2010

- Standing pencil case and other design and idea patent registration
- Obang cushion (pinwheel type)

2008

- Heart petal cushion
- Flower petal cushion

1998/1999

- Utility model registration of glossy polish

1997

- Multi-purpose mat
- Traffic caution sign
- Mat <Elephant>

1996

- Design registration of panel for mats & Mat <Puzzle>