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Japanese Patent FAQs
Publication
Update 2024.10.23Q.How can I obtain patent publications?
You can obtain a copy of the publication from the JPO’s URL at
https://www.j-platpat.inpit.go.jp/p0000
(1) For a patent:
Select ““Patent number (B)” in the number type box, and enter the publication number in the number box. The publication number should be HXX-XXXXXX or 200X-XXXXXX. Then, click the “Search” button at the bottom center. Finally, click the blue underlined number, JP, 0X-XXXXXX,B, and you will find the data.
(2) For a patent application:
Select “A” in the number type box, and enter the publication number in the number box. The publication No. should be HXX-XXXXXX or 200X-XXXXXX. Then, click the “Search” button at the bottom center. Finally, click the blue underlined number, JP,0X-XXXXXX,A, and you will find the data.
The JPO started to provide electronic data for applications filed on or after January 1990 (H02).
To convert the year of the reign of an Emperor, please refer to the following conversion chart:
Conversion between the year of the reign of an Emperor and the Gregorian calendar year
|
Showa
|
Heisei
|
Reiwa
|
|||
| Showa 1 | 1926. Dec.25 ～ | Heisei 1 | 1989. Jan.8 ～ | Reiwa 1 | 2019. May.5～ |
| Showa 2 | 1927 | Heisei 2 | 1990 | Reiwa 2 | 2020 |
| Showa 3 | 1928 | Heisei 3 | 1991 | Reiwa 3 | 2021 |
| Showa 4 | 1929 | Heisei 4 | 1992 | Reiwa 4 | 2022 |
| Showa 5 | 1930 | Heisei 5 | 1993 | Reiwa 5 | 2023 |
| Showa 6 | 1931 | Heisei 6 | 1994 | Reiwa 6 | 2024 |
| Showa 7 | 1932 | Heisei 7 | 1995 | Reiwa 7 | 2025 |
| Showa 8 | 1933 | Heisei 8 | 1996 | Reiwa 8 | 2026 |
| Showa 9 | 1934 | Heisei 9 | 1997 | Reiwa 9 | 2027 |
| Showa 10 | 1935 | Heisei 10 | 1998 | Reiwa 10 | 2028 |
| Showa 11 | 1936 | Heisei 11 | 1999 | ||
| Showa 12 | 1937 | Heisei 12 | 2000 | ||
| Showa 13 | 1938 | Heisei 13 | 2001 | ||
| Showa 14 | 1939 | Heisei 14 | 2002 | ||
| Showa 15 | 1940 | Heisei 15 | 2003 | ||
| Showa 16 | 1941 | Heisei 16 | 2004 | ||
| Showa 17 | 1942 | Heisei 17 | 2005 | ||
| Showa 18 | 1943 | Heisei 18 | 2006 | ||
| Showa 19 | 1944 | Heisei 19 | 2007 | ||
| Showa 20 | 1945 | Heisei 20 | 2008 | ||
| Showa 21 | 1946 | Heisei 21 | 2009 | ||
| Showa 22 | 1947 | Heisei 22 | 2010 | ||
| Showa 23 | 1948 | Heisei 23 | 2011 | ||
| Showa 24 | 1949 | Heisei 24 | 2012 | ||
| Showa 25 | 1950 | Heisei 25 | 2013 | ||
| Showa 26 | 1951 | Heisei 26 | 2014 | ||
| Showa 27 | 1952 | Heisei 27 | 2015 | ||
| Showa 28 | 1953 | Heisei 28 | 2016 | ||
| Showa 29 | 1954 | Heisei 29 | 2017 | ||
| Showa 30 | 1955 | Heisei 30 | 2018 | ||
| Showa 31 | 1956 | Heisei 31 | 2019. ～Apr.30 | ||
| Showa 32 | 1957 | ||||
| Showa 33 | 1958 | ||||
| Showa 34 | 1959 | ||||
| Showa 35 | 1960 | ||||
| Showa 36 | 1961 | ||||
| Showa 37 | 1962 | ||||
| Showa 38 | 1963 | ||||
| Showa 39 | 1964 | ||||
| Showa 40 | 1965 | ||||
| Showa 41 | 1966 | ||||
| Showa 42 | 1967 | ||||
| Showa 43 | 1968 | ||||
| Showa 44 | 1969 | ||||
| Showa 45 | 1970 | ||||
| Showa 46 | 1971 | ||||
| Showa 47 | 1972 | ||||
| Showa 48 | 1973 | ||||
| Showa 49 | 1974 | ||||
| Showa 50 | 1975 | ||||
| Showa 51 | 1976 | ||||
| Showa 52 | 1977 | ||||
| Showa 53 | 1978 | ||||
| Showa 54 | 1979 | ||||
| Showa 55 | 1980 | ||||
| Showa 56 | 1981 | ||||
| Showa 57 | 1982 | ||||
| Showa 58 | 1983 | ||||
| Showa 59 | 1984 | ||||
| Showa 60 | 1985 | ||||
| Showa 61 | 1986 | ||||
| Showa 62 | 1987 | ||||
| Showa 63 | 1988 | ||||
| Showa 64 | 1989 ～Jan.7 | ||||
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