Location History:
- Yamanashi, JP (2011 - 2020)
- Yamanashi-ken, JP (2020 - 2022)
Company Filing History:
Years Active: 2011-2022
Title: The Innovations of Tsutomu Shikagawa
Introduction
Tsutomu Shikagawa is a prominent inventor based in Yamanashi, Japan. He has made significant contributions to the field of motor drive technology, holding a total of 17 patents. His work has been instrumental in advancing the efficiency and functionality of motor drive devices.
Latest Patents
One of Shikagawa's latest patents is a motor drive device that includes a converter for converting AC voltage from an AC power supply into DC voltage. This device features a smoothing capacitor that smooths the DC voltage output from the converter, along with an inverter that converts the smoothed DC voltage back into AC voltage to drive a motor. Additionally, it incorporates a regenerative circuit that short-circuits the ends of the smoothing capacitor during an emergency stop, ensuring safety and reliability.
Another notable patent is a motor driving device and determination method that includes a rectifier circuit for rectifying AC input voltage to DC voltage. This device is equipped with a relay that outputs a contact signal when the input voltage is detected. It also features various detectors for monitoring input and capacitor voltages, along with storage units for data backup operations.
Career Highlights
Tsutomu Shikagawa is currently employed at Fanuc Corporation, a leading company in automation and robotics. His innovative work in motor drive technology has positioned him as a key figure in the industry. His patents reflect a deep understanding of electrical engineering and a commitment to enhancing motor performance.
Collaborations
Shikagawa has collaborated with notable coworkers such as Sou Saito and Kiichi Inaba. Their combined expertise has contributed to the successful development of advanced motor drive technologies.
Conclusion
Tsutomu Shikagawa's contributions to motor drive technology through his patents and work at Fanuc Corporation highlight his role as an influential inventor. His innovations continue to shape the future of automation and robotics.
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.