YH

Yasuyuki Hayakawa

JS Jfe Steel: 2 patents #23 of 132Top 20%
Overall (2004): #34,462 of 270,089Top 15%
2
Patents 2004

Issued Patents 2004

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6811619 Method of manufacturing grain-oriented electrical steel sheets Hideo Yamagami, Seiji Okabe, Takeshi Imamura, Minoru Takashima, Mitsumasa Kurosawa 2004-11-02
6676771 Method of manufacturing grain-oriented electrical steel sheet Minoru Takashima, Tetsuo Toge, Mitsumasa Kurosawa, Michiro Komatsubara 2004-01-13