Mr. Oishi works in whatever material is handy in various genres. Most often he has pens, pencils, cameras, and computers. He has spent extensive time with paint and ceramics. One year was spent studying architecture where he was able to deepen his knowledge of 3-D modeling, CAD, and other forms of digital manipulation and woodworking.
He often draws or photographs whatever is happening. His designs flows from extreme control to controlled chaos. Often drawings are an amalgam of sketchy, vigorous mark making that carve an image from the page.
His work has been exhibited in Honolulu, St Louis, and Minneapolis. Recently, his work has been most prominent at the Honolulu Museum of Art School's Mezzanine Gallery for what has become Mangabento's annual summer exhibit.
Straight out of college he started working in schools and has taught General Art, Ceramics, Drawing and Painting, Digital Media (videography), Graphics, and Aquascience at several schools.
He volunteered with or worked with many art organizations including the City and County of Honolulu's art collection, the Academy of Arts, Contemporary Museum, and the Japanese Cultural Center. He remains active in the art community organizing events with Mangabento and participating in Comic Jam Hawaii. In the past he participated with the Printmakers, Artists of Hawaii and the Watercolor Society.
In his free time he built a fence, a cabinet and redid the joists in his grandmother's house with the skills he learned in art school to build strainers and frames.
When he can he travels, often by bicycle and has been to most of the major islands, half the United states, parts of Europe, Japan, Canada, and Mexico.