Epson Toyocom tries to find new markets for it's Quartz sensors.

Currently quartz based motion sensors are mainly used in digital cameras to stabilize the photos. Epson Toyocom, which is the result of a recent merger between the Quartz Device Operations Division of Seiko Epson and Toyo Communication Equipment pushes new kinds of products that use their technology.
One of them is the Gyrosensor Golf Putter. An attachment with a LCD display is fitted to the putter. It measures the trajectory and speed of the swing, as well as impact data. The golfer is then able to analyze his swing right there on the display. Apparently Korean Infics Inc. will productize this high-tech putter.
Other product ideas are to integrate a Quartz sensor into cleaning robots and use it for a new 3D mouse.
More details in this article on the CEATEC site and on the Epson Toyocom site (Japanese).