Tosihiko Oohasi

Title: Tosihiko Oohasi: Innovator in Vehicle Power Supply Technology

Introduction

Tosihiko Oohasi is a prominent inventor based in Osaka, Japan. He has made significant contributions to the field of vehicle power supply devices, holding a total of 2 patents. His work focuses on enhancing the accuracy and reliability of power supply systems in vehicles.

Latest Patents

Oohasi's latest patents include a vehicle power supply device and its degradation judgment method. This innovative device features a capacitor unit that stores auxiliary power, along with a temperature sensor, charge circuit, capacitor-unit current detector, capacitor-unit voltage detector, controller, storage, and determination unit. The determination unit plays a crucial role in assessing the degradation level of the capacitor unit by utilizing an internal resistance standard value and a corrected calculated value of capacitance. This advanced structure allows for more accurate degradation assessments, ensuring that the vehicle power supply device can be utilized effectively until the end of its actual life.

Another notable patent is the vehicle power supply device that performs highly accurate degradation determinations of the capacitor unit. In this design, internal resistance and capacitance are corrected based on the temperature of the capacitor unit during charge or discharge. This results in a corrected calculated value of capacitance, which is then used in a degradation determination formula pre-calculated according to the temperature detected by the temperature sensor. When the standard value is equal to or less than the corrected calculated value of internal resistance, the capacitor unit is determined to be degraded.

Career Highlights

Tosihiko Oohasi is currently employed at Panasonic Corporation, where he continues to innovate and develop advanced technologies in the automotive sector. His expertise in vehicle power supply systems has positioned him as a key figure in the industry.

Collaborations

Oohasi has collaborated with notable colleagues, including Yohsuke Mitani and Junji Takemoto. Their combined efforts contribute to the advancement of technology in vehicle power supply systems.

Conclusion

Tosihiko Oohasi's contributions to vehicle power supply technology demonstrate his commitment to innovation and excellence. His patents reflect a deep understanding of the complexities involved in power supply systems, ensuring that vehicles operate efficiently and reliably.