“…We have studied to ensure the reliability of optical devices [2][3][4][5][6] since 2001 and the development of highly moisture durable optical adhesives. [7,8] The author has reported the development of two kinds of new type moisture durable adhesives as alternatives for conventional epoxy resin adhesives, 353 ND, which are widely used for optical device assembly, under collaboration with two manufacturers, Nippon Kayaku Co., Ltd. [7], and The Yokohama Rubber Co., Ltd. [8], respectively.…”