Company Filing History:
Years Active: 2016-2020
Title: Innovations of Masatomo Ishikawa
Introduction
Masatomo Ishikawa is a prominent inventor based in Kiryu, Japan. He has made significant contributions to the field of motor drive technology, holding a total of seven patents. His work focuses on enhancing the efficiency and functionality of motor drive circuits and apparatuses.
Latest Patents
One of his latest patents is a motor drive circuit designed to drive a brushless DC motor. This circuit includes an upper switch and a lower switch connected in series, along with a gate drive circuit that activates the lower switch. The innovative brake circuit utilizes the inductive voltage generated by the motor to apply a voltage to the gate terminal of the lower switch. The gate drive circuit features a push element that applies a predetermined source voltage and a pull element that removes charge from the gate terminal. Additionally, a rectifier is included to ensure current flows in the correct direction.
Another notable patent is a motor drive apparatus that comprises a rectifier, capacitor, inverter circuit, control portion, and sensing portion. The control portion outputs a drive signal to the motor and quantizes the sensing result to determine the peak voltage value. This system is designed to stop the motor if the peak value falls outside a predetermined range, ensuring safe and efficient operation.
Career Highlights
Masatomo Ishikawa is currently employed at Nidec Servo Corporation, where he continues to innovate in the field of motor technology. His expertise and inventions have contributed to advancements in motor drive systems, making them more reliable and efficient.
Collaborations
He has collaborated with notable coworkers, including Masahiro Tsuchiya and Koji Mizukami, who share his passion for innovation in motor technology.
Conclusion
Masatomo Ishikawa's contributions to motor drive technology through his patents and work at Nidec Servo Corporation highlight his role as a key inventor in this field. His innovative designs continue to influence the efficiency and functionality of motor systems.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.