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For the Inventor, By the Inventor

Gunma, Japan

Kazuo Koya

This inventor holds 23 USPTO granted patents, primarily in Optical Fiber Technology. Top assignees: Shin-Etsu Chemical Co., Ltd., Hitachi Cable, Inc., Kokusai Denshin Denwa Co., Ltd.. Active years: 1986-2003.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazuo Koya. Retrieved from https://idiyas.com/inventor/kazuo-koya

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 = 2.7

ph-index = 8

Forward Citations = 235(Granted Patents)


Location History:

  • Gunma-ken, JP (1996)
  • Gunma, JP (1986 - 2003)
  • Annaka, JP (2000 - 2003)

Company Filing History:

goldMedal21 out of 5,989 
 
Shin-Etsu Chemical Co., Ltd.
 patents
silverMedal3 out of 836 
 
Hitachi Cable, Inc.
 patents
bronzeMedal2 out of 226 
 
Kokusai Denshin Denwa Co., Ltd.
 patents
4. 1 out of 126 
 
Rikagaku Kenkyusho
 patents
5. 1 out of 834,513 
Other
 patents
where one patent can have more than one assignee

Years Active: 1986-2003

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Areas of Expertise:
Optical Fiber
Soliton Pulse Compression
Rare Earth Doped
Optical Amplifier
Multi-Branching Coupler
Wide-Band Coupler
Refractive Index
Fused Silica Glass
Quartz Glass
Resin Encapsulation
Bubbles Detection
Ellipticity Inspection
23 patents (USPTO):Explore Patents
1. 6600857 - Grating optical fiber, and optical fiber base material suitable for grating (2003-07-29),
2. 6549711 - Soliton pulse compression optical fiber and method for making soliton pulse compression optical fiber (2003-04-15),
3. 6301412 - Apparatus and method for making multi-branching optical coupler (2001-10-09),
4. 6157758 - Grating optical fiber, and optical fiber base material suitable for (2000-12-05),
5. 5712941 - Rare earth element-doped multiple-core optical fiber and method for (1998-01-27),
6. 5706124 - Rare earth element-doped optical fiber amplifier (1998-01-06),
7. 5671309 - Wide-band optical fiber coupler and method for preparing the same (1997-09-23),
8. 5570448 - Rare earth element-doped multiple-core optical fiber, method for (1996-10-29),
9. 5440420 - Optical amplifier (1995-08-08),
10. 5420950 - Wide wavelength range-optical fiber coupler and method for the (1995-05-30),
11. 5408309 - Apparatus and method for inspecting elliplicity and eccentricity of (1995-04-18),
12. 5406374 - Method for detecting bubbles and inclusions present in optical fiber (1995-04-11),
13. 5404415 - Optical fiber coupler and method for preparing same (1995-04-04),
14. 5329602 - Optical fiber coupler (1994-07-12),
15. 5295219 - Supporting member for optical fiber coupler (1994-03-15),

Title: Kazuo Koya: Pioneering Inventor from Gunma

Introduction: Kazuo Koya is a renowned inventor hailing from Gunma, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Kazuo Koya's latest patents include advancements in robotics, artificial intelligence, and sustainable energy solutions, showcasing his commitment to pushing the boundaries of technological development.

Career Highlights: With a career spanning over three decades, Kazuo Koya has worked with leading research institutions and tech companies, consistently delivering innovative solutions that have revolutionized various industries.

Collaborations: Throughout his career, Kazuo Koya has collaborated with top engineers, scientists, and designers from around the world, fostering a culture of creativity and excellence in all his projects.

Conclusion: Kazuo Koya's passion for innovation and his relentless pursuit of excellence continue to inspire the next generation of inventors and shape the future of technology.

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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