Location History:
- Yamaguchi, JP (2006 - 2010)
- Iwakuni, JP (1999 - 2011)
- Chiyoda-ku, JP (2022)
- Osaka, JP (2022 - 2024)
Company Filing History:
14 out of 1,586 
2 out of 6 
1 out of 1,435 
Years Active: 1999-2025
Title: Hiroaki Kuwahara: An Innovative Force in Thermosetting Resins
Introduction
Hiroaki Kuwahara, an accomplished inventor based in Iwakuni, Japan, has made significant contributions to the field of materials science, particularly through his innovative work on thermosetting resin compositions and related products. With a total of 14 patents to his name, Kuwahara is recognized for his advancements that enhance the efficiency and performance of composite materials.
Latest Patents
Among his latest inventions are several noteworthy patents focused on thermosetting resin technology. One of his recent patents is a thermosetting resin composition characterized by the inclusion of a bismaleimide compound and a triazine compound with a diaminotriazine structure. This innovation aims to improve the durability and thermal stability of resin materials.
Another significant patent pertains to the production of a prepreg, which involves a reinforcing fiber substrate composed of a reinforcing fiber and an epoxy resin composition. This prepreg integrates an amine-based curing agent and polyamide particles to enhance the properties of fiber-reinforced composite materials. The unique aspect of this invention is the incorporation of an epoxy group either at the surface of the polyamide particle or within the epoxy resin composition, which leads to improved interaction and performance of the composite materials.
Career Highlights
Kuwahara has worked with several prominent companies, including Teijin Limited and Teijin Techno Products Limited. His career in these organizations has allowed him to apply his inventive ideas and bring to fruition some of the most advanced materials in use today. His work has not only contributed to his personal accolades but has also pushed the boundaries of material science within his field.
Collaborations
Throughout his career, Kuwahara has collaborated with notable professionals, including Shunichi Matsumura and Masayuki Chokai. These partnerships have enriched his research and allowed for a greater exchange of ideas, ultimately leading to successful innovations that benefit the industry.
Conclusion
Hiroaki Kuwahara's dedication to innovation in thermosetting resins has resulted in a remarkable portfolio of patents that showcase his expertise in material science. His work continues to influence advancements in composite materials, highlighting the vital role that inventors like him play in the ongoing development of technology and industry.
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.