This inventor holds 2 USPTO granted patents. Top assignee: Mita Industrial Co., Ltd.. Active years: 1993.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 1993
Title: The Innovative Contributions of Shigeki Yamada
Introduction
Shigeki Yamada, an accomplished inventor based in Nara, Japan, has made significant contributions to the field of electrophotography. With two patents to his name, his innovations focus on improving toners and developers used in printing technologies.
Latest Patents
Yamada's latest patents include a unique formulation for electrophotographic toner. This invention features a fixing resin based on a styrene-acrylic copolymer, which has specifically determined styrene content and molecular weight distribution. This formulation enhances bending resistance while maintaining excellent low-temperature fixing properties, off-set resistance, and heat resistance.
Additionally, he developed a one-component magnetic developer for electrophotography. This inventive product consists of magnetic toner particles combined with fine particulate additives such as hydrophobic silica, hydrophilic silica, and alumina. Notably, the magnetic toner particles exhibit a sphericity degree of 70 to 90% and a specific surface area ranging from 1.4 to 2.0 m²/g, thereby optimizing performance in printing applications.
Career Highlights
Yamada is currently employed at Mita Industrial Co., Ltd. His work at this company allows him to focus on creating innovative solutions that enhance the electrophotography process, ultimately leading to more efficient printing technologies.
Collaborations
Throughout his career, Shigeki Yamada has collaborated with several notable professionals, including Hidenori Asada and Takeshi Arakawa. These partnerships have likely contributed to the successful development of his patents and the advancement of technology in the industry.
Conclusion
Shigeki Yamada's contributions to the field of electrophotography through his patents highlight his role as a key inventor in this technical domain. His innovative approaches in toner and developer formulations will continue to influence the efficiency and effectiveness of printing technologies.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile