Company Filing History:
6 out of 3,252 
2 out of 1,838 Years Active: 1982-1988
Title: Hiroo Utsumi: Innovator in Ignition Control Systems
Introduction
Hiroo Utsumi is a notable inventor based in Kariya, Japan. He has made significant contributions to the field of ignition control systems for internal combustion engines. With a total of 6 patents to his name, Utsumi's work has had a lasting impact on automotive technology.
Latest Patents
Utsumi's latest patents include a signal transmission system designed for transmitting ignition timing correction signals. This system is crucial for enhancing the performance of ignition timing control systems in internal combustion engines. The system features an ignitor that produces an ignition timing signal in response to an ignition signal from a distributor. The ignition timing signal is further refined by a correction signal calculated by a computer based on various engine operating conditions. The computer employs a voltage-current converting circuit to transform the ignition timing correction signal into a current signal, which is then sent to the ignitor. Additionally, Utsumi has developed an ignition control system that manages ignition timing when the CPU fails or during engine startup. This system includes a charging and discharging circuit that converts a predetermined crank angle range into a voltage, which is then used to control ignition timing effectively.
Career Highlights
Throughout his career, Hiroo Utsumi has worked with prominent companies in the automotive industry, including Nippondenso Co., Ltd. and Toyota Motor Corporation. His experience in these organizations has allowed him to refine his skills and contribute to innovative automotive solutions.
Collaborations
Utsumi has collaborated with several talented individuals in his field, including Yukio Sakakibara and Teruyoshi Ito. These collaborations have fostered a creative environment that has led to the development of groundbreaking technologies.
Conclusion
Hiroo Utsumi's contributions to ignition control systems have significantly advanced automotive technology. His innovative patents and collaborations with industry leaders highlight his importance as an inventor in this field.