JI

Joo Ishihara

HI Hitachi: 4 patents #8,942 of 28,497Top 35%
Overall (All Time): #1,305,732 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
4697320 Roll for a rolling mill, method of producing the same and the rolling mill incorporating the roll Toshio Ogawa, Masashi Era, Ken Sato 1987-10-06
4668591 Magnetic separator matrix of cut pieces of an elongated crystalline magnetic alloy Tetsuroh Minemura, Masaichi Nagai, Takeo Tamamura 1987-05-26
4560404 Method of producing material for superconductor Katsuzo Aihara, Naofumi Tada, Yasuo Suzuki, Toshio Ogawa 1985-12-24
4301855 Apparatus for producing metal ribbon Hideo Suzuki, Isao Ikuta, Sadami Tomita 1981-11-24