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Dive into the research topics where Takayo Yamamoto is active.

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Featured researches published by Takayo Yamamoto.


Materials Science Forum | 2010

Electrodeposition of CuSn Alloy from Noncyanide Sulfosuccinate Bath

Toshihiro Nakamura; Tomio Nagayama; Takayo Yamamoto; Yasushi Mizutani; Hidemi Nawafune

Recently the regulation of nickel usage because of allergy issues has been strengthened in Europe and other countries. The Cu-Sn alloy (40-55 mass%Sn) is called “speculum alloy” or “white bronze” and has a silvery-white appearance. We developed a noncyanide Cu-Sn alloy plating bath consisting of sulfosuccinic acid, L-methionine and polyoxyethylene-α-naphthol, from which silvery-white Cu-Sn alloy (40-55mass%Sn) were obtained. It is anticipated that the Cu-Sn alloy films will be used as an alternative to nickel undercoating for decorative gold or chromium electroplating.


Electrochimica Acta | 2016

Thermal expansions and mechanical properties of electrodeposited Fe–Ni alloys in the Invar composition range

Tomio Nagayama; Takayo Yamamoto; Toshihiro Nakamura


Meeting Abstracts | 2013

Fabrication of Low CTE Metal Masks by the Invar Fe-Ni Alloy Electroforming Process for Large and Fine Pitch OLED Displays

Tomio Nagayama; Takayo Yamamoto; Toshihiro Nakamura; Yasushi Mizutani


Surface & Coatings Technology | 2017

Properties of electrodeposited invar Fe–Ni alloy/SiC composite film

Tomio Nagayama; Takayo Yamamoto; Toshihiro Nakamura; Yutaka Fujiwara


Journal of The Surface Finishing Society of Japan | 2011

Thermal Expansion Properties of Invar Alloy Electrodeposits

Takayo Yamamoto; Tomio Nagayama; Toshihiro Nakamura; Yasushi Mizutani


Archive | 2010

METHOD FOR MANUFACTURING IRON-NICKEL ALLOY PLATING FILM HAVING HIGH HARDNESS AND LOW THERMAL EXPANSION COEFFICIENT

Tomio Nagayama; Toshihiro Nakamura; Hajime Okumura; Takayo Yamamoto; Shigeru Yamato; 俊博 中村; 茂 大和; 元 奥村; 貴代 山本; 富男 永山


SID Symposium Digest of Technical Papers | 2017

P-72: Invar Fe-Ni Alloy Metallization by Electroless Plating for TFTs

Takayo Yamamoto; Tomio Nagayama; Toshihiro Nakamura


SID Symposium Digest of Technical Papers | 2017

37-3: Low Thermal Expansion and Fine-Pitch Metal Masks Fabricated via Invar Fe-Ni Alloy Electroforming for Large Fine-Pitch OLED Displays

Tomio Nagayama; Takayo Yamamoto; Toshihiro Nakamura


PRiME 2016/230th ECS Meeting (October 2-7, 2016) | 2017

The Electroless Deposition of Fe-Ni Alloy Thin Films for Power Semiconductor Package

Takayo Yamamoto; Tomio Nagayama; Toshihiro Nakamura


PRiME 2016/230th ECS Meeting (October 2-7, 2016) | 2017

Corrosion Resistance Properties of Cu-Sn Electrodeposited from a Cyanide-Free Bath

Toshihiro Nakamura; Yoshiki Konno; Takayo Yamamoto; Tomio Nagayama

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Tomio Nagayama

Industrial Research Institute

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Yasushi Mizutani

Industrial Research Institute

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Tomio Nagayama

Industrial Research Institute

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Yutaka Fujiwara

Nara Institute of Science and Technology

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