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For the Inventor, By the Inventor

Minamiminowa, Japan

Keiko Kumagai

This inventor holds 4 USPTO granted patents. Top assignee: Seiko Epson Corporation. Active years: 2009-2011.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Keiko Kumagai. Retrieved from https://idiyas.com/inventor/keiko-kumagai

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

USPTO Granted Patents = 4

Average Co-Inventor Count = 2.0

ph-index = 1

Forward Citations = 9(Granted Patents)


Location History:

  • Suwa, JP (2009)
  • Minamiminewa-village, JP (2010)
  • Minamiminowa-mura, JP (2009 - 2011)

Company Filing History:

goldMedal4 out of 34,268 
 
Seiko Epson Corporation
 patents

Years Active: 2009-2011

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4 patents (USPTO):Explore Patents
1. 7899094 - Laser light source device, illumination device, image display device, and monitor device (2011-03-01),
2. 7817334 - Wavelength conversion element, light source device, image display device, and monitor device (2010-10-19),
3. 7561612 - Laser source device, image display device equipped with the laser source device, and monitor device (2009-07-14),
4. 7561604 - Laser light source device, illumination device, image display device, and monitor device (2009-07-14),

Title: Keiko Kumagai: Innovator in Laser Technology

Introduction

Keiko Kumagai is a prominent inventor based in Minamiminowa, Japan. She has made significant contributions to the field of laser technology, holding a total of 4 patents. Her work focuses on developing advanced devices that utilize laser light for various applications.

Latest Patents

Kumagai's latest patents include a laser light source device, an illumination device, an image display device, and a monitor device. The laser light source device features a light source, an external resonator, and a wavelength conversion element that converts the wavelength of incident light. This innovative design allows for the separation of light into different optical paths, enhancing the efficiency of laser light emission.

Career Highlights

Kumagai is currently employed at Seiko Epson Corporation, where she continues to push the boundaries of laser technology. Her inventions have the potential to revolutionize various industries, including display technology and illumination systems.

Collaborations

Throughout her career, Kumagai has collaborated with notable colleagues such as Shunji Kamijima and Akira Komatsu. These partnerships have fostered a creative environment that encourages innovation and the development of cutting-edge technologies.

Conclusion

Keiko Kumagai's contributions to laser technology exemplify her dedication to innovation and excellence. Her patents reflect her expertise and commitment to advancing the field, making her a significant figure in the world of inventions.

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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