	dainippon ink to invest in quixote quix quixote corp said dainippon ink and chemicals inc of japan will buy shares of quixote common stock a pct stake for mln dlrs or dlrs a share it said the two companies also agreed to share the results of their research and development activities in optical disc technology dainippon inc s optical disc technology focuses on the development of a new direct read after write optical disc and an advanced erasable optical disc quixote said its wholly owned subsidiary laservideo inc is making advancements in the art of mastering and manufacturing compact discs cd roms and laser read videodiscs quixote said the agreement with dainippon which has annual sales of more than two billion dlrs provides for a dainippon representative to sit on the laservideo board of directors reuter 
