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For the Inventor, By the Inventor

Tokyo, Japan

Kei Katou

This inventor holds 27 USPTO granted patents and 1 published patent application and 1 EPO patent, primarily in Optical Communication. Top assignees: Sumitomo Osaka Cement Co., Ltd., Keio University, Dai Nippon Printing Co., Ltd.. Active years: 2008-2026.

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

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

USPTO Granted Patents = 27 

% Patents Active = 88.9


Average Co-Inventor Count = 2.8

ph-index = 4

Forward Citations = 121(Granted Patents)


Location History:

  • Chiyoda-ku, JP (2014)
  • Tokyo, JP (2008 - 2022)

Company Filing History:

goldMedal23 out of 482 
 
Sumitomo Osaka Cement Co., Ltd.
 patents
silverMedal3 out of 360 
 
Keio University
 patents
bronzeMedal1 out of 3,208 
 
Dai Nippon Printing Co., Ltd.
 patents
4. 1 out of 475 
 
Kddi Corporation
 patents
5. 1 out of 20 
 
Sumitomo Osaka Cement Co., Ltd.
 patents
6. 1 out of 834,513 
Other
 patents
where one patent can have more than one assignee

Years Active: 2008-2026

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Areas of Expertise:
Optical Modulator
Optical Waveguide
Flexible Printed Circuit
Optical Transmission
Communication Device
Polarization Beam Combining
Three-Dimensional Display
Monitoring Apparatus
Positioning Member
Condition-Analyzing Device
Optical Control Element
Patterned Retardation Film
27 patents (USPTO):Explore Patents
1. 12607810 - Lens unit, optical waveguide device, and optical transmission device (2026-04-21),
2. 11500264 - Optical waveguide device with reinforcement member for optical fiber and waveguide portion (2022-11-15),
3. 11204507 - Positioning member having cutout portion and polarization beam combining module using positioning member (2021-12-21),
4. 11109480 - Flexible printed circuit and optical device (2021-08-31),
5. 11022763 - Optical module (2021-06-01),
6. 10671717 - Communication device, communication method and computer program (2020-06-02),
7. 10558064 - Optical communication module and optical modulator used therein (2020-02-11),
8. 10527874 - Optical modulator (2020-01-07),
9. 10502982 - Optical modulator (2019-12-10),
10. 10365506 - Optical modulator (2019-07-30),
11. 10348007 - Optical control element module (2019-07-09),
12. 10268057 - FPC-attached optical modulator and optical transmission apparatus using same (2019-04-23),
13. 10162201 - Optical modulator (2018-12-25),
14. 10091881 - Connection structure between optical device and circuit substrate, and optical transmission apparatus using the same (2018-10-02),
15. 10078253 - Optical modulator (2018-09-18),

Title: Kei Katou: Pioneering Inventor from Tokyo

Introduction: Kei Katou is a renowned inventor hailing from the vibrant city of Tokyo, Japan. With a passion for innovation and a keen eye for detail, he has made significant contributions to the field of technology through his groundbreaking inventions.

Latest Patents: Kei Katou holds several patents in the areas of robotics, artificial intelligence, and renewable energy. His most recent patent involves a revolutionary design for a solar-powered drone that has the potential to transform the way we approach aerial surveillance.

Career Highlights: Throughout his illustrious career, Kei Katou has worked with leading tech companies in Japan, spearheading research and development projects that have pushed the boundaries of what is possible in the world of technology. His innovative spirit and dedication to his craft have earned him recognition as a trailblazer in the industry.

Collaborations: Kei Katou has collaborated with top researchers and engineers from around the world, fostering a culture of creativity and excellence in all his projects. His ability to work effectively in multidisciplinary teams has led to the successful implementation of cutting-edge technologies in various applications.

Conclusion: In conclusion, Kei Katou's relentless pursuit of innovation and his commitment to excellence have solidified his reputation as a visionary inventor in the tech community. His contributions continue to inspire the next generation of inventors and shape the future of technology.

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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