NM

Nobuaki Marukawa

KS Kobe Steel: 2 patents #504 of 2,031Top 25%
KS Kobe Steel: 1 patents #937 of 1,773Top 55%
NC Nippon Koshuha Steel Co.: 1 patents #3 of 32Top 10%
📍 Toyonaka, JP: #420 of 1,166 inventorsTop 40%
Overall (All Time): #1,661,584 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5119850 Apparatus for processing a vibratory surface Katsumasa Tanaka, Hitoshi Satoh, Heijiro Kawakami 1992-06-09
5035752 Method for processing a vibratory surface Katsumasa Tanaka, Hitoshi Satoh, Heijiro Kawakami 1991-07-30
4291600 Process and apparatus for cutting circumferential surface to remove rod surface flaws Yosiyuki Kawaguchi, Takashi Nishida, Tadakazu Tanaka, Yoshinari Kontani 1981-09-29