Hiroji Masuda

This inventor holds 17 USPTO granted patents, plus 1 CIPO patent and 3 EPO patents, primarily in Optical Amplifiers. Top assignees: Nippon Telegraph and Telephone Corporation, Fujikura Limited, Osaka Prefecture University. Active years: 1993-2016.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroji Masuda. Retrieved from https://idiyas.com/inventor/hiroji-masuda

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

Calculating rank

USPTO Granted Patents = 17

% Patents Active = 76.5

CIPO Patents = 1

EPO Patents = 3 (Patent Applications = 1)

Average Co-Inventor Count = 3.3

ph-index = 7

Forward Citations = 138(Granted Patents)

Location History:

Kanagawa, JP (1995)
Tokyo, JP (2000 - 2001)
Kanagawa-ken, JP (2002 - 2003)
Ibaraki-ken, JP (2004)
Mito, JP (2004 - 2009)
Yokosuka, JP (1993 - 2011)
Matsue, JP (2016)

Company Filing History:

17 out of 5,300

Nippon Telegraph and Telephone Corporation

Osaka Prefecture University

Ando Electric Company

patents

where one patent can have more than one assignee

Years Active: 1993-2016

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Areas of Expertise:

Optical Fiber

Optical Amplifier

Communication System

White Light Source

Thulium-Doped Fiber

Remote Pumping

Constant Gain Profile

Noise Figure Monitoring

Rare Earth Doped Fiber

Inline Repeater

Transmission System

17 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 9515450 - Amplifying optical fiber and optical amplifier (2016-12-06),

2. 9252556 - Amplifying optical fiber and optical amplifier (2016-02-02),

3. 7920793 - Inline repeater and optical fiber communication system (2011-04-05),

4. 7589888 - Optical amplifier having a constant gain profile (2009-09-15),

5. 7538937 - Optical amplifier (2009-05-26),

6. 7379236 - Optical fiber communication system using remote pumping (2008-05-27),

7. 7042634 - Optical amplifier (2006-05-09),

8. 6900885 - White light source (2005-05-31),

9. 6771414 - Optical fiber amplifier and optical communication system using the same (2004-08-03),

10. 6721092 - Thulium-doped fiber amplifier using pump light for improving conversion efficiency in a S-band (2004-04-13),

11. 6678087 - Optical amplifier and optical fiber communication system using the amplifier (2004-01-13),

12. 6583924 - Optical amplifier (2003-06-24),

13. 6469826 - Optical amplifier (2002-10-22),

14. 6172803 - Optical amplifier and transmission system using the same (2001-01-09),

15. 6122087 - Optical-frequency-stabilized light source (2000-09-19),

Title: Hiroji Masuda: Pioneering Inventor from Mito, Japan

Introduction: Hiroji Masuda is a renowned inventor hailing from Mito, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Hiroji Masuda holds several patents in various technological domains, including robotics, artificial intelligence, and renewable energy solutions.

Career Highlights: With a career spanning over three decades, Masuda has worked with leading tech companies and research institutions, consistently pushing the boundaries of innovation. His work has revolutionized industries and improved the lives of many.

Collaborations: Throughout his career, Hiroji Masuda has collaborated with top engineers, scientists, and researchers globally, fostering a culture of innovation and knowledge sharing. His collaborative efforts have led to the development of cutting-edge technologies.

Conclusion: Hiroji Masuda's passion for innovation and his relentless pursuit of technological advancement have solidified his position as a trailblazer in the world of inventions. His work continues to inspire future generations of inventors and innovators worldwide.

Profile summary based on public USPTO records.