This inventor holds 19 USPTO granted patents and 1 published patent application, primarily in Image Processing Technology. Top assignee: Ricoh Company, Ltd.. Active years: 1994-2020.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Yokohama, JP (1994 - 1997)
- Kanagawa, JP (2000 - 2020)
Company Filing History:
Years Active: 1994-2020
Areas of Expertise:
Title: Hisao Shirasawa: Innovator in Image Processing Technologies
Introduction
Hisao Shirasawa is a prominent inventor based in Kanagawa, Japan, with a remarkable portfolio comprising 19 patents. His works primarily focus on advanced image processing technologies that enhance both the quality and functionality of imaging devices. This article delves into his latest patents, career highlights, and collaborations within the innovative environment of Ricoh Company, Ltd.
Latest Patents
Hisao Shirasawa’s recent inventions include a "Color Tone Control Device" and an "Image Forming Apparatus." The color tone control device features specialized circuitry designed to extract a color measurement target area from a master image, allowing for accurate calculation and correction of gradation related to color tone variations. This innovation significantly improves the quality of image processing in printing applications. His image reproducing apparatus operates across multiple display modes, utilizing high dynamic range image data stored in memory. It incorporates a dynamic range control unit that applies various control schemes, thus providing optimized image reproduction based on the selected display mode.
Career Highlights
Shirasawa has made significant contributions to the field of image processing while being employed at Ricoh Company, Ltd. His work has led to the development of technologies that have impacted both consumer and professional imaging markets. Through his inventive spirit, he has helped enhance Ricoh's reputation as a leader in imaging solutions.
Collaborations
Working closely with fellow innovators Seiji Miyahara and Hiroyuki Sakuyama, Shirasawa has fostered a collaborative environment at Ricoh that promotes creativity and technical advancement. Their combined efforts have resulted in several innovative products that continue to push the boundaries of imaging technology.
Conclusion
Hisao Shirasawa’s contributions to the field of imaging technology exemplify the spirit of innovation. With 19 patents to his name, he continues to play a crucial role in developing solutions that enhance image processing and reproduction. As he collaborates with talented colleagues at Ricoh Company, Ltd., his work promises to lead to even more advancements in the future.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile