Bondage of Lust (Joshoku no motsure, aka Entanglement of Lust) (1968, Japan)

1854×2570 pixels – 786KB

Blue Film: Estimation (Aoi firumu: Shinasadame) (1968, Japan)

1926×2694 pixels – 722KB

New Apartment Wife: Blue Film Woman (Shin danchizuma Blue Film no onna) (1975, Japan)

2138×3000 pixels – 867KB

Widow's Boarding House: Scent of Orgasm (Mibojin Geshuku: Hatsunaki) (1979, Japan)

2129×3000 pixels – 980KB

Not listed by IMDb.

Geisha vs. Ozashiki Stripper (Hakkin nikubuton) (1975, Japan)

1709×2410 pixels – 470KB
This one's unclear to me. I can't read Japanese and not 100pct sure this links to a right IMDb profile. If you can read the poster and/or more familiar with Nikkatsu legacy then myself - pls comment/confirm this.
Thanks!

Beads From a Petal (Kaben no shizuku) (1972, Japan)

1707×2406 pixels – 566KB