Yausunobu Matsuoka

Title: Yausunobu Matsuoka and Superlattice Avalanche Photodiode Innovation.

Introduction

Yausunobu Matsuoka is an inventor associated with Hachioji, Japan, and Hitachi, Ltd. His recorded patent work concerns the design of a superlattice avalanche photodiode.

Latest Patents

Matsuoka is associated with 1 patent, titled “Superlattice Avalanche Photodiode (APD).” The invention describes an APD with a light-absorption layer that generates carriers by absorbing light, a multiplication layer that multiplies those carriers, and a pair of electrodes that drive them. The multiplication layer uses alternating superlattice well and barrier layers: the well layer is less than 10 nm thick, while the barrier layer is more than 10 nm and less than 20 nm thick.

Career Highlights

Matsuoka’s listed patent reflects work on semiconductor photodetector structures and the engineering of carrier multiplication. The available information identifies Hitachi, Ltd. as his company affiliation.

Collaborations

Hitoshi Nakamura and Shoichi Hanatani are listed as Matsuoka’s coworkers. The provided information does not specify their roles in the patent.

Conclusion

Yausunobu Matsuoka’s recorded invention focuses on a carefully layered superlattice structure for an avalanche photodiode, connecting his patent work with Hitachi, Ltd. and semiconductor device innovation.