Hiroharu Wakabayashi

This inventor holds 23 USPTO granted patents, primarily in Optical Communication. Top assignees: Kokusai Denshin Denwa Co., Ltd., Kokusai Denshin Denwa Kabushiki Kaisha, Kokusai Benshin Kabushiki Kaisha. Active years: 1980-2000.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroharu Wakabayashi. Retrieved from https://idiyas.com/inventor/hiroharu-wakabayashi

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

USPTO Granted Patents = 23

% Patents Active = 100.0

Average Co-Inventor Count = 2.8

ph-index = 13

Forward Citations = 343(Granted Patents)

Location History:

Nakamura, JP (1980 - 1981)
Tokyo, JP (1980 - 1988)
Kawasaki, JP (1981 - 1996)
Kanagawa, JP (1987 - 2000)

Company Filing History:

11 out of 226

Kokusai Denshin Denwa Co., Ltd.

patents

11 out of 339

Kokusai Denshin Denwa Kabushiki Kaisha

patents

1 out of 1

Kokusai Benshin Kabushiki Kaisha

patent

Years Active: 1980-2000

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Areas of Expertise:

Wavelength-Division Multiplexing

Optical Transmitter

Chromatic Dispersion

Optical Repeater

Fiber Laser

Optical Switch

Signal Monitoring

Optical Loss Measurement

Optical Privacy Communication

High-Speed Communication

Light Dispersion

Fault Location

23 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 6115156 - Demultiplexer device for wavelength-division multiplexed optical fiber (2000-09-05),

2. 5539557 - Supervisory signal receiving method and apparatus (1996-07-23),

3. 5471333 - Optical communication system (1995-11-28),

4. 5430795 - Optical transmitter with the signal light of reduced degree of (1995-07-04),

5. 5406368 - Method and apparatus for chromatic dispersion measurements (1995-04-11),

6. 5162936 - Apparatus for monitoring the operation of an optical repeater (1992-11-10),

7. 5140452 - Long-distance high-speed optical communication scheme (1992-08-18),

8. 5138621 - Pumping light source drive system for an optical amplifier (1992-08-11),

9. 5042039 - Er-doped optical fiber laser device (1991-08-20),

10. 4933990 - Optical privacy communication system in two-way optical transmission (1990-06-12),

11. 4720162 - Device for switching from one light source to another (1988-01-19),

12. 4710976 - Optical repeater monitoring system (1987-12-01),

13. 4411520 - Light dispersion measuring apparatus (1983-10-25),

14. 4408831 - Optical switch (1983-10-11),

15. 4320968 - Fault location system in an optical fiber transmission system (1982-03-23),

Title: Hiroharu Wakabayashi: Pioneering Inventor from Kawasaki

Introduction: Hiroharu Wakabayashi is a renowned inventor hailing from Kawasaki, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Hiroharu Wakabayashi holds several patents in the areas of robotics, artificial intelligence, and renewable energy technologies, showcasing his continuous commitment to pushing the boundaries of technological advancement.

Career Highlights: With a career spanning over two decades, Hiroharu Wakabayashi has worked with leading tech companies in Japan, spearheading research and development projects that have led to significant technological breakthroughs.

Collaborations: Throughout his career, Hiroharu Wakabayashi has collaborated with top researchers, engineers, and scientists both locally and internationally, fostering a culture of innovation and knowledge exchange.

Conclusion: Hiroharu Wakabayashi's relentless pursuit of innovation and his passion for creating technology that makes a difference have solidified his position as a trailblazer in the world of inventions and patents.

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]