This inventor holds 4 USPTO granted patents and 2 published patent applications and 3 EPO patents. Top assignee: Kuraray Co., Ltd.. Active years: 2019-2023.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Osaka, JP (2019)
- Okayama, JP (2022)
- Kurashiki, JP (2023)
Company Filing History:
Years Active: 2019-2023
Title: Yasuhiro Tajima: Innovator in Polyvinyl Alcohol-Based Resins
Introduction
Yasuhiro Tajima is a prominent inventor based in Osaka, Japan. He has made significant contributions to the field of materials science, particularly in the development of polyvinyl alcohol-based resins. With a total of 4 patents to his name, Tajima's work has had a notable impact on various industrial applications.
Latest Patents
Tajima's latest patents include innovative solutions such as a polyvinyl alcohol-based resin and a plugging agent for underground treatment. The polyvinyl alcohol-based resin he developed exhibits an excellent plugging effect, characterized by specific swelling and solubility properties. This resin is designed to have a degree of swelling when immersed in water at 40° C. for 30 minutes and a solubility when immersed in water at 65° C. for 5 hours, satisfying the condition of degree of swelling/solubility ≥ 3.0. Additionally, he has created particulate polyvinyl alcohol plugging agents that serve as diverting agents and loss circulation materials. These agents are water-soluble and maintain stability even in acidic environments, making them particularly useful in subsurface oil production operations.
Career Highlights
Tajima is currently employed at Kuraray Co., Ltd., a company known for its innovative chemical products. His work at Kuraray has allowed him to focus on advancing the applications of polyvinyl alcohol in various industries. His expertise in this area has positioned him as a key figure in the development of new materials.
Collaborations
Throughout his career, Tajima has collaborated with notable colleagues, including Ghebrehiwet Ghebremeskel and Mitsuaki Yamamoto. These collaborations have further enhanced his research and development efforts, leading to the successful creation of new products and technologies.
Conclusion
Yasuhiro Tajima's contributions to the field of polyvinyl alcohol-based resins demonstrate his innovative spirit and commitment to advancing material science. His patents reflect a deep understanding of the properties and applications of these materials, making him a valuable asset in his industry.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile