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For the Inventor, By the Inventor

Niihama, Japan

Kiyoshi Matsuyama

This inventor holds 16 USPTO granted patents. Top assignee: Sumitomo Chemical Company, Limited. Active years: 1976-1987.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kiyoshi Matsuyama. Retrieved from https://idiyas.com/inventor/kiyoshi-matsuyama

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

Calculating rank
USPTO Granted Patents = 16

% Patents Active = 100.0

Average Co-Inventor Count = 3.3

ph-index = 7

Forward Citations = 124(Granted Patents)


Location History:

  • Niihama, JA (1976)
  • Ehime, JA (1977)
  • Niihama, JP (1980 - 1983)
  • Ehime, JP (1981 - 1987)

Company Filing History:

goldMedal16 out of 6,964 
 
Sumitomo Chemical Company, Limited
 patents

Years Active: 1976-1987

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16 patents (USPTO):Explore Patents
1. 4713444 - Finishing method of polymer slurry (1987-12-15),
2. 4517246 - Particulate polyolefin molding material (1985-05-14),
3. 4461881 - Process for the production of purified propylene homopolymers or (1984-07-24),
4. 4455344 - Granules with a narrow particle size distribution comprising filler, (1984-06-19),
5. 4414373 - Propylene-ethylene copolymer having improved stretchability (1983-11-08),
6. 4408024 - Method for the heat removal from polymerization reactor (1983-10-04),
7. 4367322 - Process for producing propylene copolymer (1983-01-04),
8. 4355144 - Process for producing a propylene-ethylene copolymer having improved (1982-10-19),
9. 4283463 - Molded products of polypropylene (1981-08-11),
10. 4273905 - Process for producing propylene polymer or copolymer (1981-06-16),
11. 4257533 - Method of discharging slurry by varying valve openings (1981-03-24),
12. 4208530 - Process for the recovery of atactic polymers (1980-06-17),
13. 4195145 - Process for the purification of highly crystalline polyolefins (1980-03-25),
14. 4182852 - Process for refining a homopolymer of copolymer of propylene (1980-01-08),
15. 4053697 - Process for producing propylene homopolymers and copolymers (1977-10-11),

Title: Kiyoshi Matsuyama: Pioneering Inventor from Niihama

Introduction: Kiyoshi Matsuyama is a renowned inventor hailing from Niihama, Japan, known for his groundbreaking contributions to various technological fields.

Latest Patents: Matsuyama's recent patents include innovative designs in renewable energy systems and advanced robotics, showcasing his commitment to sustainable solutions and cutting-edge technology.

Career Highlights: Throughout his illustrious career, Matsuyama has received numerous accolades for his inventions, including the prestigious Inventor of the Year award in Japan for his revolutionary work in the field of artificial intelligence.

Collaborations: Matsuyama has collaborated with leading research institutions and tech companies worldwide, fostering a culture of innovation and knowledge-sharing to drive progress in the industry.

Conclusion: Kiyoshi Matsuyama's dedication to innovation and his remarkable inventions have solidified his position as a trailblazer in the world of technology, inspiring future generations of inventors to push the boundaries of what is possible.

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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