'm sure that 80 percent of their products don't sell because they have no reason to exist," he said.
In that year, they were almost 5 percent of gross domestic product.
In 1980, oil sales were about 8.5 to 9 percent of gross domestic product.
The information industry even now accounts for more than 10 percent of our gross national product.
At those levels, war spending would amount to less than 1 percent of gross domestic product, not enough for major economic effect.