SK

Shigenobu Koga

NS Nippon Steel: 3 patents #914 of 4,423Top 25%
FC Fuji Electric Co.: 1 patents #1,354 of 2,643Top 55%
NM Nippon Steel & Sumitomo Metal: 1 patents #786 of 1,491Top 55%
Overall (All Time): #1,226,019 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
8420990 Induction heating apparatus and induction heating method Hiroaki Mochinaga, Kazunari Ishizaki, Takaharu Kataoka, Kenji Umetsu, Yasuo Matsunaga +1 more 2013-04-16
7063780 Method for indirect-electrification-type continuous electrolytic etching of metal strip and apparatus for indirect-electrification-type continuous electrolytic etching Hisashi Mogi, Naruhiko Nomura, Masahiro Fujikura, Shuichi Yamazaki 2006-06-20
4439251 Non-oriented electric iron sheet and method for producing the same Yoshiaki Shimoyama, Ichiro Tachino 1984-03-27
4338143 Non-oriented silicon steel sheet with stable magnetic properties Yoshiaki Shimoyama, Katsuyki Ohba 1982-07-06