Citation Data

Foreign patent publications that use Arabic and Roman numerals in

lieu of names to indicate the date show in order the day, month, and year, or

alternatively, the year, month, and day. Roman numerals always refer to the

month.

Japanese patent application publications show the date in Arabic

numerals by indicating in order the year of the reign of the Emperor, the month, and

the day. To convert the Japanese year of the Emperor to the Western calendar year,

for years prior to 1989, add 1925 to the JAPANESE YEAR. For example: 40.3.6 = March

6, 1965. For years after 1988, add 1988 to the JAPANESE YEAR.