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| launch year = 1888 | company = Multiple brands | available = Worldwide mass-production | notes = Ubiquitous writing instrument }} A ballpoint pen, also known as a "biro"〔 and "ball pen", is a pen that dispenses ink over a metal ball at its point, i.e. over a "ball point". The metal commonly used is steel, brass, or tungsten carbide. It was conceived and developed as a cleaner and more reliable alternative to quill and fountain pens, and it is now the world's most-used writing instrument:〔 millions are manufactured and sold daily.〔 As a result, it has influenced art and graphic design and spawned an artwork genre. Pen manufacturers produce designer ballpoint pens for the high-end and collectors' markets. The Bic Cristal is a popular disposable type of ballpoint pen whose design is recognised by its place in the permanent collection of the Museum of Modern Art, New York.〔(Bic Cristal in MoMA collection )〕 ==History== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Ballpoint pen」の詳細全文を読む スポンサード リンク
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