Kazutoshi Nakajima

Title: Kazutoshi Nakajima: Innovator in Photodetection Technology

Introduction

Kazutoshi Nakajima is a prominent inventor based in Hamamatsu, Japan. He has made significant contributions to the field of photodetection technology, holding a total of 17 patents. His work focuses on innovative designs that enhance the efficiency and functionality of photodetection elements.

Latest Patents

Among his latest patents is a photodetection element featuring a periodic nano-concave/convex structure. This design includes an incidence surface for light on the back surface of a semiconductor layer. The periodic nano-concave/convex structure consists of convex and concave portions that create longitudinal and transverse resonators for light. This structure converts light into surface plasmons, with a metal film covering it. The arrangement of the convex portions is meticulously designed to ensure that the resonance wavelengths of both resonators match. Another notable patent is a photodetection element that incorporates a semiconductor layer with a periodic concave/convex structure. This structure also converts light into surface plasmons and includes a Schottky junction portion with a metal film.

Career Highlights

Kazutoshi Nakajima has worked with notable companies such as Hamamatsu Photonics K.K. and Hamamatsu Photonics Kabushiki Kaisha. His experience in these organizations has allowed him to develop and refine his innovative ideas in photodetection technology.

Collaborations

Throughout his career, Nakajima has collaborated with esteemed colleagues, including Toru Hirohata and Takashi Iida. These partnerships have contributed to the advancement of his research and the successful development of his patents.

Conclusion

Kazutoshi Nakajima's work in photodetection technology exemplifies innovation and dedication. His numerous patents reflect his commitment to advancing the field and improving the efficiency of photodetection elements.