Yoshiteru Watanabe

Title: Innovations of Yoshiteru Watanabe

Introduction

Yoshiteru Watanabe is a notable inventor based in Sagamihara, Japan. He has made significant contributions to the field of technology, particularly in the development of power supply circuits and light guide units for liquid crystal display devices. With a total of 5 patents to his name, Watanabe's work has had a considerable impact on the industry.

Latest Patents

One of his latest patents is a power supply and reference voltage circuit for TFT LCD source drivers. This invention provides a high-precision drive power supply voltage using a low-precision reference voltage generating circuit. The power supply circuit includes a DC/DC converter that generates a voltage based on an oscillation signal from a power supply voltage. It outputs this voltage as a drive power supply voltage. Additionally, it features a stabilized power supply circuit that generates a highest-level reference potential for creating a gray-scale voltage in a driver circuit. A comparison unit outputs a difference voltage based on the difference between the drive power supply voltage and the highest-level reference potential. An internal reference voltage generating unit and an error amplifying unit further enhance the circuit's functionality.

Another significant patent involves a wedge-shaped light guide that provides enhanced polarized light. This invention aims to reduce the weight of the entire unit, making it compact while preventing emitted light from appearing in dark and bright stripes in a light guide unit for a backlight of a liquid crystal display device. The light guide unit comprises multiple light guide films laminated on the light guide member. The sloped surface opposite the incident surface is formed with grooves that have an inclination related to the Brewster angle. A prism sheet is also included to deflect the light emitted from the light guide unit.

Career Highlights

Throughout his career, Yoshiteru Watanabe has worked with prominent companies such as IBM and Stanley Electric Co., Ltd. His experience in these organizations has contributed to his expertise in developing innovative technologies.

Collaborations

Watanabe has collaborated with notable individuals in the field, including Masaru Suzuki and Motohiro Sugino. Their joint efforts have further advanced the innovations in which they have been involved.

Conclusion

Yoshiteru Watanabe's contributions to technology through his patents and collaborations highlight his role as a significant inventor in the industry. His work continues to influence advancements