Location History:
- Kawasaki, JP (1987)
- Yokohama, JP (1991 - 2011)
- Fukuoka, JP (2006 - 2020)
Company Filing History:
5 out of 2,346 
2 out of 499 
1 out of 63 
Years Active: 1987-2020
Title: Hirohisa Kubota: Innovator in Chelating Resins and Gas Adsorbents
Introduction
Hirohisa Kubota is a prominent inventor based in Yokohama, Japan. He holds a total of 10 patents, showcasing his significant contributions to the fields of chemistry and materials science. His innovative work primarily focuses on chelating resins and gas adsorbents, which have important applications in various industries.
Latest Patents
One of his latest patents is for an iminodiacetate chelating resin and its manufacturing method. This invention relates to a chelating resin that contains a water amount ranging from 50 to 75%. The volume ratio of Na form to H form is specified to be between 1.4 and 1.8. Additionally, the patent describes a method for producing this resin, utilizing an alcohol as a solvent for the amination reaction of a chloromethylated styrene crosslinked copolymer with iminodiacetonitrile. Sodium iodide and/or potassium iodide are also mentioned as catalysts for the amination reaction.
Another notable patent involves a gas adsorbent designed to effectively adsorb noxious gas components in cigarette smoke. This gas adsorbent is engineered to maintain sufficient gas adsorptivity when exposed to high flow rates, such as those encountered in cigarette filters. It also aims to minimize the release of harmful odor components and impurities that could adversely affect health.
Career Highlights
Hirohisa Kubota has had a distinguished career, working with leading companies in the chemical industry. He has been associated with Mitsubishi Chemical Corporation and Mitsubishi Kasei Corporation, where he has contributed to various innovative projects and research initiatives.
Collaborations
Throughout his career, Kubota has collaborated with notable colleagues, including Junya Watanabe and Hideaki Kiniwa. These collaborations have further enriched his research and development efforts, leading to advancements in his field.
Conclusion
Hirohisa Kubota's work in the development of chelating resins and gas adsorbents highlights his innovative spirit and dedication to improving industrial applications. His patents reflect a commitment to addressing environmental and health concerns through scientific advancements.
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.