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For the Inventor, By the Inventor

Tosu, Japan

Yasuhiro Yamada

This inventor holds 9 USPTO granted patents. Top assignees: Agency of Industrial Science and Technology, Itaru Todorok, Director-General of Agency of Industrial Science and, Koa Oil Company, Limited. Active years: 1976-1993.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yasuhiro Yamada. Retrieved from https://idiyas.com/inventor/yasuhiro-yamada-lpuvtf7q

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

USPTO Granted Patents = 9

% Patents Active = 100.0

Average Co-Inventor Count = 4.0

ph-index = 7

Forward Citations = 76(Granted Patents)


Location History:

  • Tosu, JA (1976 - 1977)
  • Tosu, JP (1980 - 1991)
  • Saga, JP (1993)

Company Filing History:

goldMedal7 out of 1,430 
 
Agency of Industrial Science and Technology
 patents
silverMedal1 out of 1 
 
Itaru Todorok, Director-General of Agency of Industrial Science and
 patent
bronzeMedal1 out of 26 
 
Koa Oil Company, Limited
 patents
4. 1 out of 1 
 
Koa Oil Company, Limited Director General, Agency of Industrial Science
 patent
5. 1 out of 122 
 
Maruzen Petrochemical Company, Limited
 patents
6. 1 out of 372 
 
Tanaka Kikinzoku Kogyo K.k.
 patents
where one patent can have more than one assignee

Years Active: 1976-1993

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9 patents (USPTO):Explore Patents
1. 5188894 - Composite carbon fiber and process for preparing same (1993-02-23),
2. 5017358 - Preparation of elastic graphite materials (1991-05-21),
3. 4873071 - Graphite structures and method for production thereof (1989-10-10),
4. 4818449 - Process to prevent crack formation in the production of carbon fibers (1989-04-04),
5. 4606808 - Method for the preparation of pitches for spinning carbon fibers (1986-08-19),
6. 4590055 - Pitch-based carbon fibers and pitch compositions and precursor fibers (1986-05-20),
7. 4189373 - Process for the production of ashless liquid fuels (1980-02-19),
8. 4040941 - Process for liquefying coal (1977-08-09),
9. 3956436 - Process for producing micro-beads and product containing the same (1976-05-11),

Title: Inventor Yasuhiro Yamada

Introduction: Yasuhiro Yamada is a renowned inventor hailing from Tosu, Japan, known for his groundbreaking contributions to various technological fields.

Latest Patents: Yasuhiro Yamada 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, Yasuhiro Yamada has worked with leading research institutions and universities to develop cutting-edge solutions that have revolutionized the way we approach modern challenges.

Collaborations: Throughout his career, Yasuhiro Yamada has collaborated with top companies and inventors worldwide, fostering a culture of innovation and knowledge sharing that has led to significant advancements in the field.

Conclusion: Yasuhiro Yamada's passion for innovation and his relentless pursuit of excellence continue to inspire the next generation of inventors and researchers, leaving a lasting impact on the world of technology.

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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