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For the Inventor, By the Inventor

Isahaya, Japan

Kei Kawahara

This inventor holds 18 USPTO granted patents and 6 published patent applications and 1 EPO patent, primarily in Semiconductor Devices. Top assignee: Seiko Epson Corporation. Active years: 2002-2021.

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

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

Calculating rank
USPTO Granted Patents = 18 

% Patents Active = 33.3

 

Average Co-Inventor Count = 3.0

ph-index = 7

Forward Citations = 99(Granted Patents)


Location History:

  • Sakata, JP (2002)
  • Suwa, JP (2007)
  • Isahaya, JP (2002 - 2021)

Company Filing History:

goldMedal18 out of 34,333 
 
Seiko Epson Corporation
 patents

Years Active: 2002-2021

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Areas of Expertise:
Semiconductor Device
Mask Data Generation
Manufacturing Method
Dummy Wiring Layers
Fabrication Techniques
Dummy Convex Regions
Gate-Gate Layers
Drain-Drain Layers
Connecting Layers
Computer Readable Medium
Mask
Matrix Design
18 patents (USPTO):Explore Patents
1. 10930635 - Semiconductor device (2021-02-23),
2. 10679979 - Semiconductor device (2020-06-09),
3. 10121741 - Semiconductor device, method for manufacturing the same, method for generating mask data, mask and computer readable recording medium (2018-11-06),
4. 9978737 - Semiconductor device, method for manufacturing the same, method for generating mask data, mask and computer readable recording medium (2018-05-22),
5. 9953922 - Semiconductor device, method for manufacturing the same, method for generating mask data, mask and computer readable recording medium (2018-04-24),
6. 9455223 - Semiconductor device, method for manufacturing the same, method for generating mask data, mask and computer readable recording medium (2016-09-27),
7. 8984466 - Semiconductor device, method for manufacturing the same, method for generating mask data, mask and computer readable recording medium (2015-03-17),
8. 8637950 - Semiconductor device, method for manufacturing the same, method for generating mask data, mask and computer readable recording medium (2014-01-28),
9. 8418114 - Semiconductor device, method for manufacturing the same, method for generating mask data, mask and computer readable recording medium (2013-04-09),
10. 8214776 - Semiconductor device, method for manufacturing the same, method for generating mask data, mask and computer readable recording medium (2012-07-03),
11. 7977233 - Semiconductor device, method for manufacturing the same, method for generating mask data, mask and computer readable recording medium (2011-07-12),
12. 7802224 - Semiconductor device, method for manufacturing the same, method for generating mask data, mask and computer readable recording medium (2010-09-21),
13. 7271490 - Semiconductor device having dummy wiring layers and a method for manufacturing the same (2007-09-18),
14. 6888250 - Semiconductor device, method for manufacturing the same, method for generating mask data, mask and computer readable recording medium (2005-05-03),
15. 6605852 - Semiconductor device and method for manufacturing the same including forming a plurality of dummy convex regions on a matrix with a virtual linear line defining an angle (2003-08-12),

Title: Kei Kawahara: Pioneering Inventor from Isahaya

Introduction: Kei Kawahara is a renowned inventor hailing from Isahaya, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Kei Kawahara holds several patents in the areas of robotics, artificial intelligence, and renewable energy technologies, showcasing his continuous commitment to pushing the boundaries of technological advancement.

Career Highlights: With a career spanning over two decades, Kei Kawahara has worked with leading tech companies and research institutions, spearheading projects that have revolutionized industries and improved the quality of life for many.

Collaborations: Throughout his career, Kei Kawahara has collaborated with top engineers, scientists, and researchers from around the world, fostering a culture of innovation and knowledge-sharing that has led to numerous successful projects and inventions.

Conclusion: Kei Kawahara's passion for innovation, coupled with his relentless drive to solve complex challenges, has solidified his reputation as a visionary inventor in the global tech community.

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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