Company Filing History:
Years Active: 2001-2004
Title: Youji Takeuchi: Innovator in Ball-Point Pen Technology
Introduction
Youji Takeuchi is a prominent inventor based in Yokohama, Japan. He has made significant contributions to the field of writing instruments, particularly in the development of ball-point pen technology. With a total of 5 patents to his name, Takeuchi's innovations have enhanced the functionality and user experience of ball-point pens.
Latest Patents
Takeuchi's latest patents focus on improving the ink formulation and performance of ball-point pens. One of his notable inventions involves an ink designed to have an ink-consumption value per unit area of 0.64 to 1.6 mg/cm. This ink is formulated to maintain a surface tension in the range of 16 to 32 mN/m, which minimizes issues such as blotting and line splitting. Additionally, the ink dries quickly on paper while ensuring that the pen tip remains non-drying, providing a smooth writing experience. Another patent addresses the water content and composition of the ink, optimizing it for both quick-drying properties and a pleasant writing feel.
Career Highlights
Youji Takeuchi is associated with Mitsubishi Pencil Kabushiki Kaisha, a company known for its high-quality writing instruments. His work has significantly influenced the design and functionality of ball-point pens, making them more reliable and user-friendly.
Collaborations
Takeuchi has collaborated with notable colleagues such as Norio Ogura and Kiyoshi Iwamoto. Their combined expertise has contributed to the advancement of writing technology and the development of innovative products.
Conclusion
Youji Takeuchi's contributions to the field of ball-point pen technology exemplify his dedication to innovation. His patents reflect a commitment to enhancing the writing experience for users around the world.