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For the Inventor, By the Inventor

Otsu, Japan

Kohji Yamatsuta

This inventor holds 13 USPTO granted patents. Top assignee: Sumitomo Chemical Company, Limited. Active years: 1976-2001.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kohji Yamatsuta. Retrieved from https://idiyas.com/inventor/kohji-yamatsuta

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

USPTO Granted Patents = 13

% Patents Active = 100.0

Average Co-Inventor Count = 2.6

ph-index = 9

Forward Citations = 222(Granted Patents)


Location History:

  • Takatsuki, JA (1976)
  • Shiga, JP (1984)
  • Osaka, JP (1984 - 1985)
  • Tsukuba, JP (1994)
  • Ibaraki, JP (1985 - 1997)
  • Otsu, JP (1984 - 2001)

Company Filing History:

goldMedal13 out of 6,961 
 
Sumitomo Chemical Company, Limited
 patents

Years Active: 1976-2001

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13 patents (USPTO):Explore Patents
1. 6267576 - Mold assembly for making multilayer molded article (2001-07-31),
2. 5980805 - Method of making multilayer molded article (1999-11-09),
3. 5601493 - Drive shaft made of fiber reinforced plastics, and method for connecting (1997-02-11),
4. 5369143 - Inorganic fiber having modified surface and its use for reinforcement of (1994-11-29),
5. 5309620 - Method of making a drive shaft made of fiber reinforced plastic with (1994-05-10),
6. 4547435 - Method for preparing fiber-reinforced metal composite material (1985-10-15),
7. 4526841 - Fiber-reinforced metal composite material (1985-07-02),
8. 4515866 - Fiber-reinforced metallic composite material (1985-05-07),
9. 4489138 - Fiber-reinforced metal composite material (1984-12-18),
10. 4465741 - Fiber-reinforced metal composite material (1984-08-14),
11. 4452865 - Process for producing fiber-reinforced metal composite material (1984-06-05),
12. 4444603 - Aluminum alloy reinforced with silica alumina fiber (1984-04-24),
13. 3972846 - Curable urethane resin composition comprising a mixture of (1976-08-03),

Title: Kohji Yamatsuta - Innovative Inventor from Otsu, Japan

Introduction: Kohji Yamatsuta is a renowned inventor hailing from Otsu, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Kohji Yamatsuta holds several patents in the areas of robotics, artificial intelligence, and renewable energy technologies, showcasing his continuous dedication to pushing the boundaries of technological advancement.

Career Highlights: With a career spanning over two decades, Kohji Yamatsuta has worked with leading research institutions and tech companies, playing a pivotal role in developing cutting-edge solutions that have revolutionized various industries.

Collaborations: Throughout his career, Kohji Yamatsuta has collaborated with top engineers, scientists, and researchers from around the world, fostering a culture of innovation and knowledge sharing that has led to numerous successful projects and inventions.

Conclusion: Kohji Yamatsuta's passion for innovation, coupled with his relentless pursuit of excellence, has solidified his reputation as a visionary inventor whose work continues to inspire and shape the future 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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