Location History:
- Kanagawa, JP (1990)
- Yokohama, JP (1992)
- Yokosuka, JP (1988 - 1999)
Company Filing History:
15 out of 42,488 
1 out of 46 
Years Active: 1988-1999
Title: **Yoshiaki Iwahara: Pioneer in Display Technology**
Introduction
Yoshiaki Iwahara, based in Yokosuka, Japan, is a notable inventor recognized for his contributions to display technology, holding a total of 15 patents. His innovations focus on enhancing visual output quality, significantly impacting the evolution of projection systems.
Latest Patents
Two of his latest patents reflect his inventive prowess. The first is a **rear projection type display system** featuring a transmissive screen. This system incorporates a transparent reinforcing plate connected to a lenticular sheet to broaden the horizontal diverging angle by 60 degrees or more. By setting the duty factor of a black stripe on the lenticular sheet to 60% or greater, he achieves improved image contrast. The diverging angle in the vertically-diffusing lens is further modulated based on height, optimizing the visual range.
The second patent is a **liquid crystal projection display** designed for high light capturing efficiency and enhanced relative corner illuminance. This includes a light source, a liquid crystal panel, a projection lens, and a screen. A unique liquid lens, sealed between transparent members, enhances the corner illuminance by manipulating the angle of light rays emitted from the source, ensuring efficient performance without compromising quality.
Career Highlights
Yoshiaki Iwahara has had a distinguished career, contributing to renowned organizations such as Hitachi, Ltd., and Hitachi Video and Information System, Inc. His work has significantly advanced projection technology, marked by his innovative patents.
Collaborations
Throughout his career, Iwahara has collaborated with esteemed colleagues like Masanori Ogino and Shoji Kuroda. Together, they have contributed to groundbreaking advancements in the field of display technologies.
Conclusion
Yoshiaki Iwahara's inventive spirit and dedication to enhancing display systems exemplify the qualities of a true innovator. With numerous patents to his name, he remains a pivotal figure in the evolution of projection technology, inspiring future generations of inventors.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.