Location History:
- Sakado, JP (2000 - 2002)
- Yoshimi-machi, JP (2005)
- Uoshimi-machi, JP (2005)
Company Filing History:
Years Active: 2000-2005
Title: Yumie Okuhara: Innovator in Chemical Processes
Introduction
Yumie Okuhara is a distinguished inventor based in Yoshimi-machi, Japan. She has made significant contributions to the field of chemical processes, particularly in the production of high-purity materials and advanced film technologies. With a total of five patents to her name, her work has garnered attention for its innovative approaches and practical applications.
Latest Patents
One of her notable patents is for the production of high-purity lanthanum isoproxide. This invention provides a reliable starting material for asymmetric synthesis catalysts. The process involves reacting anhydrous lanthanum chloride with potassium isopropoxide in a mixed solvent of isopropanol and toluene. The isopropanol is distilled away, allowing for the replacement of the solvent with toluene. The resulting reaction solution is filtered to yield a transparent filtrate, which is then vacuum-dried to obtain high-purity La(OiPr) with a yield of 77%. The purity levels achieved are impressive, with La content reaching 97 to 103% of the theoretical content.
Another significant patent involves a method for producing PZT films at low substrate temperatures using chemical vapor deposition. This method utilizes a titanium material that can be thermally deposited at a substrate temperature of 450°C or less. The starting materials are vaporized and supplied in a controlled manner, allowing for the production of excellent PZT films under specific conditions.
Career Highlights
Yumie Okuhara is currently associated with Kabushikikaisha Kojundokagaku Kenkyusho, where she continues to innovate in her field. Her work has not only advanced the understanding of chemical processes but has also contributed to the development of new materials that have practical applications in various industries.
Collaborations
Throughout her career, Yumie has collaborated with notable colleagues, including Hidekimi Kadokura and Masamichi Matsumoto. These collaborations have further enriched her research and have led to the successful development of her patented technologies.
Conclusion
Yumie Okuhara's contributions to the field of chemical processes exemplify her innovative spirit and dedication to advancing technology. Her patents reflect a commitment to excellence and a desire to push the boundaries of what is possible in material science.