Masaru Eguchi started photography in 2002 and won domestic and foreign awards as a photographer. Design career is from 2006. As a designer, he has designed the world's No. 1 badminton racket maker, stationery brand design, traditional Japanese technology brand design, and social business design. Later he founded the design office "Sunpono" in 2016. He sees the "health of the business" as improving the profits of the business and improving the well-being of the workers and the people living in it.