This inventor holds 2 USPTO granted patents, plus 1 CIPO patent. Top assignees: Mitsubishi Chemical Industries Limited, Mitsubishi Kasei Corporation, Yoshino Gpysum Company, Ltd.. Active years: 1988-1992.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
1 out of 614 
1 out of 499 
1 out of 1 Years Active: 1988-1992
Title: Yasoji Ozawa: Inventor of Water-Repellent Compositions.
Introduction
Yasoji Ozawa is an inventor associated with Machida, Japan. His work includes patents for water-repellent compositions, and he holds 2 patents.
Latest Patents
Ozawa’s listed patents focus on water-repellent materials:
- **Water Repellent and Water Repellent Gypsum Composition.** This patent describes a water repellent made from components emulsified in water, as well as a gypsum composition incorporating water-repellent properties.
- **Water Repellent Composition.** This patent describes an emulsion made by combining a wax with a melting point of 40°C to 90°C and an olefin-maleic anhydride derivative in water, using a water-soluble alkaline compound and/or a nonionic emulsifier.
Career Highlights
Ozawa’s listed professional affiliations include Mitsubishi Chemical Industries Limited and Yoshino Gypsum Company, Ltd. His patent work reflects an emphasis on water-repellent formulations and their potential use in gypsum materials.
Collaborations
Toru Tagawa and Katsuhiko Kuroda are identified as Ozawa’s coworkers.
Conclusion
Yasoji Ozawa’s two patents highlight his contributions to water-repellent compositions, including formulations relevant to gypsum materials.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile