Location History:
- Osaka, JP (2000 - 2001)
- Osaku-fu, JP (2002)
Company Filing History:
Years Active: 2000-2002
Title: Tadaaki Ito: Innovator in Ballpoint Pen Technology
Introduction
Tadaaki Ito is a notable inventor based in Osaku-fu, Japan. He has made significant contributions to the field of writing instruments, particularly in the development of ballpoint pen technology. With a total of 3 patents to his name, Ito's innovations have enhanced the functionality and performance of ballpoint pens.
Latest Patents
One of Tadaaki Ito's latest patents is an aqueous ballpoint ink composition. This invention provides an aqueous ink composition for ballpoint pens that includes titanium oxide as a white pigment, a viscosity modifier, and flat-shaped resin particles. The viscosity of this ink composition ranges from 100 cps to 20,000 cps at 20°C. The average particle diameter of the flat-shaped resin particles is between 0.05 µm to 10 µm, with a content of 1% to 35% by weight in relation to the total amount of the aqueous ink composition. The titanium oxide content is between 5% to 55% by weight, while the viscosity modifier, a polysaccharide, is present at 0.1% to 2% by weight.
Another significant patent by Ito is for a ball for a ballpoint pen. This ball is composed of a sintered material created by sintering hard particles, which have an average inter-particle diameter of no greater than 0.2 µm. The design minimizes the exposure of minute fragments from the hard particles, preventing abrasion of the pen tip body and ensuring the ball does not sink into the pen tip during use.
Career Highlights
Tadaaki Ito is currently associated with Sakura Color Products Corporation, a company known for its innovative writing instruments and art supplies. His work has contributed to the advancement of products that are widely used in both educational and professional settings.
Collaborations
Throughout his career, Tadaaki Ito has collaborated with talented individuals such as Yasunori Nakatani and Atsushi Ito. These collaborations have fostered a creative environment that encourages innovation and the development of new technologies in the writing instrument industry.
Conclusion
Tadaaki Ito's contributions to the field of ballpoint pen technology demonstrate his commitment to innovation and quality. His patents reflect a deep understanding of materials and design, which have significantly improved the user experience