47 Laboratory
After careers at prestigious high-end audio equipment manufacturers Luxman and Kyocera, Mr. Junji Kimura founded 47 Laboratory in 1992. In naming his new company, Kimura took the colors of yellow (ki-iroi) and purple (mura-zaki), which contain the syllables of his family name, then coded the colors using resistor color-coding standard of 4 for yellow and 7 for purple. Thus was born 47 Laboratory.