Yokohama, Japan

Shigeki Asada

This inventor holds 3 USPTO granted patents. Top assignee: International Business Machines Corporation. Active years: 1987-1993.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shigeki Asada. Retrieved from https://idiyas.com/inventor/shigeki-asada

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile


% Patents Active = 100.0

Average Co-Inventor Count = 2.3

ph-index = 3

Forward Citations = 43(Granted Patents)


Location History:

  • Kanagawa, JP (1987)
  • Fujisawa, JP (1988)
  • Yokohama, JP (1993)

Company Filing History:


Years Active: 1987-1993

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3 patents (USPTO):Explore Patents

Title: The Innovative Mind of Shigeki Asada

Introduction: Shigeki Asada, an accomplished inventor based in Yokohama, Japan, has made significant contributions to the field of technology with his inventive spirit. With a total of three patents to his name, Asada's innovations have garnered attention in various technological domains and have been instrumental in enhancing display systems and document scanning apparatuses.

Latest Patents: Shigeki Asada's latest patents showcase his expertise in developing advanced technologies. One such innovation is a display system that converts N bit signals, each representing 2^N gray levels, to M bit signals representing 2^M gray levels. This system separates the N bit signals into higher M bits and lower N-M bits, utilizing distinctive modification tables to generate and exchange modification values, ultimately providing a more efficient way to handle gray levels in display devices.

Another notable patent is a document scan apparatus that employs a reflective reference position marker. This invention detects the relative position of a document support table in relation to an optical system during movement, ensuring precise scanning. The reference position marker reflects light from a document illumination source into a CCD sensor array, enabling it to generate signals beyond the expected range, thus improving the accuracy and reliability of document scanning.

Career Highlights: Shigeki Asada currently works at International Business Machines Corporation (IBM), where he has applied his inventive skills to develop cutting-edge technologies. His role at IBM has allowed him to collaborate with other talented individuals in the field, further fostering a creative environment.

Collaborations: Throughout his career, Asada has collaborated with several esteemed colleagues, including Masayuki Sohda and Hiroaki Yasuda. Their combined efforts have likely enhanced the innovative output within their projects and contributed to the successful development of significant technological advancements.

Conclusion: Shigeki Asada's inventive contributions reflect his talent and dedication to advancing technology. With three patents highlighting his work on display systems and document scanning, he has established himself as an innovative force at IBM. His collaborations with fellow inventors further solidify his impact on the industry, paving the way for future advancements in technology.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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