This inventor holds 3 USPTO granted patents. Top assignee: Sakura Color Products Corporation. Active years: 1996-1998.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 1996-1998
Title: **Yoshiko Yamaoka: Innovator in Aqueous Ink Technology**
Introduction
Yoshiko Yamaoka, an accomplished inventor based in Osaka, Japan, has made significant contributions to the field of aqueous ink formulations. With a total of three patents to her name, Yamaoka's innovations focus on enhancing the performance of writing instruments, particularly ball-point pens.
Latest Patents
Yamaoka's most recent patent is an aqueous ink composition for ball-point pens. This invention comprises an aqueous ink mixture that includes a pigment or colored polymer emulsion, a dispersant, a water-soluble organic solvent, and water. One of the key features is a novel compound that enhances lubricity, ensuring smooth ball rotation during writing. The ink compositions she created are designed to be free of clogging at the pen tip, even after prolonged use, making them suitable for high-performance writing instruments. Her invention also corresponds to a method that minimizes ink leakage and writing defects, ensuring consistent writing quality.
Career Highlights
Yoshiko Yamaoka is currently employed at Sakura Color Products Corporation, where she continues to innovate in the development of aqueous inks and writing technologies. Her work has had a meaningful impact on improving the quality and reliability of ball-point pens, much to the benefit of consumers and industries alike.
Collaborations
In her innovative journey, Yamaoka has collaborated with esteemed colleagues, including Toshimitsu Kawasumi and Hiroshi Inoue. Together, they have contributed to advancements in aqueous ink technology and the overall enhancement of writing tools.
Conclusion
Yoshiko Yamaoka stands out as a pioneering inventor in the realm of aqueous ink compositions. Her patents not only showcase her expertise but also reflect a commitment to quality and innovation in everyday writing tools. Through her work at Sakura Color Products Corporation, she continues to inspire future advancements in writing technology, making a mark in the industry.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile