Company Filing History:
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1 out of 10,092 
1 out of 175 
Years Active: 2003-2007
Title: Ryota Umetani: Innovator in Vehicle Technology
Introduction
Ryota Umetani is a notable inventor based in Saitama, Japan. He has made significant contributions to vehicle technology, holding a total of 3 patents. His work focuses on enhancing the functionality and efficiency of automotive systems.
Latest Patents
One of Umetani's latest patents is an odometer system and method for a vehicle. This mileage display system includes a control unit that connects to a motorcycle's ignition switch. It accumulates mileage by processing a pulse signal generated during the motorcycle's operation. The control unit records odometer data in an EEPROM and retrieves it when the ignition is activated. If the odometer data surpasses the maximum display value, the system shows a numeric value representing higher-order digits for a set duration. This innovation ensures accurate tracking of accumulated mileage, even after exceeding the maximum display limit.
Another significant patent is a fuel pump control device. This device allows a small-capacity fuel pump to deliver sufficient fuel to an internal combustion engine. During low-speed vehicle operation, pulsed drive voltages are supplied to the fuel pump based on ignition pulses. This method enables the fuel pump to discharge fuel at a longer cycle. Conversely, at high speeds, a continuous DC voltage is supplied, allowing for a shorter discharge cycle. This innovation optimizes fuel delivery based on vehicle speed.
Career Highlights
Umetani has worked with prominent companies in the automotive industry, including Honda Motor Co., Ltd. and Honda Giken Kogyo Kabushiki Kaisha. His experience in these organizations has contributed to his expertise in vehicle technology and innovation.
Collaborations
Umetani has collaborated with notable colleagues such as Takao Yamamoto and Yoshihiko Tsuchiya. Their combined efforts have led to advancements in automotive technology and improved vehicle systems.
Conclusion
Ryota Umetani is a distinguished inventor whose work in vehicle technology has led to significant innovations. His patents reflect a commitment to enhancing automotive systems, ensuring efficiency and accuracy in vehicle operation.