A power conversion startup buddies up with Japan’s electronics giants

A startup that makes more efficient power conversion devices has raised money from, and partnered with, a group of Japanese electronics giants. Transphorm is a venture-backed startup and its move is a symbol of the growing importance of corporate partners as well as overseas investors in cleantech.

The real reason for the greentech IPO missteps

Three greentech IPO hopefuls pulled the plug on their public market plans this month. There’s a lot that these companies have in common, and it’s not that they’re green: it’s the lack of profits and even revenues.

Kurion dominates Fukushima radioactive water cleanup

Nuclear waste cleanup startup Kurion (which I once called the most successful greentech startup you haven’t heard of) says it’s responsible for removing 70 percent of the radioactivity from the waste water at the Fukushima nuclear plant after last year’s disaster.