Yasumasa Inomoto

Title: Yasumasa Inomoto: Innovator in Semiconductor Technology

Introduction

Yasumasa Inomoto is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 9 patents. His work focuses on advancing the capabilities of photodetectors and semiconductor lasers.

Latest Patents

Inomoto's latest patents include a high-speed semiconductor photodetector. This invention features a first semiconductor mesa structure with a photoactive region and a second semiconductor mesa structure, both formed side by side on a semi-insulating substrate. These structures are surrounded by a photoresist layer and covered with a metal layer. Conductive material is deposited through a photoresist mask to create metallized regions, which are then used to pattern the underlying metal layer into corresponding regions. This innovative design allows for the formation of laminated metal structures that serve as positive and negative electrodes.

Another notable patent is the modulator-integrated semiconductor laser. This invention involves fabricating a semiconductor laser on a substrate that includes both a laser section and a modulator section. A light waveguide with an active layer extends across both sections, and the embedding structure confines electrons between high resistance regions. This design enhances the performance of the laser while ensuring efficient modulation.

Career Highlights

Yasumasa Inomoto is currently employed at NEC Corporation, where he continues to push the boundaries of semiconductor technology. His work has been instrumental in developing advanced devices that are crucial for various applications in electronics and telecommunications.

Collaborations

Inomoto has collaborated with notable colleagues, including Yasutaka Sakata and Tomoji Terakado. These partnerships have fostered innovation and contributed to the successful development of his patented technologies.

Conclusion

Yasumasa Inomoto's contributions to semiconductor technology through his patents and collaborations highlight his role as a leading inventor in the field. His innovative designs continue to influence advancements in electronic devices and systems.