Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
Cutting instrument
A cutting instrument has a cutting blade portion formed with a skin made of an electrode material or a reaction product of the electrode material, the electrode material having been molten by pulse discharges induced between the cutting blade portion and an electrode in a machining liquid or gas, having as the electrode one of a mold molded from powder of a kind or powder of a mixture of kinds out of a metal or metals, a metal compound or metal compounds, and a ceramic or ceramics, and a heat-treated mold being the mold as heat-treated.
IHI Corporation
B C C
B26B C23C C23C
inventional inventional inventional
Hiroki Yukihiro Takashi Mitsutoshi Hiroyuki Sadao
Yoshizawa Shimoda Furukawa Watanabe Ochiai Doi