This inventor holds 15 USPTO granted patents and 1 published patent application, primarily in Power Electronics. Top assignees: Fuji Electric Co., Ltd., Fuji Electric Device Technology Co., Ltd., Fuji Electric., Ltd.. Active years: 1993-2026.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Kawasaki, JP (1993 - 2000)
- Tokyo, JP (1997 - 2003)
- Saitama, JP (2008 - 2023)
Company Filing History:
13 out of 4,826 
1 out of 152 
1 out of 213 
Years Active: 1993-2026
Areas of Expertise:
Title: Seiki Igarashi: Innovator in Semiconductor Technology
Introduction
Seiki Igarashi is a prominent inventor based in Saitama, Japan, known for his significant contributions to semiconductor technology. With a total of 15 patents to his name, Igarashi has made remarkable advancements in the field, particularly in driving apparatus and semiconductor devices.
Latest Patents
Igarashi's latest patents include a driving apparatus designed to control a semiconductor device effectively. This apparatus features a driving section that manages the control terminal of the semiconductor device based on external control signals. The semiconductor device consists of a first main terminal, a second main terminal, and a control terminal that regulates the connection state between the two main terminals, which are connected in parallel with a snubber. Additionally, a drive control section is incorporated to reduce the driving capability during specific voltage changes, enhancing the device's performance.
Another notable patent focuses on a semiconductor device that suppresses high-frequency noise generated by SiC elements. This device includes semiconductor elements arranged in series, a SiC diode element connected in parallel, and an oscillation suppressing circuit that mitigates voltage fluctuations caused by the semiconductor element's turn-ons. This innovation significantly improves the reliability of semiconductor devices.
Career Highlights
Throughout his career, Seiki Igarashi has worked with esteemed companies such as Fuji Electric Co., Ltd. and Fuji Electric Device Technology Co., Ltd. His experience in these organizations has allowed him to refine his expertise in semiconductor technology and contribute to various innovative projects.
Collaborations
Igarashi has collaborated with notable colleagues, including Akio Suzuki and Masafumi Tabata. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies in the semiconductor industry.
Conclusion
Seiki Igarashi's contributions to semiconductor technology through his patents and collaborations highlight his role as a key innovator in the field. His work continues to influence advancements in semiconductor devices, ensuring improved performance and reliability.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile