In a country where owners of beloved pets often wish to cremate them when they die to retain their ashes as keepsakes, a company has come up with technology that can handle even the smallest animals such as ornamental fish. Progress Co., an Osaka-based company, has developed a way of adjusting the intensity of the flames as well as the strength of the jet of air that is blown in to leave the ashes in the best condition, with some bones remaining. In Japan, cremation ceremonies for people often involve collecting the bone pieces that remain to be kept with the ashes, and there is demand for the…