Location History:
- Mishima, JP (2017)
- Numazu, JP (2020 - 2022)
- Shizuoka, JP (2023)
Company Filing History:
Years Active: 2017-2025
Title: Innovations of Hirofumi Kyuushima
Introduction
Hirofumi Kyuushima is a notable inventor based in Numazu, Japan. He has made significant contributions to the field of toner technology, holding a total of eight patents. His work primarily focuses on enhancing the performance and quality of toner products.
Latest Patents
Among his latest patents, Kyuushima has developed a toner that comprises a toner particle with a binder resin. This toner particle also includes a compound represented by a specific formula and a pigment featuring a quinacridone structure. Another innovative patent involves a toner that consists of a toner particle and a silica particle on its surface. In this invention, areas formed by a polyester resin and a styrene-acrylic resin are present on the toner particle's surface. The silica particle in this patent has a number-average particle diameter ranging from 15 to 60 nm, an average pore diameter of 5.0 to 20.0 nm, and a total pore volume of 0.20 to 1.50 cm/g.
Career Highlights
Kyuushima is associated with Canon Kabushiki Kaisha, a leading company in imaging and printing technologies. His work at Canon has allowed him to push the boundaries of toner innovation, contributing to the company's reputation for high-quality products.
Collaborations
Throughout his career, Kyuushima has collaborated with talented individuals such as Yoshiaki Shiotari and Naoya Isono. These collaborations have fostered a creative environment that has led to the development of advanced toner technologies.
Conclusion
Hirofumi Kyuushima's contributions to toner technology through his patents and collaborations highlight his innovative spirit and dedication to improving product performance. His work continues to influence the industry and drive advancements in imaging technology.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.