C Itoh Electronics Inc, which has ended manufacturing of display terminals, is making further changes in its US operations: the Irvine, California subsidiary of the Japanese trading giant, has formed three new companies that will autonomously market and distribute their product lines in the US in what Itoh says is the end of the US restructuring; the three new companies have absorbed all marketing, sales, distribution and support activities of C Itoh Electronics and are C-Tech Electronics Inc for personal computer and office printers; CIE America Inc, taking in the Business Product Group, OEM Sales and Licensing Group, and Export Group for heavy-duty printers; and Image Systems Inc, high-volume ion deposition printers; their suppliers include Tokyo Electric Co, Citizen Watch Co and Olympus Optical Co.