Nhk Spring Co., Ltd.

Norio Horle

Masao Hanya

Yasuji Takagi

Osamu Ohkawara

Kouji Uozumi

A head suspension for a disk drive has support plate means ( ) serving as a carriage arm and a load beam ( ). The load beam consists of a rigid part ( ) and a resilient part ( ), to apply load to a slider ( ) of a head. The support plate means ( ) consists of at least layered two plates ( ). At least one ( ) of the plates ( ) has a thickness (t2) appropriate for forming precision holes therethrough by etching. A pivot hole ( ) is formed through the plate ( ). A loose hole ( ) larger than and substantially concentric with the pivot hole is formed through the plate ( ). The plates ( ) have improved flatness, and the pivot hole has improved accuracy.

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Yokohama, Japan

Norio Horle