Tomoji Ishii

Title: Tomoji Ishii: Innovator in Solid State Imaging Technology

Introduction

Tomoji Ishii is a notable inventor based in Nagano, Japan. He has made significant contributions to the field of imaging technology, particularly through his innovative work on solid state image pick-up devices. His expertise and inventions have had a lasting impact on the industry.

Latest Patents

Ishii holds a patent for a solid state image pick-up device with a shutter function. This device includes a number of charge coupled devices of vertical overflow domain type. The design features a light receiving portion that comprises a p.sup.- epitaxial layer arranged on a main surface of an n.sup.+ substrate. Additionally, an n.sup.+ diffusion surface region is provided in the surface of the p.sup.- layer. A p.sup.+ control gate is formed in the epitaxial layer adjacent to the light receiving portion, which controls the potential barrier between the n.sup.+ diffusion surface region and the p.sup.- epitaxial layer. This innovative design allows for complete discharge of charge stored in the light receiving portion during the shutter close period.

Career Highlights

Ishii is associated with Olympus Optical Company, Ltd., where he has contributed to advancements in imaging technology. His work has been instrumental in enhancing the performance and functionality of imaging devices.

Collaborations

Throughout his career, Ishii has collaborated with notable colleagues such as Atsushi Yusa and Toshimasa Akagi. These collaborations have fostered innovation and development in the field of imaging technology.

Conclusion

Tomoji Ishii's contributions to solid state imaging technology exemplify his innovative spirit and dedication to advancing the field. His patent for a solid state image pick-up device with a shutter function showcases his technical expertise and commitment to improving imaging solutions.