Tatsuya Hamaguchi

A misfit high-school science teacher decides to build his own atomic bomb. (imdb)

Seitō Nezumi Kozō (1972) is a dark parody of the Edo period Robin Hood story, Nezumi Kozo.

Acclaimed Nikkatsu studio pinku eiga filmmaker Chusei Sone directed this action-packed softcore melodrama concerning a group of female ninjas who use sexual magic along with their considerable fighting skills to protect their province from takeover by a ruthless shogun and his band of fighters. (Robert Firsching, All Movie Guide)

Ryu, a sinister transfer student with a dark past, sexually assaults his way through his nubile female classmates to his ultimate conquest, the leggy athletic champ and class president Misa. Tadao is also in love with Misa and wants to take her virginity for himself. The big Eros High School track meet is happening soon. Will these two boys ruin her chance of winning? What strange secret is Misa hiding from everyone? Why is Ryu prancing around in a banana hammock with a pet pig? (synapse-films.com)

Mitsuko has the sensation of being watched. The feeling doesn't pass. Then, one day, her husband, a jewerly dealer, invites his product-buyer home for dinner and some drinks. Instantly, Mitsuko realizes this is the man who has been spying on her. When the husband gets drunk and dozes off, Mitsuko is raped by this man. (Sex Files Japanese Cinema Encyclopedia)

In the final installment of the risqué Office Lady series, Asami Ogawa plays a straight-laced office worker whose private life is far from staid. In addition to carrying on a torrid affair with her boss, the woman is also arranging sexual trysts for her widowed father -- both of which would raise some eyebrows among her colleagues who've been duped by her demure appearance. Michio Hino and Tatsuya Hamaguchi co-star; Masaru Konuma directs. (mubi)

A group of young women is thrown into a horrible juvenile hall, due to their illegal acts. They soon wish they were back on the outside, as a gang of inmates subjects this "fresh meat" to the horrors of being locked up. Mayumi, a new inmate with a mysterious past, stands up for herself and fights back! NO ONE is going to push her around, and she hatches an escape plan to seek revenge on the person who had her incarcerated. (synapse-films.com)

Sukeban Deka: Dirty Mary is a 1974 Roman Porno film directed by Yasuharu Hasebe and starring Hitomi Kozue.[1] It is unrelated to the popular Sukeban Deka series and is, instead, a parody of the US Dirty Harry series. Not successful on its first release, it was a set-back for director Hasebe's career. (themoviedb.org)

It is the sixth film in the Eros Schedule Book series showing life inside a convent.

A serial rapist prowls the streets, violating women in a ghastly fashion and disposing of the bodies in an abandoned building. Over the course of the film, several people witness the crimes but instead of reporting them they just start raping and killing as well.

The lovely Ryoko is attending a Japanese University on an exchange program. She’s pretty, vulnerable, shy, and full of mysterious secrets. Meeting up with her long-time friend Rumiko, Ryoko shuns her aggressive lesbian advances by saying she’s still a virgin. Rumiko is surprised at this revelation and, over the next few days, she takes Ryoko on a series of misadventures to help her with her sexual awakening...

Akemi is a laboratory technician who spends her evenings spying on her gangster neighbor as he makes love to his stripper girlfriend. The objects of Akemi's voyeuristic attentions learn of her interests and suggest that she would make a fine prostitute. Not surprisingly Akemi agrees and channels her interests into this more lucrative occupation.

A nurse is raped in a doctor's office. The caresses of the perpetrator keep coming to his mind after the assault. She will start a search for the perpetrator which will show her the darker side of her medical institution.

An early 70s Roman Porno.

Pinku film from 1974.

Follows Ryoko, an older nightclub host, who has to choose between a relationship with her loser boyfriend who owes the yakuza money, and her music producer.

The Sukeban Mafia, the name the girl gang has chosen, not proper yakuza, invite Onichan and Miki to join them. First stop, working their prostitution ring. Miki is captivated by the power of the gang and ready to please, but Onichan isn't impressed.

The story of a bank clerk who embezzled money for her lover which he then proceeds to lose while gambling on boat races.

Nikkatsu rape and revenge flick. A high school student is captured and sexually tortured.

Toda, a disillusioned journalist who was once a part of the student movement, recalls his former youth when he met a confident young woman through his work.

Roman Porno from 1974.

Shizu is a housewife whose husband has just flown to Germany to work in his company's branch office. During her husband's absence, Shizu makes her first fatal mistake with her brother-in-law which leads to other men and her involvement with gangsters, dragging her into a mire from which she cannot escape.

A wandering matchmaker finds she must defend the brothel she is staying at when a local yakuza boss targets the women working there with a hired gang of three brothers with unusual sexual powers.

A man and woman meet when he pulls her out of an icy fountain that she has just jumped into. But their developing romance is marred by bad friends, money troubles, and illegal sex work.