This inventor holds 2 USPTO granted patents. Top assignee: Ricoh Company, Ltd.. Active years: 1989-1997.
Company Filing History:
Years Active: 1989-1997
Title: Innovations of Wasaku Yamada
Introduction
Wasaku Yamada is a notable inventor based in Mitaka, Japan. He has made significant contributions to the field of image processing and voice signal coding. With a total of 2 patents, Yamada's work has had a considerable impact on technology.
Latest Patents
Yamada's latest patents include an image processing system for adaptive coding of color document images. This system features an input part for reading images from color documents, a region separator for dividing images into elemental blocks, and an encoding part for compressing image data. His second patent is a voice signal coding method that compresses voice data by coding. This method involves grouping PCM coded voice data into blocks, identifying scale data, and refining code data to minimize errors in the reproduced voice signal.
Career Highlights
Yamada is currently employed at Ricoh Company, Ltd., where he continues to innovate in his field. His work has contributed to advancements in both image processing and voice signal technologies.
Collaborations
Some of his notable coworkers include Hisao Shirasawa and Yuichi Kadokawa. Their collaboration has likely fostered a creative environment that enhances innovation.
Conclusion
Wasaku Yamada's contributions to technology through his patents in image processing and voice signal coding highlight his role as a significant inventor. His work continues to influence advancements in these fields.