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Seiya Kitagawa

Fujitsu

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Publication

Featured researches published by Seiya Kitagawa.

Archive | 2001

DC-DC converter circuit

Seiya Kitagawa

Archive | 1998

Step-up/down DC-to-DC converter

Seiya Kitagawa

Archive | 2002

Power supply apparatus with chargeable battery and charge/discharge method

Seiya Kitagawa

Archive | 1999

Controller for DC-DC converter

Kyuichi Takimoto; Toshiyuki Matsuyama; Hidekiyo Ozawa; Seiya Kitagawa

Archive | 2000

Battery charge control circuit, battery charging device, and battery charge control method

Mitsuo Saeki; Seiya Kitagawa; Hidekiyo Ozawa; Toshiyuki Matsuyama

Archive | 1999

Power supply unit with simplified circuitry

Seiya Kitagawa

Archive | 2003

DC to DC converter producing output voltage exhibiting rise and fall characteristics independent of load thereon

Mitsuo Saeki; Hidetoshi Yano; Hidekiyo Ozawa; Seiya Kitagawa; Toshiyuki Matsuyama; Takashi Matsumoto; Kyuichi Takimoto; Yoshiaki Sano

Archive | 1999

DC-to-DC converter circuit having a power saving mode

Seiya Kitagawa; Toshiyuki Matsuyama; Hidekiyo Ozawa

Archive | 1998

DC-DC converter control circuit

Kyuichi Takimoto; Takashi Matsumoto; Toshiyuki Matsuyama; Seiya Kitagawa

Archive | 2000

Control circuit of a synchronous rectification type DC-DC converter

Seiya Kitagawa

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Collaboration

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Toshiyuki Matsuyama

Fujitsu

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Hidekiyo Ozawa

Fujitsu

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Kyuichi Takimoto

Fujitsu

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Mitsuo Saeki

Fujitsu

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Takashi Matsumoto

Fujitsu

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Hidekiyo C

Fujitsu

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Hidetoshi Yano

Fujitsu

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Mitsuo c

Fujitsu

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Yoshiaki Sano

Fujitsu

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o Fujitsu Limited Kawasaki Ozawa

Fujitsu

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