Shu Yamamoto

This inventor holds 75 USPTO granted patents and 2 EPO patents, primarily in Optical Communication (CPC class 3591). Top assignees: Kokusai Denshin Denwa Kabushiki Kaisha, Kokusai Denshin Denwa Co., Ltd., Kdd Corporation. Active years: 1983-2010.

USPTO Granted Patents = 75

% Patents Active = 94.7

EPO Patents = 2

Average Co-Inventor Count = 3.9

ph-index = 18

Forward Citations = 995(Granted Patents)

Forward Citations (Not Self Cited) = 981(Dec 10, 2025)

Inventors with similar research interests:

Location History:

Chofu, JP (1983 - 1988)
Kanagawa, JP (1988)
Saitama-ken, JP (1996 - 1999)
Shikishi, JP (1999)
Tokyo, JP (1988 - 2004)
Shiki, JP (1992 - 2004)
Saitama, JP (1999 - 2005)
Kamifukuoka, JP (2001 - 2006)
Cupertino, CA (US) (2010)

Company Filing History:

46 out of 339

Kokusai Denshin Denwa Kabushiki Kaisha

patents

9 out of 226

Kokusai Denshin Denwa Co., Ltd.

Kdd Submarine Cable Systems, Inc.

patents

5. 3 out of 21,351

Mitsubishi Denki Kabushiki Kaisha

Kabushiki Kaisha Toshiba

patents

8. 11 out of 834,411

Other

patents

where one patent can have more than one assignee

Years Active: 1983-2010

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Areas of Expertise:

Optical Amplifier

Wavelength Division Multiplexing

Signal Routing

Optical Transmitter

Optical Repeater

Optical Switching

Optical Transmission

Optical Pulse Generator

Multi-Wavelength Light Source

Optical Monitoring

Optical Add-Drop Multiplexer

High Speed Transmission

75 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 7746891 - Enabling mobile IPv6 communication over a network containing IPv4 components using ISATAP (2010-06-29),

2. 7142787 - Optical data transmission method and its system, optical transmitter and its method, and optical switcher (2006-11-28),

3. 6867908 - Optical amplifier having various control circuitry (2005-03-15),

4. 6801720 - Optical signal quality supervisory device (2004-10-05),

5. 6782201 - Four fiber ring network optical switching circuit using branched inputs (2004-08-24),

6. 6741810 - Signal demultiplexing device and signal routing device in high speed transmission system (2004-05-25),

7. 6614588 - Optical amplifier having various control circuitry (2003-09-02),

8. 6556325 - Optical repeater monitoring system and a method thereof (2003-04-29),

9. 6532091 - Optical digital regenerator (2003-03-11),

10. 6504638 - Optical amplifying transmission system and optical amplifier (2003-01-07),

11. 6459518 - Optical transmitting apparatus (2002-10-01),

12. 6445478 - Optical pulse position detecting circuit and an optical pulse generating apparatus and their methods (2002-09-03),

13. 6434288 - Optical switching system (2002-08-13),

14. 6377375 - Optical wavelength division multiplexed signal amplifying repeater and optical communication transmission line with very large capacity (2002-04-23),

15. 6331907 - Multi-wavelength light source and discrete-wavelength-variable light source (2001-12-18),

Title: The Innovative Journey of Shu Yamamoto

Introduction: Shu Yamamoto, a pioneering inventor hailing from Tokyo, Japan, has made significant contributions to the world of technology and innovation.

Latest Patents: Shu Yamamoto's latest patents include groundbreaking advancements in artificial intelligence algorithms for autonomous vehicles and cutting-edge medical devices for minimally invasive surgeries.

Career Highlights: With over two decades of experience in the tech industry, Shu Yamamoto has held key roles in leading research institutions and multinational companies, driving forward the development of next-generation technologies.

Collaborations: Throughout his career, Shu Yamamoto has collaborated with top universities and renowned experts in the field, fostering a culture of innovation and knowledge-sharing.

Conclusion: Shu Yamamoto's relentless pursuit of innovation and his passion for pushing the boundaries of technology continue to inspire the next generation of inventors and researchers worldwide.