Location History:
- Aichi, JP (1995 - 1997)
- Tokyo, JP (2000 - 2005)
Company Filing History:
Years Active: 1995-2005
Title: Yasushi Ikawa: Innovator in Power Conversion Technology
Introduction
Yasushi Ikawa is a prominent inventor based in Aichi, Japan. He has made significant contributions to the field of power conversion technology, holding a total of 5 patents. His work focuses on enhancing the efficiency and functionality of power converters and motor driving control systems.
Latest Patents
One of Ikawa's latest patents is a power converter employing pulse width modulation control. This innovative power converter includes a first sampling device that samples a first command current value for a power conversion device during a second cycle and produces a second command current value. Additionally, it features a second sampling device that samples a first detected current value pertaining to a load and produces a second detected current value. A command voltage value calculator is also included, which calculates a command voltage value from the second command current value and the second detected current value. The converter utilizes a comparator to compare the second command voltage value with a triangular wave carrier signal, producing a first pulse width modulation (PWM) signal. Furthermore, a multi-pulse prevention device is integrated, which has an inversion detection device for detecting inversion of the first PWM signal and an inversion inhibition device that drives the power conversion device using a second PWM signal to prevent inversion of the first PWM signal.
Another notable patent is related to a motor driving control unit and motor driving control method. This apparatus comprises a current detecting section for detecting an output current from an inverter section. It also includes a current control section that outputs a voltage instruction to a PWM section based on the detected current value, a current instruction from an external device, and a positional signal from an encoder connected to a motor. The PWM section outputs a PWM signal to the inverter section according to the voltage instruction, while an encoder I/F section receives the positional signal for the encoder. The current control section and PWM section are provided in an N potential control section connected to the external interface section, which transmits the current instruction and positional signal through serial communications via an insulating section.
Career Highlights
Yasushi Ikawa is currently employed at Mitsubishi Electric Corporation, where he continues to innovate and develop advanced technologies in power conversion and motor control systems. His expertise and dedication to his work have made him a valuable asset to the company.
Collaborations
Ikawa has collaborated with notable coworkers such as Seisuke Tsutsumi and
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.