Masafumi Usuda

This inventor holds 90 USPTO granted patents and 3 published patent applications, plus 1 CIPO patent and 19 EPO patents, primarily in Mobile Communication Systems (CPC class H04W28-22). Top assignee: Ntt Docomo, Inc.. Active years: 2005-2019.

USPTO Granted Patents = 90 (Patent Applications = 3)

% Patents Active = 44.4

CIPO Patents = 1

EPO Patents = 19 (Patent Applications = 15)

Average Co-Inventor Count = 2.8

ph-index = 10

Forward Citations = 298(Granted Patents)

Forward Citations (Not Self Cited) = 290(Dec 10, 2025)

Inventors with similar research interests:

Location History:

Kanagawa, JP (2005 - 2012)
Shinagawa-ku, JP (2010 - 2013)
Yokosuka, JP (2006 - 2015)
Tokyo, JP (2008 - 2019)

Company Filing History:

90 out of 4,929

Ntt Docomo, Inc.

patents

Years Active: 2005-2019

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Areas of Expertise:

Mobile Communication

Transmission Rate Control

Radio Base Station

Wireless Control Station

Radio Network Controller

Transmission Power Control

Uplink Resource Allocation

Mobile Station

Data Transmission

Wireless Circuit Control

Fading Frequency Decision

Channel Estimation

90 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 10405240 - Mobile communication system, wireless control station, wireless base station, mobile station, and mobile communication method (2019-09-03),

2. 8942716 - Radio resource control method, radio base station, and radio network controller (2015-01-27),

3. 8804626 - Transmission rate control method, mobile station, radio network controller, and radio base station (2014-08-12),

4. 8750916 - Transmission power control method, and mobile communication system (2014-06-10),

5. 8750247 - Mobile communication system, mobile device, and control device (2014-06-10),

6. 8615245 - Radio network controller, base station, mobile station, mobile communication system and mobile communication method (2013-12-24),

7. 8611908 - Mobile communication method, base station and wireless line control station (2013-12-17),

8. 8588802 - Transmission rate control method, and mobile station (2013-11-19),

9. 8582477 - Transmission rate control method, mobile station and radio base station (2013-11-12),

10. 8571559 - User data transmission method, and radio network controller (2013-10-29),

11. 8565809 - Uplink radio resource allocation method, radio base station, and radio network controller (2013-10-22),

12. 8532692 - Transmission power control method, and radio network controller (2013-09-10),

13. 8532688 - Transmission power offset arbitration between base stations during soft handoff (2013-09-10),

14. 8488469 - Transmission rate control method, and mobile station (2013-07-16),

15. 8483228 - Mobile communication system, mobile station and radio base station (2013-07-09),

Title: The Innovative Mind of Masafumi Usuda

Introduction: Masafumi Usuda is a pioneering inventor hailing from Tokyo, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Masafumi Usuda holds several patents in the areas of robotics, artificial intelligence, and renewable energy technologies, showcasing his versatility and forward-thinking approach to invention.

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

Collaborations: Throughout his career, Masafumi Usuda has collaborated with top researchers, engineers, and scientists both locally and internationally, fostering a culture of innovation and knowledge-sharing.

Conclusion: Masafumi Usuda's relentless pursuit of innovation and his passion for creating solutions to complex problems have solidified his reputation as a visionary inventor in the global tech community.