KK

Kouichi Kuroda

SI Sumitomo Metal Industries: 11 patents #16 of 1,462Top 2%
Nissan Motor Co.: 6 patents #1,257 of 8,689Top 15%
NM Nippon Steel & Sumitomo Metal: 3 patents #369 of 1,491Top 25%
NC Nippon Chemi-Con: 2 patents #56 of 199Top 30%
SC Sanyo Electric Co.: 2 patents #2,557 of 6,347Top 45%
NS Nippon Steel: 1 patents #2,111 of 4,423Top 50%
IC Ishikawajima-Harima Heavy Industries Co.: 1 patents #251 of 611Top 45%
SI Sumitomo Heavy Industries: 1 patents #424 of 917Top 50%
IL Isuzu Motors Limited: 1 patents #414 of 908Top 50%
Overall (All Time): #146,468 of 4,157,543Top 4%
27
Patents All Time

Issued Patents All Time

Showing 26–27 of 27 patents

Patent #TitleCo-InventorsDate
4959985 Method of manufacturing metallic tube with spiral fin Chihiro Hayashi, Kazuyuki Nakasuji 1990-10-02
4901553 Method of manufacturing a finned tube Chihiro Hayashi, Kazuyuki Nakasuji 1990-02-20