Panasonic Intellectual Property Management Co., Ltd.

Yuuki Sasagawa

Tomohiro Kanazawa

Naoki Kohyama

Tetsuji Shibata

Yoshihiro Iguchi

Kenshi Tsuji

Yoshiyuki Kita

Atsushi Shimada

Akitoshi Kasahara

Toshiyuki Tani

A metal wire, which is one of a tungsten wire and a tungsten alloy wire, includes alkali metal on the surface thereof. The amount of alkali metal is at most 2.0 μg per 1 g of the metal wire.

Metal wire

A metal wire containing tungsten is provided. A tungsten content of the metal wire is at least 90 wt %. A tensile strength of the metal wire is at least 4000 MPa. An elastic modulus of the metal wire is at least 350 GPa and at most 450 GPa. A diameter of the metal wire is at most 60 &#x3bc;m. An average crystal grain size of the metal wire in a cross-section orthogonal to an axis of the metal wire is at most 0.20 &#x3bc;m.

Metal wire, saw wire, cutting apparatus, and method of manufacturing metal wire

Growing community of inventors

Osaka, Japan

Yuuki Sasagawa