Location History:
- Tokyo, JP (1980 - 1981)
- Kanagawa, JP (2002)
Company Filing History:
Years Active: 1980-2002
Title: Kiyonori Tominaga: Innovator in Display Technology
Introduction
Kiyonori Tominaga is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of display technology, particularly in the development of color cathode ray tube (CRT) displays. With a total of 6 patents to his name, Tominaga's work has had a lasting impact on the industry.
Latest Patents
One of Tominaga's latest patents is for a color cathode ray tube display. This invention features a one-beam electron gun that reproduces colors by sequentially switching the respective chrominance signals, R, G, and B. The display is designed to pick up color images using a CCD image pickup device, which stores the image pickup signal in memory. This signal is then compared with an original video signal to minimize differences in chromaticity, ensuring stable color reproduction without black compression, even in high precision displays.
Another notable patent is the phase-tracking loop circuit. This circuit can function as an FM detector or a frequency-tracking control circuit for beam-index CRTs. It includes an adder that receives fluctuating frequency input, a tracking filter that adjusts its passband center frequency in response to a control voltage, and a phase comparator that compares the output phases to provide a control voltage to the tracking filter. This innovation allows for effective control of color switching in CRTs.
Career Highlights
Kiyonori Tominaga is currently employed at Sony Corporation, where he continues to innovate in display technology. His work has been instrumental in advancing the capabilities of CRT displays, making them more efficient and effective for various applications.
Collaborations
Throughout his career, Tominaga has collaborated with notable colleagues, including Yasunobu Kuniyoshi and Atsushi Matsuzaki. These partnerships have contributed to the development of groundbreaking technologies in the field.
Conclusion
Kiyonori Tominaga's contributions to display technology, particularly through his patents, have significantly influenced the industry. His innovative work continues to pave the way for advancements in color reproduction and display efficiency.