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For the Inventor, By the Inventor

Yokohama, Japan

Masafumi Nakamura

This inventor holds 34 USPTO granted patents, primarily in Information Recording. Top assignees: Hitachi, Ltd., Hitachi America, Ltd., Hitachi Consumer Electronics Co., Ltd.. Active years: 1986-2012.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masafumi Nakamura. Retrieved from https://idiyas.com/inventor/masafumi-nakamura

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

USPTO Granted Patents = 34

% Patents Active = 82.4

Average Co-Inventor Count = 3.9

ph-index = 11

Forward Citations = 726(Granted Patents)


Location History:

  • Kanagawa, JP (1993)
  • Yokohama, JP (1986 - 2012)

Company Filing History:

goldMedal32 out of 42,731 
 
Hitachi, Ltd.
 patents
silverMedal4 out of 169 
 
Hitachi America, Ltd.
 patents
bronzeMedal2 out of 365 
 
Hitachi Consumer Electronics Co., Ltd.
 patents
4. 1 out of 2,861 
 
Pioneer Electronic Corporation
 patents
where one patent can have more than one assignee

Years Active: 1986-2012

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Areas of Expertise:
Information Recording
Playback Method
Optical Disk
Digital Video Recording
Watermark Embedding
Disk Cartridge
Data Transmission
Error Correction
Signal Reproducing
Trick Play Capability
Tracking Servo
34 patents (USPTO):Explore Patents
1. 8295688 - Transmitting and recording method, reproducing method, and reproducing apparatus of information and its recording medium (2012-10-23),
2. 7805062 - Transmitting and recording method, reproducing method, and reproducing apparatus of information and its recording medium (2010-09-28),
3. 7565061 - Transmitting and recording method, reproducing method, and reproducing apparatus of information and its recording medium (2009-07-21),
4. 7019927 - Information signal recording and playback method and apparatus therefor (2006-03-28),
5. 6728408 - Water-mark embedding method and system (2004-04-27),
6. 6693966 - Transmitting and recording method, reproducing method, and reproducing apparatus of information and its recording medium (2004-02-17),
7. 6657831 - Information signal recording and playback method and apparatus therefor (2003-12-02),
8. 6549579 - Transmitting and recording method, reproducing method, and reproducing apparatus of information and its recording medium (2003-04-15),
9. 6438172 - Transmitting and recording method, reproducing method, and reproducing apparatus of information and its recording medium (2002-08-20),
10. 6424477 - Information signal recording and playback method and apparatus therefor (2002-07-23),
11. 6404979 - Optical disk and optical disk reproduction apparatus (2002-06-11),
12. 6314542 - Information recording method, reproducing method, and reproducing apparatus (2001-11-06),
13. 6308003 - Method of recording image data and method of reproducing information from optical disk (2001-10-23),
14. 6181664 - Disk cartridge and disk device using the same (2001-01-30),
15. 6108299 - Disk cartridge and disk device using the same (2000-08-22),

Title: Masafumi Nakamura - Pioneering Inventor from Yokohama, JP

Introduction: Masafumi Nakamura is a renowned inventor hailing from Yokohama, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Masafumi Nakamura holds several patents in the areas of robotics, artificial intelligence, and renewable energy technologies, showcasing his versatility and forward-thinking approach to invention.

Career Highlights: With over two decades of experience in the tech industry, Masafumi Nakamura has worked with leading research institutions and companies to develop cutting-edge solutions that have revolutionized various sectors.

Collaborations: Throughout his career, Masafumi Nakamura has collaborated with top engineers, scientists, and inventors globally, fostering a culture of innovation and knowledge exchange that has led to remarkable advancements in technology.

Conclusion: Masafumi Nakamura's passion for innovation, coupled with his dedication to pushing the boundaries of what is possible, has solidified his reputation as a trailblazing inventor in Yokohama, Japan, and beyond.

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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