Fumihiro Tanaka

Title: Fumihiro Tanaka: Innovator in Color Hard Copy Technology

Introduction

Fumihiro Tanaka is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of color hard copy technology, holding a total of seven patents. His innovative work has advanced the way color images are processed and printed.

Latest Patents

One of his latest patents is a color hard copy apparatus that features simplified analog-to-digital conversion. This apparatus converts an analog video signal of a still picture frame displayed on a color graphic display into binary video data, enabling the production of high-quality multicolor gradation pictures. The design utilizes a single analog-to-digital converter that samples the analog video signal multiple times at different threshold levels, ensuring a consistent conversion process for the entire picture frame. The binary video data is then stored in a picture memory and read out according to a predetermined program, allowing for the printing of detailed images.

Another significant patent involves a sampling clock generation circuit for video signals. This recording apparatus synchronizes the storage of image bit data with a horizontal sync signal. A voltage-controlled oscillator produces a frequency signal that is higher than the sync signal, which is then divided to create sampling pulses. This process allows for efficient data sampling and storage, ensuring that the image bit data is accurately captured and maintained in memory.

Career Highlights

Fumihiro Tanaka has worked with prominent companies in the technology sector, including Seiko Instruments & Electronics Ltd. and Daini Seikosha. His experience in these organizations has contributed to his expertise in developing innovative solutions for color imaging and printing technologies.

Collaborations

Throughout his career, Tanaka has collaborated with notable individuals such as Yoshio Shimada and Kenichi Matsushima. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies in the field.

Conclusion

Fumihiro Tanaka's contributions to color hard copy technology through his patents and collaborations highlight his role as an influential inventor. His work continues to impact the industry, paving the way for advancements in image processing and printing.