Company Filing History:
Years Active: 1995-2002
Title: Masahiko Tonogaki: Innovator in Electrophotography and Ink Jet Technology
Introduction
Masahiko Tonogaki is a prominent inventor based in Tokyo, Japan, known for his significant contributions to the fields of electrophotography and ink jet technology. With a total of 12 patents to his name, Tonogaki has made remarkable advancements that enhance the performance and durability of various imaging technologies.
Latest Patents
One of Tonogaki's latest patents is a light receiving member for electrophotography. This invention aims to maintain excellent electrical, optical, and photoconductive characteristics while significantly improving durability under adverse environments. The light receiving member comprises a supporting member and a light receiving layer, which includes a photoconductive layer made from a non-single-crystal material containing silicon atoms, along with a surface layer made from an amorphous material containing silicon and carbon atoms. Notably, the carbon atoms are at least diamond-bonded and graphite-bonded, with 2% to 30% of the carbon atoms being graphite-bonded.
Another significant patent involves a liquid jet head, head cartridge, and liquid jet apparatus. This ink jet head features multiple electrothermal transducer elements arranged in a way that the ratio of the areas of two transducer elements is smaller than the ratio of the amounts of ink ejected by them. This design allows for stable ink ejection and achieves a high gradational effect with improved energy efficiency.
Career Highlights
Tonogaki is currently associated with Canon Kabushiki Kaisha, a leading company in imaging and printing technologies. His work at Canon has allowed him to push the boundaries of innovation in the industry, contributing to the development of advanced imaging solutions.
Collaborations
Throughout his career, Tonogaki has collaborated with notable colleagues, including Masafumi Sano and Tatsuyuki Aoike. These collaborations have fostered a creative environment that has led to the development of groundbreaking technologies.
Conclusion
Masahiko Tonogaki's innovative work in electrophotography and ink jet technology has made a significant impact on the industry. His patents reflect a commitment to enhancing the performance and durability of imaging technologies, solidifying his reputation as a leading inventor in his field.