Location History:
- Itami, JA (1976)
- Hyogo, JP (1990)
Company Filing History:
2 out of 15 
1 out of 2,899 
Years Active: 1976-1990
Title: Kazumasa Ohba: Innovator in Liquid Crystal Technology
Introduction
Kazumasa Ohba is a notable inventor based in Hyogo, Japan, recognized for his contributions to the field of liquid crystal technology. He holds two patents that showcase his innovative approach to developing new materials with unique properties.
Latest Patents
Ohba's latest patents include a ferroelectric SmC liquid crystal composition. This invention relates to new optically active pyrimidinylphenyl ester compounds, which possess a liquid crystal phase of cholesteric and/or smectic C* phase. The formula involves various alkyl groups and configurations that enhance the optical properties of the liquid crystals. Another significant patent involves Ureylenethiophanes and their related compounds, which are useful as intermediates in the synthesis of biologically active biotin and its derivatives. These compounds can be produced selectively through reactions with isocyanates or isothiocyanates.
Career Highlights
Throughout his career, Kazumasa Ohba has worked with prominent companies such as Teikoku Chemical Industry Co., Ltd. and Seiko Instruments Inc. His work in these organizations has contributed to advancements in liquid crystal technologies and materials science.
Collaborations
Ohba has collaborated with notable coworkers, including Masanao Matsui and Kenji Mori, who have also made significant contributions to the field of liquid crystals.
Conclusion
Kazumasa Ohba's innovative work in liquid crystal technology and his patents reflect his expertise and dedication to advancing this field. His contributions continue to influence the development of new materials with practical applications.