Company Filing History:
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Years Active: 2010-2014
Title: Takahisa Nakai: Innovator in Drive Control and Offset Cancelling Circuits
Introduction
Takahisa Nakai is a notable inventor based in Ogaki, Japan. He has made significant contributions to the field of electrical engineering, particularly in the development of circuits for motor control and signal processing. With a total of 3 patents to his name, Nakai's work has had a considerable impact on the industry.
Latest Patents
One of Nakai's latest patents is a drive control signal generating circuit. This circuit generates a drive control signal for driving a motor and includes an output control circuit with a flip-flop. The flip-flop changes state based on a rotational state signal of the motor crossing a reference value, generating a motor drive control signal accordingly. Additionally, the circuit features a clock generating circuit that defines the timing for reading data in the flip-flop and a PWM conversion circuit that PWM-converts the drive control signal using the clock as a PWM signal. The clock operates at a frequency suitable for the output control circuit and has a specific duty ratio for the PWM signal.
Another significant patent is the offset cancelling circuit for a Hall element. In this circuit, a voltage is applied from four directions to switch the current flowing in the Hall element by 90 degrees. This process sets a first state through a fourth state, allowing the output voltages of the Hall element in these states to be averaged, effectively cancelling offsets.
Career Highlights
Throughout his career, Nakai has worked with prominent companies such as Sanyo Semiconductor Co., Ltd. and Sanyo Electric Co., Ltd. His experience in these organizations has contributed to his expertise in circuit design and innovation.
Collaborations
Nakai has collaborated with notable colleagues, including Takashi Ogawa and Yuichi Matsuo. Their teamwork has likely fostered an environment of creativity and innovation, leading to advancements in their respective fields.
Conclusion
Takahisa Nakai is a distinguished inventor whose work in drive control and offset cancelling circuits has made a lasting impact on electrical engineering. His patents reflect his innovative spirit and dedication to advancing technology.