SH

Seizo Hayashi

Sumitomo Electric Industries: 11 patents #2,408 of 21,551Top 15%
PA Panasonic: 1 patents #13,264 of 21,108Top 65%
📍 Yokkaichi, KY: #1 of 1 inventorsTop 100%
Overall (All Time): #426,790 of 4,157,543Top 15%
12
Patents All Time

Issued Patents All Time

Showing 1–12 of 12 patents

Patent #TitleCo-InventorsDate
6684451 Vacuum cleaner Tomonori Kato, Tamaki Nishikori, Hiroshi Hayakawa, Naoyuki Ohara, Koichi Ito +1 more 2004-02-03
6437465 Rotary brush device and vacuum cleaner using the same Hiroshi Nishimura 2002-08-20
6400048 Rotary brush device and vacuum cleaner using the same Hiroshi Nishimura 2002-06-04
6345411 Vacuum cleaner Tomonori Kato, Tamaki Nishikori, Hiroshi Hayakawa, Naoyuki Ohara, Koichi Ito +1 more 2002-02-12
6323570 Rotary brush device and vacuum cleaner using the same Hiroshi Nishimura 2001-11-27
D363163 Tool caddy for a portable appliance Kunio Funatsu, Thomas William Granzow 1995-10-17
5144714 Vacuum cleaner Hiroshi Mori, Hiroshi Hayakawa, Tomomi Mitani 1992-09-08
4977640 Floor nozzle for vacuum cleaner Akihiro Hirano 1990-12-18
4746092 Apparatus for supporting an electric blower of a vacuum cleaner Hidenori Kitamura, Yuichi Shimizu 1988-05-24
4716620 Vacuum cleaner Hidenori Kitamura, Yuichi Shimizu 1988-01-05
4637092 Vacuum cleaner with agitator Kenji Okano, Nobuhiro Hayashi 1987-01-20
4217674 Upright vacuum cleaner Shinya Tsutsumi, Yoshihiro Kuroki 1980-08-19