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For the Inventor, By the Inventor

Tokyo, Japan

Machihiko Yamaguchi

This inventor holds 6 USPTO granted patents. Top assignee: Nec Lcd Technologies, Ltd.. Active years: 2004-2009.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Machihiko Yamaguchi. Retrieved from https://idiyas.com/inventor/machihiko-yamaguchi

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

USPTO Granted Patents = 6

% Patents Active = 83.3

Average Co-Inventor Count = 2.4

ph-index = 4

Forward Citations = 39(Granted Patents)


Location History:

  • Kanagawa, JP (2006)
  • Tokyo, JP (2004 - 2009)

Company Filing History:

goldMedal6 out of 568 
 
Nec Lcd Technologies, Ltd.
 patents

Years Active: 2004-2009

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6 patents (USPTO):Explore Patents
1. 7580018 - Liquid crystal display apparatus and method of driving LCD panel (2009-08-25),
2. 7126572 - Image display method and image display device (2006-10-24),
3. 7116297 - Liquid crystal display device and driving method for liquid crystal display device (2006-10-03),
4. 6894673 - Liquid crystal display control circuit (2005-05-17),
5. 6788306 - Display apparatus displaying pseudo gray levels and method for displaying the same (2004-09-07),
6. 6747669 - Method for varying initial value in gray scale modification (2004-06-08),

Title: Machihiko Yamaguchi: Innovator in Liquid Crystal Display Technology

Introduction

Machihiko Yamaguchi is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of liquid crystal display (LCD) technology. With a total of 6 patents to his name, Yamaguchi has been instrumental in advancing the capabilities of LCD panels.

Latest Patents

Yamaguchi's latest patents include a liquid crystal display apparatus and a method of driving an LCD panel. This innovative apparatus generates a set of write-in voltages corresponding to a horizontal line signal of an input video frame. The design allows for the write-in voltages to be supplied from the end points of the column lines to the liquid crystal cells of the selected row line for a variable write-in period. This method compensates for shades-of-gray differences between the top and bottom of the LCD panel by varying the write-in period based on the geometric distance from the selected row line to the end points of the column lines. Another notable patent is an image display method and device that features a display panel with a plurality of pixels divided into sub-pixels. This device utilizes a source driver to drive each pixel according to multiple data values, enhancing the display quality.

Career Highlights

Yamaguchi is currently employed at NEC LCD Technologies, Ltd., where he continues to innovate in the field of display technology. His work has significantly impacted the performance and quality of LCDs, making them more efficient and visually appealing.

Collaborations

Throughout his career, Yamaguchi has collaborated with notable colleagues, including Koichi Koga and Noboru Okuzono. These collaborations have further enriched his contributions to the field of liquid crystal displays.

Conclusion

Machihiko Yamaguchi's work in liquid crystal display technology exemplifies the spirit of innovation. His patents and career achievements highlight his dedication to advancing display technology, making a lasting impact in the industry.

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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