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For the Inventor, By the Inventor

Tokorozawa, Japan

Naoharu Yanagawa

This inventor holds 69 USPTO granted patents and 1 published patent application, primarily in Optical Recording Technology (CPC class 369 ). Top assignees: Pioneer Electronic Corporation, Pioneer Corporation, Pioneer Electric Corporation. Active years: 1992-2016.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Naoharu Yanagawa. Retrieved from https://idiyas.com/inventor/naoharu-yanagawa

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

USPTO Granted Patents = 69 

% Patents Active = 69.6

Average Co-Inventor Count = 1.8

ph-index = 11

Forward Citations = 386(Granted Patents)

Forward Citations (Not Self Cited) = 379(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Saitama-ken, JP (1996 - 2001)
  • Saitama, JP (1992 - 2011)
  • Tokorozawa, JP (1992 - 2011)
  • Kawasaki, JP (2016)

Company Filing History:

goldMedal34 out of 2,861 
 
Pioneer Electronic Corporation
 patents
silverMedal31 out of 2,679 
 
Pioneer Corporation
 patents
bronzeMedal2 out of 66 
 
Pioneer Electric Corporation
 patents
4. 2 out of 30 
 
Pioneer Electronics Corporation
 patents

Years Active: 1992-2016

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Areas of Expertise:
Optical Pickup
Information Recording
Tilt Servo Control
Pre-Pit Detection
Laser Light Intensity
Optical Recording Medium
Error Counting
Recording Apparatus
Calibrating Unit
Signal Level Adjustment
Variable Recording Layer
Astigmatism Minimization
69 patents (USPTO):Explore Patents
1. 9442010 - Light measurement apparatus (2016-09-13),
2. 8018803 - Information recording apparatus and method and computer program (2011-09-13),
3. 8014256 - Optical pickup and information device (2011-09-06),
4. 7961579 - Information reproduction apparatus (2011-06-14),
5. 7948844 - Information recording/reproducing device and the like (2011-05-24),
6. 7859965 - Recording device and method, reproducing device and method, recording/reproducing device and method, and computer program (2010-12-28),
7. 7852726 - Recording apparatus and recording medium, and computer program (2010-12-14),
8. 7760606 - Recording apparatus and recording method, and computer program (2010-07-20),
9. 7746741 - Information recording device and method, and computer program (2010-06-29),
10. 7623435 - Optical pickup device, and information recording and reproduction device (2009-11-24),
11. 7518964 - Information record apparatus and method, and computer program product (2009-04-14),
12. 7436742 - Optical recording device and aberration correction method (2008-10-14),
13. 7154831 - Device and method for controlling tilt servo (2006-12-26),
14. 7099255 - Error counting apparatus for counting an error number of a pre-pit signal in an optical disc and method therefor (2006-08-29),
15. 7042818 - Device and method for controlling tilt servo (2006-05-09),

Title: Naoharu Yanagawa: Pioneering Inventor from Tokorozawa

Introduction: Naoharu Yanagawa is a distinguished inventor hailing from Tokorozawa, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Yanagawa's recent patents include advancements in artificial intelligence algorithms for autonomous vehicles, wearable health monitoring devices, and sustainable energy solutions.

Career Highlights: With over two decades of experience in research and development, Yanagawa has worked with leading tech companies in Japan, spearheading projects that have revolutionized various industries.

Collaborations: Throughout his career, Yanagawa has collaborated with top researchers from universities and research institutions worldwide, fostering a culture of innovation and knowledge exchange.

Conclusion: Naoharu Yanagawa's relentless pursuit of innovation and his commitment to pushing the boundaries of technology make him a true visionary 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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