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Kawasaki, Japan

Hiroki Ooi

USPTO Granted Patents = 81 (Patent Applications = 1)

EPO Patents = 15 (Patent Applications = 6)

Average Co-Inventor Count = 3.3

ph-index = 16

Forward Citations = 758(Granted Patents)

Forward Citations (Not Self Cited) = 721(Dec 10, 2025)

Inventors with similar research interests:

Location History:

Kanagawa, JP (2003)
Kawasaki, JP (1998 - 2016)

Company Filing History:

80 out of 39,238

Fujitsu Corporation

Yokogawa Electric Corporation

Fujitsu Limited Co., Ltd.

where one patent can have more than one assignee

Years Active: 1998-2016

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Areas of Expertise:

Optical Signal Processing

Chromatic Dispersion Compensation

Optical Transmission Systems

Wavelength Division Multiplexing

Optical Add/Drop Multiplexer

Optical Amplifiers

Interferometric Monitoring

Optical Network Interconnects

Optical Transmitters

Optical Receivers

Spectral Offset Mitigation

81 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 9515733 - Mitigation of spectral offset in an optical filter (2016-12-06),

2. 9515727 - In-band optical signal-to-noise ratio monitor (2016-12-06),

3. 9270369 - Correction table for interferometric optical signal-to-noise ratio monitor (2016-02-23),

4. 9112605 - Dual-polarization interferometric optical signal-to-noise ratio monitor (2015-08-18),

5. 9065570 - Optical amplifier with feedback to obtain set gain and gain tilt (2015-06-23),

6. 8958695 - Optical adding and dropping device and optical transmission apparatus (2015-02-17),

7. 8948593 - Optical network interconnect device (2015-02-03),

8. 8867927 - Optical transmitting apparatus, optical receiving apparatus, and optical communication system comprising them (2014-10-21),

9. 8849113 - Wavelength selective switch and optical transmission apparatus (2014-09-30),

10. 8625996 - Optical transmitter, optical transmission method, and wavelength-selective variable delayer (2014-01-07),

11. 8331779 - Optical signal processing apparatus (2012-12-11),

12. 8320772 - Optical transmission apparatus (2012-11-27),

13. 8306430 - Dispersion compensating apparatus and dispersion compensating method (2012-11-06),

14. 8295703 - Optical transmission apparatus (2012-10-23),

15. 8265485 - Optical transmission system and method for chromatic dispersion compensation (2012-09-11),

Title: Hiroki Ooi: Pioneering Inventor from Kawasaki

Introduction: Hiroki Ooi is a distinguished inventor hailing from Kawasaki, Japan, known for his groundbreaking contributions to the field of technology and innovation.

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

Career Highlights: With a career spanning over two decades, Hiroki Ooi 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, Hiroki Ooi has collaborated with top researchers, engineers, and scientists both locally and internationally, fostering a culture of innovation and knowledge-sharing.

Conclusion: Hiroki Ooi's passion for innovation, coupled with his relentless drive to push the boundaries of technology, cements his legacy as a visionary inventor shaping the future of Japan's technological landscape.

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