A small business owner in Japan came up with a trick: to pack less dry ink so that the ink in the refill can only write more than 10,000 characters before it is used up, so that the problem of oil leakage in the ballpoint pen refill is solved. Therefore, he applied for a patent to produce a short ballpoint pen core and ballpoint pen, which was welcomed by customers. This method of solving problems seems to be cutting corners, but in essence it is an innovation, an ideological and methodological innovation to solve problems that people could not solve at the time.
Ballpoint pens were more expensive than fountain pens in the 1950s, and they were reluctant to throw them away after they were used up. They can be refilled and used in special pen shops. It is said that Bilo, a Hungarian, is a proofreader in a printing factory. Since the printed proof sample contains a lot of moisture, it can be changed with a pen, and the characters are easily leaked and blurred. So he used a steel ball to cover a thin ink tube to write. , It is not easy to produce the previous problems. Later, Billow provided his invention to the Royal Air Force, and a British aircraft manufacturer produced the first batch of ballpoint pens. Until World War II, the Americans adopted Bilo's invention. In 1916, a new ballpoint pen designed by German Lisboa was not promoted. Until the outbreak of the Second World War, the U.S. Military Industry Department proposed to create a pen that was suitable for writing at high altitude, did not leak water, was not affected by heat and cold, could store large amounts of ink, and did not need to fill it frequently, and gave it a reward. In 1944, Chicago businessman Reynolds saw this as an excellent opportunity to make a fortune. Because of his active mind, he heavily invited people to improve Lisboa's pen and achieved success in about a year. At that time, the United States lost the atomic bomb in Japan. He made a big advertisement and named his pen and the atomic bomb together, named the ball pen, which soon became popular all over the world.
