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Dive into the research topics where Katsuhiro Ishimura is active.

Publication


Featured researches published by Katsuhiro Ishimura.


Archive | 1993

Method and apparatus for alarm surveillance for an optical transmission system

Katsuhiro Ishimura; Hiroshi Takamoto; Shusei Aoki


Archive | 2000

Optical transmission system and optical channel available quality measuring method

Akira Sasaki; Shigeru Shikii; Hirokazu Ishimatsu; Naomi Oohashi; Katsuhiro Ishimura


Archive | 2005

Optical communication network

Katsuhiro Ishimura


Archive | 2001

Wavelength division multiplex transmission system

Mikiya Suzuki; Katsuhiro Ishimura


Archive | 1992

SUPERVISORY CONTROL SYSTEM FOR OPTICAL REPEATER

Chikao Aoki; Katsuhiro Ishimura; Hiroshi Takamoto; 克宏 石村; 周生 青木


Archive | 1989

Variable high-voltage generating circuit

Katsuhiro Ishimura; Shusei Aoki


Archive | 1989

High voltage generating circuit for light reception.

Katsuhiro Ishimura; Shusei Aoki


Archive | 1992

High voltage generating circuits including a transformerless voltage multiplier

Kazuro Takeda; Katsuhiro Ishimura


Archive | 1993

Monitor for optical transmission system

Katsuhiro Ishimura; Hiroshi Takamoto; Shusei Aoki


Archive | 1992

Schaltung zur Hochspannungserzeugung

Kazuro Takeda; Katsuhiro Ishimura

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