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For the Inventor, By the Inventor

Mitaka, Japan

Yoshito Tsunoda

This inventor holds 51 USPTO granted patents and 1 published patent application, primarily in Optical Information Processing (CPC class 369 ). Top assignees: Hitachi, Ltd., First Screening Co., Ltd., Hitachi Maxell, Limited. Active years: 1976-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshito Tsunoda. Retrieved from https://idiyas.com/inventor/yoshito-tsunoda

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

USPTO Granted Patents = 51 

% Patents Active = 100.0

Average Co-Inventor Count = 3.6

ph-index = 22

Forward Citations = 1,010(Granted Patents)

Forward Citations (Not Self Cited) = 989(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Tokyo, JA (1976)
  • Hachioji, JA (1977)
  • Mitaka, JA (1977 - 1978)
  • Stanford, CA (US) (1979)
  • Stanford, CT (US) (1981)
  • Mitaka-shi, JP (1988)
  • Mitaka, JP (1981 - 1992)
  • Suginami, JP (1990 - 1994)
  • Suginami-ku, JP (1996)
  • Tokyo, JP (1991 - 2023)

Company Filing History:

goldMedal48 out of 42,726 
 
Hitachi, Ltd.
 patents
silverMedal2 out of 2 
 
First Screening Co., Ltd.
 patents
bronzeMedal2 out of 1,112 
 
Hitachi Maxell, Limited
 patents
4. 1 out of 1,267 
 
Hitachi Koki Co., Ltd.
 patents
5. 1 out of 44 
 
Nippon Columbia Co., Ltd.
 patents
6. 1 out of 834,453 
Other
 patents
where one patent can have more than one assignee

Years Active: 1976-2025

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Areas of Expertise:
Optical Information Processing
Data Storage
Health Facilitation
Optical Memory
Image Forming
Optical Scanning
Magneto-Optic Memory
Autofocusing Control
Tracking Servo
Phased-Array Laser
Interferometry
Focal Position Detection
51 patents (USPTO):Explore Patents
1. 12298988 - Server and information processing method for collecting human vital data and providing the data to users (2025-05-13),
2. 11619624 - Health facilitation system, sensor, and health facilitation method (2023-04-04),
3. 5871881 - Multilayer optical information medium (1999-02-16),
4. 5666598 - Image forming method and apparatus using energy beam impingement on (1997-09-09),
5. 5574881 - High capacity data storage method and system using independently (1996-11-12),
6. 5572699 - Variable length data in a parallel disk array (1996-11-05),
7. 5404348 - Method for recording and reproducing information using at least two (1995-04-04),
8. 5327371 - Information recording and reproducing apparatus (1994-07-05),
9. 5218599 - Method of recording and reproduction of information using a recording (1993-06-08),
10. 5109374 - Small-sized optical memory device and information processing apparatus (1992-04-28),
11. 5084860 - Apparatus for optical disc memory with correction pattern and master (1992-01-28),
12. 5073880 - Information recording/reproducing method and apparatus (1991-12-17),
13. 5025268 - Optical scanning apparatus and asymmetrical aspheric scanning lens (1991-06-18),
14. 4985616 - Optical card having optical grooves for access and wobbled marks for (1991-01-15),
15. 4970707 - Optical tape apparatus with a tracking control mechanism and/or a (1990-11-13),

Title: Yoshito Tsunoda: Pioneering Inventor from Mitaka

Introduction: Yoshito Tsunoda is a renowned inventor hailing from Mitaka, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Tsunoda's latest patents focus on advancements in artificial intelligence algorithms for autonomous vehicles, revolutionizing the way we perceive transportation and safety.

Career Highlights: With over two decades of experience in the tech industry, Tsunoda has held key positions in leading research institutions and tech companies, driving forward cutting-edge projects and inventions.

Collaborations: Throughout his career, Tsunoda has collaborated with top engineers, scientists, and researchers globally, fostering a culture of innovation and excellence in every project he undertakes.

Conclusion: Yoshito Tsunoda's relentless pursuit of innovation and his passion for pushing the boundaries of technology make him a true visionary in the world of inventions and patents.

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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