Nobuyuki Hosoi

Title: Nobuyuki Hosoi: Innovator in Semiconductor Technology

Introduction

Nobuyuki Hosoi is a prominent inventor based in Ushiku, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 9 patents. His work focuses on developing advanced semiconductor optical devices and light-emitting devices, which have applications in various high-tech industries.

Latest Patents

One of Hosoi's latest patents is for a semiconductor optical device apparatus. This invention features a substrate with a compound semiconductor layer that includes an active layer. It also has a protection film with a stripe-shaped opening and a ridge type compound semiconductor layer. The design allows for a controlled width of the stripe-shaped opening, enabling the production of devices that operate with high output and have a small beam spot diameter.

Another notable patent is for a semiconductor light-emitting device. This device consists of a substrate, a first compound semiconductor layer with an active layer, and a second ridge type compound semiconductor layer. It includes a current blocking layer that enhances production yield and ensures high output and longevity when assembled in a junction-down configuration.

Career Highlights

Nobuyuki Hosoi has worked with leading companies in the chemical and semiconductor industries. He has been associated with Mitsubishi Chemical Corporation and Mitsubishi Gas Chemical Company, Inc. His experience in these organizations has contributed to his expertise in semiconductor technologies.

Collaborations

Throughout his career, Hosoi has collaborated with notable professionals in the field, including Kenji Shimoyama and Yoshihito Sato. These collaborations have further enriched his work and innovations in semiconductor technology.

Conclusion

Nobuyuki Hosoi is a distinguished inventor whose contributions to semiconductor technology have paved the way for advancements in optical and light-emitting devices. His innovative patents and collaborations reflect his commitment to enhancing the capabilities of semiconductor applications.