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For the Inventor, By the Inventor

Sagamihara, Japan

Yoshimasa Zama

This inventor holds 6 USPTO granted patents. Top assignees: Nippon Steel Corporation, Toyo Boseki Kabushiki Kaisha. Active years: 1983-1994.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshimasa Zama. Retrieved from https://idiyas.com/inventor/yoshimasa-zama

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

USPTO Granted Patents = 6

% Patents Active = 100.0

Average Co-Inventor Count = 5.1

ph-index = 6

Forward Citations = 129(Granted Patents)


Location History:

  • Sagamihara, JP (1983 - 1989)
  • Futtsu, JP (1994)

Company Filing History:

goldMedal6 out of 3,713 
 
Nippon Steel Corporation
 patents
silverMedal2 out of 789 
 
Toyo Boseki Kabushiki Kaisha
 patents
where one patent can have more than one assignee

Years Active: 1983-1994

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6 patents (USPTO):Explore Patents
1. 5288813 - Viscoelastic resin composition or vibration damping material (1994-02-22),
2. 4859523 - Viscoelastic resin for vibration damping material (1989-08-22),
3. 4749623 - Composite metal sheet with organic and metal intermediate layer (1988-06-07),
4. 4413657 - Exhaust pipe with vibration damping (1983-11-08),
5. 4410013 - Composite dual tubing (1983-10-18),
6. 4404992 - Composite dual tubing (1983-09-20),

Title: **Yoshimasa Zama: Innovator in Vibration Damping Technologies**

Introduction

Yoshimasa Zama, an inventor based in Sagamihara, Japan, has made significant contributions to the field of materials science. With a prolific portfolio of six patents, he specializes in developing advanced viscoelastic materials for vibration damping applications. His work represents a blend of innovative chemistry and practical engineering solutions.

Latest Patents

Among his latest patents, Zama has created a viscoelastic resin composition specifically designed for vibration damping materials. This composition contains a polyester resin with a molecular weight ranging from 5,000 to 50,000 and an acid value between 50 to 500 equivalents per 10^6 grams. Notably, at least 80 mol% of the polycarboxylic acid component is derived from aromatic dicarboxylic acids, while at least 30 mol% of the polyol component comprises a specific compound formula that enhances its effectiveness. In addition, he has developed another viscoelastic resin that is a reaction product tailored for similar applications.

Career Highlights

Throughout his career, Yoshimasa Zama has been associated with respected companies in Japan, including Nippon Steel Corporation and Toyo Boseki Kabushiki Kaisha. His work at these organizations has allowed him to apply his innovative ideas to real-world challenges, particularly in the production of materials aimed at noise and vibration reduction.

Collaborations

Zama has collaborated with several distinguished professionals during his career, including Hiroshi Endo and Takesada Sasaki. These collaborations have enriched his research and have played a vital role in the successful development of his patented technologies.

Conclusion

Yoshimasa Zama stands out as a key figure in the innovation landscape of vibration damping materials. His patents not only showcase his inventive spirit but also contribute significantly to advancements in materials that improve safety and comfort in various industries. As he continues to explore new ideas, the impact of his work is likely to resonate well beyond the borders of Japan.

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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