SH

Seizo Hayashi

Sumitomo Electric Industries: 3 patents #267 of 3,352Top 8%
📍 Yokkaichi, KY: #1 of 1 inventorsTop 100%
Overall (2002): #21,307 of 266,432Top 8%
3
Patents 2002

Issued Patents 2002

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
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