Depending on your purpose, Japanese patent information can be found from following sources.
Available Japanese patent databases:
- NRI cyber patent
- ATMS PatentSquare
- Patent Integration
- Panasoni PatentSquare
- JPO IPDL
You may want to use classifications (IPC, F-Term, File Index), keyword strings and combination to search Japanese patents. Let’s use IPDL database provided by JPO as examples to illustrate the search screens.
F-term or FI classification search
You can find Japanese patents by using F-term and/or FI:
Using F-term and/FI
Example: please refer to the screenshot below.
Find patent from number
You can easily get Japanese patent document if you have already had a number:
Find document from number