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For the Inventor, By the Inventor

Ibaraki, Japan

Tomio Iizuka

This inventor holds 9 USPTO granted patents. Top assignee: Hitachi, Ltd.. Active years: 1976-1992.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tomio Iizuka. Retrieved from https://idiyas.com/inventor/tomio-iizuka

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

Calculating rank
USPTO Granted Patents = 9

% Patents Active = 100.0

Average Co-Inventor Count = 5.4

ph-index = 6

Forward Citations = 183(Granted Patents)


Location History:

  • Ibaraki, JA (1976)
  • Naka, JA (1978)
  • Tokaimura, JP (1982 - 1983)
  • Ibaraki, JP (1978 - 1984)
  • Toukai, JP (1992)

Company Filing History:

goldMedal9 out of 42,743 
 
Hitachi, Ltd.
 patents

Years Active: 1976-1992

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9 patents (USPTO):Explore Patents
1. 5153704 - Semiconductor device using annealed bonding wire (1992-10-06),
2. 4478363 - Method of production of composite billet for fuel cladding tube (1984-10-23),
3. 4367017 - Laser beam reflection system (1983-01-04),
4. 4331286 - Method for pressure bonding metal members by utilizing eutectic reaction (1982-05-25),
5. 4144992 - Method for controlling an automatic pipe welder (1979-03-20),
6. 4129801 - Cathode for cathode ray tube of directly heating type and process for (1978-12-12),
7. 4114243 - Process for producing cathode for cathode ray tube of directly heating (1978-09-19),
8. 4083719 - Copper-carbon fiber composites and process for preparation thereof (1978-04-11),
9. 3969754 - Semiconductor device having supporting electrode composite structure of (1976-07-13),

Title: The Inventor Tomio Iizuka: Pioneering Innovations in Ibaraki, JP

Introduction: Tomio Iizuka is a renowned inventor hailing from Ibaraki, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Tomio Iizuka holds several patents in the realm of electronics and telecommunications, showcasing his continuous dedication to pushing the boundaries of technological advancements.

Career Highlights: With a career spanning over two decades, Tomio Iizuka has worked tirelessly to develop cutting-edge solutions that have revolutionized the industry. His innovative mindset and passion for creating have led to the successful implementation of numerous projects.

Collaborations: Throughout his career, Tomio Iizuka has collaborated with leading tech companies and research institutions, fostering a culture of innovation and knowledge-sharing. His ability to work in diverse teams has resulted in the development of groundbreaking technologies.

Conclusion: Tomio Iizuka's impact on the world of inventions and innovations is truly remarkable, and his legacy continues to inspire aspiring inventors globally.

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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