This inventor holds 43 USPTO granted patents and 1 published patent application, primarily in Power Supply Technology. Top assignees: Hitachi, Ltd., Hitachi Metals, Ltd., Hitachi Computer Peripherals Co., Ltd.. Active years: 1981-2007.
Location History:
- Hitachi, JP (1981 - 2007)
- Takasaki, JP (2005 - 2007)
Company Filing History:
37 out of 42,717Â 
4 out of 2,333Â 
3 out of 67Â 
Years Active: 1981-2007
Areas of Expertise:
Title: Kenichi Onda: A Trailblazer in Power Supply Innovations
Introduction
Kenichi Onda, an accomplished inventor based in Hitachi, Japan, has made significant contributions to the field of power supply technology. With an impressive portfolio of 43 patents, his work has greatly impacted the efficiency and design of electrical systems.
Latest Patents
Among his latest inventions is a groundbreaking backup power supply system. This innovative device effectively reduces the capacity of the AC-DC converter for peak loads, leading to lower costs and a more compact design for power units. The built-in backup power supply features a peak cut function that allows a secondary battery to share the load current during peak demand periods. In this setup, excess current is discharged from the secondary battery when the load exceeds a predetermined cut level, while the battery is charged when the load falls below this threshold. Additionally, the system intelligently adjusts the peak cut level based on the state of charge (SOC) of the secondary battery and the load pattern, enhancing its overall functionality.
Another notable patent by Onda focuses on a switching power supply device and a semiconductor integrated circuit designed for power supply control. This invention aims to minimize energy losses in both the synchronous rectifier circuit at the secondary side of a DC-DC converter and the full-bridge switching circuit on the primary side. The device uses a transformer for voltage conversion and incorporates synchronous rectifier control mechanisms for optimized current flow, dynamically managing off-timings of synchronous rectification transistors for improved efficiency.
Career Highlights
Onda has held key positions at reputable companies, notably Hitachi, Ltd., where he honed his expertise in electrical engineering and power supply technology. His extensive experience and innovative thinking have positioned him as a leading figure in his field.
Collaborations
Throughout his career, Onda has collaborated with fellow inventors such as Norikazu Tokunaga and Akihiko Kanouda, fostering a productive environment that encourages innovation and the development of advanced power supply solutions.
Conclusion
Kenichi Onda's contributions to power supply technology are marked by his inventive spirit and technical ingenuity. With a wealth of patents to his name, he continues to lead the way in creating efficient and reliable power systems that benefit various sectors within the technology landscape. His work not only showcases individual brilliance but also reflects the collaborative efforts that drive innovation in the industry.