鉛芯筆的起源和歷史(Origins and History of the Mechanical Pencil)_中英雙語

1822起源英國

1822年，英國的Sampson Mordan為一款可以替換筆芯的鉛芯筆設計申請了專利，這標誌著鉛芯筆的現代化開始 。

1915日本創新

1915年，日本的早川金屬工業創辦人早川德次發明了現代鉛芯筆，並經過多次改良，推出了名為Ever-Ready Sharp Pencil的產品，這種鉛芯筆因其持久的尖端而受到廣泛歡迎 。

同時期美國貢獻

同時期，美國的Charles R. Keeran也在開發現代鉛芯筆，兩者的發明共同奠定了現代鉛芯筆的基礎。

1980 日本普及

1980年，日本的斑馬筆廠以超低價發售鉛芯筆，這使得鉛芯筆在市場上迅速普及，成為學生和專業人士的常用工具 。

如今

如今，鉛芯筆廣泛應用於工程製圖、設計、繪畫等領域，並且有多種不同的鉛芯可供選擇，滿足不同的書寫需求。

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Origins and History of the Mechanical Pencil

1822 - Origin in England

In 1822, Sampson Mordan from England patented a design for a mechanical pencil with replaceable leads, marking the beginning of the modernization of the mechanical pencil.

1915 - Innovation in Japan

In 1915, Tokiji Hayakawa, the founder of Hayakawa Metal Industry in Japan, invented the modern mechanical pencil and made several improvements, launching a product called the Ever-Ready Sharp Pencil. This mechanical pencil became widely popular due to its durable tip.

Concurrent Contributions in the USA

During the same period, Charles R. Keeran in the United States was also developing modern mechanical pencils. The inventions from both Mordan and Keeran laid the foundation for the modern mechanical pencil.

1980 - Popularization in Japan

In 1980, Zebra Corporation in Japan sold mechanical pencils at extremely low prices, leading to a rapid increase in their popularity in the market, making them common tools for students and professionals.

Today

Today, mechanical pencils are widely used in fields such as engineering drawing, design, and art, with a variety of lead types available to meet different writing needs.