HH

Harunobu Hirayama

KA Kao: 2 patents #1,388 of 3,221Top 45%
Overall (All Time): #1,627,483 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6047435 Cleaning cloth and cleaning apparatus Youichi Suzuki, Keiji Abe, Yasuki Tsutsumi, Sachiko Aoki, Fumihiko Yoshiro +1 more 2000-04-11
5953784 Cleaning cloth and cleaning apparatus Youichi Suzuki, Keiji Abe, Yasuki Tsutsumi, Sachiko Aoki, Fumihiko Yoshiro +1 more 1999-09-21
D391711 Handy mop Masahito Hanaoka, Youichi Suzuki, Fumihiko Yoshiro 1998-03-03