Can’t Japanese companies give more holidays, and see the work contract as a part time contract?

I currently work in the Netherlands, and get 40 days of paid leave annually. On top, we have 11 days of public holiday, and with a doctor’s note you can take sick leave for as long as 2 years (with 70% pay).

My Japanese job offer gives me 10 days of paid leave, 10 days of sick leave, and 15/16 days of public holiday.

Is it possible to somehow negotiate a higher holiday with Japanese companies? Can’t a part time contract be discussed allowing one to take more holidays? Is part time work not part of the Japanese work culture? Is there an unspoken ceiling on number of paid holidays one should get/ask? My line of work is mostly in science, tech and mathematics. In this field, working more hours does not necessarily equate to getting more work done. I prefer more free time/flexibility over money.

Thanks for your suggestions 🙂