Further improvement is expected in November, driven by strength in housing construction and exports.
"Business conditions in the Japanese manufacturing economy improved for the ninth consecutive month and at a rapid pace in November, driven for the most part by an expansion of both foreign and domestic demand," said Claudia Tillbrooke, an economist at Markit.
Markit's purchasing managers index, which measures manufacturing activity, rose to 55.1 in November from 54.2 in October. A reading above 50 suggests expansion.
The government and central bank have set a target for attaining a 2 percent inflation rate within two years. So far, economists say most of the increase in prices has come from a weakening in the Japanese yen, which erodes consumer spending power and increases costs in yen terms for imports of fuel, food and industrial components.
The 0.3 percent rise in prices excluding food and fuel was the highest since August 1998 and the first positive reading since 2008.
Prices for many daily necessities have risen. The data from October showed costs for electricity rose 8.2 percent, food prices rose 14 percent, transport costs climbed 3 percent, gasoline 7 percent and insurance rates 10 percent.
Japan's economy grew 1.9 percent in July-September, sharply lower than the 3.8 percent rise in the previous quarter. A planned 0.3 percentage point increase in April in the national sales tax, to 8 percent, is expected to push consumer spending higher in coming months, before a drop following the tax hike.
To sustain the recovery that began late last year, economists say companies must invest more and raise wages. Progress toward those goals appears limited.
Workers incomes fell an average of 1.3 percent in October. Household spending, which accounts for nearly two-thirds of Japan's economic activity, rose 0.9 percent in real terms but showed no increase from the month before. Excluding housing costs, spending fell 1.5 percent from the month before and fell 0.3 percent from September.