The company, headquartered in the
Bunkyo ward of Tokyo, was founded in 1981 under the name , making it one of Japan's oldest
adult video firms. The Samm label's name was taken from
S&M and that genre dominated the company's videos in the early 1980s but the direction changed in the mid-1980s under the influence of three directors,
Kaoru Toyoda, Ryutaro Kanno and Yukihiko Shimamura. In 1984 the Miss Christine label was created for videos with single featured actresses. The Tiffany label came later and was made popular by actress Hikaru Hoshino. Among early AV actresses who performed for h.m.p. were Keiko Nakazawa who appeared for the Samm label with the video
Pakkeeji Zenmen o Hyōji released in 1986,
Rena Murakami, who debuted on the company's Miss Christine label in March 1988, and
AV Idol Yumika Hayashi who made her debut with the Miss Christine video
Shigamitsuku 18-sai: ojōsama wa shitanai in June 1989. In the decade of the 1990s, Maiko Yūki also made her debut with h.m.p.'s Miss Christine label. Bringing his own particular style was former
pink film director and screenwriter
Shuji Kataoka who joined the company in the early 1990s. Their official website h.m.p.online sells a variety of goods including adult DVDs (some on Blu-ray), downloadable video content and adult toys. The website also contains a valuable database of over 3700 h.m.p. titles which can be searched by title, series, genre, media and date.
UMD videos In July 2005, h.m.p., along with two other Japanese AV producers (Glay'z and
TMA), attempted to expand their offerings into a new medium. In the controversial venture frowned upon by
Sony,{{cite web The discs featured such h.m.p. superstars as Risa Coda{{cite web ==h.m.p. labels==