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For the Inventor, By the Inventor

Sagamihara, Japan

Yoshihiro Katsu

This inventor holds 6 USPTO granted patents. Top assignees: International Business Machines Corporation, Other. Active years: 2003-2007.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshihiro Katsu. Retrieved from https://idiyas.com/inventor/yoshihiro-katsu-2l3sbw6a

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

Calculating rank
USPTO Granted Patents = 6

% Patents Active = 66.7

Average Co-Inventor Count = 3.6

ph-index = 4

Forward Citations = 56(Granted Patents)


Location History:

  • Zama, JP (2003)
  • Kanagawa-ken, JP (2003 - 2004)
  • Sagamihara, JP (2003 - 2007)

Company Filing History:

goldMedal4 out of 166,425 
 
International Business Machines Corporation
 patents
silverMedal2 out of 834,601 
Other
 patents

Years Active: 2003-2007

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6 patents (USPTO):Explore Patents
1. 7212257 - Liquid crystal display device, side backlight unit, lamp reflector and reflection member (2007-05-01),
2. 7064741 - Light source device, display device and reflection sheets for use therewith (2006-06-20),
3. 6692133 - Plane light source apparatus, light guide plate and display (2004-02-17),
4. 6607281 - Light guide plate, sidelight type light source device and image display device (2003-08-19),
5. 6597427 - Liquid crystal panel, display device, identification mark detection device, detection display system, TFT array repair device and identification mark detection method (2003-07-22),
6. 6572236 - Back light unit, liquid crystal display, and method for manufacturing light guide plate (2003-06-03),

Title: Innovations of Yoshihiro Katsu

Introduction

Yoshihiro Katsu is a notable inventor based in Sagamihara, Japan. He has made significant contributions to the field of liquid crystal display technology. With a total of 6 patents to his name, Katsu has developed innovative solutions that enhance display performance and efficiency.

Latest Patents

Katsu's latest patents include a liquid crystal display device featuring a side backlight unit designed to minimize or eliminate extraneous bright lines on the LCD panel. This device incorporates a lamp reflector and lamp positioned on the light incident side surface of a light guide plate. A light reflection layer is formed on the inner surface of the lamp reflector, complemented by a transparent protective layer that is less than 5 micrometers thick. Additionally, he has developed a light source device and display device that suppress uneven luminance by utilizing a light guide with concave or convex structural portions. This innovative design includes a reflection layer with strategically positioned spacers to optimize the reflecting surface's interaction with the light guide.

Career Highlights

Throughout his career, Yoshihiro Katsu has worked with prominent companies, including IBM. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking advancements in display technology.

Collaborations

Katsu has collaborated with talented individuals such as Masaru Suzuki and Akiko Nishikai. These partnerships have fostered a creative environment that has led to the development of innovative technologies.

Conclusion

Yoshihiro Katsu's contributions to liquid crystal display technology demonstrate his commitment to innovation and excellence. His patents reflect a deep understanding of the complexities involved in display systems, making him a significant figure in the field.

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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