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For the Inventor, By the Inventor

Sapporo, Japan

Yoichi Oikawa

This inventor holds 29 USPTO granted patents and 5 published patent applications, primarily in Optical Technology. Top assignees: Fujitsu Corporation, Sumitomo Osaka Cement Co., Ltd., Trimatiz Limited. Active years: 1994-2014.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoichi Oikawa. Retrieved from https://idiyas.com/inventor/yoichi-oikawa

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

USPTO Granted Patents = 29 

% Patents Active = 37.9

Average Co-Inventor Count = 1.6

ph-index = 8

Forward Citations = 199(Granted Patents)


Location History:

  • Kawasaki, JP (1994 - 1996)
  • Yokohama, JP (2006 - 2010)
  • Sapporo, JP (1999 - 2014)

Company Filing History:

goldMedal27 out of 39,371 
 
Fujitsu Corporation
 patents
silverMedal1 out of 482 
 
Sumitomo Osaka Cement Co., Ltd.
 patents
bronzeMedal1 out of 2 
 
Trimatiz Limited
 patents

Years Active: 1994-2014

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Areas of Expertise:
Optical Apparatus
Polarized Control
Optical Receiver
Optical Amplifier
Wavelength Division Multiplexing
Optical Repeater
Optical Switch
Dispersion Compensation
Polarization Measurement
Wavelength Selective Switch
Optical Module
Filter Circuit
29 patents (USPTO):Explore Patents
1. 8670665 - Optical apparatus using polarized orthogonal control (2014-03-11),
2. 8180226 - Optical receiver (2012-05-15),
3. 8054524 - Optical amplifier (2011-11-08),
4. 7831118 - Coarse wavelength division multiplexing optical transmission system, and coarse wavelength division multiplexing optical transmission method (2010-11-09),
5. 7522843 - Optical repeater converting wavelength and bit rate between networks (2009-04-21),
6. 7486857 - Temperature-independent optical wavelength identification apparatus and optical wavelength identification method (2009-02-03),
7. 7476038 - Optical device module (2009-01-13),
8. 7443503 - Polarization measuring apparatus (2008-10-28),
9. 7440648 - Wavelength selective switch (2008-10-21),
10. 7424227 - Optical repeater converting wavelength and bit rate between networks (2008-09-09),
11. 7379636 - Optical switch (2008-05-27),
12. 7269314 - Dispersion compensation device (2007-09-11),
13. 7206476 - Optical switch (2007-04-17),
14. 7151866 - Optical device module (2006-12-19),
15. 7106927 - Optical cross-connect apparatus (2006-09-12),

Title: Yoichi Oikawa: Pioneering Inventor from Sapporo

Introduction: Yoichi Oikawa is a renowned inventor hailing from Sapporo, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Yoichi Oikawa holds several patents in the areas of robotics, artificial intelligence, and sustainable energy solutions, showcasing his versatility and forward-thinking approach to invention.

Career Highlights: With a career spanning over two decades, Yoichi Oikawa has worked with leading research institutions and tech companies, consistently pushing the boundaries of what is possible in the world of technology.

Collaborations: Throughout his career, Yoichi Oikawa has collaborated with top engineers, scientists, and designers from around the globe, fostering a culture of innovation and creativity in all his projects.

Conclusion: Yoichi Oikawa's passion for innovation and his relentless drive to create a better future through technology make him a true pioneer in the world of inventions.

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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