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Dive into the research topics where Kengo Yamaguchi is active.

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Featured researches published by Kengo Yamaguchi.


LAMP 2002: International Congress on Laser Advanced Materials Processing | 2003

Application of YAG laser welding to gas turbine components

Shuho Tsubota; Masahiko Mega; Koji Takahashi; Yoshitaka Uemura; Norihide Hirota; Kengo Yamaguchi

An investigation to apply YAG laser welding to gas turbine components was carried out. The materials of gas turbine such as Ni base alloy are difficult to weld by conventional arc welding methods because of large heat affection. But laser welding can reduce heat input compared with conventional methods and keeps the good repeatability. The welding parameter survey was carried out to satisfy the designing requirements. The YAG laser welding under appropriate conditions enables to prevent welding defects such as HAZ cracks and improves the weld joints quality and performance. Tensile test and low cycle fatigue test were carried out. Tensile strength and fatigue life of laser weld joints are same or higher than that of conventional manual TIG weld joints. The Automatic YAG laser welding system was also developed and put into practical use.


Archive | 2007

Photoelectric converter and method for fabricating the same

Youji Nakano; Yoshiaki Takeuchi; Kengo Yamaguchi; Yasuhiro Yamauchi


Archive | 2002

Method of closing working hole in gas turbine blade top

Masahiko Mega; Koji Takahashi; Yoshitaka Uemura; Kengo Yamaguchi; Masaya Kanikawa; Syuho Tsubota; Ken Fujita; Toshihiko Tsunatani; Minoru Ohara


Archive | 2005

Multi-junction thin film solar cell

Hiroomi Miyahara; Tatsuyuki Nishimiya; Shohei Noda; Yoshiaki Takeuchi; Kengo Yamaguchi; 弘臣 宮原; 賢剛 山口; 良昭 竹内; 立享 西宮; 松平 野田


Archive | 1998

Discharge electrode and high frequency plasma generator using the same, and feeding method therefor

Ryuji Horioka; Soji Kokaji; Masatoshi Kudome; Hiroshi Mashima; Shoji Morita; Masayoshi Murata; Yoshiichi Nawata; Koji Satake; Yoshiaki Takeuchi; Kengo Yamaguchi; Hideo Yamakoshi; 正敏 久留; 宏次 佐竹; 竜治 堀岡; 聡司 小鍛冶; 賢剛 山口; 英男 山越; 正義 村田; 章二 森田; 浩 真島; 良昭 竹内; 芳一 縄田


Archive | 2002

Turbine moving blade, turbine stationary blade, turbine split ring, and gas turbine

Yasuoki Tomita; Shigehiro Shiozaki; Kengo Yamaguchi; Hideaki Kaneko; Kotaro Ohshima


Archive | 2003

Plasma cvd equipment and method of manufacturing photoelectric converter

Kengo Yamaguchi; 賢剛 山口


Archive | 2002

Thin film solar cell and its manufacturing method

Kengo Yamaguchi; 賢剛 山口


Archive | 2003

Method of repairing a Ni-base alloy part

Taiji Torigoe; Ikuo Okada; Kouji Takahashi; Minoru Ohara; Kengo Yamaguchi; Sunao Aoki


Archive | 2000

Crystal system solar cell and its producing method

Katsuhiko Kondo; Tatsuyuki Nishimiya; Yoshiaki Takeuchi; Kengo Yamaguchi; 賢剛 山口; 良昭 竹内; 立享 西宮; 勝彦 近藤

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Satoshi Sakai

National Institute of Advanced Industrial Science and Technology

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Akemi Takano

Mitsubishi Heavy Industries

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Yoshiaki Takeuchi

Mitsubishi Heavy Industries

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Koji Takahashi

Mitsubishi Heavy Industries

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Minoru Ohara

Mitsubishi Heavy Industries

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Yasuyuki Kobayashi

Mitsubishi Heavy Industries

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Masahiko Mega

Mitsubishi Heavy Industries

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Nobuki Yamashita

Mitsubishi Heavy Industries

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Yoshitaka Uemura

Mitsubishi Heavy Industries

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