Masaaki Ona

KS Kabushiki Kaisha Strawberry: 3 patents #1 of 11Top 10%

📍 Nagaoka, JP: #50 of 243 inventorsTop 25%

Overall (All Time): #1,590,615 of 4,157,543Top 40%

Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date
6985759	Opening/closing structure for a flip attached to a portable phone	—	2006-01-10
6633643	Hinge structure for collapsible portable phone	—	2003-10-14
5966776	Hinge device	—	1999-10-19