Company Filing History:
3 out of 1,641 
2 out of 42,496 
Years Active: 1986-1990
Title: Ikutoshi Shibuya: Innovator in Electrostatic Imaging Technologies
Introduction
Ikutoshi Shibuya is a notable inventor based in Hitachi, Japan. He has made significant contributions to the field of electrostatic imaging technologies. With a total of 3 patents to his name, Shibuya's work has had a lasting impact on the industry.
Latest Patents
One of his latest patents is for a toner designed for developing electrostatic images. This toner comprises a vinyl polymer with a hydroxyl number ranging from 50 to 350 and a glass transition point between 35°C and 100°C. It is obtained from one or more monomers that have a secondary hydroxyl group, and if necessary, one or more vinyl monomers that are copolymerizable with the vinyl monomer. This toner exhibits excellent resistance to adhesion to non-rigid polyvinyl chloride and resistance to blocking under high humidity. Another significant patent involves an electrophotographic plate that includes a charge generating layer. This plate comprises an electroconductive layer, a charge generating layer, and a charge transport layer, featuring a silane coupling agent either in the charge generating layer, the charge transport layer, or at the interface of both layers. This design results in small dark decay, minimal light fatigue, and high sensitivity.
Career Highlights
Ikutoshi Shibuya has worked with prominent companies such as Hitachi Chemical Company, Ltd. and Hitachi, Ltd. His experience in these organizations has allowed him to develop and refine his innovative technologies.
Collaborations
Throughout his career, Shibuya has collaborated with talented individuals, including Shigeo Tachiki and Makoto Fujikura. These partnerships have contributed to the advancement of his projects and patents.
Conclusion
Ikutoshi Shibuya's contributions to electrostatic imaging technologies highlight his innovative spirit and dedication to advancing the field. His patents reflect a commitment to improving the performance and reliability of imaging materials.