YC

Yoshimasa Chiba

HC Hitachi Industries Co.: 2 patents #1 of 49Top 3%
HT Hitachi Plant Technologies: 1 patents #116 of 279Top 45%
TO Tonen: 1 patents #126 of 264Top 50%
Overall (All Time): #1,225,412 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
8398375 Impeller Kohei Tanaka, Sadashi Tanaka, Koji Hayashi, Tomohiro Naruse, Takaki Fukuchi +1 more 2013-03-19
7882632 Industrial pump and manufacturing method thereof Tetsuya Yoshida 2011-02-08
7198457 Single-shaft multistage pump Choichi Ishikawa, Hiroyuki Katsura, Daimon Abe 2007-04-03
5554672 Epoxy resin primer for lining of wet concrete surfaces Makoto Saito, Hiroyuki Misaki 1996-09-10