Yokohama, Japan

Seiichi Matsumoto

This inventor holds 21 USPTO granted patents, primarily in Liquid Crystal Displays. Top assignees: Canon Kabushiki Kaisha, Other. Active years: 1976-1985.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Seiichi Matsumoto. Retrieved from https://idiyas.com/inventor/seiichi-matsumoto

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 = 3.3

ph-index = 11

Forward Citations = 260(Granted Patents)


Location History:

  • Tokyo, JA (1976)
  • Tokyo, J (1976)
  • Yokohama, JA (1976 - 1978)
  • Yokohama, JP (1978 - 1985)

Company Filing History:


Years Active: 1976-1985

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Areas of Expertise:
Liquid Crystal Display
Camera Circuit
Focus Detection
View Finder
Photo-Sensing Circuit
Image Sharpness
Automatic Focus Adjustment
Object Distance Measurement
Exposure Control
Focusing Screen
Photo-Electric Conversion
21 patents (USPTO):Explore Patents

Title: Seiichi Matsumoto: A Pioneer in Liquid Crystal Display Technologies

Introduction: Seiichi Matsumoto, a notable inventor based in Yokohama, Japan, has made significant contributions to the field of liquid crystal display (LCD) technologies. With a remarkable portfolio of 20 patents, his work has paved the way for advancements in visual display systems that have become integral to modern electronics.

Latest Patents: Among his latest patents, Matsumoto developed a liquid crystal display system that ingeniously separates electrodes within the display. This innovation allows for the production of gradient or stepped voltages between the electrodes, enabling distinct sections of the display to exhibit varying light effects. This capability is crucial for conveying information clearly to users. Another prominent patent is a viewfinder device equipped with a liquid crystal cell that enhances visual clarity and functionality. By positioning the liquid crystal cell optimally within the viewfinder system, he successfully eliminates noise at the boundary of the display and the object view field, while also providing alarms for exposure issues and battery consumption.

Career Highlights: Matsumoto's career includes working at Canon Kabushiki Kaisha, a leading company in imaging and optical products. His role there facilitated the development of cutting-edge LCD technologies that have been a critical part of Canon’s offerings. His inventions reflect a deep understanding of electro-optic devices and their applications in everyday technologies.

Collaborations: Throughout his journey, Matsumoto has collaborated with notable individuals in the field, including Hideo Yokota and Kazuya Hosoe. These partnerships have fostered a creative environment that has led to numerous innovations and advancements in LCD technology.

Conclusion: Seiichi Matsumoto's contributions to liquid crystal display systems demonstrate the impactful role of inventors in shaping technology. His patents not only enhance visual experiences but also promote energy efficiency and functionality in various devices, solidifying his reputation as a visionary in the field of electronic displays.

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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