*Masayuki Kobayashi1, Kazuyoshi Yamazaki1, Felipe Gomez Caballero2, Takuma Osato2, Takeshi Endo2, Masayuki Takemura2, Takeshi Nagasaki3, Takeshi Shima3
(1. Central Research Laboratory, Hitachi Ltd., 2. Hitachi Research Laboratory, Hitachi Ltd., 3. Hitachi Automotive Systems Ltd.)