Toru Yoshida

Title: Toru Yoshida: Patented Innovations in Image and Video Display

Introduction

Toru Yoshida is an inventor associated with Miyagi, Japan, and Alps Electric Co., Ltd. His patent work includes technologies for image and video display, particularly systems that use coherent or laser light. Yoshida is credited with 4 patents.

Latest Patents

**Image Display Apparatus.** This invention uses a light source to emit coherent light and a holographic optical element to diffract it into image light. An optical mechanism guides the image light, while a detection unit measures its intensity. An adjustment unit uses the detection result to regulate the light source’s power, supporting the display of an image for a viewer.

**Video Display Device.** This device generates a desired image from a laser beam. Its laser source module includes a laser source, a drive unit, and a thermally conductive substrate. A temperature measurement member monitors the substrate, while a temperature adjustment member helps control its temperature. The circuit substrate connects the measurement member and laser source, and is positioned on the rear surface of the substrate, opposite the laser source’s placement surface.

Career Highlights

Yoshida’s listed inventions address optical display performance and the thermal management of laser-based display hardware. The patents describe both the generation and guidance of display light and the supporting components needed to operate a laser source.

Collaborations

Yoshida is associated with Alps Electric Co., Ltd. His listed coworkers include Shuichi Nagamori and Kazuhiro Soejima.

Conclusion

Toru Yoshida’s patent portfolio reflects work on holographic image display and laser-based video systems, combining optical design with light-source control and temperature management.