This inventor holds 3 USPTO granted patents. Top assignee: Bridgestone Corporation. Active years: 1990-1996.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 1990-1996
Title: Kuniaki Yasunaga: Innovator in Polyurethane Technologies
Introduction
Kuniaki Yasunaga is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of polyurethane technologies, holding a total of 3 patents. His work focuses on innovative solutions that enhance the performance and functionality of materials used in various applications.
Latest Patents
One of Yasunaga's latest patents is an ink retainer. This invention comprises a flexible polyurethane foam prepared by reacting a polyether polyol with a polyisocyanate. The polyol includes at least 20% by weight of a polymeric polyol having styrene and/or acrylonitrile grafted thereto. The foam contains at least 20 cells per inch and is inserted into a container at a specific compression ratio, ensuring a stable and constant supply of ink while being resistant to ink attack.
Another significant patent is a method for producing antistatic polyurethane resin. This method involves the reaction of a compound with at least two active hydrogen atoms with an organic isocyanate in the presence of complex compounds that are liquid at room temperature. This innovative approach allows for a uniform formulation of antistatic agents within the raw materials of polyurethane resins, resulting in a highly effective antistatic effect.
Career Highlights
Kuniaki Yasunaga is currently employed at Bridgestone Corporation, where he continues to develop and refine his innovative ideas. His work has not only contributed to the company's success but has also advanced the field of polyurethane technology.
Collaborations
Throughout his career, Yasunaga has collaborated with notable colleagues, including Shigeru Ueno and Yasuo Kamimura. These collaborations have fostered a creative environment that encourages the development of groundbreaking technologies.
Conclusion
Kuniaki Yasunaga is a distinguished inventor whose work in polyurethane technologies has led to significant advancements in the industry. His innovative patents demonstrate his commitment to enhancing material performance and functionality.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile