The declining birthrate is a well-known issue in Japan, but for renowned inventor Dr. Yoshiro Nakamatsu, it is merely another challenge. Two weeks ago at a press conference in Tokyo, Nakamats, who prefers to drop the "u" from his name, unveiled a new bottle of Love Jet, a product first introduced nearly two decades ago that is said to boost a woman's level of the hormone dehydroepiandrosterone when applied to her private parts.

Seated behind his cluttered desk in Dr. Nakamats House, located in the upscale Shimouma neighborhood of Tokyo's Setagaya Ward, the inventor is very proud of the new version. "It has a dispenser that is smaller, making it perfect for her handbag. After a woman sprays Love Jet, men will flock around her," explains Nakamats earnestly, sharply dressed in a sparkling silver tie, velvet coat and gray trousers.

In addition to the seemingly magical properties within this liquid of lust, Nakamats, whose 3,000-plus inventions include work on the floppy disk and automatic pachinko machine, adds that the ¥4,000 item also comes with a triangle-shaped template with adhesive that assists a lady in trimming any pubic hair that might otherwise poke from the edges of her panties.