Masakazu Shigehara

This inventor holds 49 USPTO granted patents and 1 published patent application, plus 4 CIPO patents and 2 EPO patents, primarily in Optical Communications. Top assignees: Sumitomo Electric Industries, Limited, Sumitomo Electric Optifrontier Co., Ltd., Sumitomo Electric Optifrontier Co., Ltd.. Active years: 1997-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masakazu Shigehara. Retrieved from https://idiyas.com/inventor/masakazu-shigehara

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

USPTO Granted Patents = 49 (Patent Applications = 1)

% Patents Active = 79.6

CIPO Patents = 4

EPO Patents = 2 (Patent Applications = 1)

Average Co-Inventor Count = 2.6

ph-index = 11

Forward Citations = 388(Granted Patents)

Location History:

Yokohama, JP (1997 - 2014)
Kanagawa, JP (2001 - 2015)
Osaka, JP (2021 - 2023)

Company Filing History:

49 out of 10,647

Sumitomo Electric Industries, Limited

patents

1 out of 18

Sumitomo Electric Optifrontier Co., Ltd.

patents

1 out of 49

Sumitomo Electric Optifrontier Co., Ltd.

patents

where one patent can have more than one assignee

Years Active: 1997-2026

Loading Chart...

Areas of Expertise:

Optical Connector

Diffraction Grating

Optical Amplifier

Optical Fiber

Signal Processing

Optical Module

Gain Equalizer

Optical Filter

Optical Waveguide

Raman Amplifier

Multiplexer/Demultiplexer

Temperature Sensor

49 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12613380 - Optical connector (2026-04-28),

2. 11555967 - Fiber connection structure provided with optical connector, module, and assembly (2023-01-17),

3. 10962709 - Optical fiber and optical fiber grating (2021-03-30),

4. 9176295 - Stranded optical cable with connectors (2015-11-03),

5. 8821036 - Optical module and optical system (2014-09-02),

6. 7521660 - Optical signal processor and optical signal processing method for processing optical signals in optical communications systems (2009-04-21),

7. 7502167 - Diffraction grating element, production method of diffraction grating element, and method of designing diffraction grating element (2009-03-10),

8. 7203399 - Optical fiber and fiber grating type filter including the same (2007-04-10),

9. 7184214 - Diffraction grating element, production method of diffraction grating element, and method of designing diffraction grating element (2007-02-27),

10. 7110636 - Optical device control apparatus and optical device control method (2006-09-19),

11. 7085054 - Diffraction grating element (2006-08-01),

12. 7079311 - Optical amplifier and optical communication system including the same (2006-07-18),

13. 7019904 - Diffraction grating element, production method of diffraction grating element, and method of designing diffraction grating element (2006-03-28),

14. 6965475 - Optical component, optical device and optical communications system (2005-11-15),

15. 6952511 - Gain equalizer and optical amplification apparatus (2005-10-04),

Title: The Innovative Journey of Masakazu Shigehara

Introduction:

Masakazu Shigehara is a pioneering inventor hailing from Yokohama, Japan. His relentless pursuit of innovation has led to groundbreaking developments in various fields.

Latest Patents:

Masakazu Shigehara holds several recent patents in the areas of robotics, artificial intelligence, and sustainable energy solutions. His inventions have garnered international recognition for their ingenuity and practicality.

Career Highlights:

With a career spanning over two decades, Masakazu Shigehara has worked with top research institutions and leading technology companies. His expertise in engineering and design has been instrumental in bringing cutting-edge products to the market.

Collaborations:

Throughout his career, Masakazu Shigehara has collaborated with renowned scientists, engineers, and inventors from around the globe. His collaborative spirit and innovative mindset have resulted in successful projects that push the boundaries of technology.

Conclusion:

Masakazu Shigehara's contributions to the world of innovation are truly remarkable. His passion for creating solutions that make a difference in people's lives sets him apart as a visionary inventor with a bright future ahead.

Profile summary based on public USPTO records.