Location History:
- Higashiosaka, JP (2010)
- Osaka, JP (2016)
Company Filing History:
Years Active: 2010-2016
Title: The Innovative Contributions of Toshiharu Kataoka in Electrostatic Development Technologies
Introduction
Toshiharu Kataoka is a prominent inventor located in Osaka, Japan, known for his contributions to the field of electrostatic development technologies. With a total of two patents, Kataoka has made a significant impact through his innovative inventions, which enhance the quality and efficiency of image forming devices.
Latest Patents
Kataoka's latest patents include groundbreaking advancements in toner for electrostatic development and associated image forming methods. One notable patent details a toner for electrostatic development composed of toner base particles derived from a specific toner composition. This composition, which includes binder resin, coloring agents, and wax, undergoes melting, kneading, pulverization, and classification. The resulting toner boasts a volume median particle diameter (D50) ranging from 5.5 to 7.5 µm and a unique particle size distribution. Notably, it contains 15 to 55% of toner base particles measuring no more than 5 µm in diameter and less than 1.5% of particles exceeding 10 µm.
Another significant invention addresses the challenges faced in two-component developers utilized for printing. This two-component developer, incorporating both toner and carrier, effectively reduces the occurrence of hot offset, image density insufficiencies, image fogging, and toner scattering. Key to this invention is the composition of the carrier's coating layer, where the acrylic resin content ranges from 5 to 50% by weight. The dielectric loss (tan δ) is maintained between 4.0×10^-3 to 15.0×10^-3, allowing users to achieve images of high quality and sufficient density without encountering common issues.
Career Highlights
Toshiharu Kataoka works with Sharp Corporation, a well-respected entity in the electronics industry, where he continues to develop innovative solutions that push the limits of current technologies. His work focuses primarily on enhancing the performance of imaging systems, contributing to advancements in both quality and functionality.
Collaborations
Throughout his career, Kataoka has collaborated with notable coworkers such as Masahiro Sakai and Yasuo Imura. Together, they foster a creative environment that promotes innovation and problem-solving, leading to the successful development of their patented technologies.
Conclusion
In summary, Toshiharu Kataoka has made commendable contributions to the field of electrostatic development through his innovative patents. His ability to improve image quality and efficiency demonstrates his expertise as an inventor. The continuous evolution of his work at Sharp Corporation alongside esteemed colleagues underscores the significant impact of collaboration in achieving groundbreaking advancements in technology.