This inventor holds 10 USPTO granted patents. Top assignees: Hitachi, Ltd., Nippon Hoso' Kyokai, Hitachi Electronics Co., Ltd.. Active years: 1976-1982.
Location History:
- Yokohama, JA (1976)
- Kamakura, JP (1980 - 1982)
Company Filing History:
10 out of 42,726 
5 out of 382 
2 out of 7 Years Active: 1976-1982
Title: Hiroaki Nabeyama: Innovator in Signal Processing and Imaging Technology
Introduction
Hiroaki Nabeyama is a prominent inventor based in Yokohama, Japan. He has made significant contributions to the fields of signal processing and imaging technology. With a total of 10 patents to his name, Nabeyama's work has had a lasting impact on the development of solid-state cameras and color imaging devices.
Latest Patents
One of his latest patents is a signal processing circuit designed for use in solid-state cameras. This innovative circuit includes a sensor that derives an electrical signal from the camera, a preamplifier that amplifies the sensor's output, and an integrator that integrates the preamplifier's output. The circuit arrangement of the preamplifier is specifically designed to narrow its bandwidth, effectively suppressing abnormal increases in noise within the electrical signal.
Another notable patent is for a solid-state color imaging device. This device features a matrix arrangement of photo-electric conversion elements covered by various color filters. Each chroma signal necessary for color reproduction includes the same spectrum of vertical smear components. A single memory is utilized to store the vertical smear component from one of the chroma signals. By subtracting a predetermined multiple of the memory's output from all chroma signal output lines, the vertical smear components are eliminated, enhancing the quality of color reproduction.
Career Highlights
Throughout his career, Hiroaki Nabeyama has worked with esteemed companies such as Hitachi, Ltd. and Nippon Hoso Kyokai. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking technologies in imaging and signal processing.
Collaborations
Nabeyama has collaborated with notable individuals in his field, including Michio Masuda and Takehiko Yoshino. These partnerships have fostered innovation and have been instrumental in the development of his patented technologies.
Conclusion
Hiroaki Nabeyama's contributions to signal processing and imaging technology have established him as a key figure in his field. His innovative patents continue to influence the development of advanced imaging systems.