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For the Inventor, By the Inventor

Seattle, WA, United States of America

Katashi Oita

This inventor holds 6 USPTO granted patents. Top assignee: Weyerhaeuser Company Limited. Active years: 1976-1981.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Katashi Oita. Retrieved from https://idiyas.com/inventor/katashi-oita

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 = 2.2

ph-index = 3

Forward Citations = 48(Granted Patents)


Company Filing History:

goldMedal6 out of 664 
 
Weyerhaeuser Company Limited
 patents

Years Active: 1976-1981

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6 patents (USPTO):Explore Patents
1. 4264671 - Phenol formaldehyde resoles and laminates (1981-04-28),
2. 4110431 - Wet weather resistant binder composition for adhering a plant treatment (1978-08-29),
3. 4065577 - Method for using a ruminant repellent comprising aliphatic aldehydes (1977-12-27),
4. 4065576 - Method for using a ruminant repellent comprising oxidation precursors of (1977-12-27),
5. 3980773 - Ruminant repellent from fresh lipoidal material (1976-09-14),
6. 3962425 - Ruminant repellent from enzymatically putrefied lipoidal material (1976-06-08),

Title: Katashi Oita: Innovator in Resin Technology

Introduction

Katashi Oita is a notable inventor based in Seattle, WA, recognized for his contributions to resin technology. He holds a total of 6 patents that showcase his innovative approaches in the field. His work has significantly impacted the development of materials with enhanced properties.

Latest Patents

One of Oita's latest patents involves the creation of low-color or white phenol formaldehyde resoles and laminates. This invention focuses on dilutable condensation products of formaldehyde and phenol, characterized by specific carbon-13 nuclear magnetic resonance spectra. The resin produced can be utilized to create resin-fiberglass laminates that exhibit strengths comparable to polyester or epoxy laminates, along with exceptional fire resistance and low smoke evolution when exposed to flame. Another significant patent is a wet weather resistant binder composition designed for adhering plant treatment additives to foliage. This innovative binder composition allows for effective application of insecticides and pesticides, ensuring they remain adhered to plants even in wet conditions.

Career Highlights

Katashi Oita is currently associated with Weyerhaeuser Company Limited, where he continues to develop and refine his innovative technologies. His work has been instrumental in advancing the applications of resin materials in various industries.

Collaborations

Oita has collaborated with notable colleagues such as George T. Tiedeman and John H. Oh, contributing to the advancement of their shared projects and innovations.

Conclusion

Katashi Oita's contributions to resin technology and his innovative patents reflect his dedication to enhancing material properties and applications. His work continues to influence the industry and pave the way for future advancements.

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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