Location History:
- Nara, JA (1976)
- Nara, JP (1987)
Company Filing History:
Years Active: 1976-1987
Title: **The Innovative Journey of Koichi Irihara**
Introduction
Koichi Irihara, an esteemed inventor based in Nara, Japan, has made significant contributions to the field of electrophotography. With two notable patents to his name, Irihara's inventive spirit and technical prowess have been instrumental in advancing printing technologies.
Latest Patents
Irihara's latest patents showcase his profound knowledge and innovative methodologies. The first patent, titled "Method of Removing a Charge from an Electrophotographic Photoreceptor," details a novel approach to eliminating charges from photoreceptors that includes insulation layers. By utilizing light with a peak wavelength of at least 6,000 angstroms in conjunction with a corona discharge, this method effectively enhances the efficiency of the electrophotographic process. To achieve this, a specific filter is employed to generate the required light spectrum.
The second patent, "Electrophotographical Reproduction of a Multicolor Image," outlines an advanced multicolor electrophotography apparatus and method. In this system, a photoconductive copy sheet, uniformly charged, is exposed to an original image through a light filter tailored for color recording. Each color is developed using different colored toners in a stepwise process, enabling the production of a composite color image through the precise coordination of a vertically moving sheet carriage and a horizontally moving developer bed.
Career Highlights
Irihara's career has been defined by his affiliation with Sharp Corporation, a leading company in electronic technologies. His achievements in the realm of electrophotography have not only propelled his career forward but have also contributed to the company's reputation for innovative printing solutions.
Collaborations
During his career, Irihara has collaborated with several notable individuals, including Shizuo Miyata and Yoshihide Nakao. These collaborations have enriched his work and led to the development of groundbreaking inventions that continue to influence the industry.
Conclusion
Koichi Irihara's innovative contributions to electrophotography demonstrate his commitment to advancing technology in the printing field. With two patents that exemplify ingenuity and technical skill, he remains a significant figure in innovation within Sharp Corporation and beyond. His work not only enhances current technologies but also inspires future developments in the industry.