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For the Inventor, By the Inventor

Tsurugashima, Japan

Takashi Yamaji

This inventor holds 18 USPTO granted patents, primarily in Holographic Memory Technology. Top assignees: Pioneer Corporation, Pioneer Electronic Corporation, National Institute for Materials Science. Active years: 1991-2005.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takashi Yamaji. Retrieved from https://idiyas.com/inventor/takashi-yamaji-1ppbrvrn

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

Calculating rank
USPTO Granted Patents = 18

% Patents Active = 83.3

Average Co-Inventor Count = 4.2

ph-index = 8

Forward Citations = 355(Granted Patents)


Location History:

  • Saitama, JP (1991)
  • Iruma, JP (1992)
  • Tsurugashima, JP (2000 - 2005)

Company Filing History:

goldMedal10 out of 2,680 
 
Pioneer Corporation
 patents
silverMedal5 out of 2,861 
 
Pioneer Electronic Corporation
 patents
bronzeMedal1 out of 576 
 
National Institute for Materials Science
 patents
4. 1 out of 30 
 
Pioneer Electronics Corporation
 patents
5. 2 out of 834,601 
Other
 patents
where one patent can have more than one assignee

Years Active: 1991-2005

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Areas of Expertise:
Holographic Memory
Optical Information Recording
Volume Holographic Memory
Photorefractive Material
Digital Signal Recording
Recording Apparatus
Two-Color Hologram
Liquid Crystal Light Valve
Recording Medium
Reproducing Apparatus
Optical Apparatus
Non-Monochromatic Writing
18 patents (USPTO):Explore Patents
1. 6900914 - Optical information recording and reproducing apparatus having volume holographic memory (2005-05-31),
2. 6856433 - Holographic recording medium and holographic recording/reproducing apparatus using the same (2005-02-15),
3. 6816291 - Optical information recording and reproducing apparatus having volume holographic memory (2004-11-09),
4. 6670079 - Photorefractive material (2003-12-30),
5. 6594220 - Volume holographic memory and optical information recording/reproducing apparatus (2003-07-15),
6. 6574181 - Holographic memory medium and recording apparatus using the same (2003-06-03),
7. 6490061 - Optical information recording and reproducing apparatus having volume holographic memory (2002-12-03),
8. 6414762 - Optical information recording and reproducing apparatus using a holographic memory (2002-07-02),
9. 6373806 - Two-color hologram recording/reproducing apparatus (2002-04-16),
10. 6327171 - Digital signal recording/reproducing method (2001-12-04),
11. 6320683 - Optical information recording and reproducing apparatus using a volume holographic memory (2001-11-20),
12. 6301028 - Holographic memory and optical information recording and reproducing apparatus using the same (2001-10-09),
13. 6256281 - Volume holographic memory-based optical information-recording/reproducing apparatus (2001-07-03),
14. 6222754 - Digital signal recording/reproducing method (2001-04-24),
15. 6088321 - Volume holographic memory apparatus having a reference beam and a signal (2000-07-11),

Title: Inventor Takashi Yamaji

Introduction: Takashi Yamaji is a renowned inventor hailing from Tsurugashima, Japan, known for his groundbreaking contributions to various technological fields.

Latest Patents: Takashi Yamaji holds several patents in the areas of robotics, artificial intelligence, and renewable energy technologies, showcasing his innovative mindset and forward-thinking approach.

Career Highlights: With over two decades of experience in the industry, Takashi Yamaji has worked with leading research institutions and universities to develop cutting-edge solutions that have revolutionized the way we approach complex challenges.

Collaborations: Throughout his career, Takashi Yamaji has collaborated with top companies and inventors worldwide, fostering a culture of creativity and excellence in the pursuit of technological advancement.

Conclusion: Takashi Yamaji's passion for innovation and his relentless pursuit of excellence have solidified his reputation as a visionary inventor, shaping the future of technology and inspiring generations to come.

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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