Keiichi Maeno

Title: Keiichi Maeno: Inventor of a Laser-Based Light Source Device.

Introduction

Keiichi Maeno is an inventor associated with Yokohama, Japan. His patent work includes a light source device designed to direct blue laser light toward a fluorescent body while allowing some of the resulting emitted light to pass through a dichroic mirror. He is associated with JVC Kenwood Corporation.

Latest Patents

Maeno is credited with 1 patent, titled “Light Source Device.” The invention uses a blue laser light module and a dichroic mirror. The mirror reflects incoming blue laser light in a direction that guides it to a fluorescent body, while allowing some light emitted by the fluorescent body in the opposite direction to pass through.

The mirror’s incident surface has a dichroic-coated region that reflects blue laser light. This region is shaped so that its length, measured perpendicular to the laser’s emission direction, increases with distance from the blue laser module.

Career Highlights

Maeno’s documented patent contribution concerns optical engineering and the design of laser-based illumination systems. The patent describes how the arrangement and shape of a dichroic coating can help direct excitation light and transmit light produced by a fluorescent body.

Collaborations

Maeno’s listed coworkers include Tadashi Furukawa and Takatsugu Aizaki. The available information identifies these professional associations but does not specify their roles in the patent.

Conclusion

Keiichi Maeno’s recorded invention focuses on a carefully configured dichroic mirror for a blue-laser and fluorescent-body light source, reflecting his contribution to optical device design.