Patent Leaderboard

SK

Shusaku Kunii

📍 Shinjuku, JP: #115 of 337 inventorsTop 35%

Overall (All Time): #2,361,706 of 4,157,543Top 60%

2

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
4377349	Ball point pen	—	1983-03-22
4280214	Wrist watch	Hitoshi Hirano	1981-07-21