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For the Inventor, By the Inventor

Ichihara, Japan

Shizuo Narisawa

This inventor holds 13 USPTO granted patents. Top assignee: Sumitomo Chemical Company, Limited. Active years: 1977-1995.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shizuo Narisawa. Retrieved from https://idiyas.com/inventor/shizuo-narisawa

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 = 3.7

ph-index = 11

Forward Citations = 553(Granted Patents)


Location History:

  • Ichihara, JA (1977 - 1978)
  • Chiba, JP (1991 - 1992)
  • Ichihara, JP (1978 - 1995)

Company Filing History:

goldMedal13 out of 6,964 
 
Sumitomo Chemical Company, Limited
 patents

Years Active: 1977-1995

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13 patents (USPTO):Explore Patents
1. 5446072 - Emulsion compositions for flameproof foam sheet (1995-08-29),
2. 5110856 - Vinyl acetate-ethylene copolymer emulsion and process for producing the (1992-05-05),
3. 5070134 - Vinyl acetate-ethylene copolymer emulsion and process for producing the (1991-12-03),
4. 4434257 - Cement composition (1984-02-28),
5. 4299941 - Process for producing aqueous emulsions of vinyl chloride/vinyl (1981-11-10),
6. 4220738 - Process for producing block copolymer from conjugated diene and vinyl (1980-09-02),
7. 4128518 - Pressure-sensitive adhesive and vinyl acetate-ethylene copolymer (1978-12-05),
8. 4122134 - Method for producing transparent block copolymer resin (1978-10-24),
9. 4094849 - Process for producing aqueous dispersion of ethylene-vinyl acetate (1978-06-13),
10. 4089913 - Process for producing transparent block copolymer resin (1978-05-16),
11. 4075285 - Rubber-modified polystyrene resin composition (1978-02-21),
12. 4073831 - Thermoplastic resin composition (1978-02-14),
13. 4054616 - Process for producing transparent block copolymer resins (1977-10-18),

Title: Discovering the Innovations of Shizuo Narisawa

Introduction

Shizuo Narisawa, an accomplished inventor based in Ichihara, Japan, has made significant contributions to the field of materials science, particularly in the development of advanced emulsion compositions. With a total of 13 patents to his name, he has been instrumental in enhancing the properties of numerous materials used in various applications.

Latest Patents

Among his recent inventions, Narisawa has developed two notable patents. The first is an emulsion composition for flameproof foam sheets, designed to improve fire resistance. This composition includes specific components (A), (B), and (C), ensuring optimal performance through careful adjustments in their ratios. The second patent focuses on a vinyl acetate-ethylene copolymer emulsion, detailing the composition of the copolymer and an emulsifying dispersant. This innovative emulsion comprises 10 to 40% by weight of an ethylene unit and 90 to 60% by weight of a vinyl acetate unit, along with precise quantities of surfactants to enhance its stability and effectiveness.

Career Highlights

Shizuo Narisawa has spent his career at Sumitomo Chemical Company, Limited, an influential organization known for its innovative contributions to the chemical industry. His work there has allowed him to develop and refine his inventions, pushing the boundaries of what is possible in material science.

Collaborations

Throughout his professional journey, Narisawa has collaborated with distinguished colleagues such as Takeo Oyamada and Tamotsu Miki. These partnerships have fostered a rich environment of shared ideas and innovations, enabling groundbreaking advancements in their respective fields.

Conclusion

Shizuo Narisawa continues to be a driving force in the realm of materials innovation, showcasing the power of creative thinking and collaboration. His contributions not only enhance the products developed by Sumitomo Chemical Company but also represent substantial advancements in technology that can benefit various industries. As he continues to innovate, the impact of his work will undoubtedly be felt for years to come.

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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