Yasuji Kobashi

Title: Yasuji Kobashi: Innovator in Light Emitting Diodes

Introduction

Yasuji Kobashi is a notable inventor based in Tsuchiura, Japan. He has made significant contributions to the field of light-emitting diodes (LEDs) and holds 2 patents related to his innovative work. His inventions focus on improving the efficiency and longevity of LED technology.

Latest Patents

Kobashi's latest patents include a light-emitting diode with tilted plane orientation. This invention involves an epitaxial wafer where a gallium phosphide or a gallium phosphide arsenide mixed crystal epitaxial layer is grown on a III-V family compound single crystal substrate. The substrate's surface has a plane tilted by 5 to 16 degrees from a (100) plane, which enhances light-emitting output and ensures a longer service life. Another significant patent is for an epitaxial wafer comprising a single crystalline substrate, a p-type gallium aluminum arsenide mixed crystalline layer, and an n-type gallium aluminum arsenide mixed crystalline layer. This design features an indirect transition type band structure, which is crucial for the performance of the device.

Career Highlights

Throughout his career, Yasuji Kobashi has worked with prominent companies such as Mitsubishi Monsanto Chemical Co., Ltd. and Mitsubishi Kasei Corporation. His experience in these organizations has allowed him to develop and refine his innovative ideas in the field of semiconductor technology.

Collaborations

Kobashi has collaborated with notable coworkers, including Tadashige Sato and Hitora Takahashi. Their combined expertise has contributed to advancements in LED technology and related fields.

Conclusion

Yasuji Kobashi's contributions to the field of light-emitting diodes have made a significant impact on technology. His innovative patents and collaborations highlight his dedication to advancing semiconductor technology.