This inventor holds 2 USPTO granted patents. Top assignee: Rohm Co., Ltd.. Active years: 2015-2025.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 2015-2025
Title: Motoya Kumagai: Innovator in Motor Control and Liquid Crystal Technology
Introduction
Motoya Kumagai is a distinguished inventor based in Kyoto, Japan. He has made significant contributions to the fields of motor control devices and liquid crystal technology. With a total of 2 patents to his name, Kumagai continues to push the boundaries of innovation in his industry.
Latest Patents
Kumagai's latest patents include a motor control device and a liquid crystal driving apparatus. The motor control device is designed to realize a drive signal for each phase in a three-phase modulation control system using an analog circuit. This device comprises a generator, a modulation unit, and an inverting unit. The generator receives an input voltage and generates an analog voltage with a crest value corresponding to the input voltage. The modulation unit then generates a PWM voltage based on this analog voltage, while the inverting unit inverts the duty in a predetermined period of the PWM voltage.
The liquid crystal driving apparatus features a voltage amplifier circuit that includes an input voltage generating unit, an operational amplifier, a feedback resistor unit, a selector control unit, and a selector. This configuration allows for the amplification of the input voltage to match a feedback voltage, thereby generating an output voltage. The feedback resistor unit performs voltage division to create the feedback voltage, while the selector control unit generates a control signal to select the appropriate reference voltage from multiple candidates.
Career Highlights
Kumagai is currently employed at Rohm Co., Ltd., where he applies his expertise in developing advanced electronic components. His work has been instrumental in enhancing the performance and efficiency of various electronic systems.
Collaborations
Throughout his career, Kumagai has collaborated with notable colleagues, including Hiroshi Yaguma and Takashi Nagai. These partnerships have fostered a creative environment that encourages innovation and the sharing of ideas.
Conclusion
Motoya Kumagai is a prominent figure in the realm of motor control and liquid crystal technology. His innovative patents and collaborative efforts continue to shape the future of electronic devices.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile