My family's records were taken during the Japanese internment here in America during WWII. I am a 4th generation Japanese American.
I do not speak or read Japanese, which is a significant hinderance, but I do know that when you locate the data on the Kanemoto name it will span hundreds of years (samurai had to trace ancestry back to the origins).
I have tried to locate the kanemoto mon (crest), but it has been next to impossible.
I do wish you the best of luck.