Company Filing History:
Years Active: 2002-2008
Title: **Toshio Kawata: Innovator in Organic Dye Compounds**
Introduction
Toshio Kawata is an accomplished inventor based in Okayama, Japan, known for his significant contributions to the field of organic dye compounds. With a portfolio of seven patents, Kawata has been instrumental in advancing technologies related to optical materials, particularly in the area of dyes and their applications.
Latest Patents
Kawata's latest innovations include two notable patents. The first patent focuses on **cyanine dyes**, presenting organic dye compounds characterized by their absorption maxima across a range from the ultraviolet region to a relatively short wavelength in the visible spectrum. This invention encompasses specific monomethine cyanine dyes that serve as light absorbents and optical recording media. The manufacturing process involves a reaction between a quaternary ammonium salt of a nitrogen atom-containing heterocyclic compound with a reactive methyl group and another quaternary ammonium salt featuring an appropriate leaving group.
The second patent introduces **styryl dyes**, which exhibit absorption maxima at wavelengths of 400 nm or less. These dyes are sensitive to laser beams of 450 nm or shorter wavelengths. The patent details a process for producing styryl dyes by reacting a quaternary ammonium salt of a nitrogen atom-containing heterocyclic compound with an active methyl or methylene group with an aldehyde compound.
Career Highlights
Kawata's expertise is leveraged at his company, Kabushiki Kaisha Hayashibara Seibutsu Kagaku Kenkyujo, where he has continued to innovate and develop new dye compounds. His contributions have played a critical role in the advancement of optical technologies and materials.
Collaborations
Throughout his career, Kawata has collaborated with notable colleagues such as Shigeo Yasui and Chiaki Kasada. Together, they have contributed to various projects that reflect their shared commitment to innovation in the field of chemistry and materials science.
Conclusion
Toshio Kawata stands out as a key inventor in the realm of organic dye compounds. His seven patents highlight his dedication to pushing the boundaries of technology and developing materials that enhance optical applications. His ongoing work at Kabushiki Kaisha Hayashibara Seibutsu Kagaku Kenkyujo and collaborations with other experts further solidify his reputation as a leader in his field.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.