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For the Inventor, By the Inventor

Yokohama, Japan

Katsumi Uesaka

This inventor holds 24 USPTO granted patents and 6 published patent applications, primarily in Optical Devices. Top assignees: Sumitomo Electric Industries, Limited, National Institute of Advanced Industrial Science and Technology, Sony Corporation. Active years: 1993-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Katsumi Uesaka. Retrieved from https://idiyas.com/inventor/katsumi-uesaka

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

USPTO Granted Patents = 24 

% Patents Active = 83.3

Average Co-Inventor Count = 1.8

ph-index = 4

Forward Citations = 87(Granted Patents)


Location History:

  • Kanagawa, JP (1993 - 2014)
  • Yokohama, JP (1997 - 2017)
  • Osaka, JP (2014 - 2024)

Company Filing History:

goldMedal23 out of 10,641 
 
Sumitomo Electric Industries, Limited
 patents
silverMedal3 out of 1,765 
 
National Institute of Advanced Industrial Science and Technology
 patents
bronzeMedal1 out of 58,145 
 
Sony Corporation
 patents
where one patent can have more than one assignee

Years Active: 1993-2026

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Areas of Expertise:
Optical Device
Wavelength-Tunable Light Source
Optical Transmitter
Optical Modulator
Laser Driver Circuit
Wavelength Monitor
Optical Receiver
Semiconductor Laser Diode
Control Method
Signal Detection
Optical Communication
Driver Circuit
24 patents (USPTO):Explore Patents
1. 12566303 - Optical device (2026-03-03),
2. 12066669 - Optical device (2024-08-20),
3. 11128104 - Wavelength-tunable light source and wavelength control method for the same (2021-09-21),
4. 9819149 - Optical transmitter implementing wavelength tunable diode (2017-11-14),
5. 9686018 - Optical transmitter emitting light with narrowed linewidth (2017-06-20),
6. 9444221 - Laser apparatus and method to re-tune emission wavelength tunable LD (2016-09-13),
7. 9395504 - System to control wavelength and method to control wavelength (2016-07-19),
8. 9395487 - Wavelength monitor (2016-07-19),
9. 9274399 - Optical modulator (2016-03-01),
10. 8781263 - Optical modulator (2014-07-15),
11. 8660388 - Optical modulation apparatus, method for controlling optical modulator, and control device for optical modulator (2014-02-25),
12. 8620116 - Optical modulation apparatus, method for controlling optical modulation apparatus (2013-12-31),
13. 8218976 - Optical receiver with trans-impedance responding in bit-by-bit to input signal (2012-07-10),
14. 8216866 - Method to manufacture semiconductor device with optical grating (2012-07-10),
15. 8121160 - Driver circuit for semiconductor laser diode driven in differential mode (2012-02-21),

Title: Inventor Katsumi Uesaka

Introduction: Katsumi Uesaka is a renowned inventor based in Yokohama, Japan, known for his groundbreaking contributions to various technological fields.

Latest Patents: Katsumi Uesaka holds several patents in the areas of robotics, artificial intelligence, and renewable energy technologies, showcasing his innovative mindset and forward-thinking approach.

Career Highlights: Throughout his career, Katsumi Uesaka has worked with leading research institutions and universities to develop cutting-edge solutions that have revolutionized industries. His passion for innovation has led to the creation of numerous impactful inventions.

Collaborations: Katsumi Uesaka has collaborated with top companies in Japan and globally to bring his inventions to the market, fostering partnerships that have driven technological advancements and societal progress.

Conclusion: Katsumi Uesaka's dedication to innovation and his remarkable contributions to the world of technology make him a highly respected figure in the inventor community, inspiring future generations to push the boundaries of what is possible.

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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