This inventor holds 8 USPTO granted patents. Top assignees: Daikin Kogyo Co., Ltd., Iwao Tabushi, Kureha Kagaku Kogyo Kabushiki Kaisha. Active years: 1979-1989.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Maidashi, Higashi-ku, Fukuoka-shi, Fukuoka-ken, JP (1979)
- Sakyo-ku, Kyoto-shi, Kyoto-fu, JP (1979)
- Kyoto, JP (1979 - 1989)
Company Filing History:
1 out of 213 
1 out of 2 
1 out of 776 
Years Active: 1979-1989
Title: Iwao Tabushi: Innovator in Liquid Crystal Technology
Introduction
Iwao Tabushi is a notable inventor based in Kyoto, Japan. He has made significant contributions to the field of liquid crystal technology, holding a total of 8 patents. His innovative work has paved the way for advancements in memory devices and cellulose solutions.
Latest Patents
Among his latest patents is a method and device of memory using liquid crystal. This invention involves a viologen that exhibits liquid crystalline properties. By applying a voltage greater than 0.7 V to the viologen, the electric conductivity changes, allowing the resultant state to be utilized as a memorized state. Another significant patent is a method for dissolving cellulose in organic solvents. This method prepares a cellulose solution by dissolving cellulose in a mixed solvent primarily composed of an aliphatic quaternary ammonium halide and an organic solvent capable of dissolving the halide. The dissolving process is conducted within a heating temperature range of 50°C to 100°C, with a preference for 70°C to 95°C, to maintain a high degree of polymerization of the cellulose.
Career Highlights
Throughout his career, Iwao Tabushi has worked with various research institutions, including the Tachikawa Research Institute. His work has been instrumental in advancing the understanding and application of liquid crystal technologies.
Collaborations
Iwao has collaborated with notable individuals in his field, including Hidefumi Kato and Yasuhisa Kuroda. Their combined expertise has contributed to the success of various projects and innovations.
Conclusion
Iwao Tabushi's contributions to liquid crystal technology and cellulose solutions highlight his role as a significant inventor. His patents reflect a commitment to innovation and advancement in these fields.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile