Company Filing History:
2 out of 96 
2 out of 21,351 
1 out of 1,038 
Years Active: 1979-2001
Title: Innovations of Kouichi Hasegawa
Introduction
Kouichi Hasegawa is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of semiconductor technology and emergency lighting systems. With a total of 5 patents, Hasegawa's work reflects his innovative spirit and technical expertise.
Latest Patents
One of Hasegawa's latest patents is a semiconductor integrated circuit that includes a protective transistor designed to protect another transistor during processing. This circuit features a protective NMOS transistor with a drain and source connected to a first interconnection and ground, respectively. The gate electrode remains in a floating state during the formation of the first interconnection, which is created through plasma etching. Another notable patent is for an emergency light that operates on the lever principle. This device incorporates a chemiluminescent light stick that can be easily activated and removed. The design allows for simple operation, where pushing an operating lever engages a pivoting member that facilitates illumination.
Career Highlights
Throughout his career, Kouichi Hasegawa has worked with prominent companies such as Nohmi Bosai Ltd. and Mitsubishi Electric Corporation. His experience in these organizations has contributed to his development as an inventor and innovator in his field.
Collaborations
Hasegawa has collaborated with talented individuals, including Masahito Maeda and Satoshi Demachi. These partnerships have likely enriched his work and led to further advancements in his inventions.
Conclusion
Kouichi Hasegawa's contributions to technology through his patents demonstrate his commitment to innovation. His work in semiconductor circuits and emergency lighting showcases his ability to address practical challenges with creative solutions.