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Dive into the research topics where Naotaka Yamamoto is active.

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Featured researches published by Naotaka Yamamoto.


Jsae Review | 1996

A study of recycling technology for paint-coated plastic automotive bumper

Noriko Ohori; Toshimitsu Suyama; Naotaka Yamamoto; Nobuo Yagi

Abstract Our objective was to eliminate the harmful effect of paint films in recycled material. Our study focused on the molecular bonding in paint resin, and reached the following conclusions: 1. (1) The use of a modifier allows the ether linkage in the paint film to be cleaved and its molecular structure changed. This resulted in improved compatibility between the paint and the material, rendering the paint film chips harmless. 2. (2) Bumpers molded using modified recycled material meet requirements for mechanical properties, moldability, paintability and surface quality. 3. (3) A continuous process where modification and pelletization are done simulataneously in a twin-screw extruder was achieved. This reduces the number of process steps and processing time, while providing improved productivity and economies.


Jsae Review | 1995

Development of metal plating on FRP exterior body panels

Naotaka Yamamoto; Nobuo Yagi

Abstract Application of Sheet Molding Compound (SMC) to exterior body panels of automobiles is intended to meet the demand for weight reduction. There has, on the other hand, always been a strong demand for metal plating exterior body panels, which is especially true for the domestic truck market. However, metal plating on SMC with good adhesion and surface quality has not been possible with conventional technology. In order to meet these needs, the technique of metal plating on SMC by changing in In-Mold Coating was developed.


Advanced Composite Materials | 1996

Development of metal plating on SMC

Naotaka Yamamoto; Muneyoshi Hasegawa; Nobuo Yagi

Application of Sheet Molding Compound (SMC) to exterior body panels of automobiles is intended to meet weight reduction demands. There has always been a strong demand for metal plating exterior body panels, which is especially true for the domestic truck market. However, metal plating on SMC with excellent adhesion and surface quality has never been attained with the technology heretofore in use. In order to meet such needs, the metal plating technique on SMC by changing the components in in-mold coating has been developed.


Archive | 2000

Heat insulating wall member, and method of manufacturing the same

Naotaka Yamamoto; Seiichiro Kitou


Archive | 1994

Method for producing molded product

Naotaka Yamamoto; Nobuo Yagi; Satoshi Fujii; Kenji Yonemochi; Mitsutoshi Myokei


Archive | 2001

ACOUSTIC MATERIAL FOR VEHICLE AND METHOD OF MANUFACTURING THE SAME

Yasunori Fukushima; Shinobu Fushiki; Kazuhisa Sugiyama; Nobuo Yagi; Naotaka Yamamoto; 忍 伏木; 信雄 八木; 尚孝 山本; 和央 杉山; 康典 福島


Archive | 2000

Heat insulating wall member and manufacture thereof

Seiichiro Kito; Naotaka Yamamoto; 尚孝 山本; 誠一路 木藤


Archive | 1994

Method for recycling painted plastic materials

Naotaka Yamamoto; Noriko Oohori


Archive | 1990

METHOD FOR MOLDING OF HOLLOW RESIN MOLDED ITEM

Naoko Inoue; Junichi Kasai; Masayuki Munemura; Eiichi Nakagawa; Takanori Naya; Yosuke Tanaka; Nobuo Yagi; Naotaka Yamamoto; Norio Yamashita


Archive | 1999

Heat insulating wall member and manufacture of the same

Seiichiro Kito; Naotaka Yamamoto; 尚孝 山本; 誠一路 木藤

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Koichi Kimura

Sumitomo Metal Industries

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Nobukazu Suzuki

Sumitomo Metal Industries

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Satoshi Ikeda

Sumitomo Metal Industries

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