Location History:
- Gunma, JP (1989)
- Ojimamachi, JP (1992 - 1997)
- Gunma-ken, JP (1997)
Company Filing History:
10 out of 8,776 
6 out of 6 
6 out of 141 Years Active: 1989-1997
Title: Toshitake Nagai: Innovator in Refrigeration Technology
Introduction
Toshitake Nagai is a notable inventor based in Ojimamachi, Japan, with a remarkable portfolio of ten patents to his name. His work primarily focuses on advancements in heat exchange and refrigeration technologies, pushing the boundaries of efficiency and functionality in these critical systems.
Latest Patents
Two of his latest patents highlight his commitment to innovation in this field. The first, titled "Heat exchanger and cooling apparatus mounted with the same," aims to address the issue of unbalanced refrigerant flow in heat exchangers. By designing a refrigerant conduit that is divided into multiple sets of parallel conduits, Nagai enhances heat exchanging efficiency significantly.
The second, "Refrigeration cycle using six-way change-over valve," relates to a refrigeration cycle that includes a compressor, indoor heat exchanger, expansion, and outdoor heat exchanger. This innovative system features a six-way change-over valve that selectively switches the refrigerant passage, allowing for optimal flow in both cooling and heating operation cycles.
Career Highlights
Throughout his career, Toshitake Nagai has contributed to significant technological progress while working with prominent companies such as Sanyo Electric Co., Ltd. and Miura Dolphins Co., Ltd. His tenure at these organizations played a crucial role in the development and refinement of refrigeration technologies.
Collaborations
Nagai is known for his collaborative efforts with notable professionals in the field, including Kazuo Hirano and Taiji Kambayashi. Their combined expertise contributes to the innovative solutions developed in the realm of refrigeration and heat exchange systems.
Conclusion
Toshitake Nagai stands out as a pioneer in refrigeration technology, recognized for his inventive contributions and collaborative endeavors. His patents continue to influence the industry, representing a significant leap towards improved efficiency and performance in heat exchange systems. The impact of his work will certainly resonate within the sector for years to come.
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.