Japanese for patent agents

To tell the truth, it's a little late to learn again. If you work, you will be too busy to learn another language well.

Patent literature involves many technical terms and laws, which requires high accuracy in translation.

My personal suggestion is to learn English well before considering learning a foreign language.

If you have a basic knowledge of small languages, you can continue your studies or even give up English. There is still a market for small language agents.