Location History:
- Ibaraki, JP (1993 - 1996)
- Osaka, JP (1996 - 1998)
Company Filing History:
Years Active: 1993-1998
Title: The Innovative Contributions of Seijiro Ishimaru
Introduction
Seijiro Ishimaru, an accomplished inventor hailing from Ibaraki, Japan, has made significant strides in the field of toner development for two-component type developers. With a total of nine patents to his name, his innovative efforts have played an essential role in enhancing the performance and efficiency of printing technologies.
Latest Patents
Among his latest patents, Ishimaru has introduced a toner composition that includes toner particles comprising a binder resin and magnetic powder. This unique invention focuses on two primary formulations: one utilizes a polymer with an anionic group and a wax grafted portion, while the other employs a mix of a similar polymer and a high molecular weight polymer. The magnetic powder, essential for the toner’s functionality, is judiciously incorporated, maintaining a specific ratio of 0.1 to 5 parts by weight per 100 parts by weight of the binder resin. These innovations are designed to enhance the performance of printers by improving the quality and reliability of the printed output.
Career Highlights
Throughout his career, Ishimaru has consistently displayed a commitment to innovation and quality. Working at Mita Industrial Co., Ltd., he has been at the forefront of advancements in the printing industry. His work not only contributes to the company’s success but also pushes the boundaries of what is achievable in toner development, setting a high standard for the industry.
Collaborations
In his innovative journey, Ishimaru has had the privilege of collaborating with esteemed colleagues such as Yoshitake Shimizu and Naruo Yabe. These partnerships have fostered a creative environment that fuels the pursuit of new ideas and technologies, further enhancing the impact of their collective work.
Conclusion
Seijiro Ishimaru stands as a significant figure in the world of inventions, particularly within the realm of toner technology for printing applications. His contributions, backed by a solid foundation of patents and collaborative efforts, reflect a commitment to innovation that continues to benefit the industry and inspire future generations of inventors.