Koichi Tsunemi

Title: Koichi Tsunemi: Innovator in Electrophotographic Technology

Introduction

Koichi Tsunemi is a notable inventor based in Suwon-si, South Korea. He has made significant contributions to the field of electrophotographic technology, particularly in the development of innovative apparatuses and methods for toner application. With a total of 2 patents to his name, Tsunemi continues to push the boundaries of imaging technology.

Latest Patents

Tsunemi's latest patents include a developing apparatus using non-magnetic mono-component toner and a method of adding toner to the same. This developing apparatus features an image receptor and a developing unit equipped with a developing roller that faces the image receptor. The design allows for new toner to be added to the developing unit as existing toner is consumed. Notably, at least one of the cores or external additives of the added toner differs from that of the existing toner. The charge amounts of the two toners are carefully regulated to ensure optimal performance.

Another significant patent involves an electrophotographic image forming apparatus that utilizes a developing roller for a developing unit with non-magnetic mono-component toner. This apparatus includes an image receptor where an electrostatic latent image is formed. The developing unit supplies toner to develop this image, and a trail-type regulating blade is installed to create a uniform toner layer on the developing roller. The design ensures that the rate of toner particles with a diameter of not more than half of the median value of a volume-diameter distribution does not exceed 15% in a number-diameter distribution.

Career Highlights

Koichi Tsunemi is currently employed at Samsung Electronics Co., Ltd., where he continues to innovate and develop advanced imaging technologies. His work has significantly impacted the efficiency and effectiveness of electrophotographic systems.

Collaborations

Throughout his career, Tsunemi has collaborated with talented individuals such as Jun-ho Kim and Sang-woo Kim. These collaborations have fostered a creative environment that has led to the development of groundbreaking technologies in the field.

Conclusion

Koichi Tsunemi is a prominent figure in the realm of electrophotographic technology, with a focus on enhancing toner application methods. His innovative patents and contributions to Samsung Electronics Co., Ltd. highlight his commitment to advancing imaging technology.