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Dive into the research topics where Yoichi Yaguchi is active.

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Featured researches published by Yoichi Yaguchi.


Fifth International Symposium on Laser Precision Microfabrication | 2004

Fabrication of precision microholes and structures with smooth surfaces by a high repetition rate femtosecond laser

Takayuki Nakaya; Daisuke Shibata; Hidetoshi Takeda; Hiroaki Toshima; Toshiro Kotaki; Kazuhiko Sunakawa; Yoichi Yaguchi

Precision micro holes and structures with smooth internal surfaces are introduced. We adopted a high repetition rate femtosecond laser to form optically damaged structures inside a silica glass. The glass is dissolved by HF aqueous solution after the laser irradiation. Through this process, we could obtain micro structures with smooth internal surfaces. We investigated the effects of laser repetition rate on surface roughness. It is suggested that one of the causes increased hole surface roughness is the increase in the defects by the laser irradiation.


Archive | 1998

Semiconductor light-emitting device chip

Teruo Kuroiwa; Kazuhiko Sunakawa; Mitsuru Watanabe; Yoichi Yaguchi; 満 渡辺; 洋一 矢口; 和彦 砂川; 輝夫 黒岩


Archive | 2002

Crystal habit face sapphire plate material and method of producing the same

Toshiro Furutaki; Yoko Hatakeyama; Tsugio Sato; Kazuhiko Sunakawa; Yoichi Yaguchi; 次男 佐藤; 敏郎 古滝; 洋子 畠山; 洋一 矢口; 和彦 砂川


Archive | 2002

Method for growing sapphire sheet material and sapphire sheet material

Toshiro Furutaki; Yoko Hatakeyama; Tsugio Sato; Kazuhiko Sunakawa; Yoichi Yaguchi; 次男 佐藤; 敏郎 古滝; 洋子 畠山; 洋一 矢口; 和彦 砂川


Archive | 1993

Laser marking method to transmittable base alloy

Naoko Iwashimizu; Isamu Takahashi; Yoichi Yaguchi; 直子 岩清水; 洋一 矢口; 勇 高橋


Archive | 1992

Watch exterior parts and manufacturing method thereof

Nobuyuki Kitagawa; Toshio Nomura; Yoichi Yaguchi; Hidehiro Uchiumi; Naoko Iwashimizu


Archive | 2000

Method of producing single crystal material, seed substrate, die and device for producing single crystal material

Toshiro Furutaki; Tsugio Sato; Kazuhiko Sunakawa; Hiroaki Toshima; Yoichi Yaguchi; 次男 佐藤; 敏郎 古滝; 博昭 戸嶋; 洋一 矢口; 和彦 砂川


Archive | 2004

Method of forming micro-hole having tapered shape

Toshiro Furutaki; Takayuki Nakatani; Kazuhiko Sunakawa; Yoichi Yaguchi; 隆幸 中谷; 敏郎 古滝; 洋一 矢口; 和彦 砂川


Archive | 2016

Armband für eine Armbanduhr.

Susumu Shibata; Isamu Takahashi; Yoichi Yaguchi; Hiroshi Matsumura


Archive | 2003

POLISHING METHOD OF GaN AND POLISHING AGENT FOR GaN

Hideo Aida; Toshiro Furutaki; Kazuhiko Sunakawa; Atsuko Takeuchi; Yoichi Yaguchi; 英雄 会田; 敏郎 古滝; 洋一 矢口; 和彦 砂川; 敦子 竹内

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Naoko Iwashimizu

Sumitomo Electric Industries

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Hidehiro Uchiumi

Sumitomo Electric Industries

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Nobuyuki Kitagawa

Sumitomo Electric Industries

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Toshio Nomura

Sumitomo Electric Industries

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