Location History:
- Kashiwa, JP (2010)
- Tokyo, JP (2001 - 2019)
Company Filing History:
8 out of 140 
1 out of 83 Years Active: 2001-2025
Title: Choiku Yoshikawa: Innovator in Refrigeration Technology
Introduction
Choiku Yoshikawa is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of refrigeration technology, holding a total of eight patents. His innovative designs focus on improving defrost systems, which are crucial for the efficiency of refrigeration units.
Latest Patents
Yoshikawa's latest patents include a defrost system that utilizes an electric heater for thermosiphon. This system features a thermosiphon defrost circuit branched from a circulation line. During defrosting, a CO refrigerant within a fin-tube heat exchanger undergoes a two-phase change, creating a CO circulation path. The system incorporates electromagnetic opening and closing valves that maintain a closed circuit during defrosting. Additionally, a first electric heater is strategically placed above the thermosiphon defrost circuit to facilitate natural circulation of the CO refrigerant. Another notable patent is a defrost system for refrigeration apparatus, which includes a cooling device in a freezer, a heat exchanger pipe, and a refrigerating device for cooling and liquefying CO refrigerant. This system also features a pressure adjusting unit and a first heat exchanger unit that enhances the efficiency of the defrosting process.
Career Highlights
Throughout his career, Choiku Yoshikawa has worked with reputable companies such as Mayekawa Manufacturing Co., Ltd. and Doshisha University. His experience in these organizations has allowed him to refine his skills and contribute to advancements in refrigeration technology.
Collaborations
Yoshikawa has collaborated with notable coworkers, including Makoto Sano and Daiki Kayashima. Their combined expertise has fostered innovation in their respective fields.
Conclusion
Choiku Yoshikawa's contributions to refrigeration technology through his patents and collaborations highlight his role as a leading inventor. His work continues to influence the efficiency and effectiveness of refrigeration systems.
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.