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For the Inventor, By the Inventor

Ichihara, Japan

Tatsuo Hamanaka

This inventor holds 17 USPTO granted patents. Top assignees: Sumitomo Chemical Company, Limited, Nihon Plast Co., Ltd., Tanabe Chemical Industrial Inc.. Active years: 1990-2002.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tatsuo Hamanaka. Retrieved from https://idiyas.com/inventor/tatsuo-hamanaka

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

USPTO Granted Patents = 17

% Patents Active = 94.1

Average Co-Inventor Count = 3.6

ph-index = 7

Forward Citations = 124(Granted Patents)


Location History:

  • Chiba, JP (1990 - 2000)
  • Ichihara, JP (1994 - 2002)

Company Filing History:

goldMedal15 out of 6,960 
 
Sumitomo Chemical Company, Limited
 patents
silverMedal2 out of 227 
 
Nihon Plast Co., Ltd.
 patents
bronzeMedal2 out of 3 
 
Tanabe Chemical Industrial Inc.
 patents
4. 2 out of 834,453 
Other
 patents
where one patent can have more than one assignee

Years Active: 1990-2002

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17 patents (USPTO):Explore Patents
1. 6500561 - Automobile weatherstripping (2002-12-31),
2. 6441093 - Thermoplastic elastomer composition for calender-molding and sheets prepared therefrom (2002-08-27),
3. 6210797 - Airbag storing casing (2001-04-03),
4. 6106750 - Laminated skin material, molding method and laminated molded article (2000-08-22),
5. 6060551 - Air bag cover for passenger (2000-05-09),
6. 5902674 - Olefine thermoplastic elastomer sheet (1999-05-11),
7. 5847052 - Process for producing thermoplastic elastomer composition (1998-12-08),
8. 5691017 - Airbag storing casing (1997-11-25),
9. 5611565 - Airbag storing casing (1997-03-18),
10. 5602203 - Olefin resin composition (1997-02-11),
11. 5308700 - Thermoplastic elastomer powder for powder molding, powder molding method (1994-05-03),
12. 5308699 - Thermoplastic elastomer powder for powder slush molding powder slush (1994-05-03),
13. 5298211 - Method for producing thermoplastic elastomer composition (1994-03-29),
14. 5187224 - Thermoplastic elastomer composition which has a shore a hardness of less (1993-02-16),
15. 5180769 - Process for producing a thermoplastic elastomer composition (1993-01-19),

Title: Tatsuo Hamanaka: Pioneering Inventor from Ichihara

Introduction: Tatsuo Hamanaka is a renowned inventor hailing from Ichihara, Japan, known for his groundbreaking contributions to the field of technology and innovation.

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

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

Collaborations: Throughout his career, Tatsuo Hamanaka has collaborated with top scientists, engineers, and researchers from around the world, fostering a culture of innovation and knowledge sharing to drive progress in the field of technology.

Conclusion: Tatsuo Hamanaka's passion for innovation, coupled with his relentless pursuit of excellence, has solidified his reputation as a visionary inventor whose work continues to inspire future generations of innovators.

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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