Location History:
- Kyoto, JP (2006 - 2008)
- Machida, JP (2013 - 2014)
- Kanagawa, JP (2008 - 2020)
Company Filing History:
5 out of 6,017 
3 out of 13,415 
1 out of 560 
Years Active: 2006-2020
Title: Innovations by Sho Maruyama
Introduction
Sho Maruyama is a notable inventor based in Kanagawa, Japan. He has made significant contributions to the field of power conversion technology. With a total of 8 patents to his name, Maruyama's work focuses on enhancing the efficiency and safety of power conversion apparatuses.
Latest Patents
Maruyama's latest patents include a temperature abnormality detection method for power conversion apparatus and a temperature abnormality detection device for power conversion apparatus. The temperature abnormality detection method involves detecting the temperatures of a first power converter, a second power converter, and cooling water. It determines the presence of an abnormality in a preceding stage power converter based on the temperature difference between the first power converter and the cooling water. Additionally, it assesses the subsequent stage power converter by analyzing the temperature difference between the second power converter and an added temperature derived from the loss component of the preceding stage power converter. Another significant invention is the over-current detecting apparatus for a switching element, which includes a reference power source, a comparator circuit, and a current converting element. This apparatus effectively monitors the current flowing through the switching element and ensures operational safety.
Career Highlights
Throughout his career, Sho Maruyama has worked with prominent companies such as Rohm Co., Ltd. and Nissan Motor Company Limited. His experience in these organizations has allowed him to develop innovative solutions that address critical challenges in power conversion technology.
Collaborations
Maruyama has collaborated with notable colleagues, including Takeshi Wakii and Toshio Nishida. Their combined expertise has contributed to the advancement of technology in their respective fields.
Conclusion
Sho Maruyama's contributions to power conversion technology through his patents and collaborations highlight his role as an influential inventor. His innovative methods and devices continue to impact the industry positively.