This inventor holds 3 USPTO granted patents. Top assignee: Mita Industrial Co., Ltd.. Active years: 1992-1994.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Higashi-osaka, JP (1992 - 1993)
- Higashi, JP (1994)
Company Filing History:
Years Active: 1992-1994
Title: Kazuhiko Yamamura: Innovator in Magnetic Developer Technology
Introduction
Kazuhiko Yamamura is a notable inventor based in Higashiosaka, Japan. He has made significant contributions to the field of magnetic developer technology, holding a total of 3 patents. His work focuses on improving the quality and efficiency of developing processes in electronic reproduction.
Latest Patents
Yamamura's latest patents include innovative processes and materials for developing images. One of his patents describes a magnetic brush developing process that utilizes a two-component type developer. This developer is designed to be supplied to an area where a bias voltage of at least 250 V is applied. By adjusting the particle size distribution of carrier particles, the occurrence of the carrier dragging phenomenon can be prevented. The specific adjustments ensure that the content of carrier particles smaller than 250 mesh is less than 8% by weight, with the weight average particle size diameter D.sub.50 ranging from 80 to 120 µm.
Another significant patent involves a magnetic carrier for electronic reproduction that is coated with a nitrogen-containing silicone resin. This two-component type developer comprises a toner with low electroconductivity, allowing for the formation of high-density images. The developer maintains the charge quantity of the toner within an appropriate range, ensuring high image quality even under ordinary conditions.
Career Highlights
Kazuhiko Yamamura is currently employed at Mita Industrial Co., Ltd., where he continues to innovate in the field of developing technologies. His work has been instrumental in advancing the capabilities of magnetic developers, contributing to the overall improvement of image reproduction quality.
Collaborations
Yamamura has collaborated with notable coworkers, including Kyouya Taguchi and Takatomo Fukumoto. Their combined expertise has fostered a productive environment for innovation and development within their projects.
Conclusion
Kazuhiko Yamamura's contributions to magnetic developer technology highlight his role as a key innovator in the field. His patents reflect a commitment to enhancing image quality and efficiency in electronic reproduction processes.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile