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For the Inventor, By the Inventor

Hachioji, Japan

Haruhisa Soda

This inventor holds 20 USPTO granted patents. Top assignees: Fujitsu Corporation, Fibest Limited, Macom Technology Solutions Holdings, Inc.. Active years: 1988-2021.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Haruhisa Soda. Retrieved from https://idiyas.com/inventor/haruhisa-soda

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

USPTO Granted Patents = 20

% Patents Active = 75.0

Average Co-Inventor Count = 2.1

ph-index = 9

Forward Citations = 260(Granted Patents)


Location History:

  • Atsugi, JP (1988)
  • Kawasaki, JP (1995 - 2005)
  • Hachioji, JP (2005 - 2019)
  • Tokyo, JP (2004 - 2021)

Company Filing History:

goldMedal11 out of 39,371 
 
Fujitsu Corporation
 patents
silverMedal3 out of 5 
 
Fibest Limited
 patents
bronzeMedal2 out of 374 
 
Macom Technology Solutions Holdings, Inc.
 patents
4. 1 out of 1 
 
Fibest Kk
 patent
5. 1 out of 109 
 
Fujitsu Quantum Devices Limited
 patents
6. 3 out of 834,453 
Other
 patents
where one patent can have more than one assignee

Years Active: 1988-2021

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20 patents (USPTO):Explore Patents
1. 11018477 - Tunable laser for coherent transmission system (2021-05-25),
2. 10481333 - Athermal silicon photonics wavelength locker and meter (2019-11-19),
3. 7911686 - Optical module and optical communication system (2011-03-22),
4. 7711019 - Variable wavelength light source (2010-05-04),
5. 6973238 - Optical switch and optical communication system (2005-12-06),
6. 6924918 - Optical modulator and method of manufacturing the same (2005-08-02),
7. 6906308 - Semiconductor light receiving device in which optical and electric signal are propagated at matched velocities (2005-06-14),
8. 6872966 - Optical semiconductor device (2005-03-29),
9. 6862124 - Semiconductor optical modulator, mach-zehnder optical modulator employing the same, and method of manufacturing semiconductor optical modulator (2005-03-01),
10. 6836573 - Directional coupler type optical modulator with traveling-wave electrode (2004-12-28),
11. 6710378 - Semiconductor light reception device of end face light incidence type (2004-03-23),
12. 6579737 - Optical semiconductor module, its manufacture, reflection film, its manufacture, and laser and optical devices using reflection film (2003-06-17),
13. 6448583 - Optical semiconductor module, its manufacture, reflection film, its manufacture, and laser and optical devices using reflection film (2002-09-10),
14. 6238943 - Optical semiconductor device and a method of manufacturing the same (2001-05-29),
15. 6081632 - Method of producing optical waveguide system, optical device and optical (2000-06-27),

Title: Haruhisa Soda: Innovator in Tunable Laser Technology

Introduction

Haruhisa Soda, based in Hachioji, Japan, is a prominent inventor with an impressive portfolio of 20 patents. His work primarily focuses on the field of photonics, specifically in the development of tunable laser devices and wavelength lockers, which have significant implications for communications technology.

Latest Patents

Among the latest innovative contributions of Haruhisa Soda is a tunable laser for coherent transmission systems. This advanced laser device incorporates an adaptive ring mirror, a gain waveguide, a loop mirror waveguide, and a booster amplifier waveguide. The combination of these elements allows for the alteration of the output wavelength, making it highly suitable for applications in coherent fiber-optic communications.

Another noteworthy patent is the athermal silicon photonics wavelength locker and meter, which features first and second waveguides that guide light. The device employs a multimode interference (MMI) coupler to merge the light from these waveguides, creating an interference pattern that is vital for accurately managing wavelengths in telecommunications. The interference pattern selector enhances the precision of the outputs, ensuring that they meet the power levels requisite for modern telecommunication networks.

Career Highlights

Haruhisa Soda has had a fruitful career in prominent corporations such as Fujitsu Corporation, where he honed his skills and contributed to multiple innovations in the field of photonics.

Collaborations

His inventive journey has been complemented by collaborations with esteemed colleagues, including Takuya Fujii and Hirohiko Kobayashi. These partnerships have fostered a collaborative environment that encourages innovation and the advancement of technology.

Conclusion

Haruhisa Soda stands out as a significant figure in the realm of tunable lasers and optical devices. His contributions are vital for the future of coherent transmission systems, and his patents continue to push the boundaries of what's possible in optical communications. With each innovation, he reinforces the importance of research and collaboration in the technological landscape.

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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