Tooru Shimizu

Title: Tooru Shimizu: Innovator in Linear Image Sensor Technology

Introduction

Tooru Shimizu is a prominent inventor based in Chiba, Japan. He has made significant contributions to the field of imaging technology, particularly through his work on linear image sensors. With a total of 3 patents to his name, Shimizu continues to push the boundaries of innovation in this area.

Latest Patents

Shimizu's latest patents include a linear image sensor that utilizes phototransistors as light-receiving elements. This invention has improved after-image characteristics and reduced production costs by incorporating a light-receiving MOS diode near each photosensor. The design allows the MOS diode to be in an inversion state during photo-charge accumulation, which helps in minimizing after-images caused by residual charge. Another notable patent is the linear image sensor integrated circuit, which features a semiconductor substrate with a pixel region and a scribe region. This circuit includes a diffusion layer in the pixel region and a passivation film that protects the PN junction, enhancing the sensor's performance.

Career Highlights

Tooru Shimizu is currently employed at Seiko Instruments Inc., where he continues to develop innovative imaging solutions. His work has been instrumental in advancing the capabilities of linear image sensors, making them more efficient and effective for various applications.

Collaborations

Shimizu has collaborated with notable colleagues such as Masahiro Yokomichi and Yukito Kawahara. Their combined expertise has contributed to the successful development of cutting-edge technologies in the field of imaging.

Conclusion

Tooru Shimizu stands out as a key figure in the innovation of linear image sensor technology. His patents reflect a commitment to enhancing imaging capabilities and reducing production costs. Through his work at Seiko Instruments Inc., he continues to influence the future of imaging technology.