Company Filing History:
1 out of 824 
1 out of 427 Years Active: 1987-1996
Title: Ikuo Iwai: Innovator in Lighting and Semiconductor Technology
Introduction
Ikuo Iwai is a notable inventor based in Himeji, Japan. He has made significant contributions to the fields of lighting and semiconductor technology. With a total of 2 patents, Iwai's work has had a considerable impact on the efficiency and functionality of various devices.
Latest Patents
One of Iwai's latest patents is a metal halide lamp with a pleated luminous tube envelope. This innovative lamp design includes a luminous tube that is sealed and filled with predetermined rare gases and metal halide. It features a pair of electrodes positioned near both ends of the luminous tube, enclosed by an outer tube. The unique cross-section of the luminous tube forms an uneven pattern and is pleated along its surfaces. This design stabilizes the atmospheric pressure within the tube, preventing arc bending and prolonging the tube's lifetime. As a result, it achieves high vapor density, significantly improving luminous efficiency and color rendering.
Another significant patent by Iwai is a process for the exposure of semiconductor wafers. This process involves arranging a combination of electrodes in an opposed relation within a closed discharge cavity. Mercury is enclosed within the cavity, and the vapor pressure reaches between 0.4 to 5 atmospheres during discharge lighting. By controlling the discharge current and irradiating light with specific wavelengths onto the surface of a photoresist applied on the semiconductor wafer, this method enhances the exposure process.
Career Highlights
Ikuo Iwai has worked with prominent companies such as Ushio Denki and Samsung Display Devices. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking technologies in his field.
Collaborations
Throughout his career, Iwai has collaborated with notable individuals, including Tatsumi Hiramoto and Masachika Ohyama. These partnerships have fostered innovation and the development of advanced technologies.
Conclusion
Ikuo Iwai's contributions to lighting and semiconductor technology through his patents demonstrate his innovative spirit and technical expertise. His work continues to influence the industry, paving the way for future advancements.