WINAX Corporation is a Japanese tile and plumbing manufacturer based in Tokoname, Aichi. It belongs to the Lixil Group.
WMurata Manufacturing Co., Ltd. is a Japanese manufacturer of electronic components, based in Nagaokakyo, Kyoto.
WThe NGK Spark Plug Co., Ltd. is a public company established in 1936 and based in Nagoya, Japan. NGK manufactures and sells spark plugs and related products for internal combustion engines, along with ceramics and applicable products.
WNGK Insulators, Ltd. is a Japanese ceramics company. It primarily produces insulators but also produces other products, especially ceramic products. NGK is headquartered in Tokyo and is listed on the Nikkei 225, which is an index of the Tokyo Stock Exchange. It is also listed in the Osaka Securities Exchange, the Nagoya Stock Exchange, and the Sapporo Securities Exchange all under listing code 5333. NGK stands for Nippon (Japan) Gaishi (insulator) Kaisha (company).
WNikko Company is a Japanese manufacturer of fine ceramics, known for its tableware products.
WNoritake Co., Limited , commonly known as "Noritake," is a tableware and technology company headquartered in Nagoya, Aichi Prefecture, Japan.
WToto Ltd. , stylized as TOTO, is the world's largest toilet manufacturer. It was founded in 1917, and is known for developing the Washlet and derivative products. The company is based in Kitakyushu, Japan, and owns production facilities in nine countries. The name "Toto" is an abbreviation of the two Japanese words forming its full name, Tōyō Tōki .