This inventor holds 7 USPTO granted patents and 1 published patent application. Top assignees: Sumitomo Riko Company Limited, Tokai Rubber Industries, Ltd.. Active years: 2008-2024.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Komaki, JP (2008 - 2018)
- Aichi, JP (2016 - 2024)
Company Filing History:

Years Active: 2008-2024
Title: Masanori Ishida: Innovator in Electrophotographic Technology
Introduction
Masanori Ishida is a prominent inventor based in Komaki, Japan, known for his significant contributions to electrophotographic technology. With a total of seven patents to his name, Ishida has made remarkable advancements in the field, particularly in the design and functionality of charging rolls and cleaning blades used in electrophotographic equipment.
Latest Patents
Ishida's latest patents include a charging roll for electrophotographic apparatus. This innovative charging roll features grooves that regularly define spirals on an elastic body layer, with specific dimensions for groove width and depth. The design ensures an optimal area ratio between the groove's bottom surface and the plane part, enhancing its performance. Additionally, the surface layer incorporates a binder polymer and roughness forming particles, which are strategically arranged to improve surface roughness.
Another notable patent is the cleaning blade for electrophotographic equipment. This cleaning blade is engineered to achieve both high hardness and low warping, providing excellent toner scraping properties. The blade comprises a cured material of a urethane composition, with precise ratios of isocyanate, crosslinkers, and triols, ensuring durability and efficiency in cleaning.
Career Highlights
Throughout his career, Ishida has worked with reputable companies such as Sumitomo Riko Company Limited and Tokai Rubber Industries, Ltd. His experience in these organizations has allowed him to refine his skills and contribute to the development of cutting-edge technologies in the electrophotographic sector.
Collaborations
Ishida has collaborated with notable coworkers, including Toshihiko Arata and Yosuke Hayashi. These partnerships have fostered innovation and creativity in their projects, leading to advancements in their respective fields.
Conclusion
Masanori Ishida's contributions to electrophotographic technology through his patents and career achievements highlight his role as a key innovator in the industry. His work continues to influence the development of efficient and effective electrophotographic equipment.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile