NH

Norishige Hirakawa

IC Iwaki Co.: 3 patents #3 of 53Top 6%
WC World Chemical Co.: 1 patents #6 of 22Top 30%
Overall (All Time): #1,298,743 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
5154587 Magnet pump Yozi Mori 1992-10-13
D300034 Bellows pump Kazuhiko Sato, Satoru Hagiwara 1989-02-28
D296556 Bellows pump Kazuhiko Sato, Satoru Hagiwara 1988-07-05
4684333 Self-priming pump Kazuo Okada, Kazuhiko Sato 1987-08-04