Ken Sasakura

Title: Ken Sasakura: Innovator in Semiconductor Technology

Introduction

Ken Sasakura is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 4 patents. His work focuses on developing advanced light-emitting devices that enhance the efficiency and quality of light emission.

Latest Patents

One of Ken Sasakura's latest patents is for a semiconductor light-emitting device that features a narrow radiation spectrum. This innovation allows radiation to occur when current is injected into an active layer from electrodes. The design includes a pair of clad layers that sandwich the active layer, with the clad layer having a band gap wider than that of the active layer. Additionally, an optical absorption layer is positioned outside at least one clad layer, which has a band gap wider than the active layer and narrower than that of the clad layer. This configuration effectively narrows the spectrum of radiated light.

Another notable patent involves a semiconductor light-emitting device that incorporates a quantum well layer sandwiched between carrier confinement layers. The principal surface of the substrate is made from a group III-V compound semiconductor material, specifically about a (100) plane. The light-emitting lamination structure includes a quantum well layer that is surrounded by a pair of carrier confinement layers made from a semiconductor material with a wider band gap. This arrangement ensures that light emission recombination of electrons and holes occurs in the quantum well layer rather than in the carrier confinement layers.

Career Highlights

Ken Sasakura is currently employed at Stanley Electric Co., Ltd., where he continues to innovate in the field of semiconductor devices. His work has been instrumental in advancing the technology used in various applications, particularly in lighting solutions.

Collaborations

Throughout his career, Ken has collaborated with notable colleagues, including Tsuyoshi Maruyama and Keizo Kawaguchi. These partnerships have contributed to the development of cutting-edge technologies in the semiconductor industry.

Conclusion

Ken Sasakura's contributions to semiconductor technology through his innovative patents have significantly impacted the field. His work continues to pave the way for advancements in light-emitting devices, showcasing his dedication to innovation and excellence.