The autonomous security system developer, which is backed by NTT Docomo, Konica Minolta and Flextronics, has closed the first half of a mini-IPO.

Knightscope, the US-based security robot producer that counts corporates NTT Docomo, Konica Minolta and Flextronics as investors, closed $10m of a planned $20m regulation A+ public offering yesterday.

The offering, described by the company as a “mini-IPO”, involves it issuing shares in an offering where investors can buy stock by investing a minimum of $999. It raised the $10m from an investor base of more than 3,000 people, and has until October 10 to close the offering.

Knightscope produces mobile…