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For the Inventor, By the Inventor

Ibaraki, Japan

Satoru Kawahara

This inventor holds 8 USPTO granted patents. Top assignees: Nitto-Denko Corporation, Other. Active years: 2003-2010.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Satoru Kawahara. Retrieved from https://idiyas.com/inventor/satoru-kawahara

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

USPTO Granted Patents = 8

% Patents Active = 50.0

Average Co-Inventor Count = 4.1

ph-index = 7

Forward Citations = 91(Granted Patents)


Company Filing History:

goldMedal7 out of 3,949 
 
Nitto-Denko Corporation
 patents
silverMedal1 out of 834,513 
Other
 patents

Years Active: 2003-2010

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8 patents (USPTO):Explore Patents
1. 7852561 - Optical compensation layer-attached polarizing plate, liquid crystal panel, liquid crystal display, image display, and method for producing optical compensation layer-attached polarizing plate (2010-12-14),
2. 7391935 - Retardation film, process for producing the same, optical film, image display, liquid crystal panel and liquid crystal display (2008-06-24),
3. 7336857 - Retardation film, process for producing the same, optical film, image display, liquid crystal panel and liquid crystal display (2008-02-26),
4. 7215839 - Retardation film, process for producing the same, optical film, image display, liquid crystal panel and liquid crystal display (2007-05-08),
5. 6970213 - Optical film and liquid-crystal display device using the optical film (2005-11-29),
6. 6958797 - Optical film having low chromaticity variation and quarter wavelength plate, and liquid crystal display using the same (2005-10-25),
7. 6809782 - Diffusing polarizing member and liquid crystal display (2004-10-26),
8. 6661487 - Laminated optical film, method for producing the same film and liquid-crystal display device using the same film (2003-12-09),

Title: Satoru Kawahara: Innovator in Optical Technologies

Introduction

Satoru Kawahara is a prominent inventor based in Ibaraki, Japan. He has made significant contributions to the field of optical technologies, holding a total of 8 patents. His work primarily focuses on advancements in polarizing plates and liquid crystal displays.

Latest Patents

Kawahara's latest patents include an optical compensation layer-attached polarizing plate, a liquid crystal panel, a liquid crystal display, and an image display. One notable invention is an optical compensation layer-attached polarizing plate that consists of a polarizing plate, an optical compensation layer, and another optical compensation layer laminated in sequence. This invention features specific relationships between the refractive indices and includes a resin with a photoelastic coefficient of at most 2.0×10 m/N. The optical compensation layer is designed to achieve in-plane retardation within defined ranges, enhancing the performance of optical devices.

Career Highlights

Throughout his career, Satoru Kawahara has worked with notable companies, including Nitto-Denko Corporation. His expertise in optical technologies has led to numerous innovations that have impacted the industry.

Collaborations

Kawahara has collaborated with several professionals in his field, including Naoki Takahashi and Ikuo Kawamoto. These collaborations have contributed to the development of advanced optical solutions.

Conclusion

Satoru Kawahara's contributions to optical technologies through his patents and collaborations highlight his role as a key innovator in the industry. His work continues to influence advancements in liquid crystal displays and polarizing technologies.

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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