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For the Inventor, By the Inventor

Tokyo, Japan

Shunji Miyakawa

This inventor holds 4 USPTO granted patents. Top assignee: Dai Nippon Printing Co., Ltd.. Active years: 1999-2008.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shunji Miyakawa. Retrieved from https://idiyas.com/inventor/shunji-miyakawa

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

USPTO Granted Patents = 4

% Patents Active = 75.0

Average Co-Inventor Count = 2.7

ph-index = 3

Forward Citations = 66(Granted Patents)


Company Filing History:

goldMedal4 out of 3,208 
 
Dai Nippon Printing Co., Ltd.
 patents

Years Active: 1999-2008

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4 patents (USPTO):Explore Patents
1. 7343695 - Vacuum drying apparatus and vacuum drying method (2008-03-18),
2. 6624861 - Color filter subject to impurity extraction treatment and liquid crystal display device having high voltage holding ratio (2003-09-23),
3. 6473995 - Vacuum drying apparatus and vacuum drying method (2002-11-05),
4. 5965209 - Liquid application method and application apparatus (1999-10-12),

Title: Shunji Miyakawa: Innovator in Vacuum Drying and Display Technology

Introduction

Shunji Miyakawa is a prominent inventor based in Tokyo-to, Japan. He has made significant contributions to the fields of vacuum drying technology and liquid crystal display devices. With a total of 4 patents to his name, Miyakawa's work has had a notable impact on improving manufacturing processes and product quality.

Latest Patents

Miyakawa's latest patents include a vacuum drying apparatus and a vacuum drying method. This innovative apparatus allows for a reduction in the drying time of objects while ensuring an excellent surface condition post-drying. The design features a vacuum pump connected to an exhaust port of a vacuum chamber, utilizing a frequency converter to optimize the drying process. Another significant patent involves a color filter designed to prevent contamination of liquid crystal layers with ionic materials. This color filter enhances the voltage holding ratio of liquid crystals, thereby improving the overall display quality of liquid crystal display devices.

Career Highlights

Shunji Miyakawa is currently employed at Dai Nippon Printing Co., Ltd., where he continues to develop cutting-edge technologies. His work has been instrumental in advancing the efficiency and effectiveness of various manufacturing processes.

Collaborations

Miyakawa has collaborated with notable colleagues, including Yasuhide Nakajima and Soichi Matsuo. Their combined expertise has contributed to the successful development of innovative technologies in their respective fields.

Conclusion

Shunji Miyakawa's contributions to vacuum drying technology and liquid crystal displays exemplify his commitment to innovation. His patents reflect a deep understanding of the technical challenges in these areas and a dedication to enhancing product quality.

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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