Hiroaki Abe

Title: Hiroaki Abe: Semiconductor Laser and Optical Disc Innovations

Introduction

Hiroaki Abe is an inventor associated with Miyagi, Japan, and Sony Corporation. His work includes semiconductor light-emitting devices designed for optical disc applications. Abe is credited with 4 patents.

Latest Patents

One of Abe’s listed patents, “Semiconductor Light Emitting Device and Optical Disc Apparatus Using the Same,” describes an arrangement combining AlGaInP and AlGaAs laser devices on a shared substrate. Their stripes are parallel, while the devices are positioned on opposite sides of the substrate’s centerline when viewed from the laser-light emitting side.

The patent further describes an off-angle substrate inclined by 2 to 15 degrees relative to the (100) plane. The two laser optical axes are arranged in parallel and approach one another at an angle of about 0.5 degrees. This configuration addresses the integration of different semiconductor laser devices for use in optical disc apparatus.

Career Highlights

Abe’s listed patent work reflects an engineering focus on semiconductor lasers and optical disc technology. His association with Sony Corporation connects this work to a company active in electronics and optical products.

Collaborations

The provided information names Nozomu Hoshi and Youichi Suzuki as Abe’s coworkers. It does not specify their roles in the patent or describe particular collaborative projects.

Conclusion

Hiroaki Abe’s patent record highlights semiconductor laser arrangements intended for optical disc applications, including a design that combines AlGaInP and AlGaAs devices on an angled substrate.