A six-employee company in Tokyo has developed a "painless" injection needle, much to the relief of children as well as adults.

Okano Industrial Corp. has created one of the world's sharpest needles. The 2-cm-long needle features a 0.06-mm-diameter injection hole at its point.

The company has also developed a system capable of producing 10 million injection needles a month. The needles are expected to be supplied to hospitals nationwide by Terumo Corp., a Tokyo-based major medical equipment manufacturer, by the end of the year.