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Dive into the research topics where Takehiko Umeyama is active.

Publication


Featured researches published by Takehiko Umeyama.


Archive | 1999

Optical information reproduction device and signal processing circuit used therein

Manabu Tsukamoto; Masayoshi Shimamoto; Kenji Goto; Takehiko Umeyama; Yoshiji Inoue


Archive | 1996

Amplifier circuit suppressing disturbance signal produced by magnetoresistive head

Takehiko Umeyama; Tsutomu Kamifuji


Archive | 2003

DEVICE FOR MEASURING TEMPERATURE OF SEMICONDUCTOR INTEGRATED CIRCUIT

Takehiko Umeyama; Kazuyuki Ohmi


Archive | 1999

Method of and apparatus for optical information reproduction

Masayoshi Shimamoto; Takehiko Umeyama; Yoshiji Inoue


Archive | 1997

Circuit for processing signals from a magneto-resistive head

Takehiko Umeyama; Tsutomu Kamifuji


Archive | 1999

Write current driving circuit

Toru Takeuchi; Takehiko Umeyama


Archive | 2002

Current driver circuit for supplying write current to a write head while changing a flow direction of the write current

Toru Takeuchi; Takehiko Umeyama


Archive | 1996

Amplifier with capacitive feedback for driving a magneto-resistive head

Masashige Tada; Takehiko Umeyama


Archive | 2000

Magneto-resistive element signal amplifying circuit

Takehiko Umeyama; Toru Takeuchi


Archive | 2002

Pulse current generation circuit

Taiji Kabayama; Motokuni Saeki; Takehiko Umeyama

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