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For the Inventor, By the Inventor

Chiba, Japan

Hitoshi Okada

This inventor holds 34 USPTO granted patents and 1 EPO patent, primarily in Holographic Technology. Top assignees: Clarion Co, Sony Corporation. Active years: 1978-2013.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hitoshi Okada. Retrieved from https://idiyas.com/inventor/hitoshi-okada

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 = 76.5


Average Co-Inventor Count = 2.4

ph-index = 11

Forward Citations = 323(Granted Patents)


Location History:

  • Yotsukaido, JP (1978)
  • Toda, JP (1980 - 1984)
  • Saitama, JP (1983 - 1985)
  • Tokyo, JP (1982 - 1991)
  • Chiba, JP (1982 - 2013)

Company Filing History:

goldMedal17 out of 1,057 
 
Clarion Co
 patents
silverMedal17 out of 58,145 
 
Sony Corporation
 patents

Years Active: 1978-2013

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Areas of Expertise:
Hologram Reproducing
Optical Unit
Optical Disk Drive
Magnetic Tape Recording
Phase Modulating Element
Tracking Servo
Focusing Servo Control
Color Television Signal
Cassette Mechanism
Braking Mechanism
Tape Player
Drive Control
34 patents (USPTO):Explore Patents
1. 8416480 - Hologram reproducing apparatus, hologram reproducing method, and phase modulating element (2013-04-09),
2. 8194517 - Hologram recording and reproducing device and method for recording hologram (2012-06-05),
3. 8174745 - Optical unit, method for controlling drive, and holographic apparatus (2012-05-08),
4. 7969846 - Hologram recording and reproducing device and method for recording hologram (2011-06-28),
5. 7652968 - Method and apparatus for recording and/or reproducing a hologram (2010-01-26),
6. 7283286 - Hologram recording/reproducing device and optical unit (2007-10-16),
7. 7006412 - Optical disk drive and optical disc recording method (2006-02-28),
8. 6654323 - Method of tracking servo for optical pickup device (2003-11-25),
9. 5530336 - Battery protection circuit (1996-06-25),
10. 5168487 - Optical recording and/or reproducing apparatus (1992-12-01),
11. 5083212 - Apparatus and method for recording a color television signal on an (1992-01-21),
12. 5031056 - Tape tension mechanism (1991-07-09),
13. 4992652 - Focus error detecting circuit for disk player (1991-02-12),
14. 4972337 - Device for controlling rotation of a magnet used in a magneto-optical (1990-11-20),
15. 4964589 - Mode changing mechanism for a tape player (1990-10-23),

Title: Hitoshi Okada - Innovative Inventor from Chiba, Japan

Introduction: Hitoshi Okada is a renowned inventor hailing from Chiba, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Hitoshi Okada 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 a career spanning over two decades, Hitoshi Okada has worked with leading research institutions and tech companies to develop cutting-edge solutions that have revolutionized various industries.

Collaborations: Throughout his career, Hitoshi Okada has collaborated with top engineers, scientists, and designers, fostering a culture of innovation and creativity that has led to the successful development of numerous groundbreaking technologies.

Conclusion: Hitoshi Okada'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 the next generation of inventors.

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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