Kabushiki Kaisha Toyota Chuo Kenkyusho

Takuro Matsunaga

Kenzo Fukumori

Hideaki Matsuoka

Kazuhiko Umemoto

Shuxin Dong

Hiroaki Kadoura

A metal-resin composite material including an aluminum substrate having an aluminum oxide coating and a resin bonded to the aluminum substrate through the aluminum oxide coating, wherein the aluminum oxide coating has a porous surface layer in which columns with an average height of 10 to 100 nm are arranged in a dispersed state, an average value of sums of cross-sectional areas of the columns in randomly sampled 400 nm square visual fields of the porous surface layer is 8000 to 128000 nm, an average value of sums of circumferential lengths of cross-sections of the columns in randomly sampled 400 nm square visual fields of the porous surface layer is 1000 to 27000 nm, and an average value of numbers of the columns in randomly sampled 400 nm square visual fields of the porous surface layer is 10 to 430.

Growing community of inventors

Nagakute, Japan

Takuro Matsunaga